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| Player | Team | Agency | Notes |
|---|---|---|---|
| David Aardsma | Blue Jays | TWC Sports | |
| Fernando Abad | Brewers | The MAS+ Agency | |
| Juan Abreu | Dodgers | Platinum Sports | |
| Jose Abreu | Astros | ISE Baseball | |
| Domingo Acevedo | Athletics | Wasserman | |
| Dustin Ackley | Mariners | Boras Corporation | |
| Ronald Acuna | Braves | Rep 1 Baseball | |
| Jason Adam | Padres | Platinum Sports | |
| Willy Adames | Brewers | CAA Sports | |
| Matt Adams | Nationals | Wasserman | |
| Lane Adams | Twins | Platinum Sports | |
| Mike Adams | ACES | Josh Yates | |
| Russ Adams | Mets | CSE | |
| Spencer Adams | White Sox | Jet Sports Management | |
| Ryan Adams | Orioles | Paragon Sports International | |
| Austin Adams | Athletics | Beverly Hills Sports Council | |
| Nathan Adcock | Orioles | Paragon Sports International | |
| Jo Adell | Angels | Boras Corporation | |
| Ross Adolph | Astros | Pro Star Management, Inc. | |
| Ehire Adrianza | Angels | Munger English Sports Management | |
| Jeremy Affeldt | Giants | Moye Sports Associates | |
| Jesus Aguilar | Braves | MVP Sports Group | |
| Nick Ahmed | Padres | Meister Sports Management | |
| Shogo Akiyama | Padres | Excel Sports Management | |
| Jonathan Albaladejo | Mets | C.L. Rocks Corporation | |
| Matt Albers | Brewers | SSG Baseball | |
| Andrew Albers | Mariners | True Gravity Baseball | |
| Hanser Alberto | White Sox | CAA Sports | |
| Jose Albertos | Cubs | GSE Worldwide | |
| Ozzie Albies | Braves | SportsMeter | |
| Al Alburquerque | Blue Jays | MVP Sports Group | |
| Arismendy Alcantara | Giants | GSE Worldwide | |
| Cory Aldridge | Angels | True Gravity Baseball | |
| Tyler Alexander | Athletics | SSG Baseball | |
| Jorge Alfaro | Cubs | CAA Sports | |
| Eliezer Alfonzo | Rockies | Octagon | |
| Anthony Alford | Indians | Jet Sports Management | |
| Kolby Allard | Phillies | Excel Sports Management | |
| Cody Allen | Cubs | Meister Sports Management | |
| Brandon Allen | Reds | ISE Baseball | |
| Erick Almonte | Brewers | Ballplayers Agency | |
| Miguel Almonte | Angels | ISE Baseball | |
| Abraham Almonte | Mets | ISE Baseball | |
| Yency Almonte | Cubs | Rosenhaus Sports Representation | |
| Albert Almora | Diamondbacks | Magnus Sports | |
| Yonder Alonso | Padres | MVP Sports Group | |
| Aaron Altherr | Mets | All Bases Covered Sports Management | Scott Leventhal |
| Jose Altuve | Astros | Boras Corporation | |
| Henderson Alvarez | Nationals | DJ Rengifo Y Associates LLC | |
| Dariel Alvarez | Orioles | Octagon | |
| R.J. Alvarez | Mets | Global Sporting Integration | |
| Yadier Alvarez | Dodgers | Wasserman | |
| Jose Alvarez | Tigers | Wasserman | |
| Pedro Alvarez | Marlins | Boras Corporation | |
| Yordan Alvarez | Astros | MVP Sports Group | |
| Alexi Amarista | Phillies | DJ Rengifo Y Associates LLC | |
| Hector Ambriz | Nationals | Lagardere Sports | |
| Jeff Ames | Twins | Wasserman | |
| Alfredo Amezaga | Dodgers | The Sparta Group | |
| Brian Anderson | White Sox | Lagardere Sports | |
| Brett Anderson | Brewers | GSE Worldwide | Brian Peters |
| Bryan Anderson | Athletics | Paragon Sports International | |
| Matt Anderson | Phillies | Paragon Sports International | |
| Chase Anderson | Rangers | Hub Sports Management | |
| Cody Anderson | Indians | GSE Worldwide | |
| Shaun Anderson | Marlins | Jet Sports Management | |
| Brian Anderson | Braves | CAA Sports | |
| Nick Anderson | Orioles | Gaeta Sports Management | |
| Ian Anderson | Braves | ACES | |
| Tim Anderson | Marlins | Reynolds Sports Management | |
| Tom Anderson | White Sox | Reynolds Sports Management | |
| Chris Anderson | Twins | ACES | |
| Lars Anderson | Dodgers | ISE Baseball | |
| Tyler Anderson | Angels | GSE Worldwide | |
| Jacob Anderson | Blue Jays | Wasserman | |
| Robert Andino | Orioles | GSE Worldwide | |
| Matt Andriese | Marlins | Beverly Hills Sports Council | |
| Elvis Andrus | Diamondbacks | Boras Corporation | |
| Miguel Andujar | Athletics | Octagon | |
| Matt Angle | Dodgers | Meister Sports Management | |
| Rick Ankiel | Mets | Boras Corporation | |
| Tejay Antone | Reds | The L. Warner Companies, Inc. | |
| Mike Antonini | Dodgers | The L. Warner Companies, Inc. | |
| Norichika Aoki | Mets | CAA Sports | Nez Balelo |
| Mark Appel | Phillies | Boras Corporation | |
| Jayson Aquino | Orioles | Beverly Hills Sports Council | |
| Aristides Aquino | Rep 1 Baseball | Nelson Montes de Oca | |
| Pedro Araujo | Orioles | Rep 1 Baseball | Nelson Montes de Oca |
| Elvis Araujo | Marlins | GSI | |
| Trae Arbet | Pirates | SSG Baseball | |
| Chris Archer | Twins | VC Sports Group | |
| Oswaldo Arcia | Diamondbacks | Martin Arburua | |
| Nolan Arenado | Rockies | Wasserman | |
| J.P. Arencibia | Rays | CAA Sports | |
| Noel Arguelles | Nationals | Rep 1 Baseball | |
| Joaquin Arias | Diamondbacks | Octagon | |
| Shawn Armstrong | Cubs | ISE Baseball | |
| Jonathan Aro | Braves | GSE Worldwide | |
| Luis Arraez | Padres | MVP Sports Group | |
| Jose Arredondo | Reds | World Sports Agency | |
| Jake Arrieta | Padres | Boras Corporation | |
| Bronson Arroyo | Nationals | Turn 2 Sports Management | |
| Christian Arroyo | Brewers | O'Connell Sports Management | |
| Jose Ascanio | Dodgers | Wasserman | |
| Cody Asche | Twins | Beverly Hills Sports Council | |
| Yeison Asencio | Padres | Beverly Hills Sports Council | |
| Barrett Astin | Reds | Frontline | |
| Carlos Asuaje | Dodgers | Double Diamond Sports Management | |
| Scott Atchison | Twins | Rich Thompson | |
| Garrett Atkins | Pirates | Jeff Blank | |
| Michael Aubrey | Nationals | GSE Worldwide | |
| Bryan Augenstein | Padres | Bo McKinnis | |
| Phillippe Aumont | Blue Jays | Sports One Athlete Management | |
| Tyler Austin | Brewers | Ballengee Group | |
| Xavier Avery | Braves | CSE | |
| Alex Avila | Nationals | Excel Sports Management | |
| Luis Avilan | Nationals | SPS Sports Group | |
| Mike Aviles | Marlins | GSE Worldwide | |
| Dylan Axelrod | Marlins | Bailey Axelrod | |
| John Axford | Brewers | Beverly Hills Sports Council | |
| Luis Ayala | Blue Jays | Paragon Sports International | |
| Erick Aybar | Twins | Roc Nation Sports | |
| Burke Badenhop | Rangers | ACES | |
| Ji-Hwan Bae | Pirates | Vanguard Sports Group | |
| Pedro Baez | Dodgers | Kelvin Nova | |
| Michael Baez | Padres | Boras Corporation | |
| Danys Baez | Phillies | GSE Worldwide | |
| Javier Baez | Tigers | Wasserman | |
| Andrew Bailey | Angels | Excel Sports Management | Jim Murray |
| Homer Bailey | Athletics | Excel Sports Management | |
| Jeff Baker | Marlins | Boras Corporation | |
| John Baker | Mariners | CAA Sports | Joe Urbon |
| Scott Baker | Dodgers | Octagon | |
| Wladimir Balentien | Octagon | ||
| Collin Balester | Giants | Reynolds Sports Management | |
| Grant Balfour | Rays | ACES | |
| Trey Ball | Red Sox | Wasserman | |
| Anthony Banda | Dodgers | ALIGND Sports Agency | |
| Jett Bandy | Red Sox | Apex Baseball | |
| Josh Banks | Orioles | Gary Sheffield | |
| Brian Bannister | Lagardere Sports | ||
| Caleb Baragar | Twins | Wasserman | |
| Rod Barajas | Diamondbacks | MVP Sports Group | |
| Johnny Barbato | Tigers | GSE Worldwide | |
| Daniel Bard | Rockies | ISE Baseball | |
| Josh Bard | Dodgers | Octagon | |
| Brian Barden | Rangers | John Boggs & Associates | |
| Clint Barmes | Royals | Meister Sports Management | |
| Scott Barnes | Cubs | Meister Sports Management | |
| Matt Barnes | Nationals | ISE Baseball | |
| Brandon Barnes | Twins | PSI Sports Management | |
| Danny Barnes | Orioles | Jon Fetterolf | |
| Tony Barnette | Cubs | Wasserman | |
| Darwin Barney | Rangers | CAA Sports | Joe Urbon |
| Tucker Barnhart | Reds | Ballengee Group | |
| Keon Barnum | White Sox | Reynolds Sports Management | |
| Steven Baron | Indians | The MAS+ Agency | |
| Kyle Barraclough | Rangers | PSI Sports Management | |
| Henry Barrera | Royals | The Sparta Group | |
| Aaron Barrett | Phillies | Excel Sports Management | |
| Jake Barrett | Yankees | Octagon | Lou John Nero |
| Jaime Barria | Indians | Octagon | |
| Joey Bart | Pirates | Excel Sports Management | |
| Jason Bartlett | Twins | Lagardere Sports | |
| Daric Barton | Blue Jays | MVP Sports Group | |
| Anthony Bass | Blue Jays | Beverly Hills Sports Council | |
| Chris Bassitt | Blue Jays | Pro Star Management, Inc. | |
| Antonio Bastardo | Diamondbacks | GSE Worldwide | |
| Miguel Batista | Blue Jays | World Sports Agency | |
| Lay Batista | Angels | Frye McCann Sports | Mike McCann |
| Trevor Bauer | Dodgers | Luba Sports | |
| Buddy Baumann | Orioles | Frontline | |
| Gerson Bautista | Mariners | Z-Axis Sports | |
| Felix Bautista | Orioles | JNP Group LLC | |
| Jose Bautista | Phillies | Octagon | Jay Alou |
| Mike Baxter | Mariners | Beverly Hills Sports Council | |
| Jason Bay | Mariners | CAA Sports | Joe Urbon |
| Brandon Beachy | Giants | Icon Sports Management | |
| Pedro Beato | Phillies | Excel Sports Management | |
| Matt Beaty | Diamondbacks | Ballengee Group | |
| Blake Beavan | Mets | Excel Sports Management | |
| Josh Beckett | Dodgers | Moye Sports Associates | |
| Gordon Beckham | Mets | CAA Sports | |
| Tim Beckham | White Sox | Wasserman | |
| Erik Bedard | Dodgers | ISE Baseball | |
| Tyler Beede | Indians | ACES | |
| Jalen Beeks | Pirates | Frontline | |
| Seth Beer | Diamondbacks | ACES | |
| Joe Beimel | Padres | Frye McCann Sports | Mike McCann |
| Mike Belfiore | Tigers | CAA Sports | |
| Ronald Belisario | Red Sox | McNamara Baseball Group | |
| Matt Belisle | Twins | CAA Sports | Greg Landry |
| Heath Bell | Nationals | Ballengee Group | |
| Josh Bell | Padres | Boras Corporation | |
| Chad Bell | Braves | The Bledsoe Agency | |
| Josh Bell | Diamondbacks | Boras Corporation | |
| Ronnie Belliard | Phillies | Bryce Dixon | |
| Cody Bellinger | Cubs | Boras Corporation | |
| Brayan Bello | Red Sox | ISE Baseball | |
| Vince Belnome | Rays | O'Connell Sports Management | |
| Brandon Belt | Blue Jays | Excel Sports Management | J.D. Smart |
| Carlos Beltran | Astros | MVP Sports Group | |
| Adrian Beltre | Rangers | Boras Corporation | |
| Engel Beltre | Giants | Boras Corporation | |
| Anthony Bemboom | Tigers | Sterling Sports Management | |
| Andrew Benintendi | White Sox | Excel Sports Management | |
| Nick Bennett | Brewers | MSM Sports | |
| Joaquin Benoit | Nationals | ACES | |
| Joe Benson | Twins | ISE Baseball | |
| Travis Bergen | Padres | Sterling Sports Management | |
| Brad Bergesen | Diamondbacks | Paragon Sports International | |
| Christian Bergman | Mariners | All Bases Covered Sports Management | Damon Lapa |
| Jason Bergmann | Rockies | Beverly Hills Sports Council | |
| Jason Berken | Cubs | ISE Baseball | |
| Lance Berkman | Rangers | Moye Sports Associates | |
| Roger Bernadina | Mets | All Bases Covered | |
| Jose Berrios | Blue Jays | Wasserman | |
| Quintin Berry | Yankees | John Boggs & Associates | |
| Tim Berry | Orioles | Full Circle Sports Management | |
| Jon Berti | Yankees | Ballplayers Agency | |
| Dellin Betances | Dodgers | Excel Sports Management | |
| Rafael Betancourt | Rockies | Octagon | |
| Yuniesky Betancourt | Miami Sports Management | ||
| Wilson Betemit | Rays | ISE Baseball | |
| Christian Bethancourt | Cubs | Boras Corporation | |
| Chad Bettis | Yankees | CAA Sports | |
| Mookie Betts | Dodgers | VC Sports Group | |
| Chris Betts | Dodgers | MVP Sports Group | |
| Jordan Betts | Red Sox | C.L. Rocks Corporation | |
| Jeff Bianchi | Rockies | Lagardere Sports | |
| Austin Bibens-Dirkx | Dodgers | Ballplayers Agency | |
| Bo Bichette | Blue Jays | CAA Sports | |
| Dante Bichette Jr. | Nationals | Moye Sports Associates | |
| Phil Bickford | Yankees | GSE Worldwide | |
| Jesse Biddle | Diamondbacks | Apex Baseball | |
| Shane Bieber | Indians | Rosenhaus Sports Representation | |
| Brandon Bielak | Athletics | Jack Toffey | |
| Bruce Billings | Nationals | John Boggs & Associates | |
| Chad Billingsley | Phillies | Hilliard Sports Management | |
| Greg Bird | Yankees | GSE Worldwide | |
| Kurt Birkins | Jim McDowell | ||
| Hunter Bishop | Giants | Boras Corporation | |
| Brian Bixler | Phillies | Octagon | |
| Ty Blach | Rockies | Sports Pro Services | Danny Burgers |
| Vic Black | Mets | CAA Sports | Greg Landry |
| Ray Black | Brewers | Ballengee Group | |
| Nick Blackburn | Twins | The L. Warner Companies, Inc. | |
| Travis Blackley | Tigers | Lagardere Sports | |
| Charlie Blackmon | Rockies | ACES | |
| Aaron Blair | Diamondbacks | PSI Sports Management | |
| Casey Blake | Rockies | Jim McDowell | |
| Andres Blanco | Brewers | GSE Worldwide | |
| Gregor Blanco | Mets | Octagon | |
| Henry Blanco | Mariners | Elite Sports Group | |
| Kyle Blanks | Apex Baseball | ||
| Joe Blanton | Nationals | CAA Sports | Jeff Berry |
| Jabari Blash | Angels | Primetime Sports Group | |
| Michael Blazek | Diamondbacks | All Bases Covered Sports Management | Scott Leventhal |
| Jerry Blevins | Mets | Excel Sports Management | Bobby Barad |
| Willie Bloomquist | Diamondbacks | Boras Corporation | |
| Geoff Blum | Astros | Wasserman | |
| Brian Bocock | Phillies | Sports One Athlete Management | |
| Brennan Boesch | Red Sox | CAA Sports | |
| Xander Bogaerts | Padres | Boras Corporation | |
| Mitchell Boggs | Braves | CSE | |
| Brian Bogusevic | Red Sox | Beverly Hills Sports Council | |
| Alec Bohm | Phillies | Boras Corporation | |
| Ronald Bolanos | Marlins | Magnus Sports | |
| Mike Bolsinger | Blue Jays | Lagardere Sports | Ryan Ware |
| Skye Bolt | Braves | Jet Sports Management | |
| Jeremy Bonderman | Tigers | GSE Worldwide | |
| Emilio Bonifacio | Nationals | Mato Sports Management | Paul Kinzer |
| Jorge Bonifacio | Royals | ISE Baseball | |
| Boof Bonser | Giants | Reynolds Sports Management | |
| Julio Borbon | Orioles | Boras Corporation | |
| Joe Borchard | Jim McDowell | ||
| Ryan Borucki | Pirates | ISE Baseball | |
| J.C. Boscan | Royals | O'Connell Sports Management | |
| David Bote | Cubs | Magnus Sports | |
| Justin Bour | Giants | Marc Kligman | |
| Peter Bourjos | Angels | Platinum Sports | |
| Michael Bourn | Angels | Lagardere Sports | |
| Michael Bowden | Twins | Turner Gary Sports | |
| Shawn Bowman | Braves | ACES | |
| Matthew Bowman | Orioles | Jon Fetterolf | |
| Brad Boxberger | Cubs | Boras Corporation | |
| Matthew Boyd | Indians | Boras Corporation | |
| Hudson Boyd | Twins | Career Sports | |
| Blaine Boyer | Royals | Moye Sports Associates | |
| Brad Brach | Braves | Big League Management Company, LLC | Brian Charles |
| Andrew Brackman | White Sox | Boras Corporation | |
| Zach Braddock | Padres | CAA Sports | Jeff Berry |
| Dallas Braden | Athletics | MVP Sports Group | |
| Chasen Bradford | Mariners | Pierce Sports and Entertainment | Steve Pierce |
| Milton Bradley | Mariners | ACES | |
| Archie Bradley | Marlins | BBI Sports Group | |
| Jed Bradley | Orioles | GSE Worldwide | |
| Jackie Bradley Jr. | Mets | Boras Corporation | |
| Sean Brady | Indians | O'Connell Sports Management | |
| Michael Brantley | Astros | Excel Sports Management | |
| Rob Brantly | Rays | Lagardere Sports | |
| Russell Branyan | Indians | ACES | |
| Ryan Brasier | Dodgers | ALIGND Sports Agency | |
| Steven Brault | Cubs | The L. Warner Companies, Inc. | |
| Ryan Braun | Brewers | CAA Sports | Nez Balelo |
| Bill Bray | Nationals | Octagon | |
| Alex Bregman | Astros | Boras Corporation | |
| Bryce Brentz | Red Sox | CAA Sports | |
| Craig Breslow | Blue Jays | Baratta Partners | |
| Charles Brewer | Indians | CAA Sports | |
| Bryan Brickhouse | Royals | Excel Sports Management | |
| Parker Bridwell | Twins | BBI Sports Group | |
| Bryson Brigman | Marlins | Ballengee Group | |
| Reid Brignac | Nationals | Beverly Hills Sports Council | Nate Heisler |
| Lewis Brinson | Giants | Excel Sports Management | |
| Socrates Brito | Yankees | The MAS+ Agency | |
| Zach Britton | Yankees | Boras Corporation | |
| Drake Britton | Tigers | ACES | |
| Mike Broadway | Royals | Orpheus Sports | |
| Connor Brogdon | Dodgers | PSI Sports Management | |
| David Bromberg | Twins | Lagardere Sports | |
| Aaron Brooks | Athletics | Paragon Sports International | |
| Rex Brothers | Brewers | Jet Sports Management | |
| Corey Brown | Dodgers | O'Connell Sports Management | |
| Domonic Brown | Rockies | Boras Corporation | |
| Gary Brown | Angels | Boras Corporation | |
| Brooks Brown | Dodgers | ACES | |
| Dusty Brown | Rangers | ISE Baseball | |
| Jonathan Broxton | Cardinals | Jet Sports Management | |
| Keon Broxton | Brewers | Reynolds Sports Management | |
| Kris Bryant | Rockies | Boras Corporation | |
| Kris Bubic | Royals | Apex Baseball | |
| David Buchanan | Reds | TWC Sports | |
| Clay Buchholz | Blue Jays | ISE Baseball | |
| Taylor Buchholz | Mets | Kohm/Pasti | |
| Ryan Buchter | Mariners | The L. Warner Companies, Inc. | |
| John Buck | Braves | ACES | |
| Travis Buck | Padres | CAA Sports | |
| Billy Buckner | Angels | CAA Sports | |
| Walker Buehler | Dodgers | Excel Sports Management | |
| Mark Buehrle | Blue Jays | CAA Sports | Jeff Berry |
| Jay Buente | Rays | John Shinn | |
| Bryan Bullington | Excel Sports Management | ||
| Madison Bumgarner | Diamondbacks | VC Sports Group | |
| Aaron Bummer | Braves | O'Connell Sports Management | |
| Dylan Bundy | Mets | BBI Sports Group | |
| Jake Burger | Marlins | The Bledsoe Agency | |
| Enrique Burgos | Tigers | Sports Management Partners | |
| Hiram Burgos | Brewers | GSE Worldwide | |
| Brock Burke | Angels | Apex Baseball | |
| A.J. Burnett | Pirates | Frontline | |
| Alex Burnett | Cubs | The Sparta Group | |
| Sean Burnett | Mets | C.L. Rocks Corporation | |
| Billy Burns | Royals | All Bases Covered | |
| Pat Burrell | Giants | GSE Worldwide | |
| Brian Burres | Giants | Marc Kligman | |
| Emmanuel Burriss | Angels | CAA Sports | Nez Balelo |
| Sean Burroughs | Dodgers | Wasserman | |
| Beau Burrows | Phillies | Frontline | |
| Jared Burton | Rangers | Pro Agents, Inc. | Dave Pepe |
| David Bush | Blue Jays | Turner Gary Sports | |
| Drew Butera | Astros | David Schwartz | |
| Billy Butler | Yankees | GSE Worldwide | |
| Josh Butler | Brewers | Beverly Hills Sports Council | |
| Joey Butler | Nationals | Frye McCann Sports | |
| Byron Buxton | Twins | Jet Sports Management | |
| Marlon Byrd | Indians | ACES | |
| Tim Byrdak | Mets | Only Baseball Players | Mike Mosa |
| Cesar Cabral | Red Sox | Octagon | |
| Asdrubal Cabrera | Reds | Mato Sports Management | |
| Everth Cabrera | White Sox | Boras Corporation | |
| Fernando Cabrera | Giants | C.L. Rocks Corporation | |
| Melky Cabrera | Mets | Rep 1 Baseball | |
| Miguel Cabrera | Tigers | ISE Baseball | |
| Orlando Cabrera | Giants | MVP Sports Group | |
| Mauricio Cabrera | White Sox | Movement Management Group | |
| Edwar Cabrera | Astros | Para Sports & Entertainment Group, LLC | |
| Ramon Cabrera | Marlins | Octagon | |
| Alberto Cabrera | Tigers | Rep 1 Baseball | |
| Freddie Cabrera | Dodgers | C.L. Rocks Corporation | |
| Trevor Cahill | Mets | John Boggs & Associates | |
| Matt Cain | Giants | CAA Sports | |
| Lorenzo Cain | Brewers | All Bases Covered | |
| Miguel Cairo | Reds | ACES | |
| Kole Calhoun | Indians | PSI Sports Management | |
| Willie Calhoun | Angels | MVP Sports Group | |
| Alberto Callaspo | Dodgers | Magnus Sports | |
| Johan Camargo | Tigers | Octagon | |
| Mike Cameron | Nationals | The Sparta Group | |
| Arquimedes Caminero | Mets | Rep 1 Baseball | |
| Shawn Camp | Phillies | Dave Meier | |
| Tony Campana | White Sox | Pro Star Management, Inc. | |
| Eric Campbell | Athletics | Octagon | |
| Vicente Campos | Pirates | TLA Worldwide | |
| Luis Campusano | Padres | Ballengee Group | |
| Robinson Cancel | Astros | C.L. Rocks Corporation | |
| Mark Canha | Giants | CAA Sports | |
| Mitch Canham | Cardinals | Frontline | |
| Robinson Cano | Braves | Roc Nation Sports | |
| Jorge Cantu | Angels | Wasserman | |
| Russ Canzler | Phillies | Appleton Sports Management | |
| Carter Capps | Padres | GSE Worldwide | |
| Matt Capps | Diamondbacks | Rep 1 Baseball | Kelly Kinzer |
| Chris Capuano | Brewers | Excel Sports Management | |
| Victor Caratini | Astros | MDR Sports Management | |
| Adrian Cardenas | Cubs | Moye Sports Associates | |
| Andrew Carignan | Athletics | ISE Baseball | |
| Dylan Carlson | Rays | ALIGND Sports Agency | |
| Jesse Carlson | Red Sox | Elite Sports Group | |
| Buddy Carlyle | Mets | Octagon | |
| Mike Carp | Orioles | O'Connell Sports Management | |
| Andrew Carpenter | Cubs | Beverly Hills Sports Council | |
| Chris Carpenter | Cardinals | Professional Sports Representation, Inc. | |
| David Carpenter | Braves | ISE Baseball | |
| David Carpenter | Red Sox | Sports One Athlete Management | |
| Matt Carpenter | Cardinals | SSG Baseball | |
| Nick Carr | Mets | The Sparta Group | |
| Adam Carr | Nationals | ACES | |
| Carlos Carrasco | Indians | ACES | |
| D.J. Carrasco | Braves | Lagardere Sports | |
| Ezequiel Carrera | Dodgers | GSE Worldwide | |
| Cesar Carrillo | Tigers | CAA Sports | |
| Jamey Carroll | Nationals | MSM Sports | |
| Scott Carroll | Cubs | Frontline | |
| Corbin Carroll | Diamondbacks | CAA Sports | |
| Robert Carson | Dodgers | The Sparta Group | |
| Chris Carter | Twins | Sports Management Partners | |
| Anthony Carter | Rangers | Alex Slattery | |
| Curt Casali | Giants | Beverly Hills Sports Council | |
| Andrew Cashner | Red Sox | CAA Sports | Peter Vescovo |
| Alexi Casilla | Tigers | Proformance | |
| Santiago Casilla | Rockies | GSE Worldwide | |
| Bobby Cassevah | Rockies | Lagardere Sports | |
| Nicholas Castellanos | Phillies | Boras Corporation | |
| Welington Castillo | Nationals | ACES | |
| Fabio Castillo | Dodgers | Ballplayers Agency | |
| Rusney Castillo | Red Sox | Roc Nation Sports | |
| Luis Castillo | Mariners | Republik Sports | |
| Luis Castillo | Phillies | ACES | |
| Fabio Castro | Mariners | ACES | |
| Jason Castro | Astros | ISE Baseball | |
| Juan Castro | Dodgers | Oscar Suarez | |
| Ramon Castro | White Sox | Eric Goldschmidt | |
| Starlin Castro | Nationals | Magnus Sports | |
| Daniel Castro | Mariners | Victor Tranquillo | |
| Willi Castro | Twins | ISE Baseball | |
| Miguel Castro | Diamondbacks | Ballengee Group | |
| Jake Cave | Rockies | Ballengee Group | |
| Dylan Cease | Padres | ACES | |
| Brett Cecil | Cardinals | ACES | |
| Darrell Ceciliani | Blue Jays | PSI Sports Management | Page Odle |
| Jose Ceda | Marlins | Rep 1 Baseball | |
| Xavier Cedeno | Cubs | MDR Sports Management | |
| Ronny Cedeno | Giants | Eric Goldschmidt | |
| Juan Centeno | Diamondbacks | The MAS+ Agency | |
| Francisco Cervelli | Marlins | Republik Sports | |
| Hunter Cervenka | Cardinals | Meister Sports Management | |
| Yoenis Cespedes | Mets | Roc Nation Sports | |
| Gustavo Chacin | Astros | GSE Worldwide | |
| Jhoulys Chacin | Rockies | Rep 1 Baseball | |
| Andrew Chafin | Rangers | Meister Sports Management | |
| Joba Chamberlain | Brewers | Excel Sports Management | Jim Murray |
| Adron Chambers | Cubs | Wasserman | |
| Jaye Chapman | Rangers | Double Diamond Sports Management | |
| Kevin Chapman | Tigers | ISE Baseball | |
| Aroldis Chapman | Pirates | Magnus Sports | |
| Matt Chapman | Giants | Boras Corporation | |
| Tyler Chatwood | Diamondbacks | Excel Sports Management | |
| Johermyn Chavez | Cubs | GSE Worldwide | |
| Endy Chavez | Mariners | GSE Worldwide | |
| Eric Chavez | Diamondbacks | All Bases Covered | |
| Jesse Chavez | Braves | Apex Baseball | |
| Raul Chavez | Mets | GSE Worldwide | |
| Bruce Chen | Indians | Boras Corporation | |
| Wei-Yin Chen | Boras Corporation | ||
| Robinson Chirinos | Orioles | MDR Sports Management | |
| Yonny Chirinos | Marlins | MDR Sports Management | |
| Lonnie Chisenhall | Pirates | Turner Gary Sports | |
| Jazz Chisholm | Yankees | Roc Nation Sports | |
| Randy Choate | Dodgers | ACES | |
| Michael Choice | Rockies | Frye McCann Sports | |
| Shin-Soo Choo | Rangers | Boras Corporation | |
| Justin Christian | Cardinals | Platinum Sports | |
| Vinnie Chulk | CAA Sports | ||
| Ryan Church | Beverly Hills Sports Council | ||
| Tony Cingrani | Cubs | The Bledsoe Agency | |
| Alex Cintron | C.L. Rocks Corporation | ||
| Pedro Ciriaco | Marlins | Z-Axis Sports | |
| Steve Cishek | Nationals | Jet Sports Management | |
| Nick Ciuffo | Yankees | Frontline | |
| Aaron Civale | Brewers | Jack Toffey | |
| Ian Clarkin | Diamondbacks | John Boggs & Associates | |
| Alex Claudio | Brewers | MDR Sports Management | |
| Sam Clay | Tigers | Ballengee Group | |
| Jeff Clement | Twins | CAA Sports | |
| Steve Clevenger | The L. Warner Companies, Inc. | ||
| Mike Clevinger | White Sox | ACES | |
| Trevor Clifton | Diamondbacks | Wasserman | |
| Tyler Clippard | Nationals | Excel Sports Management | Casey Close |
| Tyler Cloyd | Mariners | Big League Management Company, LLC | Brian Charles |
| Buck Coats | Nationals | Proformance | |
| Alex Cobb | Indians | Beverly Hills Sports Council | |
| Todd Coffey | Braves | Beverly Hills Sports Council | |
| Chris Coghlan | Blue Jays | Boras Corporation | |
| Phil Coke | Pirates | Full Circle Sports Management | |
| Chris Colabello | Indians | Big League Management Company, LLC | Brian Charles |
| A.J. Cole | Blue Jays | CAA Sports | |
| Gerrit Cole | Yankees | Boras Corporation | |
| Casey Coleman | Mets | ISE Baseball | |
| Louis Coleman | Tigers | Frontline | |
| Tyler Collins | Royals | Beverly Hills Sports Council | |
| Tim Collins | Rockies | Octagon | |
| Josh Collmenter | Braves | The Sparta Group | |
| Jesus Colome | Rockies | Ballplayers Agency | |
| Alex Colome | White Sox | Wasserman | |
| Christian Colon | Blue Jays | ACES | |
| Bartolo Colon | Rangers | Wasserman | Adam Katz |
| Roman Colon | Royals | Hendricks Sports | |
| Tyler Colvin | Dodgers | ISE Baseball | |
| Kevin Comer | Astros | Octagon | |
| Clay Condrey | Twins | Rowley Sports Management | |
| Zach Cone | Rangers | Boras Corporation | |
| Zach Cone | Rangers | Boras Corporation | |
| Michael Conforto | Giants | Boras Corporation | |
| Hank Conger | Diamondbacks | Wasserman | |
| Adam Conley | Rays | CAA Sports | |
| Brooks Conrad | Royals | Paragon Sports International | |
| Carlos Contreras | Reds | Rep 1 Baseball | |
| Jose Contreras | Rangers | Jaime Torres | |
| Aaron Cook | Rockies | Pro Star Management, Inc. | |
| Ryan Cook | Marlins | Excel Sports Management | Bobby Barad |
| Sam Coonrod | Mets | Wasserman | |
| Garrett Cooper | Orioles | Ballengee Group | |
| David Cooper | Mets | CAA Sports | |
| Alex Cora | Cardinals | Boras Corporation | |
| Patrick Corbin | Nationals | ISE Baseball | |
| Daniel Corcino | Dodgers | Rep 1 Baseball | |
| Jimmy Cordero | Yankees | Octagon | |
| Chad Cordero | Angels | Reynolds Sports Management | |
| Francisco Cordero | Red Sox | ISE Baseball | |
| Franchy Cordero | Yankees | Republik Sports | |
| Erik Cordier | Red Sox | Icon Sports Management | Rob Martin |
| Bryan Corey | PSI Sports Management | ||
| Manuel Corpas | Rockies | O'Connell Sports Management | |
| Carlos Corporan | Cubs | MDR Sports Management | |
| Carlos Correa | Twins | WME Baseball | |
| Kevin Correia | Phillies | All Bases Covered | |
| Daniel Cortes | Diamondbacks | The Sparta Group | |
| Jarred Cosart | Padres | Boras Corporation | |
| Chris Coste | Patrick Arter | ||
| Jharel Cotton | Giants | Legacy Agency | Steve Veltman |
| Neal Cotts | Nationals | Pro Star Management, Inc. | |
| Daniel Coulombe | Orioles | Elite Sports Group | |
| Craig Counsell | Brewers | Meister Sports Management | |
| Kaleb Cowart | Angels | ISE Baseball | |
| Collin Cowgill | Mariners | BASH Baseball | |
| Zack Cox | Tigers | ISE Baseball | |
| Zack Cozart | Giants | Excel Sports Management | |
| Allen Craig | Padres | ACES | |
| Jesse Crain | White Sox | ISE Baseball | |
| Tyler Cravy | Brewers | All Bases Covered Sports Management | Damon Lapa |
| Carl Crawford | Dodgers | GSE Worldwide | |
| Brandon Crawford | Cardinals | Wasserman | |
| Jonathon Crawford | Reds | Jet Sports Management | |
| J.P. Crawford | Mariners | Wasserman | Len Strelitz |
| Joe Crede | Rockies | Boras Corporation | |
| Stefan Crichton | Diamondbacks | Paragon Sports International | |
| Kyle Crick | Mets | BBI Sports Group | |
| Coco Crisp | Indians | Steve Comte | |
| C.J. Cron | Red Sox | Moye Sports Associates | |
| Jake Cronenworth | Padres | CAA Sports | |
| Declan Cronin | Marlins | Gaeta Sports Management | |
| Bobby Crosby | Brewers | TWC Sports | |
| Casey Crosby | Dodgers | Octagon | |
| Michael Crotta | Tigers | Munsey Sports Management | |
| Aaron Crow | Cubs | Excel Sports Management | |
| Trevor Crowe | Astros | All Bases Covered | |
| Luis Cruz | Yankees | John Boggs & Associates | |
| Nelson Cruz | Twins | Bryce Dixon | |
| Rhiner Cruz | Blue Jays | ACES | |
| Tony Cruz | Reds | MDR Sports Management | |
| Michael Cuddyer | Mets | Excel Sports Management | Casey Close |
| Johnny Cueto | Angels | Bryce Dixon | |
| William Cuevas | Dodgers | Z-Axis Sports | |
| Charlie Culberson | Braves | Ballengee Group | |
| Brandon Cunniff | Marlins | Paragon Sports International | |
| Todd Cunningham | White Sox | Excel Sports Management | |
| Joey Curletta | Red Sox | Lagardere Sports | |
| Michael Curry | Padres | Vanguard Sports Group | |
| Colin Curtis | Yankees | Boras Corporation | |
| Jack Cust | Orioles | Excel Sports Management | Bobby Barad |
| Cheslor Cuthbert | Mets | ISE Baseball | |
| Chase D'Arnaud | Royals | Wasserman | |
| Travis D'Arnaud | Braves | Wasserman | |
| Bobby Dalbec | Red Sox | CAA Sports | |
| Johnny Damon | Indians | Boras Corporation | |
| Tyler Danish | Rockies | O'Connell Sports Management | |
| Jordan Danks | Rangers | CAA Sports | |
| John Danks | Braves | CAA Sports | Jeff Berry |
| Logan Darnell | Nationals | ISE Baseball | |
| Wes Darvill | Cubs | Only Baseball Players | Mike Mosa |
| Yu Darvish | Padres | Wasserman | |
| Matt Davidson | MVP Sports Group | ||
| Tucker Davidson | Orioles | SSG Baseball | |
| Zach Davies | Royals | Boras Corporation | |
| Kyle Davies | Yankees | CSE | |
| Chris Davis | Orioles | Boras Corporation | |
| Doug Davis | Royals | Steve Canter Pro Edge Sports | |
| Ike Davis | Dodgers | Octagon | |
| Rajai Davis | Mets | GSE Worldwide | |
| Wade Davis | Royals | Jet Sports Management | |
| Khris Davis | Athletics | Octagon | |
| Rookie Davis | Pirates | Full Circle Sports Management | |
| Austin Davis | Padres | KHG Sports Management | |
| J.D. Davis | Orioles | ALIGND Sports Agency | |
| Erik Davis | Brewers | Excel Sports Management | |
| Grant Dayton | Angels | KVA Sports | |
| Yonathan Daza | Rockies | Munger English Sports Management | |
| Alejandro de Aza | Twins | Magnus Sports | |
| Justin De Fratus | Dodgers | Wasserman | |
| Ivan de Jesus | Red Sox | MDR Sports Management | |
| Michael De La Cruz | Blue Jays | Z-Axis Sports | |
| Kelvin De La Cruz | Indians | Elite Sports Group | |
| Jorge de la Rosa | Rockies | TWC Sports | |
| Wilkin De La Rosa | Reds | O'Connell Sports Management | |
| Rubby De La Rosa | Dodgers | Wasserman | Andy Mota |
| Dane De La Rosa | Orioles | Full Circle Sports Management | |
| Jose De Leon | Twins | Boras Corporation | |
| Frank De Los Santos | White Sox | MDR Sports Management | |
| Fautino De Los Santos | Padres | ACES | |
| Yerry De Los Santos | Yankees | Epitome Sports Management | |
| Cole De Vries | Twins | Beverly Hills Sports Council | |
| Jaff Decker | Nationals | O'Connell Sports Management | |
| Samuel Deduno | Twins | Rep 1 Baseball | |
| Justin DeFratus | Phillies | Wasserman | |
| Jeff Degano | Yankees | Wasserman | |
| Jacob deGrom | Rangers | VC Sports Group | |
| David DeJesus | Angels | ACES | |
| Paul DeJong | Royals | C.L. Rocks Corporation | |
| Enerio Del Rosario | Astros | Para Sports & Entertainment Group, LLC | |
| Steve Delabar | Rangers | Meister Sports Management | |
| Rob Delaney | Angels | The L. Warner Companies, Inc. | |
| Manny Delcarmen | Nationals | Jim Masteralexis | |
| Randall Delgado | White Sox | MVP Sports Group | |
| Sam Demel | Yankees | Beverly Hills Sports Council | |
| Travis Demeritte | Braves | ACES | |
| Joey DeMichele | White Sox | Lagardere Sports | |
| Ryan Dempster | Red Sox | Landis Baseball Group | |
| Matt den Dekker | Mets | ISE Baseball | |
| Mason Denaburg | Nationals | Boras Corporation | |
| Ryan Dennick | Dodgers | Pro Star Management, Inc. | |
| Chris Denorfia | Rockies | Pro Star Management, Inc. | |
| Chris Denove | Reds | Jim McDowell | |
| Matt Dermody | Red Sox | KVA Sports | |
| Mark DeRosa | Blue Jays | CSE | |
| Matt DeRosier | Nationals | Pro Star Management, Inc. | |
| Daniel Descalso | Twins | Steve Canter Pro Edge Sports | |
| Anthony DeSclafani | Twins | VC Sports Group | |
| Delino DeShields Jr. | Mariners | Wasserman | |
| Ian Desmond | Rockies | CAA Sports | |
| Odrisamer Despaigne | White Sox | Movement Management Group | |
| Ross Detwiler | Reds | CAA Sports | Jeff Berry |
| Chris Devenski | Mariners | ALIGND Sports Agency | |
| Rafael Devers | Red Sox | Rep 1 Baseball | Nelson Montes de Oca |
| Blake DeWitt | Cubs | Turner Gary Sports | |
| Thomas Diamond | Twins | Reynolds Sports Management | |
| Scott Diamond | Blue Jays | Paragon Sports International | |
| Aledmys Diaz | Astros | Jaime Torres | |
| Jumbo Diaz | Marlins | The MAS+ Agency | |
| Jairo Diaz | Rockies | ISE Baseball | |
| Elias Diaz | Padres | The MAS+ Agency | |
| Edwin Diaz | Mets | Rep 1 Baseball | |
| Dayan Diaz | Angels | A1 Performance Group | |
| Yennsy Diaz | Mets | Magnus Sports | |
| Matt Diaz | Marlins | Reynolds Sports Management | |
| Robinzon Diaz | Brewers | Proformance | |
| Chris Dickerson | Orioles | MVP Sports Group | |
| Corey Dickerson | Nationals | Excel Sports Management | |
| R.A. Dickey | Braves | Bo McKinnis | |
| Brandon Dickson | Cardinals | Platinum Sports | |
| Cody Dickson | Pirates | Platinum Sports | |
| Jake Diekman | Mets | Beverly Hills Sports Council | |
| Derek Dietrich | Yankees | All Bases Covered | |
| Tim Dillard | Rangers | Icon Sports Management | |
| Nick Dini | Rays | Ballengee Group | |
| Brian Dinkelman | Twins | Platinum Sports | |
| Andy Dirks | Blue Jays | Frontline | |
| Brandon Dixon | Padres | ISE Baseball | |
| Greg Dobbs | Nationals | Beverly Hills Sports Council | |
| Randy Dobnak | Twins | Gaeta Sports Management | |
| Zack Dodson | Pirates | CAA Sports | Peter Vescovo |
| Rafael Dolis | White Sox | Moye Sports Associates | Bill Rose |
| Matt Dominguez | Paragon Sports International | ||
| Jasson Dominguez | Yankees | CAA Sports | |
| Jason Donald | Rangers | Boras Corporation | |
| Josh Donaldson | Brewers | MVP Sports Group | |
| Brendan Donnelly | Octagon | ||
| Sean Doolittle | Nationals | Jason Cook | |
| Brian Dopirak | Blue Jays | ISE Baseball | |
| Danny Dorn | Blue Jays | Ballplayers Agency | |
| Octavio Dotel | Tigers | Beverly Hills Sports Council | |
| Felix Doubront | Athletics | ACES | |
| Brandon Douglas | Tigers | Jim McDowell | |
| Scott Downs | Indians | CAA Sports | Greg Landry |
| Jeter Downs | Yankees | MVP Sports Group | |
| Tommy Doyle | Braves | Total Sports | |
| Terry Doyle | Orioles | True Gravity Baseball | |
| Brian Dozier | Mets | All Bases Covered | |
| Hunter Dozier | Angels | The L. Warner Companies, Inc. | |
| Kyle Drabek | Giants | ISE Baseball | |
| Oliver Drake | Rays | The L. Warner Companies, Inc. | |
| J.D. Drew | Red Sox | Boras Corporation | |
| Stephen Drew | Nationals | Boras Corporation | |
| Brandon Drury | Angels | Wasserman | |
| Mauricio Dubon | Astros | ALIGND Sports Agency | |
| Justin Duchscherer | Orioles | All Bases Covered | |
| Lucas Duda | Braves | Beverly Hills Sports Council | |
| Brian Duensing | Cubs | GSE Worldwide | |
| Cole Duensing | Angels | Vanguard Sports Group | |
| Jonas Dufek | Astros | Platinum Sports | |
| Tyler Duffey | Royals | Ballengee Group | |
| Danny Duffy | Rangers | ACES | |
| Matt Duffy | Rangers | TWC Sports | |
| Steven Duggar | Dodgers | ISE Baseball | |
| Zach Duke | Reds | ISE Baseball | |
| Ryan Dull | Mariners | Primetime Sports Group | |
| Shelley Duncan | Reds | Meister Sports Management | |
| Adam Dunn | Athletics | GSE Worldwide | |
| Michael Dunn | Rockies | O'Connell Sports Management | |
| Justin Dunn | Reds | CAA Sports | |
| Dane Dunning | Rangers | Jet Sports Management | |
| Jake Dunning | White Sox | Paragon Sports International | |
| Jon Duplantier | Dodgers | SSG Baseball | |
| Montana DuRapau | Athletics | Primetime Sports Group | |
| Chad Durbin | Phillies | All Bases Covered | |
| Adam Duvall | Braves | CAA Sports | |
| Chris Dwyer | Orioles | Jack Toffey | |
| Sam Dyson | Twins | ISE Baseball | |
| Jarrod Dyson | Blue Jays | ACES | |
| Nate Eaton | Royals | Gaeta Sports Management | |
| Adam Eaton | Angels | Diamond Sports Management | Adam Hubble |
| David Eckstein | Sports One Athlete Management | ||
| Josh Edgin | Nationals | McGinn Sports Agency | |
| Steve Edlefsen | Giants | John Boggs & Associates | |
| Tommy Edman | Dodgers | Jonathan Weisz | |
| Jim Edmonds | Cardinals | TWC Sports | |
| Xavier Edwards | Marlins | Reynolds Sports Management | |
| Carl Edwards Jr. | Padres | Ballengee Group | |
| Pat Egan | Brewers | The L. Warner Companies, Inc. | |
| Brett Eibner | Marlins | Ballengee Group | |
| Jerad Eickhoff | Indians | GSE Worldwide | |
| Johnny Eierman | Rays | Players Edge Sports Management | |
| Mike Ekstrom | Athletics | Beverly Hills Sports Council | |
| Josh Elander | Diamondbacks | CAA Sports | Gavin Wright |
| Scott Elbert | Padres | Turner Gary Sports | |
| Roenis Elias | Cubs | MDR Sports Management | |
| Seth Elledge | Athletics | SSG Baseball | |
| Brian Ellington | Mariners | MVP Sports Group | |
| Chris Ellis | Diamondbacks | CAA Sports | |
| A.J. Ellis | Padres | ACES | |
| Mark Ellis | Cardinals | TWC Sports | |
| Jacoby Ellsbury | Yankees | Boras Corporation | |
| John Ely | Brewers | Matt Colleran | |
| Brad Emaus | Mets | ACES | |
| Edwin Encarnacion | White Sox | Rep 1 Baseball | |
| Tanner English | Twins | Beverly Hills Sports Council | |
| Blayne Enlow | Twins | Wasserman | |
| Barry Enright | Diamondbacks | James A. Kuzmich, PLLC | |
| Nate Eovaldi | Rangers | ACES | |
| Tyler Eppler | Nationals | Platinum Sports | |
| Cody Eppley | Twins | Paragon Sports International | |
| Brandon Erbe | Phillies | Shapiro, Robinson, & Associates | |
| Robbie Erlin | Dodgers | Apex Baseball | |
| Phillip Ervin | Braves | Moye Sports Associates | |
| Edgmer Escalona | Giants | Magnus Sports | |
| Sergio Escalona | Astros | ACES | |
| Alcides Escobar | Nationals | GSE Worldwide | |
| Kelvim Escobar | Brewers | GSE Worldwide | |
| Yunel Escobar | Angels | Miami Sports Management | |
| Eduardo Escobar | Blue Jays | DJ Rengifo Y Associates LLC | |
| Edwin Escobar | Cubs | TLA Worldwide | |
| Santiago Espinal | Reds | MVP Sports Group | |
| Danny Espinosa | Mets | MVP Sports Group | |
| Anderson Espinoza | Padres | Beverly Hills Sports Council | |
| Thairo Estrada | Giants | MVP Sports Group | |
| Marco Estrada | Athletics | TWC Sports | |
| Andre Ethier | Dodgers | CAA Sports | Nez Balelo |
| Nick Evans | Diamondbacks | True Gravity Baseball | |
| Phillip Evans | Braves | CAA Sports | |
| Dana Eveland | Rays | PSI Sports Management | |
| Adam Everett | Tigers | CSE | |
| Luis Exposito | Orioles | Wasserman | |
| Alex Faedo | Tigers | ISE Baseball | |
| Jeurys Familia | Athletics | ACES | |
| Kyle Farmer | Twins | Beverly Hills Sports Council | |
| Kyle Farnsworth | Astros | Meister Sports Management | |
| Danny Farquhar | Yankees | The Sparta Group | |
| Eric Farris | Twins | Orpheus Sports | Joe Rosen |
| Taylor Featherston | Royals | CAA Sports | Peter Vescovo |
| Tim Federowicz | Dodgers | ISE Baseball | |
| Ryan Feierabend | Blue Jays | McNamara Baseball Group | |
| Scott Feldman | Blue Jays | Pro Prospects, Inc. | Matt Brown |
| Pedro Feliciano | Cubs | MDR Sports Management | |
| Neftali Feliz | Dodgers | Optimum Baseball Associates | |
| Pedro Feliz | Padres | ACES | |
| Michael Feliz | Yankees | Rep 1 Baseball | Nelson Montes de Oca |
| Ryan Feltner | Rockies | Pro Star Management, Inc. | |
| Chuckie Fick | Astros | PSI Sports Management | |
| Tommy Field | Tigers | BASH Baseball | |
| Johnny Field | Cubs | SSG Baseball | |
| Prince Fielder | Rangers | Boras Corporation | |
| Josh Fields | Rangers | Boras Corporation | |
| Daniel Fields | White Sox | Reynolds Sports Management | |
| Casey Fien | Phillies | Wasserman | Joel Wolfe |
| Michael Fiers | Athletics | BASH Baseball | |
| Stephen Fife | Indians | Wasserman | |
| Chone Figgins | Dodgers | ACES | |
| Luis Figueroa | Mets | C.L. Rocks Corporation | |
| Nelson Figueroa | Diamondbacks | ACES | |
| Eric Filia | Red Sox | Rosenhaus Sports Representation | |
| Kyle Finnegan | Nationals | The L. Warner Companies, Inc. | |
| Robert Fish | Royals | Lagardere Sports | Kevin Hubbard |
| Doug Fister | Rangers | PSI Sports Management | |
| Jack Flaherty | Dodgers | CAA Sports | |
| Ryan Flaherty | Indians | CAA Sports | Jeff Berry |
| Josh Fleming | Mariners | Republik Sports | |
| David Fletcher | Braves | Ballengee Group | |
| Jesus Flores | Marlins | Magnus Sports | |
| Jose Flores | Giants | GSI | |
| Randy Flores | Brewers | CAA Sports | |
| Wilmer Flores | Giants | McNamara Baseball Group | |
| Pedro Florimon | Braves | El Juego Sports Management | |
| Tyler Flowers | Braves | O'Connell Sports Management | |
| Gavin Floyd | Blue Jays | Moye Sports Associates | |
| Brian Flynn | Rangers | Sports Pro Services | Danny Burgers |
| Michael Foltynewicz | Rangers | Excel Sports Management | |
| Wilmer Font | Padres | OL Baseball Group LLC | |
| Mike Fontenot | Rays | Paragon Sports International | |
| Tiquan Forbes | White Sox | Jet Sports Management | |
| Lew Ford | Orioles | Lagardere Sports | |
| Eric Fornataro | Nationals | Team One Management | |
| Logan Forsythe | Brewers | PSI Sports Management | |
| Dexter Fowler | Blue Jays | Excel Sports Management | |
| Matt Fox | Mets | Taurus Sports Associates | David M. Sloane |
| Ty France | Reds | Reynolds Sports Management | |
| Jeff Francis | Yankees | Frontline | |
| Ben Francisco | Diamondbacks | John Boggs & Associates | |
| Frank Francisco | White Sox | Magnus Sports | |
| Juan Francisco | Orioles | ISE Baseball | |
| Maikel Franco | Mato Sports Management | ||
| Jeff Francoeur | Marlins | Vanguard Sports Group | |
| Kevin Frandsen | Giants | All Bases Covered | |
| Ryan Franklin | Cardinals | BBI Sports Group | |
| Nick Franklin | Pirates | Boras Corporation | |
| Seth Frankoff | Diamondbacks | Vanguard Sports Group | |
| Jason Frasor | Braves | Dave Meier | |
| Adam Frazier | Padres | Bo McKinnis | |
| Adam Frazier | Royals | Bo McKinnis | |
| Clint Frazier | Cubs | ACES | |
| Todd Frazier | Pirates | CAA Sports | |
| Kyle Freeland | Rockies | MSM Sports | |
| Sam Freeman | Royals | Reynolds Sports Management | |
| Justin Freeman | Reds | Beverly Hills Sports Council | |
| Mike Freeman | Reds | BASH Baseball | |
| Freddie Freeman | Braves | Excel Sports Management | |
| David Freese | Dodgers | CAA Sports | Nez Balelo |
| David Freitas | Dodgers | PSI Sports Management | |
| Luke French | Twins | Frye McCann Sports | |
| Carlos Frias | Indians | Rep 1 Baseball | |
| Max Fried | Braves | CAA Sports | |
| Christian Friedrich | White Sox | Frontline | |
| Ernesto Frieri | Brewers | Matt Colleran | |
| Paul Fry | Blue Jays | Wasserman | |
| Jace Fry | Tigers | Northwest Sports Management Group | |
| Eric Fryer | Phillies | Sterling Sports Management | |
| Balbino Fuenmayor | Nationals | True Gravity Baseball | |
| Reymond Fuentes | Diamondbacks | MDR Sports Management | |
| Brian Fuentes | Athletics | Beverly Hills Sports Council | |
| Kyuji Fujikawa | Rangers | Wasserman | |
| Kosuke Fukudome | Yankees | Octagon | |
| Kazuo Fukumori | Octagon | ||
| Sam Fuld | Athletics | Excel Sports Management | |
| Michael Fulmer | Red Sox | BBI Sports Group | |
| Charlie Furbush | Mariners | ISE Baseball | |
| Rafael Furcal | Royals | Rep 1 Baseball | |
| Armando Gabino | Elite Sports Group | ||
| Eric Gagne | Red Sox | All Bases Covered | |
| Drew Gagnon | Mets | ISE Baseball | |
| Frank Gailey | Orioles | Ballplayers Agency | |
| Preston Gainey | Brewers | Taurus Sports Associates | |
| Armando Galarraga | Rockies | SPS Sports Group | |
| Sean Gallagher | Rockies | ISE Baseball | |
| Yovani Gallardo | Rangers | Octagon | |
| Joey Gallo | Nationals | Boras Corporation | |
| Freddy Galvis | Phillies | Rep 1 Baseball | |
| Ben Gamel | Astros | Jet Sports Management | |
| Victor Garate | Marlins | SPS Sports Group | |
| Freddy Garcia | Dodgers | Magnus Sports | |
| Jaime Garcia | Cubs | Moye Sports Associates | |
| Yimi Garcia | Mariners | Ballplayers Agency | |
| Willy Garcia | White Sox | Ballplayers Agency | |
| Rico Garcia | Nationals | Gaeta Sports Management | |
| Avisail Garcia | Marlins | Mato Sports Management | |
| Adonis Garcia | Braves | Rep 1 Baseball | |
| Luis Garcia | Tigers | Topline Sports & Entertainment, LLC | Luis Garcia |
| Leury Garcia | Braves | Rep 1 Baseball | |
| Onelki Garcia | Royals | Beverly Hills Sports Council | |
| Greg Garcia | Phillies | Pro Star Management, Inc. | |
| Jason Garcia | Rays | SSG Baseball | |
| Brett Gardner | Yankees | Pro Star Management, Inc. | |
| Tanner Gardner | Rangers | SSG Baseball | |
| Jon Garland | Rockies | Landis Baseball Group | |
| Dustin Garneau | Tigers | Marc Kligman | |
| Cole Garner | Blue Jays | Ballplayers Agency | |
| Stone Garrett | Nationals | Reynolds Sports Management | |
| Amir Garrett | Angels | Boras Corporation | |
| Steve Garrison | Mariners | Meister Sports Management | |
| Mitch Garver | Mariners | ISE Baseball | |
| Grayson Garvin | Rays | Moye Sports Associates | |
| Matt Garza | Brewers | CAA Sports | Nez Balelo |
| John Gast | Cardinals | Sports One Athlete Management | |
| Joey Gathright | Reds | Reynolds Sports Management | |
| Evan Gattis | Astros | GSE Worldwide | |
| Joe Gatto | Phillies | Ballengee Group | |
| John Gaub | Cardinals | Hendricks Sports | |
| Chad Gaudin | Dodgers | Reynolds Sports Management | |
| Kevin Gausman | Blue Jays | Klutch Sports | |
| Sam Gaviglio | Dodgers | KVA Sports | |
| Jared Gayhart | Tigers | CAA Sports | Peter Vescovo |
| Cory Gearrin | Twins | Bo McKinnis | |
| Dillon Gee | Twins | SSG Baseball | NPB: Chunichi Dragons (2018) |
| Steven Geltz | Phillies | Big League Management Company, LLC | Brian Charles |
| Scooter Gennett | Giants | ISE Baseball | |
| Craig Gentry | Rockies | BASH Baseball | |
| Domingo German | Pirates | Ballplayers Agency | |
| Justin Germano | Mariners | Beverly Hills Sports Council | |
| Jody Gerut | Mariners | Landis Baseball Group | |
| Chris Getz | Blue Jays | ISE Baseball | |
| Jason Giambi | Indians | Wasserman | |
| Johnny Giavotella | White Sox | Meister Sports Management | |
| Jay Gibbons | Dodgers | Bo McKinnis | |
| Kyle Gibson | Cardinals | Rowley Sports Management | |
| Mateo Gil | Rockies | MSM Sports | |
| Ken Giles | Braves | Rowley Sports Management | |
| Conor Gillaspie | Giants | Hendricks Sports | |
| Cole Gillespie | Marlins | CAA Sports | Joe Urbon |
| Tyson Gillies | Padres | Reynolds Sports Management | |
| Sean Gilmartin | Twins | Sports One Athlete Management | |
| Caleb Gindl | White Sox | Reynolds Sports Management | |
| Kevin Ginkel | Diamondbacks | Ballengee Group | |
| Lucas Giolito | Red Sox | CAA Sports | |
| Mychal Givens | Marlins | Excel Sports Management | |
| Todd Glaesmann | Diamondbacks | CAA Sports | Gavin Wright |
| Tyler Glasnow | Dodgers | Wasserman | |
| Troy Glaus | The Sparta Group | ||
| Ross Gload | Phillies | ACES | |
| Zack Godley | Athletics | Sports Pro Services | Danny Burgers |
| Erik Goeddel | Dodgers | Apex Baseball | |
| Tyler Goeddel | Nationals | Apex Baseball | |
| Grandon Goetzman | Rays | Jet Sports Management | |
| Ryan Goins | Royals | Octagon | |
| Paul Goldschmidt | Cardinals | Excel Sports Management | |
| Austin Gomber | Rockies | Jet Sports Management | |
| Yan Gomes | Cubs | Jet Sports Management | |
| Jonny Gomes | Royals | MVP Sports Group | |
| Brandon Gomes | Cubs | ISE Baseball | |
| Jeanmar Gomez | Rangers | The MAS+ Agency | |
| Carlos Gomez | Mets | MVP Sports Group | |
| Stephen Gonsalves | Rockies | John Boggs & Associates | |
| Tony Gonsolin | Dodgers | Beverly Hills Sports Council | |
| Marco Gonzales | Pirates | CAA Sports | |
| Marwin Gonzalez | MVP Sports Group | ||
| Miguel Gonzalez | White Sox | Sports Pro Services | John Lackner |
| Alex Gonzalez | Tigers | Arland Sports | |
| Miguel Gonzalez | Tigers | Rep 1 Baseball | |
| Chi Chi Gonzalez | Marlins | Arland Sports | |
| Severino Gonzalez | Marlins | GSE Worldwide | |
| Gabe Gonzalez | Diamondbacks | SSG Baseball | |
| Adrian Gonzalez | Mets | John Boggs & Associates | |
| Alex Gonzalez | Brewers | Eric Goldschmidt | |
| Alberto Gonzalez | Tigers | Boras Corporation | |
| Carlos Gonzalez | Mariners | Boras Corporation | |
| Edgar Gonzalez | Astros | Oscar Suarez | |
| Gio Gonzalez | Marlins | CAA Sports | |
| Mike Gonzalez | Nationals | MVP Sports Group | |
| Niko Goodrum | Orioles | Reynolds Sports Management | |
| Brian Goodwin | White Sox | MVP Sports Group | |
| Dee Gordon | Mariners | Rep 1 Baseball | Nate Heisler |
| Alex Gordon | Royals | Excel Sports Management | Casey Close |
| Brian Gordon | Athletics | CSMG Sports | David Schwartz |
| Nick Gordon | Marlins | Beverly Hills Sports Council | |
| Terrance Gore | Braves | The L. Warner Companies, Inc. | |
| MacKenzie Gore | Nationals | Boras Corporation | |
| Darin Gorski | Mets | MVP Sports Group | |
| Tom Gorzelanny | Mets | ISE Baseball | |
| Anthony Gose | Indians | CAA Sports | |
| Tuffy Gosewisch | Brewers | ACES | |
| Philip Gosselin | Angels | Meister Sports Management | |
| Daniel Gossett | Twins | Ballengee Group | |
| Ruben Gotay | Braves | MDR Sports Management | |
| Trevor Gott | Athletics | Sports One Athlete Management | |
| John Grabow | Dodgers | Wasserman | |
| Matt Grace | Nationals | Wasserman | |
| Yasmani Grandal | Pirates | GSE Worldwide | |
| Curtis Granderson | Marlins | Pro Prospects, Inc. | Matt Brown |
| Zack Granite | White Sox | Full Circle Sports Management | |
| Juan Graterol | Diamondbacks | ISE Baseball | |
| Brusdar Graterol | Dodgers | Boras Corporation | |
| Kendall Graveman | Astros | Sports One Athlete Management | |
| Brett Graves | Marlins | Platinum Sports | |
| Jonathan Gray | Rangers | CAA Sports | |
| Tristan Gray | Athletics | SSG Baseball | |
| Sonny Gray | Cardinals | Bo McKinnis | |
| Ryder Greeen | Yankees | Jet Sports Management | |
| Chad Green | Blue Jays | Frontline | Darek Braunecker |
| Grant Green | Marlins | Boras Corporation | |
| Taylor Green | Brewers | Double Diamond Sports Management | |
| Nick Green | Marlins | O'Connell Sports Management | |
| Sean Green | Rangers | Diamond Sports Management | |
| Khalil Greene | ISE Baseball | ||
| Tyler Greene | Phillies | Boras Corporation | |
| Shane Greene | Rangers | Turner Gary Sports | Rex Gary |
| Riley Greene | Tigers | Apex Baseball | |
| Hunter Greene | Reds | CAA Sports | |
| Larry Greene | Phillies | ACES | |
| Nick Greenwood | Twins | Germani Sports Management | |
| Luke Gregerson | Cardinals | O'Connell Sports Management | |
| Kevin Gregg | Mariners | Beverly Hills Sports Council | |
| Conrad Gregor | Astros | CAA Sports | |
| Didi Gregorius | Mariners | Excel Sports Management | |
| Zack Greinke | Royals | Excel Sports Management | |
| Randal Grichuk | Diamondbacks | Excel Sports Management | |
| A.J. Griffin | Mets | GSE Worldwide | |
| Foster Griffin | Blue Jays | Excel Sports Management | |
| Jason Grilli | Rangers | Gary Sheffield | |
| Justin Grimm | Athletics | The Bledsoe Agency | |
| Trent Grisham | Yankees | ISE Baseball | |
| Jason Groome | Red Sox | Ballengee Group | Jeff Randazzo |
| Gabe Gross | Marlins | Moye Sports Associates | |
| Robbie Grossman | Royals | Lagardere Sports | |
| Robert Gsellman | Nationals | CAA Sports | Nate Heisler |
| Reymin Guduan | Dodgers | The L. Warner Companies, Inc. | |
| Deolis Guerra | Athletics | GSE Worldwide | |
| Javy Guerra | Rays | Reynolds Sports Management | |
| Gabriel Guerrero | Marlins | Octagon | Brian Mejia |
| Alexander Guerrero | Dodgers | Boras Corporation | |
| Tayron Guerrero | Angels | TLA Worldwide | |
| Vladimir Guerrero Jr. | Blue Jays | Magnus Sports | Nelson Montes de Oca |
| Matt Guerrier | Twins | Pro Star Management, Inc. | |
| Taylor Guerrieri | Mariners | GSE Worldwide | |
| Taylor Guilbeau | Diamondbacks | PSI Sports Management | |
| Carlos Guillen | Mariners | Octagon | Wil Polidor |
| Jose Guillen | Wasserman | ||
| Luis Guillorme | Diamondbacks | MVP Sports Group | |
| Angelo Gumbs | Yankees | Rich Davis | |
| Yulieski Gurriel | Royals | Wasserman | |
| Lourdes Gurriel | Diamondbacks | Magnus Sports | |
| Jeremy Guthrie | Nationals | Excel Sports Management | |
| Franklin Gutierrez | Dodgers | Octagon | |
| Juan Gutierrez | Nationals | Godoy Sports | |
| Vladimir Gutierrez | Red Sox | Octagon | |
| Brandon Guyer | Giants | ACES | |
| Ronald Guzman | Orioles | Boras Corporation | |
| Angel Guzman | Dodgers | Octagon | |
| Cristian Guzman | Indians | Stanley King | |
| Jesus Guzman | Cubs | Octagon | |
| Joel Guzman | InnerArtists Management | ||
| Tony Gwynn | Nationals | John Boggs & Associates | |
| Jedd Gyorko | Brewers | ACES | |
| Eric Haase | Brewers | The L. Warner Companies, Inc. | |
| Charlie Haeger | Red Sox | John Boggs & Associates | |
| Travis Hafner | Yankees | GSE Worldwide | |
| Nick Hagadone | Mariners | CAA Sports | Joe Urbon |
| Jake Hager | Cubs | Paragon Sports International | |
| Matt Hague | Nationals | Beverly Hills Sports Council | |
| Jesse Hahn | Mariners | Excel Sports Management | |
| Jerry Hairston | Dodgers | Excel Sports Management | Casey Close |
| Scott Hairston | White Sox | Excel Sports Management | Casey Close |
| Devin Hairston | Brewers | MSM Sports | |
| David Hale | Phillies | Jon Fetterolf | |
| Trey Haley | Pirates | ISE Baseball | |
| Justin Haley | Giants | PSI Sports Management | |
| Bill Hall | Angels | Lagardere Sports | |
| Roy Halladay | Blue Jays | CAA Sports | Greg Landry |
| Mark Hamburger | Twins | Pro Agents, Inc. | Billy Martin, Jr. |
| Cole Hamels | Padres | John Boggs & Associates | |
| Josh Hamilton | Rangers | Moye Sports Associates | |
| Ian Hamilton | Yankees | Northwest Sports Management Group | |
| Billy Hamilton | Twins | Wasserman | |
| Mark Hamilton | Red Sox | Boras Corporation | |
| Jason Hammel | Rangers | ACES | |
| J.D. Hammer | Rockies | Magnus Sports | |
| Mike Hampton | Diamondbacks | Frontline | |
| Erik Hamren | Padres | KVA Sports | |
| Justin Hancock | Cubs | KHG Sports Management | |
| Brad Hand | Braves | Jet Sports Management | |
| Ryan Hanigan | Giants | O'Connell Sports Management | |
| Mitch Haniger | Mariners | Apex Baseball | |
| Todd Hankins | Indians | C.L. Rocks Corporation | |
| Jack Hannahan | Reds | Sterling Sports Management | |
| Joel Hanrahan | Tigers | Reynolds Sports Management | |
| Alen Hanson | Mariners | L.A. Sports Management | |
| J.A. Happ | Cardinals | Rogers Sports Management, LLC | |
| Ian Happ | Cubs | Excel Sports Management | |
| Aaron Harang | Phillies | ACES | |
| Rich Harden | Twins | Wasserman | |
| J.J. Hardy | Orioles | Lagardere Sports | |
| Blaine Hardy | Brewers | Only Baseball Players | Mike Mosa |
| Dan Haren | Cubs | CAA Sports | Greg Landry |
| Bryce Harper | Phillies | Boras Corporation | |
| Lucas Harrell | Blue Jays | Frontline | |
| Brendan Harris | Tigers | BASH Baseball | |
| Willie Harris | Diamondbacks | Paragon Sports International | |
| Mitch Harris | Cardinals | The L. Warner Companies, Inc. | |
| Will Harris | Nationals | Gavin Kahn | |
| Jon Harris | Blue Jays | Arland Sports | |
| Matt Harrison | Phillies | ACES | |
| Josh Harrison | Reds | MSM Sports | |
| Travis Harrison | Twins | GSE Worldwide | |
| Monte Harrison | Brewers | MVP Sports Group | |
| Donnie Hart | Athletics | Frontline | |
| Corey Hart | Pirates | CAA Sports | Jeff Berry |
| Matt Harvey | Orioles | Boras Corporation | |
| Adam Haseley | White Sox | Frontline | |
| Chris Hatcher | Athletics | Turner Gary Sports | |
| Reese Havens | Mets | Myles Shoda | |
| Courtney Hawkins | CAA Sports | Peter Vescovo | |
| LaTroy Hawkins | Blue Jays | Reynolds Sports Management | |
| Blake Hawksworth | Dodgers | Boras Corporation | |
| Brad Hawpe | Angels | Beverly Hills Sports Council | |
| Brett Hayes | Rangers | TWC Sports | |
| Ke'Bryan Hayes | Pirates | Ballengee Group | |
| Drew Hayes | Reds | Beverly Hills Sports Council | |
| Austin Hays | Phillies | The MAS+ Agency | |
| Jeremy Hazelbaker | Twins | Pro Star Management, Inc. | |
| Chase Headley | Padres | Excel Sports Management | Jim Murray |
| Ryon Healy | Rays | Excel Sports Management | |
| Andrew Heaney | Rangers | Icon Sports Management | |
| Slade Heathcott | Athletics | Frontline | |
| Adeiny Hechavarria | Royals | Magnus Sports | |
| Kyle Heckathorn | Brewers | CSE | |
| Austin Hedges | Indians | Boras Corporation | |
| Jeremy Hefner | Cardinals | BBI Sports Group | |
| Aaron Heilman | Rangers | Frontline | |
| Jonah Heim | Rangers | Frye McCann Sports | |
| Chris Heisey | Twins | Apex Baseball | |
| Ben Heller | Pirates | Onyx Sports Management | |
| Jeremy Hellickson | Nationals | Boras Corporation | |
| John Hellweg | Pirates | CAA Sports | Jeff Berry |
| Wes Helms | Braves | CSE | |
| Todd Helton | Rockies | Moye Sports Associates | |
| Heath Hembree | Mariners | Ballengee Group | |
| Jim Henderson | Brewers | Adam Hubble | |
| Kyle Hendricks | Cubs | Wasserman | |
| Mark Hendrickson | Orioles | CAA Sports | |
| Liam Hendriks | Red Sox | ALIGND Sports Agency | |
| Paul Hendrix | Indians | SSG Baseball | |
| Sean Henn | Mets | CAA Sports | |
| Clay Hensley | Reds | All Bases Covered | |
| Tyler Henson | Dodgers | The Sparta Group | |
| Sam Hentges | Indians | ISE Baseball | |
| Guillermo Heredia | Braves | Magnus Sports | |
| Jeremy Hermida | Brewers | CSE | |
| B.J. Hermsen | Twins | Meister Sports Management | |
| Hector Hernandez | Padres | C.L. Rocks Corporation | |
| Cesar Hernandez | Nationals | Octagon | |
| Enrique Hernandez | Dodgers | Wasserman | |
| Marco Hernandez | White Sox | ISE Baseball | |
| Gorkys Hernandez | White Sox | SPS Sports Group | |
| Teoscar Hernandez | Dodgers | Republik Sports | |
| Elieser Hernandez | Brewers | Elite Sports Group | |
| Roberto Hernandez | Braves | DPX Sports | Charisse Dash |
| Anderson Hernandez | Pirates | GSE Worldwide | |
| David Hernandez | Indians | Jason Hoffman | |
| Diory Hernandez | Cubs | ISE Baseball | |
| Felix Hernandez | Orioles | Octagon | |
| Livan Hernandez | Brewers | Magnus Sports | |
| Luis Hernandez | Indians | Morgan Advisory Group | |
| Michel Hernandez | Indians | Only Baseball Players | Mike Mosa |
| Ramon Hernandez | Royals | Eric Goldschmidt | |
| David Herndon | Brewers | Double Diamond Sports Management | |
| Jonathan Herrera | Cubs | MDR Sports Management | |
| Kelvin Herrera | Cubs | Republik Sports | |
| Dilson Herrera | Orioles | The MAS+ Agency | |
| Elian Herrera | Dodgers | El Juego Sports Management | |
| Odubel Herrera | Phillies | Victor Tranquillo | |
| Rosell Herrera | Yankees | ISE Baseball | |
| Frank Herrmann | Phillies | Excel Sports Management | |
| Chris Herrmann | Red Sox | Sports Management Partners | |
| Keith Hessler | Rockies | Marc Kligman | |
| Mike Hessman | Tigers | Pro Star Management, Inc. | |
| Chris Heston | Giants | Marc Kligman | |
| Jason Heyward | Astros | Excel Sports Management | |
| Brandon Hicks | Dodgers | ISE Baseball | |
| Aaron Hicks | Angels | CAA Sports | |
| John Hicks | Phillies | Full Circle Sports Management | |
| Jordan Hicks | Giants | Ballengee Group | |
| Trevor Hildenberger | Giants | Ballengee Group | |
| Derek Hill | Marlins | Reynolds Sports Management | |
| Aaron Hill | Giants | GSE Worldwide | |
| Koyie Hill | Phillies | Turner Gary Sports | |
| Rich Hill | Padres | ACES | |
| Sam Hilliard | Rockies | Magnus Sports | |
| Dalier Hinojosa | Phillies | Magnus Sports | |
| Chad Hinshaw | Angels | Platinum Sports | |
| Eric Hinske | Diamondbacks | MVP Sports Group | |
| Yoshihisa Hirano | Mariners | John Boggs & Associates | |
| Keston Hiura | Angels | Klutch Sports | |
| Luke Hochevar | Royals | Boras Corporation | |
| Wes Hodges | Indians | CAA Sports | |
| Nico Hoerner | Cubs | Apex Baseball | |
| Jamie Hoffmann | Mets | Matt Colleran | |
| Bryan Holaday | Diamondbacks | Lagardere Sports | |
| Kyle Holder | Yankees | John Boggs & Associates | |
| Alex Holderbach | Astros | Pro Star Management, Inc. | |
| Derek Holland | Blue Jays | Martini Sports Management | |
| Greg Holland | Tigers | Boras Corporation | |
| Matt Holliday | Rockies | Boras Corporation | |
| David Holmberg | Rockies | Meister Sports Management | |
| Clay Holmes | Yankees | Jet Sports Management | |
| Brock Holt | Braves | Lagardere Sports | |
| Brent Honeywell | Dodgers | Jet Sports Management | |
| Destin Hood | Rangers | Reynolds Sports Management | |
| J.J. Hoover | Nationals | Vanguard Sports Group | |
| Jeremy Horst | Brewers | Onyx Sports Management | |
| Rhys Hoskins | Brewers | Boras Corporation | |
| Eric Hosmer | Cubs | Boras Corporation | |
| Tommy Hottovy | Rangers | Sports One Athlete Management | |
| Tanner Houck | Red Sox | CAA Sports | |
| Mason House | Padres | SSG Baseball | |
| T.J. House | White Sox | Beverly Hills Sports Council | |
| Adrian Houser | Orioles | Players Edge Sports Management | Brandon Mozley |
| Reilly Hovis | Marlins | Vanguard Sports Group | |
| Dillon Howard | Indians | Boras Corporation | |
| Ryan Howard | Rockies | Excel Sports Management | |
| J.P. Howell | Blue Jays | GSE Worldwide | |
| Bob Howry | Landis Baseball Group | ||
| Jared Hoying | Angels | Pro Star Management, Inc. | |
| Chin-lung Hu | Phillies | Octagon | |
| Daniel Hudson | Dodgers | Jet Sports Management | |
| Orlando Hudson | White Sox | GSE Worldwide | |
| Tim Hudson | Giants | TWC Sports | |
| Joe Hudson | Pirates | Meister Sports Management | |
| Kyrell Hudson | Phillies | Frontline | |
| Aubrey Huff | Ballengee Group | ||
| David Huff | Mariners | Jim McDowell | |
| Sam Huff | Rangers | Boras Corporation | |
| Chad Huffman | Tigers | SSG Baseball | |
| Dusty Hughes | Braves | Athletic Resource Management | |
| Luke Hughes | Athletics | Lagardere Sports | |
| Phil Hughes | Padres | CAA Sports | Nez Balelo |
| Jared Hughes | Astros | ISE Baseball | |
| Brandon Hughes | Diamondbacks | Wasserman | |
| Danny Hultzen | Cubs | CAA Sports | |
| Philip Humber | Padres | Moye Sports Associates | |
| Nick Hundley | Athletics | Athletes First | |
| Torii Hunter | Twins | Reynolds Sports Management | |
| Tommy Hunter | Mets | Moye Sports Associates | |
| Cedric Hunter | Indians | Jon Fetterolf | |
| Eric Hurley | Angels | Lagardere Sports | |
| Jason Hursh | Braves | ISE Baseball | |
| Drew Hutchison | Phillies | ACES | |
| Jae-gyun Hwang | GSI | ||
| Lee Hyde | Nationals | Diamond Sports Management | |
| Colt Hynes | Athletics | Frye McCann Sports | |
| Chris Iannetta | Yankees | Octagon | |
| Raul Ibanez | Royals | ACES | |
| Andy Ibanez | Tigers | ISE Baseball | |
| Ryota Igarashi | Yankees | Wasserman | |
| Jose Iglesias | Mets | MVP Sports Group | |
| Raisel Iglesias | Braves | Magnus Sports | |
| Ender Inciarte | Mets | Octagon | |
| Jonathan India | Reds | Meister Sports Management | |
| Gregory Infante | Orioles | Godoy Sports | |
| Omar Infante | Tigers | Mato Sports Management | |
| Brandon Inge | Pirates | ACES | |
| Joe Inglett | Astros | Lagardere Sports | |
| Cale Iorg | Orioles | Hendricks Sports | |
| Travis Ishikawa | Giants | Jim McDowell | |
| Jason Isringhausen | Angels | Beverly Hills Sports Council | |
| Andrew Istler | Nationals | C.L. Rocks Corporation | |
| Hisashi Iwakuma | Mariners | Wasserman | |
| Akinori Iwamura | Octagon | ||
| Cesar Izturis | Astros | GSE Worldwide | |
| Maicer Izturis | Blue Jays | GSE Worldwide | |
| Austin Jackson | Mets | Octagon | |
| Conor Jackson | White Sox | ISE Baseball | |
| Edwin Jackson | Diamondbacks | ESQ Agency | |
| Ryan Jackson | Nationals | CAA Sports | Gavin Wright |
| Steven Jackson | Pirates | ISE Baseball | |
| Zach Jackson | Nationals | Lagardere Sports | |
| Brett Jackson | Diamondbacks | CAA Sports | |
| Jay Jackson | Twins | GSI | |
| Luke Jackson | Braves | Beverly Hills Sports Council | |
| Zach Jackson | Blue Jays | SSG Baseball | |
| Mike Jacobs | Mariners | John Boggs & Associates | |
| Joe Jacques | Diamondbacks | Gaeta Sports Management | |
| Eric Jagielo | Marlins | Frontline | |
| Chris Jakubauskas | Blue Jays | Verrill Dana | David Abramson |
| Chuck James | Twins | Cencal Sports Management | |
| Chad James | Marlins | Icon Sports Management | |
| Josh James | Cardinals | CAA Sports | |
| Paul Janish | Orioles | Moye Sports Associates | |
| Danny Jansen | Red Sox | ISE Baseball | |
| Kenley Jansen | Red Sox | Wasserman | |
| Casey Janssen | Red Sox | ACES | |
| Jason Jaramillo | Brewers | ISE Baseball | |
| John Jaso | Pirates | ACES | |
| Cristian Javier | Astros | MVP Sports Group | |
| Tyler Jay | Brewers | All Bases Covered | |
| Jon Jay | Angels | CAA Sports | Nez Balelo |
| Ryan Jeffers | Twins | Ballengee Group | |
| Jeremy Jeffress | Nationals | Roc Nation Sports | |
| Chad Jenkins | Blue Jays | ACES | |
| Eric Jenkins | Rangers | Reynolds Sports Management | |
| Bobby Jenks | Red Sox | GSE Worldwide | |
| Dan Jennings | Nationals | ISE Baseball | |
| Desmond Jennings | Mets | Boras Corporation | |
| Kyle Jensen | Giants | Apex Baseball | |
| Kevin Jepsen | Rangers | Beverly Hills Sports Council | |
| Derek Jeter | Yankees | Excel Sports Management | Casey Close |
| Cesar Jimenez | Brewers | Godoy Sports | |
| Ubaldo Jimenez | Rockies | ISE Baseball | |
| Eloy Jimenez | Orioles | Rep 1 Baseball | Nelson Montes de Oca |
| Jorge Jimenez | Red Sox | MDR Sports Management | |
| Joe Jimenez | Braves | ISE Baseball | |
| Waldis Joaquin | Tigers | Godoy Sports | |
| Connor Joe | Pirates | John Boggs & Associates | |
| Jake Johansen | White Sox | SSG Baseball | |
| Kenji Johjima | Octagon | ||
| Brian Johnson | Angels | Jet Sports Management | |
| Chris Johnson | White Sox | Excel Sports Management | Jim Murray |
| Dan Johnson | Rays | Excel Sports Management | |
| Elliot Johnson | Dodgers | ACES | |
| Jim Johnson | Angels | Moye Sports Associates | |
| Josh Johnson | Giants | Apex Baseball | |
| Kelly Johnson | Mets | ISE Baseball | |
| Nick Johnson | Orioles | Turner Gary Sports | |
| Reed Johnson | Nationals | Wasserman | |
| Rob Johnson | Cardinals | Lagardere Sports | |
| Pierce Johnson | Braves | John Boggs & Associates | |
| DJ Johnson | Rays | Magnus Sports | |
| Kris Johnson | Twins | Apex Baseball | |
| Erik Johnson | Padres | Wasserman | Joel Wolfe |
| Adam Jones | Diamondbacks | CAA Sports | Nez Balelo |
| Andruw Jones | Yankees | Boras Corporation | |
| Chris Jones | Orioles | Reynolds Sports Management | |
| Chipper Jones | Braves | Jet Sports Management | |
| Garrett Jones | Yankees | ISE Baseball | |
| Hunter Jones | MSM Sports | ||
| Nate Jones | Dodgers | Sterling Sports Management | |
| Ryder Jones | Braves | GSE Worldwide | |
| Chuckie Jones | Giants | Platinum Sports | |
| Taylor Jordan | Nationals | MVP Sports Group | |
| Corban Joseph | Cubs | PSI Sports Management | |
| Donnie Joseph | Marlins | CAA Sports | Gavin Wright |
| Tommy Joseph | Red Sox | Jet Sports Management | |
| Caleb Joseph | Mariners | PSI Sports Management | |
| Matt Joyce | Phillies | ACES | |
| Aaron Judge | Yankees | PSI Sports Management | |
| Josh Judy | Mariners | Access Sports | |
| Taylor Jungmann | Rangers | Excel Sports Management | |
| Jake Junis | Reds | Frontline | |
| Jair Jurrjens | Dodgers | Boras Corporation | |
| Kila Ka'aihue | Diamondbacks | PSI Sports Management | |
| Tommy Kahnle | Yankees | Ballengee Group | |
| Ryan Kalish | Cubs | ISE Baseball | |
| Rob Kaminsky | Mariners | Excel Sports Management | |
| Jung-ho Kang | Pirates | Wasserman | |
| Gabe Kapler | Brewers | TWC Sports | |
| Nate Karns | Orioles | CAA Sports | |
| Jeff Karstens | Pirates | All Bases Covered | |
| Marshall Kasowski | Dodgers | MSM Sports | |
| Gosuke Katoh | John Boggs & Associates | ||
| Munenori Kawasaki | Cubs | ISE Baseball | |
| Scott Kazmir | Giants | GSE Worldwide | |
| Austin Kearns | Marlins | ISE Baseball | |
| Colt Keith | Tigers | Munger English Sports Management | |
| Keone Kela | Dodgers | Robert Fayne | |
| Jarred Kelenic | Braves | Klutch Sports | |
| Mitch Keller | Pirates | Excel Sports Management | |
| Trevor Kelley | Mariners | C.L. Rocks Corporation | |
| Shawn Kelley | Rangers | Frye McCann Sports | Mike McCann |
| Don Kelly | Marlins | Lagardere Sports | |
| Carson Kelly | Rangers | CAA Sports | |
| Joe Kelly | Red Sox | ACES | |
| Casey Kelly | Reds | ISE Baseball | |
| Michael Kelly | Athletics | CSE | |
| Jon Kemmer | Dodgers | KVA Sports | |
| Tony Kemp | Reds | Ballengee Group | |
| Matt Kemp | Rockies | Reynolds Sports Management | |
| Jason Kendall | Royals | Wasserman | |
| Howie Kendrick | Nationals | Reynolds Sports Management | |
| Kyle Kendrick | Red Sox | John Boggs & Associates | |
| Adam Kennedy | Nationals | TWC Sports | |
| Ian Kennedy | Rangers | Boras Corporation | |
| Brett Kennedy | Reds | ZS Sports | |
| Logan Kensing | Tigers | CAA Sports | |
| Max Kepler | Twins | Apex Baseball | |
| Jeff Keppinger | White Sox | CSE | |
| Clayton Kershaw | Dodgers | Excel Sports Management | |
| Dallas Keuchel | Brewers | Boras Corporation | |
| Mike Kickham | Red Sox | ISE Baseball | Steve Veltman |
| Carter Kieboom | Nationals | ACES | |
| Spencer Kieboom | Nationals | Vanguard Sports Group | |
| Dean Kiekhefer | Athletics | Pierce Sports and Entertainment | |
| Kevin Kiermaier | Dodgers | Reynolds Sports Management | |
| Roger Kieschnick | Angels | Hendricks Sports | |
| Yusei Kikuchi | Astros | Boras Corporation | |
| Kwang-Hyun Kim | Cardinals | John Boggs & Associates | |
| Jae-Hwan Kim | CAA Sports | ||
| Ha-Seong Kim | Padres | ISE Baseball | |
| Cole Kimball | Nationals | Pro Agents, Inc. | Dave Pepe |
| Craig Kimbrel | Orioles | SportsMeter | |
| Isiah Kiner-Falefa | Pirates | ALIGND Sports Agency | |
| Scott Kingery | Phillies | PSI Sports Management | |
| Tyler Kinley | Rockies | Paragon Sports International | |
| Josh Kinney | Mariners | ACES | |
| Ian Kinsler | Padres | BBI Sports Group | |
| Brandon Kintzler | Padres | Kevin Kohler | |
| Jason Kipnis | Braves | Beverly Hills Sports Council | |
| Alex Kirilloff | Twins | Boras Corporation | |
| Michael Kirkman | Braves | Sports One Athlete Management | |
| Andrew Kittredge | Cardinals | Paragon Sports International | |
| Patrick Kivlehan | White Sox | Pro Agents, Inc. | |
| Brock Kjeldgaard | Brewers | John Shinn | |
| Dex Kjerstad | Marlins | SSG Baseball | |
| Corey Kluber | Red Sox | Jet Sports Management | |
| Jason Knapp | Indians | GSE Worldwide | |
| Andrew Knapp | Giants | Apex Baseball | |
| Corey Knebel | Angels | Excel Sports Management | |
| Blaine Knight | Orioles | Frontline | |
| Andrew Knizner | Diamondbacks | CAA Sports | |
| Hiroyuki Kobayashi | Angels | Octagon | |
| Jeff Kobernus | Mariners | Steve Canter Pro Edge Sports | |
| Tom Koehler | Pirates | Pro Agents, Inc. | Dave Pepe |
| Michael Kohn | Angels | Ballengee Group | |
| Adam Kolarek | Angels | The L. Warner Companies, Inc. | |
| Tyler Kolek | Marlins | Excel Sports Management | |
| Erik Komatsu | Twins | PSI Sports Management | |
| Paul Konerko | White Sox | Landis Baseball Group | |
| George Kontos | Nationals | ACES | |
| Michael Kopech | Dodgers | CAA Sports | |
| David Kopp | Tigers | ISE Baseball | |
| Casey Kotchman | Blue Jays | Excel Sports Management | Casey Close |
| Mark Kotsay | Padres | GSE Worldwide | |
| George Kottaras | Braves | All Bases Covered | |
| Kevin Kouzmanoff | Rangers | Apex Baseball | |
| Pete Kozma | Athletics | Excel Sports Management | |
| Max Kranick | Mets | Ballengee Group | |
| Erik Kratz | Yankees | Ballplayers Agency | |
| Marc Krauss | Mets | Reynolds Sports Management | |
| Tyler Krieger | Indians | Jet Sports Management | |
| Ian Krol | Padres | ISE Baseball | |
| Jason Kubel | Twins | Wasserman | |
| Kyle Kubitza | Braves | Lagardere Sports | |
| Chad Kuhl | White Sox | ACES | |
| Eddie Kunz | Padres | Beverly Hills Sports Council | |
| Hong-Chih Kuo | Padres | Octagon | |
| Hiroki Kuroda | Yankees | Octagon | |
| Joe La Sorsa | Nationals | Gaeta Sports Management | |
| Tommy La Stella | Mariners | Beverly Hills Sports Council | |
| Kevin Lachance | Dodgers | C.L. Rocks Corporation | |
| John Lackey | Cubs | Hilliard Sports Management | |
| Aaron Laffey | Mets | Kohm/Pasti | |
| Leonardo Laffita | Tigers | Ballplayers Agency | |
| Bobby LaFromboise | Rangers | Paragon Sports International | |
| Juan Lagares | Angels | ACES | |
| Bryan LaHair | Red Sox | Octagon | |
| Gerald Laird | Diamondbacks | CSE | |
| Brandon Laird | Nationals | CSE | |
| Junior Lake | Mariners | Rep 1 Baseball | |
| Ryan LaMarre | Twins | Octagon | |
| Jake Lamb | Pirates | CAA Sports | |
| John Lamb | Angels | Paragon Sports International | |
| Andrew Lambo | Athletics | Beverly Hills Sports Council | |
| Dinelson Lamet | Royals | MVP Sports Group | |
| Ryan Langerhans | Blue Jays | ACES | |
| John Lannan | Nationals | CAA Sports | |
| Matt LaPorta | Orioles | Boras Corporation | |
| Gilbert Lara | Brewers | Wasserman | |
| Adam LaRoche | White Sox | ISE Baseball | |
| Andy LaRoche | White Sox | ISE Baseball | |
| Mat Latos | Blue Jays | The Bledsoe Agency | |
| Eric Lauer | Astros | CAA Sports | |
| Ryan Lavarnway | Marlins | Wasserman | |
| Grant Lavigne | Rockies | ISE Baseball | |
| Alex Lavisky | Indians | CSE | |
| Derek Law | Nationals | CAA Sports | |
| Casey Lawrence | Mariners | Big League Management Company, LLC | Brian Charles |
| Justin Lawrence | Rockies | Ballengee Group | |
| Brian Lawrence | Angels | PSI Sports Management | |
| Brett Lawrie | Brewers | CAA Sports | Joe Urbon |
| Tommy Layne | Cardinals | ACES | |
| Brent Leach | Brewers | KVA Sports | |
| Brandon League | Royals | ACES | |
| Mike Leake | Diamondbacks | Beverly Hills Sports Council | |
| Jack Leathersich | Rangers | Orpheus Sports | |
| Wade LeBlanc | Cardinals | Joe Rosen | |
| Luis Lebron | Orioles | SCF Sports | |
| Jose Leclerc | Rangers | Munger English Sports Management | |
| Sam LeCure | Dodgers | Beverly Hills Sports Council | |
| Wil Ledezma | Twins | Octagon | |
| Carlos Lee | Marlins | Wasserman | |
| Cliff Lee | Phillies | Frontline | |
| Derrek Lee | Pirates | Excel Sports Management | Casey Close |
| Dae-ho Lee | Mariners | MVP Sports Group | |
| Jung Hoo Lee | Giants | Boras Corporation | |
| Hak-Ju Lee | Giants | Pro Star Management, Inc. | |
| C.C. Lee | Rockies | Alan Chang | |
| Charlie Leesman | Pirates | Pro Star Management, Inc. | |
| Justin Lehr | Reds | Jim McDowell | |
| DJ LeMahieu | Yankees | Wasserman | |
| Zech Lemond | Padres | Platinum Sports | |
| Sandy Leon | Braves | The MAS+ Agency | |
| Arcenio Leon | Tigers | Octagon | |
| Joe Leonard | Braves | MVP Sports Group | |
| Dominic Leone | White Sox | Frye McCann Sports | Mike McCann |
| Anthony Lerew | Lagardere Sports | ||
| Chris Leroux | Blue Jays | Paragon Sports International | |
| Jon Lester | Cardinals | ACES | Josh Yates |
| Artie Lewicki | Diamondbacks | McNamara Baseball Group | |
| Kyle Lewis | Diamondbacks | VC Sports Group | |
| Colby Lewis | Rangers | Octagon | |
| Fred Lewis | Mets | All Bases Covered | |
| Jensen Lewis | Diamondbacks | Lagardere Sports | |
| Domingo Leyba | Pirates | ISE Baseball | |
| Adam Liberatore | Cardinals | Full Circle Sports Management | |
| Alex Liddi | Orioles | Rep 1 Baseball | |
| Brad Lidge | Nationals | Turner Gary Sports | |
| Brent Lillibridge | Rangers | CAA Sports | Joe Urbon |
| Ted Lilly | Dodgers | Full Circle Sports Management | |
| Tim Lincecum | Rangers | Beverly Hills Sports Council | Rick Thurman, Nate Heisler |
| Brad Lincoln | Pirates | CAA Sports | Peter Vescovo |
| Mike Lincoln | Octagon | ||
| Adam Lind | Red Sox | ISE Baseball | |
| Josh Lindblom | Brewers | GSI | |
| Francisco Lindor | Mets | SportsMeter | |
| Taylor Lindsey | Padres | Rowley Sports Management | |
| Matt Lindstrom | White Sox | GSE Worldwide | |
| Scott Linebrink | Cardinals | ISE Baseball | |
| Jon Link | Dodgers | ACES | |
| Lenny Linsky | Rays | PSI Sports Management | |
| Jesus Liranzo | Pirates | Movement Management Group | |
| Rymer Liriano | Mariners | ISE Baseball | |
| Francisco Liriano | Blue Jays | Wasserman | |
| Jesse Litsch | Blue Jays | Beverly Hills Sports Council | |
| Ben Lively | Indians | Meister Sports Management | |
| Kyle Lloyd | Padres | Munger English Sports Management | |
| Jonathan Loaisiga | Yankees | ISE Baseball | |
| Jose Lobaton | Cubs | Athletes X | |
| Tim Locastro | Padres | The L. Warner Companies, Inc. | |
| Jeff Locke | Marlins | ACES | |
| Kameron Loe | White Sox | PSI Sports Management | |
| Trace Loehr | Athletics | Rosenhaus Sports Representation | |
| Adam Loewen | Rangers | Moye Sports Associates | |
| Boone Logan | Brewers | James A. Kuzmich, PLLC | Joint representation with Hub Sports Management (Kevin Hubbard). |
| Zach Logue | Dodgers | MSM Sports | |
| Kyle Lohse | Royals | Boras Corporation | |
| Steve Lombardozzi | Athletics | Wasserman | |
| James Loney | Braves | GSE Worldwide | |
| Evan Longoria | Diamondbacks | TWC Sports | |
| Braden Looper | Cubs | Hendricks Sports | |
| Christian Lopes | Diamondbacks | CAA Sports | |
| Javier Lopez | Giants | Meister Sports Management | |
| Jose Lopez | Reds | World Sports Agency | |
| Rodrigo Lopez | Phillies | MVP Sports Group | Formerly BHSC |
| Wilton Lopez | Blue Jays | MDR Sports Management | |
| Yoan Lopez | Mets | Wasserman | |
| Rafael Lopez | Braves | McNamara Baseball Group | |
| Reynaldo Lopez | Braves | CAA Sports | |
| Otto Lopez | Marlins | BSE Agency | |
| Aaron Loup | Angels | Beverly Hills Sports Council | |
| Kieran Lovegrove | Dodgers | SSG Baseball | |
| Derek Lowe | Yankees | Boras Corporation | |
| Mark Lowe | Dodgers | Frye McCann Sports | |
| Brandon Lowe | Rays | The Bledsoe Agency | |
| Charlie Lowell | Marlins | Octagon | |
| Jed Lowrie | Athletics | Excel Sports Management | Casey Close |
| Ed Lucas | Diamondbacks | Steve Canter Pro Edge Sports | |
| Joey Lucchesi | Mets | CAA Sports | |
| Elvis Luciano | Blue Jays | Optimum Baseball Associates | |
| Jonathan Lucroy | Braves | Excel Sports Management | |
| Ryan Ludwick | Rangers | Beverly Hills Sports Council | |
| Cory Luebke | White Sox | Meister Sports Management | |
| Josh Lueke | Rays | Pro Talent Sports Group | |
| Lucas Luetge | Cubs | Frye McCann Sports | |
| Seth Lugo | Royals | Double Diamond Sports Management | |
| Julio Lugo | Indians | ACES | |
| Jordan Luplow | Phillies | MVP Sports Group | |
| Tristen Lutz | Brewers | SSG Baseball | |
| Zach Lutz | Marlins | MVP Sports Group | |
| Gavin Lux | Dodgers | Jet Sports Management | |
| Jesus Luzardo | Marlins | Boras Corporation | |
| Jordan Lyles | Dodgers | Ballengee Group | |
| Lance Lynn | Cardinals | Headline Sports Group | |
| Brandon Lyon | Angels | Meister Sports Management | |
| Tyler Lyons | Yankees | Icon Sports Management | |
| Mike MacDougal | Dodgers | Hendricks Sports | |
| Dixon Machado | Astros | Octagon | |
| Manny Machado | Padres | MVP Sports Group | |
| Jean Machi | White Sox | OL Baseball Group LLC | |
| Austin Maddox | Red Sox | Jet Sports Management | |
| Ryan Madson | Dodgers | All Bases Covered | |
| Kenta Maeda | Tigers | Wasserman | Adam Katz |
| Matt Magill | Mariners | PSI Sports Management | |
| Trystan Magnuson | Blue Jays | Octagon | |
| Ron Mahay | Reds | CSE | |
| Greg Mahle | Angels | SSG Baseball | |
| Tyler Mahle | Rangers | SSG Baseball | |
| Paul Maholm | Reds | Bo McKinnis | |
| Joe Mahoney | Marlins | The L. Warner Companies, Inc. | |
| Mikie Mahtook | White Sox | CAA Sports | |
| Mitch Maier | Royals | Turner Gary Sports | Eric Sobocinski |
| Luke Maile | Reds | Meister Sports Management | |
| John Maine | Marlins | Turner Gary Sports | |
| Scott Maine | Reds | Munsey Sports Management | |
| Martin Maldonado | White Sox | MVP Sports Group | |
| Matt Maloney | Twins | ACES | |
| Trey Mancini | Marlins | Frontline | |
| Seth Maness | Rangers | CAA Sports | |
| Devin Mann | Royals | MSM Sports | |
| Jeff Manship | Reds | Boras Corporation | |
| Tommy Manzella | Diamondbacks | Sports One Athlete Management | |
| Tyler Mapes | Nationals | Vanguard Sports Group | |
| Dillon Maples | Phillies | CAA Sports | |
| Shaun Marcum | Indians | Turner Gary Sports | |
| Steve Marek | Blue Jays | Hendricks Sports | |
| Sugar Ray Marimon | Pro Talent Sports Group | ||
| Jhan Marinez | White Sox | Wasserman | |
| Michael Mariot | Mariners | Arland Sports | |
| Jake Marisnick | Angels | Reynolds Sports Management | |
| Nick Markakis | Braves | TWC Sports | |
| Parker Markel | White Sox | KVA Sports | |
| Carlos Marmol | Red Sox | Rep 1 Baseball | |
| German Marquez | Rockies | L.A. Sports Management | |
| Jason Marquis | Reds | ACES | |
| Brandon Marsh | Angels | ACES | |
| Evan Marshall | Angels | ISE Baseball | |
| Sean Marshall | Reds | Meister Sports Management | |
| Lou Marson | Angels | Wasserman | |
| Andy Marte | Ballplayers Agency | ||
| Damaso Marte | Yankees | ACES | |
| Ketel Marte | Diamondbacks | Wasserman | |
| Starling Marte | Mets | Rep 1 Baseball | |
| Luis Marte | Tigers | California Sports Management | |
| Chris Martin | Red Sox | ISE Baseball | |
| Cody Martin | Mariners | Rowley Sports Management | |
| Russell Martin | Dodgers | Matt Colleran | |
| Leonys Martin | Mariners | Wasserman | |
| Brandon Martin | Rays | Reynolds Sports Management | |
| David Martinelli | Phillies | SSG Baseball | |
| Jose Martinez | Rays | Octagon | |
| Michael Martinez | Indians | Z-Axis Sports | |
| Francisco Martinez | Tigers | ISE Baseball | |
| Harold Martinez | Phillies | GSE Worldwide | |
| Harold Martinez | Phillies | GSE Worldwide | |
| Osvaldo Martinez | Dodgers | Wasserman | |
| Carlos Martinez | Giants | Octagon | Brian Mejia |
| J.D. Martinez | Mets | Boras Corporation | |
| Nick Martinez | Reds | BASH Baseball | |
| Cristhian Martinez | Braves | Wasserman | |
| Fernando Martinez | Yankees | ACES | |
| Victor Martinez | Tigers | Octagon | |
| Fabio Martinez Mesa | Angels | Wasserman | |
| Shairon Martis | Twins | Wasserman | |
| Justin Masterson | Dodgers | Rowley Sports Management | |
| Marcos Mateo | Padres | ISE Baseball | |
| Jorge Mateo | Orioles | Movement Management Group | |
| Joe Mather | Reds | Octagon | |
| Scott Mathieson | Phillies | The Sparta Group | |
| Doug Mathis | Pirates | Sports Pro Services | Danny Burgers |
| Jeff Mathis | Braves | Jet Sports Management | |
| Wyatt Mathisen | Giants | ALIGND Sports Agency | |
| Nobuhiro Matsuda | GSE Worldwide | ||
| Hideki Matsui | Athletics | Wasserman | |
| Daisuke Matsuzaka | Mets | ISE Baseball | |
| Kent Matthes | Athletics | CAA Sports | |
| Ryan Mattheus | Reds | Boras Corporation | |
| Kevin Matthews | Rangers | Bobby Barad | |
| Gary Matthews | All Bases Covered | ||
| Kevin Mattison | Marlins | Pro Agents, Inc. | Dave Pepe |
| Brian Matusz | Diamondbacks | Excel Sports Management | |
| Steven Matz | Cardinals | Icon Sports Management | |
| Tyler Matzek | Giants | PSI Sports Management | |
| Joe Mauer | Twins | Shapiro, Robinson, & Associates | |
| Brandon Maurer | Pirates | Frye McCann Sports | |
| Justin Maxwell | Red Sox | CAA Sports | |
| Trevor May | Athletics | VC Sports Group | |
| Dustin May | Dodgers | Paragon Sports International | |
| Yunesky Maya | Angels | Magnus Sports | |
| John Mayberry | Tigers | CAA Sports | |
| Cameron Maybin | Mets | Mato Sports Management | |
| Tim Mayza | Yankees | Ballengee Group | |
| Nomar Mazara | Nationals | CAA Sports | |
| Vin Mazzaro | Reds | ACES | |
| Cory Mazzoni | Cubs | BBI Sports Group | |
| Zach McAllister | Yankees | Excel Sports Management | Jim Murray |
| Matt McBride | Phillies | Jon Fetterolf | |
| Ryan McBroom | Royals | ACES | |
| Garrett McCain | Tigers | SSG Baseball | |
| James McCann | Orioles | Ballengee Group | |
| Brian McCann | Astros | Jet Sports Management | |
| Brandon McCarthy | Braves | Lagardere Sports | Ryan Ware and Chad Eberhardt |
| Kevin McCarthy | Cubs | Pro Agents, Inc. | |
| Shane McClanahan | Rays | Vayner Sports | |
| Kyle McClellan | Rangers | Steve Comte | |
| Seth McClung | Cubs | Integrity Sports Agency LLC | |
| Phil McCormick | Giants | Platinum Sports | |
| Mike McCoy | Padres | Pro Agents, Inc. | Billy Martin Jr. |
| Lance McCullers Jr. | Astros | Boras Corporation | |
| Andrew McCutchen | Pirates | Aegis Sports Management | |
| Darnell McDonald | Cubs | McNamara Baseball Group | |
| James McDonald | Cubs | Excel Sports Management | |
| John McDonald | Angels | ISE Baseball | |
| T.J. McFarland | Athletics | Octagon | |
| Jake McGee | Nationals | Wasserman | |
| Casey McGehee | Meister Sports Management | ||
| Dustin McGowan | Marlins | ACES | |
| Kevin McGowan | Nationals | Big League Management Company, LLC | Brian Charles |
| Daniel McGrath | Red Sox | ACES | |
| Reese McGuire | White Sox | Apex Baseball | |
| Deck McGuire | Rays | ISE Baseball | |
| Collin McHugh | Braves | Moye Sports Associates | |
| Brendan McKay | Rays | Apex Baseball | |
| Michael McKenry | Rays | All Bases Covered | |
| Billy McKinney | Pirates | Boras Corporation | |
| Zach McKinstry | Tigers | Northwest Sports Management Group | |
| Sean McLaughlin | Braves | Vanguard Sports Group | |
| Nate McLouth | Nationals | The Sparta Group | |
| Kyle McPherson | Rays | BBI Sports Group | |
| Austin Meadows | Tigers | Excel Sports Management | |
| Parker Meadows | Tigers | Excel Sports Management | |
| John Means | Orioles | Wasserman | |
| Brandon Medders | Sports One Athlete Management | ||
| Luis Medina | Athletics | Beverly Hills Sports Council | Cesar Suarez |
| Yoervis Medina | Phillies | GSE Worldwide | |
| Adonis Medina | Nationals | Boras Corporation | |
| Kris Medlen | Diamondbacks | Wasserman | |
| Evan Meek | Nationals | ISE Baseball | |
| Jenrry Mejia | Red Sox | GSE Worldwide | |
| Erick Mejia | Mariners | Fusion Sports Agency | |
| Adalberto Mejia | White Sox | Rep 1 Baseball | Nelson Montes de Oca |
| Francisco Mejia | Brewers | ISE Baseball | |
| Seth Mejias-Brean | Padres | Lagardere Sports | |
| Mark Melancon | Diamondbacks | ISE Baseball | |
| M.J. Melendez | Royals | ISE Baseball | |
| Keury Mella | Reds | Rep 1 Baseball | Nelson Montes de Oca |
| Tim Melville | Rockies | Jason Cook | |
| Roman Mendez | Nationals | Rep 1 Baseball | |
| Hector Mendoza | Cardinals | Wasserman | |
| Luis Mendoza | Royals | Pro Talent Sports Group | |
| Joey Meneses | Phillies | The MAS+ Agency | |
| Anthony Meo | Diamondbacks | Octagon | |
| Oscar Mercado | Tigers | Excel Sports Management | |
| Michael Mercado | Phillies | John Boggs & Associates | |
| Jordy Mercer | Nationals | Boras Corporation | |
| Kevin Merrell | Royals | Reynolds Sports Management | |
| Whit Merrifield | Braves | The L. Warner Companies, Inc. | |
| Melky Mesa | Blue Jays | ACES | |
| Devin Mesoraco | Mets | Jet Sports Management | |
| Alex Meyer | Angels | Boras Corporation | |
| Ben Meyer | Marlins | Sterling Sports Management | |
| Levi Michael | Twins | CAA Sports | |
| Jason Michaels | Astros | Wasserman | |
| Will Middlebrooks | Phillies | ISE Baseball | |
| Keynan Middleton | Cardinals | ACES | |
| Jose Mijares | Reds | Eric Goldschmidt | |
| Miles Mikolas | Cardinals | Octagon | |
| Aaron Miles | Dodgers | David Schwartz | |
| Wade Miley | Brewers | O'Connell Sports Management | |
| Lastings Milledge | White Sox | GSE Worldwide | |
| Andrew Miller | Cardinals | Frontline | |
| Corky Miller | Reds | ISE Baseball | |
| Jai Miller | Orioles | Wasserman | |
| Jim Miller | Rays | Double Diamond Sports Management | |
| Trever Miller | Cubs | Magnus Sports | |
| Shelby Miller | Tigers | Roc Nation Sports | Gavin Wright |
| Brad Miller | Padres | ISE Baseball | |
| Jalen Miller | Giants | Ballengee Group | |
| Owen Miller | Brewers | C.L. Rocks Corporation | |
| Adam Milligan | Braves | The Sparta Group | |
| Brad Mills | Mariners | Sports One Athlete Management | |
| Alec Mills | Reds | Ballengee Group | |
| Kevin Millwood | Mariners | Boras Corporation | |
| Tommy Milone | Mariners | All Bases Covered Sports Management | |
| Zach Miner | Mariners | Boras Corporation | |
| Albert Minnis | Astros | Platinum Sports | |
| Mike Minor | Royals | Jet Sports Management | |
| A.J. Minter | Braves | Excel Sports Management | |
| Juan Miranda | Rays | Wasserman | |
| Bryan Mitchell | Marlins | CSE | |
| Andrew Mitchell | White Sox | CAA Sports | Peter Vescovo |
| Jared Mitchell | Yankees | CAA Sports | |
| Garrett Mock | Diamondbacks | C.L. Rocks Corporation | |
| Brian Moehler | CSE | ||
| Bengie Molina | ISE Baseball | ||
| Jose Molina | Rays | ACES | |
| Yadier Molina | Cardinals | MDR Sports Management | |
| Nestor Molina | Cardinals | ISE Baseball | |
| Dustin Molleken | Tigers | KVA Sports | |
| Carlos Monasterios | Dodgers | The L. Warner Companies, Inc. | |
| Yoan Moncada | White Sox | Movement Management Group | Charisse Dash, Alex Cotto |
| Carlos Moncrief | Giants | GSI | |
| Adalberto Mondesi | Red Sox | CAA Sports | |
| Mickey Moniak | Angels | Wasserman | |
| Frankie Montas | Brewers | Republik Sports | |
| Rafael Montero | Astros | GSE Worldwide | |
| Miguel Montero | Nationals | Rep 1 Baseball | |
| Jesus Montero | Orioles | TLA Worldwide | |
| Mike Montgomery | Dodgers | TWC Sports | |
| Jordan Montgomery | Diamondbacks | Beverly Hills Sports Council | |
| Luke Montz | Red Sox | Pro Agents, Inc. | |
| Logan Moon | Royals | Platinum Sports | |
| Tyler Moore | Marlins | ISE Baseball | |
| Matt Moore | Angels | Apex Baseball | |
| Jeremy Moore | Dodgers | ISE Baseball | |
| Adam Moore | Royals | Frye McCann Sports | |
| Scott Moore | Cardinals | GSE Worldwide | |
| Melvin Mora | Diamondbacks | Eric Goldschmidt | |
| Franklin Morales | Blue Jays | Boras Corporation | |
| Jose Morales | Pirates | MDR Sports Management | |
| Kendrys Morales | Yankees | Wasserman | |
| Jovani Moran | Twins | MDR Sports Management | |
| Adrian Morejon | Padres | Boras Corporation | |
| Brent Morel | Pirates | Apex Baseball | |
| Mitch Moreland | Athletics | Paragon Sports International | |
| Nyjer Morgan | Indians | Turner Gary Sports | |
| Adam Morgan | Astros | CAA Sports | Gavin Wright |
| Mike Morin | Braves | Meister Sports Management | |
| Justin Morneau | White Sox | ISE Baseball | |
| Bryan Morris | Giants | James A. Kuzmich, PLLC | |
| Jacob Morris | White Sox | SSG Baseball | |
| Logan Morrison | Reds | ISE Baseball | |
| Brandon Morrow | Dodgers | Wasserman | |
| Mike Morse | Giants | ACES | |
| Clayton Mortensen | Royals | Beverly Hills Sports Council | |
| Charlie Morton | Braves | Jet Sports Management | |
| Guillermo Moscoso | Magnus Sports | ||
| Guillermo Moscoso | Dodgers | DJ Rengifo Y Associates LLC | |
| Robert Mosebach | Angels | ISE Baseball | |
| Dustin Moseley | Padres | Frontline | |
| Daniel Moskos | Cubs | ISE Baseball | |
| Brandon Moss | Athletics | ACES | |
| Guillermo Mota | Giants | Wasserman | |
| Jason Motte | Cardinals | ACES | |
| Taylor Motter | Cardinals | O'Connell Sports Management | |
| Ryan Mountcastle | Orioles | Apex Baseball | |
| Mike Moustakas | White Sox | Boras Corporation | |
| Steven Moya | Ballplayers Agency | ||
| Gabriel Moya | Twins | Beverly Hills Sports Council | |
| Jamie Moyer | Blue Jays | Self-Represented | |
| Peter Moylan | Braves | Paragon Sports International | |
| Edward Mujica | Giants | Octagon | |
| Jose Mujica | Rockies | Movement Management Group | |
| Mark Mulder | Angels | Big League Management Company, LLC | Brian Charles |
| Conor Mullee | Cubs | Munger English Sports Management | |
| Kyle Muller | Athletics | SSG Baseball | |
| Chris Muller | Rays | SSG Baseball | |
| Kevin Mulvey | Mets | The L. Warner Companies, Inc. | |
| Max Muncy | Dodgers | Hub Sports Management | |
| Kevin Munson | Diamondbacks | ISE Baseball | |
| John Ryan Murphy | Pirates | ISE Baseball | |
| Tanner Murphy | Braves | Platinum Sports | |
| Daniel Murphy | Angels | ACES | |
| David Murphy | Twins | Moye Sports Associates | |
| Donnie Murphy | Brewers | All Bases Covered | |
| Tom Murphy | Giants | Ballengee Group | |
| Joey Murray | Blue Jays | Pro Star Management, Inc. | |
| Matt Murton | Tigers | ACES | |
| Brett Myers | Indians | Landis Baseball Group | |
| Wil Myers | Reds | CAA Sports | |
| Sung-Bum Na | Boras Corporation | ||
| Xavier Nady | Mariners | Boras Corporation | |
| Hiroyuki Nakajima | Athletics | GSE Worldwide | |
| Mike Napoli | Indians | Paragon Sports International | |
| Chris Narveson | Indians | ISE Baseball | |
| Telvin Nash | Astros | CSE | |
| Joe Nathan | Nationals | Pro Agents, Inc. | Dave Pepe |
| Daniel Nava | Pirates | ISE Baseball | |
| Dioner Navarro | Indians | MDR Sports Management | |
| Oswaldo Navarro | Mets | GSE Worldwide | |
| Yamaico Navarro | Orioles | Wasserman | Andy Mota |
| Efren Navarro | Cubs | Benchmark Sports Advisors | |
| Josh Naylor | Indians | ISE Baseball | |
| Drew Naylor | Phillies | The Sparta Group | |
| Thomas Neal | Reds | CAA Sports | Jeff Berry |
| Zach Neal | Athletics | MSM Sports | |
| Kris Negron | Dodgers | John Boggs & Associates | |
| Nick Neidert | Cubs | CAA Sports | |
| Chris Nelson | Royals | Jon Fetterolf | |
| Jimmy Nelson | Dodgers | CAA Sports | Gavin Wright |
| Hector Neris | Astros | Octagon | |
| Pat Neshek | Phillies | Meister Sports Management | |
| Tucker Neuhaus | Brewers | Meister Sports Management | |
| Tyler Nevin | Athletics | John Boggs & Associates | |
| Sean Newcomb | Athletics | Klutch Sports | |
| Ljay Newsome | Giants | KHG Sports Management | |
| Gift Ngoepe | Phillies | Elite Sports Group | |
| Fu-Te Ni | Tigers | Octagon | |
| Juan Nicasio | Phillies | El Juego Sports Management | |
| Mike Nickeas | Blue Jays | CAA Sports | Nez Balelo |
| Justin Nicolino | White Sox | Octagon | |
| Jeff Niemann | Rays | Excel Sports Management | |
| Jonathon Niese | Mariners | O'Connell Sports Management | |
| Adrian Nieto | Reds | ACES | |
| Kirk Nieuwenhuis | Mariners | Paragon Sports International | |
| Fernando Nieve | Athletics | MDR Sports Management | |
| Wil Nieves | Braves | MDR Sports Management | |
| Mike Nikorak | Rockies | Ballengee Group | |
| Brandon Nimmo | Mets | CAA Sports | |
| Dustin Nippert | Boras Corporation | ||
| Tsuyoshi Nishioka | Twins | Beverly Hills Sports Council | |
| Jayson Nix | Phillies | Turner Gary Sports | |
| Laynce Nix | Phillies | CAA Sports | |
| Hector Noesi | Marlins | ACES | |
| Austin Nola | Royals | Paragon Sports International | |
| Aaron Nola | Phillies | Paragon Sports International | |
| Sean Nolin | Marlins | Lagardere Sports | |
| Nick Noonan | Rangers | ISE Baseball | Mike Milchin |
| Bud Norris | Phillies | Ballengee Group | |
| Derek Norris | Tigers | MVP Sports Group | |
| Daniel Norris | Indians | Excel Sports Management | |
| Ivan Nova | Rockies | GSE Worldwide | |
| Eduardo Nunez | Mets | ISE Baseball | Troy Caradonna |
| Gustavo Nunez | Tigers | ACES | |
| Jhon Nunez | Red Sox | Z-Axis Sports | |
| Dom Nunez | Indians | ALIGND Sports Agency | |
| Vidal Nuno | Dodgers | The L. Warner Companies, Inc. | |
| Darren O'Day | Braves | Ballengee Group | |
| Eric O'Flaherty | Braves | MVP Sports Group | |
| Ryan O'Hearn | Orioles | Platinum Sports | |
| Jack O'Loughlin | Athletics | Gaeta Sports Management | |
| Shawn O'Malley | Rockies | TWC Sports | |
| Ryan O'Rourke | Mets | Sterling Sports Management | |
| Sean O'Sullivan | Nationals | John Boggs & Associates | |
| Trevor Oaks | Giants | Beverly Hills Sports Council | |
| Scott Oberg | Rockies | Big League Management Company, LLC | Brian Charles |
| Wirfin Obispo | Brewers | InnerArtists Management | |
| Rougned Odor | Yankees | Beverly Hills Sports Council | |
| Jake Odorizzi | Rays | Excel Sports Management | |
| Alexi Ogando | Diamondbacks | Movement Management Group | |
| Seung-hwan Oh | Rockies | Rosenhaus Sports Representation | |
| Tomo Ohka | Orioles | Octagon | |
| Ross Ohlendorf | Reds | Jon Fetterolf | |
| Michael Ohlman | Red Sox | Sports One Athlete Management | |
| Will Ohman | Nationals | Beverly Hills Sports Council | |
| Chris Okey | Dodgers | Jet Sports Management | |
| Andrew Oliver | Brewers | Boras Corporation | |
| Darren Oliver | Blue Jays | Frye McCann Sports | |
| Hector Olivera | Padres | GSE Worldwide | |
| Miguel Olivo | Giants | World Sports Agency | |
| Adam Oller | Marlins | Gaeta Sports Management | |
| Edgar Olmos | Orioles | TWC Sports | |
| Michael Olmsted | Brewers | Full Circle Sports Management | |
| Matt Olson | Braves | Jet Sports Management | |
| Tyler Olson | Red Sox | Ballplayers Agency | |
| Garrett Olson | Athletics | Wasserman | |
| Mike Olt | Twins | Wasserman | |
| Logan Ondrusek | Giants | Rich Thompson | |
| Magglio Ordonez | Tigers | Boras Corporation | |
| Paulo Orlando | White Sox | Rep 1 Baseball | |
| Ricky Oropesa | Giants | Boras Corporation | |
| Pete Orr | Brewers | True Gravity Baseball | |
| Kaleb Ort | Astros | Nello P. Gamberdino II | |
| Ricky Orta | Rays | ACES | |
| Anthony Ortega | Dodgers | Greg Maroni | |
| David Ortiz | Red Sox | ISE Baseball | |
| Ramon Ortiz | Blue Jays | Magnus Sports | |
| Luis Ortiz | Phillies | Reynolds Sports Management | |
| Joseph Ortiz | Cubs | Godoy Sports | |
| Josh Osich | Reds | Ballengee Group | |
| Jose Osuna | Pirates | ISE Baseball | |
| Jose Osuna | Pirates | ISE Baseball | |
| Roberto Osuna | GEM Agency | ||
| Roy Oswalt | Rockies | BASH Baseball | |
| Corey Oswalt | Rockies | John Boggs & Associates | |
| Shohei Otani | CAA Sports | ||
| Dan Otero | Yankees | ACES | |
| Adam Ottavino | Mets | All Bases Covered | |
| Josh Outman | Nationals | Turner Gary Sports | |
| Lyle Overbay | Brewers | Octagon | |
| Juan Carlos Oviedo | Rangers | Wasserman | |
| Rudy Owens | Rockies | Wasserman | |
| Henry Owens | Diamondbacks | CAA Sports | |
| Chris Owings | Dodgers | ACES | |
| Micah Owings | Mariners | Integrity Sports & Artists Agency | |
| Marcell Ozuna | Braves | MDR Sports Management | |
| Jordan Pacheco | Mariners | Beverly Hills Sports Council | |
| Chris Paddack | Twins | Boras Corporation | |
| Vicente Padilla | Red Sox | Wasserman | |
| Angel Pagan | Giants | GSE Worldwide | |
| Emilio Pagan | Reds | Ballengee Group | |
| Jermaine Palacios | Tigers | Rep 1 Baseball | Nelson Montes de Oca |
| Daniel Palka | Red Sox | Ballengee Group | |
| Joe Panik | Marlins | Jet Sports Management | |
| Jonathan Papelbon | Nationals | ACES | |
| Isaac Paredes | Cubs | CAA Sports | |
| Jimmy Paredes | Phillies | Moye Sports Associates | Michael Moye |
| Chan Ho Park | Beverly Hills Sports Council | ||
| Byung-ho Park | Twins | Octagon | |
| Blake Parker | Cardinals | Meister Sports Management | |
| Jarrod Parker | Athletics | Reynolds Sports Management | |
| Jarrett Parker | Mets | CAA Sports | |
| Bobby Parnell | White Sox | ACES | |
| Gerardo Parra | Nationals | Octagon | |
| Manny Parra | Padres | CAA Sports | Joe Urbon |
| Jordan Parraz | Braves | True Gravity Baseball | |
| Wes Parsons | Indians | Platinum Sports | |
| Curtis Partch | Pirates | Sterling Sports Management | |
| Mike Pascoe | Blue Jays | Vanguard Sports Group | |
| Tyler Pastornicky | Phillies | Team One Management | Ken Turkel |
| Corey Patterson | Mariners | Jim Bronner and Bob Gilhooley | |
| Eric Patterson | Brewers | Boras Corporation | |
| Troy Patton | Marlins | CAA Sports | Peter Vescovo |
| Spencer Patton | Athletics | Nello P. Gamberdino II | |
| Xavier Paul | Phillies | Paragon Sports International | |
| David Pauley | Diamondbacks | Octagon | Fred Wray |
| Felipe Paulino | Astros | Octagon | |
| Ronny Paulino | Mets | ISE Baseball | |
| David Paulino | Phillies | Optimum Baseball Associates | |
| Carl Pavano | Pro Agents, Inc. | Dave Pepe | |
| James Paxton | Red Sox | Boras Corporation | |
| Brad Peacock | Twins | ACES | |
| Steve Pearce | Red Sox | Excel Sports Management | |
| Jacob Pearson | Twins | Rep 1 Baseball | |
| Nate Pearson | Cubs | Excel Sports Management | |
| Jake Peavy | Giants | CAA Sports | Jeff Berry |
| Joc Pederson | Diamondbacks | Excel Sports Management | |
| Dustin Pedroia | Red Sox | ACES | |
| Francisco Peguero | Orioles | The L. Warner Companies, Inc. | |
| Carlos Peguero | Cardinals | Octagon | |
| Mike Pelfrey | White Sox | Boras Corporation | |
| Brayan Pena | Tigers | MDR Sports Management | |
| Carlos Pena | Rays | Boras Corporation | |
| Ramiro Pena | Beverly Hills Sports Council | ||
| Tony Pena | Angels | Boras Corporation | |
| Wily Mo Pena | Indians | InnerArtists Management | |
| Ariel Pena | Brewers | Bryce Dixon | |
| Francisco Pena | Athletics | Rep 1 Baseball | |
| Hunter Pence | Giants | Beverly Hills Sports Council | Rick Thurman, Nate Heisler |
| Hayden Penn | John Boggs & Associates | ||
| Cliff Pennington | Apex Baseball | ||
| Brad Penny | Blue Jays | MSM Sports | |
| Max Pentecost | Blue Jays | Jet Sports Management | |
| Wily Peralta | Pirates | GSE Worldwide | |
| David Peralta | Padres | ACES | |
| Jhonny Peralta | Red Sox | MDR Sports Management | |
| Joel Peralta | Cubs | Mark Gilling | |
| Freddy Peralta | Brewers | Rep 1 Baseball | |
| Wandy Peralta | Padres | ISE Baseball | |
| Jose Peraza | Mets | ISE Baseball | |
| Martin Perez | Padres | OL Baseball Group LLC | |
| Salvador Perez | Royals | Beverly Hills Sports Council | Rick Thurman |
| Luis Perez | Indians | Proformance | |
| Eury Perez | Mariners | Beverly Hills Sports Council | |
| Hernan Perez | Reds | Octagon | |
| Audry Perez | Orioles | A1 Performance Group | |
| Roberto Perez | Red Sox | MDR Sports Management | |
| Hector Perez | Phillies | Rep 1 Baseball | Nelson Montes de Oca |
| Franklin Perez | Tigers | Beverly Hills Sports Council | |
| Carlos Perez | Athletics | TLA Worldwide | |
| Chris Perez | Orioles | CAA Sports | Nez Balelo |
| Juan Perez | Rangers | World Sports Agency | |
| Oliver Perez | Diamondbacks | Boras Corporation | |
| Rafael Perez | Mariners | Drew Seccafico | |
| Michael Perez | Mariners | MDR Sports Management | |
| Cameron Perkins | Dodgers | Onyx Sports Management | |
| Glen Perkins | Twins | ISE Baseball | |
| Ryan Perry | Tigers | Wasserman | |
| Vinnie Pestano | Yankees | GSE Worldwide | |
| Bryan Petersen | Marlins | ISE Baseball | |
| Jace Peterson | Diamondbacks | ISE Baseball | |
| D.J. Peterson | White Sox | Excel Sports Management | |
| Dustin Peterson | Phillies | Excel Sports Management | |
| Yusmeiro Petit | Padres | Godoy Sports | |
| Jake Petricka | Angels | Platinum Sports | |
| Jonathan Pettibone | Cubs | Beverly Hills Sports Council | |
| Chris Pettit | Orioles | Orpheus Sports | Joe Rosen |
| Andy Pettitte | Yankees | Excel Sports Management | Jim Murray |
| Tommy Pham | Royals | GEM Agency | |
| Josh Phegley | Cubs | Pro Star Management, Inc. | |
| David Phelps | Blue Jays | Jet Sports Management | |
| Cord Phelps | Phillies | Boras Corporation | |
| Brett Phillips | Yankees | O'Connell Sports Management | |
| Brandon Phillips | Red Sox | ACES | |
| Zach Phillips | Pirates | Matt Colleran | |
| Felix Pie | Pirates | ISE Baseball | |
| Juan Pierre | Marlins | ISE Baseball | |
| A.J. Pierzynski | Braves | Hilliard Sports Management | |
| Tyler Pike | Braves | Jet Sports Management | |
| Brett Pill | Tigers | Nick Lampros | |
| Kevin Pillar | Angels | All Bases Covered | |
| Manny Pina | Athletics | Rep 1 Baseball | Nelson Montes de Oca |
| Chad Pinder | Braves | Icon Sports Management | |
| Michael Pineda | Tigers | ISE Baseball | Troy Caradonna |
| Joel Pineiro | Blue Jays | Wasserman | |
| Yohan Pino | Twins | Steve Comte | |
| Riley Pint | Rockies | Excel Sports Management | |
| Ricardo Pinto | Phillies | L.A. Sports Management | |
| Josmil Pinto | Giants | GSE Worldwide | |
| Jose Pirela | Phillies | ISE Baseball | |
| Stephen Piscotty | Athletics | CAA Sports | |
| Kevin Plawecki | Padres | ACES | |
| Zach Plesac | Angels | CAA Sports | |
| Trevor Plouffe | Phillies | CAA Sports | Nez Balelo |
| Nick Plummer | Reds | Wasserman | |
| Colin Poche | Rays | SSG Baseball | |
| Scott Podsednik | Red Sox | Sports One Athlete Management | |
| Placido Polanco | Marlins | ACES | |
| Jorge Polanco | Mariners | Octagon | |
| Gregory Polanco | Blue Jays | Octagon | |
| A.J. Pollock | Giants | Excel Sports Management | Brian Peters |
| Drew Pomeranz | Giants | CAA Sports | |
| Dalton Pompey | Angels | CAA Sports | |
| Ryan Pope | Yankees | Octagon | |
| Sean Poppen | Mariners | Madden Sports Group | |
| Rick Porcello | Mets | Excel Sports Management | Jim Murray |
| Adys Portillo | SPS Sports Group | ||
| Jorge Posada | Yankees | ACES | |
| Buster Posey | Giants | CAA Sports | Jeff Berry |
| Hudson Potts | Red Sox | SSG Baseball | |
| Brooks Pounders | Mariners | John Boggs & Associates | |
| Omar Poveda | Nationals | GSE Worldwide | |
| Landon Powell | Astros | ISE Baseball | |
| Martin Prado | Marlins | GSE Worldwide | |
| Alex Presley | White Sox | Sports Pro Services | Danny Burgers |
| Ryan Pressly | Astros | Ballengee Group | |
| David Price | Dodgers | Bo McKinnis | |
| Mark Prior | Reds | John Boggs & Associates | |
| Scott Proctor | Giants | Frontline | |
| Jurickson Profar | Padres | Boras Corporation | |
| Benino Pruneda | Braves | CAA Sports | Peter Vescovo |
| Stephen Pryor | Twins | Frye McCann Sports | |
| Kevin Pucetas | Rangers | CSE | |
| Cesar Puello | Mets | TLA Worldwide | |
| Yasiel Puig | Luba Sports | ||
| Cristopher Pujols | Mets | Z-Axis Sports | |
| Albert Pujols | Cardinals | MVP Sports Group | |
| A.J. Puk | Diamondbacks | ISE Baseball | |
| Nick Punto | Diamondbacks | Jeff Caulfield | |
| David Purcey | White Sox | Hilliard Sports Management | |
| Matt Purke | Mets | CAA Sports | Peter Vescovo |
| Luke Putkonen | Tigers | CSE | |
| Zach Putnam | White Sox | ISE Baseball | |
| J.J. Putz | Diamondbacks | Landis Baseball Group | |
| Kevin Quackenbush | Dodgers | Full Circle Sports Management | |
| Chad Qualls | Rockies | Excel Sports Management | Jim Murray |
| Carlos Quentin | Red Sox | CAA Sports | |
| Roman Quinn | Brewers | Reynolds Sports Management | |
| Heath Quinn | Giants | Ballengee Group | |
| Jose Quintana | Mets | Wasserman | |
| Omar Quintanilla | Rockies | MVP Sports Group | Dan Lozano |
| Humberto Quintero | Tigers | Octagon | |
| Ryan Raburn | Nationals | CSE | |
| Ceddanne Rafaela | Red Sox | MVP Sports Group | |
| Cole Ragans | Royals | Jet Sports Management | |
| Brooks Raley | Mets | Vanguard Sports Group | |
| Neil Ramirez | Angels | The Bledsoe Agency | |
| Jose Ramirez | Indians | Republik Sports | |
| Jean Ramirez | Rays | C.L. Rocks Corporation | |
| Tyler Ramirez | Athletics | Reynolds Sports Management | |
| Alexei Ramirez | Rays | Jaime Torres | |
| Aramis Ramirez | Pirates | Rep 1 Baseball | |
| Erasmo Ramirez | Rays | ISE Baseball | Fernando Cuza |
| Hanley Ramirez | Indians | Wasserman | |
| Manny Ramirez | Rangers | Magnus Sports | |
| J.C. Ramirez | Twins | Octagon | |
| Yordany Ramirez | Astros | KVA Sports | |
| Harold Ramirez | Braves | MVP Sports Group | |
| Noe Ramirez | Diamondbacks | Boras Corporation | |
| Cesar Ramos | Dodgers | Wasserman | |
| Wilson Ramos | Rangers | Octagon | |
| A.J. Ramos | Angels | Sports One Athlete Management | |
| Heliot Ramos | Giants | Munger English Sports Management | |
| Anthony Ranaudo | White Sox | Boras Corporation | |
| Cornelius Randolph | Phillies | Boras Corporation | |
| Cody Ransom | Diamondbacks | Meister Sports Management | |
| Clay Rapada | Giants | Meister Sports Management | |
| Colby Rasmus | Orioles | Excel Sports Management | |
| Cory Rasmus | Rays | Beverly Hills Sports Council | |
| Rob Rasmussen | Angels | Wasserman | |
| Jon Rauch | Royals | Turner Gary Sports | |
| Josh Ravin | Braves | Elite Sports Group | |
| Robbie Ray | Giants | GSE Worldwide | |
| Chris Ray | Athletics | ISE Baseball | |
| Robert Ray | Marlins | Lagardere Sports | |
| Colin Rea | Brewers | Sterling Sports Management | |
| J.T. Realmuto | Phillies | CAA Sports | |
| Anthony Recker | Diamondbacks | All Bases Covered | |
| Matt Reckling | Dodgers | CAA Sports | Peter Vescovo |
| Josh Reddick | Mets | ACES | |
| Tim Redding | Blue Jays | Integrity Sports Agency LLC | |
| Evan Reed | Tigers | Rowley Sports Management | |
| Chris Reed | Marlins | Boras Corporation | |
| A.J. Reed | White Sox | Wasserman | |
| Jake Reed | Red Sox | PSI Sports Management | |
| Addison Reed | Twins | Wasserman | |
| Cody Reed | Rays | Jet Sports Management | |
| Jakson Reetz | Giants | Wasserman | |
| Rob Refsnyder | Red Sox | PSI Sports Management | |
| Ryan Reid | Marlins | Orpheus Sports | |
| Sean Reid-Foley | Mets | Jet Sports Management | |
| Nolan Reimold | Orioles | Double Diamond Sports Management | |
| Zac Reininger | Tigers | SSG Baseball | |
| Tony Renda | Red Sox | John Boggs & Associates | |
| Anthony Rendon | Angels | Boras Corporation | |
| Luis Rengifo | Dodgers | MVP Sports Group | |
| Edgar Renteria | Reds | Meister Sports Management | |
| Jason Repko | Red Sox | MVP Sports Group | Formerly BHSC |
| Ben Revere | Blue Jays | Meister Sports Management | |
| Dennys Reyes | Orioles | Paragon Sports International | |
| Jose Reyes | Mets | GSE Worldwide | |
| Jo-Jo Reyes | Marlins | Paragon Sports International | |
| Franmil Reyes | Nationals | Optimum Baseball Associates | |
| Alex Reyes | Dodgers | Octagon | Brian Mejia |
| Victor Reyes | White Sox | ISE Baseball | |
| Greg Reynolds | Padres | CAA Sports | |
| Mark Reynolds | Rockies | Ballengee Group | |
| Matt Reynolds | Giants | Frye McCann Sports | Mike McCann |
| Matt Reynolds | White Sox | Arland Sports | |
| Bryan Reynolds | Pirates | CAA Sports | |
| Jacob Rhame | Padres | Beverly Hills Sports Council | |
| Arthur Rhodes | Cardinals | Beverly Hills Sports Council | |
| Will Rhymes | Nationals | Beverly Hills Sports Council | |
| Scott Rice | Diamondbacks | Jim McDowell | |
| Jason Rice | Braves | The Sparta Group | |
| Clayton Richard | White Sox | ISE Baseball | |
| Garrett Richards | Rangers | ISE Baseball | |
| Trevor Richards | Twins | Apex Baseball | |
| Antoan Richardson | Dodgers | Orpheus Sports | |
| Dustin Richardson | Dodgers | Marc Kligman | |
| Scott Richmond | Rangers | GSE Worldwide | |
| Joey Rickard | Giants | GSE Worldwide | |
| JT Riddle | Mets | Meister Sports Management | |
| Austin Riley | Braves | ALIGND Sports Agency | |
| Royce Ring | Rockies | John Boggs & Associates | |
| Cory Riordan | Tigers | CAA Sports | |
| Alex Rios | Royals | Boras Corporation | |
| Yacksel Rios | Mets | Gavin Kahn | |
| Amaury Rivas | Marlins | ACES | |
| Jeremy Rivera | Red Sox | C.L. Rocks Corporation | |
| Jansiel Rivera | Mariners | Z-Axis Sports | |
| Juan Rivera | Diamondbacks | Eric Goldschmidt | |
| Mariano Rivera | Yankees | ISE Baseball | |
| Rene Rivera | Nationals | MDR Sports Management | |
| Saul Rivera | Diamondbacks | MDR Sports Management | |
| Anthony Rizzo | Yankees | Sports One Athlete Management | |
| Joe Rizzo | Tigers | ACES | |
| Donn Roach | White Sox | GSE Worldwide | |
| Victor Roache | Dodgers | Reynolds Sports Management | |
| Tanner Roark | Braves | Matt Colleran | |
| Luis Robert | White Sox | Magnus Sports | |
| Griffin Roberts | Cardinals | The L. Warner Companies, Inc. | |
| Brian Roberts | Yankees | ISE Baseball | |
| Ryan Roberts | Athletics | Beverly Hills Sports Council | |
| David Robertson | Rangers | Self-Represented | |
| Nate Robertson | Rangers | Steve Canter Pro Edge Sports | |
| Daniel Robertson | Braves | MVP Sports Group | |
| Shane Robinson | Braves | CAA Sports | |
| Clint Robinson | Nationals | ACES | |
| Derrick Robinson | Reds | The Bledsoe Agency | |
| Trayvon Robinson | Tigers | Steve Comte | |
| Mauricio Robles | Phillies | SPS Sports Group | |
| Hansel Robles | Dodgers | TLA Worldwide | |
| Victor Robles | Mariners | Republik Sports | |
| Brendan Rodgers | Rockies | Excel Sports Management | |
| Fernando Rodney | Nationals | Octagon | Brian Mejia |
| Carlos Rodon | Yankees | Boras Corporation | |
| Armando Rodriguez | Rangers | ACES | |
| Paco Rodriguez | Padres | MVP Sports Group | |
| Yorman Rodriguez | Reds | Rep 1 Baseball | |
| Santos Rodriguez | Diamondbacks | MDR Sports Management | |
| Joely Rodriguez | Red Sox | L.A. Sports Management | |
| Dereck Rodriguez | Braves | Gavin Kahn | |
| Alex Rodriguez | Yankees | None | |
| Eduardo Rodriguez | Diamondbacks | Octagon | |
| Fernando Rodriguez | Red Sox | Ballplayers Agency | |
| Francisco Rodriguez | Phillies | Beverly Hills Sports Council | |
| Henry Rodriguez | Marlins | GSE Worldwide | |
| Ivan Rodriguez | Nationals | Boras Corporation | |
| Luis Rodriguez | Angels | GSE Worldwide | |
| Rafael Rodriguez | Diamondbacks | Ballplayers Agency | |
| Sean Rodriguez | Marlins | MVP Sports Group | |
| Wandy Rodriguez | Orioles | Wasserman | |
| Josh Rodriguez | Mets | Hendricks Sports | |
| Chaz Roe | Rays | Apex Baseball | |
| Josh Roenicke | Angels | GSE Worldwide | |
| Jason Rogers | Pirates | Rep 1 Baseball | |
| Taylor Rogers | Giants | Frontline | |
| Trevor Rogers | Orioles | PSI Sports Management | |
| Ryan Rohlinger | Indians | The Sparta Group | |
| Miguel Rojas | Dodgers | Beverly Hills Sports Council | |
| Josh Rojas | Mariners | MVP Sports Group | |
| Scott Rolen | Reds | ACES | |
| Ryan Rolinger | Giants | The Sparta Group | |
| Ryan Rolison | Rockies | CAA Sports | |
| Jimmy Rollins | Giants | MVP Sports Group | |
| Jamie Romak | Padres | Taurus Sports Associates | David Sloane |
| Sal Romano | Red Sox | Wasserman | |
| Jojo Romero | Cardinals | PSI Sports Management | |
| Stefen Romero | Dodgers | Beverly Hills Sports Council | Nate Heisler |
| J.C. Romero | Nationals | Magnus Sports | |
| Ricky Romero | Giants | GSE Worldwide | |
| Felix Romero | Giants | Ballplayers Agency | |
| Andrew Romine | Cubs | Moye Sports Associates | |
| Austin Romine | Reds | Moye Sports Associates | Bill Rose |
| Sergio Romo | Giants | Meister Sports Management | |
| Hector Rondon | Red Sox | Octagon | |
| Angel Rondon | Giants | MDR Sports Management | |
| Angel Rondon | Cardinals | MDR Sports Management | |
| Bruce Rondon | White Sox | ISE Baseball | |
| Brent Rooker | Athletics | The Bledsoe Agency | |
| Ben Rortvedt | Rays | Wasserman | |
| Adam Rosales | Indians | Hilliard Sports Management | Steve Hilliard |
| Leo Rosales | Diamondbacks | KVA Sports | |
| Eddie Rosario | Mets | Roc Nation Sports | |
| Randy Rosario | Royals | Movement Management Group | |
| Amed Rosario | Reds | Octagon | |
| Sandy Rosario | Giants | Wasserman | |
| Wilin Rosario | Twins | Team One Management | |
| Dan Rosenbaum | Red Sox | The L. Warner Companies, Inc. | |
| Trevor Rosenthal | Tigers | Boras Corporation | |
| Seth Rosin | Rangers | Wasserman | |
| Robbie Ross | Tigers | Matt Colleran | |
| Cody Ross | Athletics | ISE Baseball | |
| David Ross | Cubs | Sports One Athlete Management | |
| Tyson Ross | Rangers | Wasserman | |
| Joe Ross | Brewers | Wasserman | |
| Zac Rosscup | Astros | Magnus Sports | |
| Michael Roth | Rangers | Pro Agents, Inc. | |
| Vinny Rottino | White Sox | Turner Gary Sports | |
| Aaron Rowand | Marlins | Landis Baseball Group | |
| Ryan Rowland-Smith | Reds | Frye McCann Sports | Mike McCann |
| Drew Rucinski | Athletics | Paragon Sports International | |
| Darin Ruf | Brewers | Vanguard Sports Group | |
| Chance Ruffin | Mariners | Hendricks Sports | |
| Justin Ruggiano | Giants | Excel Sports Management | |
| Carlos Ruiz | Dodgers | Marc Kligman | |
| Dan Runzler | Red Sox | ISE Baseball | |
| Cameron Rupp | Indians | Octagon | |
| Chris Rusin | Rockies | Sports One Athlete Management | |
| Ashe Russel | Royals | Steve Canter Pro Edge Sports | |
| Addison Russell | Cubs | Boras Corporation | |
| Adam Russell | Orioles | Octagon | |
| James Russell | Tigers | Octagon | |
| Josh Rutledge | Giants | CAA Sports | |
| Jackson Rutledge | Nationals | MSM Sports | |
| Kyle Ryan | Cardinals | Frontline | |
| Brendan Ryan | Tigers | Wasserman | |
| Hyun-Jin Ryu | Blue Jays | Boras Corporation | |
| Marc Rzepczynski | Blue Jays | John Boggs & Associates | |
| CC Sabathia | Yankees | Roc Nation Sports | |
| Jerrud Sabourin | Indians | C.L. Rocks Corporation | |
| Takashi Saito | Diamondbacks | CAA Sports | Nez Balelo |
| Fernando Salas | Phillies | Paragon Sports International | |
| Jeff Salazar | Rays | Icon Sports Management | |
| Carlos Salazar | Braves | Reynolds Sports Management | |
| Danny Salazar | Yankees | Octagon | |
| Chris Sale | Braves | Jet Sports Management | |
| Jarrod Saltalamacchia | Tigers | ACES | |
| Jeff Samardzija | Giants | Wasserman | |
| Chris Sampson | Marlins | Hendricks Sports | |
| Keyvius Sampson | White Sox | Reynolds Sports Management | |
| Adrian Sampson | Rangers | Apex Baseball | |
| Alex Sanabia | Cubs | Paragon Sports International | |
| Brian Sanches | Royals | CAA Sports | Greg Landry |
| Anibal Sanchez | Nationals | Mato Sports Management | |
| Angel Sanchez | Padres | Platinum Sports | |
| Freddy Sanchez | Giants | Apex Baseball | |
| Gaby Sanchez | Mariners | Beverly Hills Sports Council | |
| Jonathan Sanchez | Royals | McNamara Baseball Group | |
| Gary Sanchez | Brewers | The MAS+ Agency | |
| Aaron Sanchez | Blue Jays | Boras Corporation | |
| Sixto Sanchez | Marlins | Boras Corporation | |
| Angel Sanchez | White Sox | C.L. Rocks Corporation | |
| Hector Sanchez | Giants | OL Baseball Group LLC | |
| Eduardo Sanchez | Tigers | MDR Sports Management | |
| Yolmer Sanchez | Mets | MVP Sports Group | |
| Tony Sanchez | Rangers | ACES | |
| Elier Sanchez | Octagon | ||
| Cord Sandberg | Phillies | Excel Sports Management | |
| Freddy Sandoval | Angels | John Boggs & Associates | |
| Pablo Sandoval | Giants | Beverly Hills Sports Council | |
| Jerry Sands | Giants | Excel Sports Management | |
| Miguel Sano | Angels | Cobb Eddy Sports Group | |
| Carlos Santana | Twins | Octagon | |
| Ervin Santana | Royals | Octagon | Jay Alou |
| Johan Santana | Blue Jays | GSE Worldwide | |
| Domingo Santana | Wasserman | Nicholas Chanock | |
| Danny Santana | Red Sox | Mato Sports Management | |
| Dennis Santana | Pirates | Optimum Baseball Associates | |
| Anthony Santander | Orioles | GSE Worldwide | |
| Ramon Santiago | Blue Jays | Beverly Hills Sports Council | |
| Hector Santiago | Mariners | Excel Sports Management | |
| Tony Santillan | Reds | Boras Corporation | |
| Sergio Santos | Yankees | Paragon Sports International | |
| Luis Sardinas | Nationals | Beverly Hills Sports Council | |
| Dennis Sarfate | Lagardere Sports | ||
| Josh Satin | Padres | MVP Sports Group | |
| Matt Sauer | Yankees | Paragon Sports International | |
| Joe Saunders | Mariners | GSE Worldwide | |
| Michael Saunders | Rockies | Meister Sports Management | |
| Warwick Saupold | Tigers | Ballplayers Agency | |
| Josh Sborz | Rangers | McNamara Baseball Group | |
| Rob Scahill | Cubs | Marc Kligman | |
| Logan Schafer | Orioles | Wasserman | |
| Jordan Schafer | Giants | ISE Baseball | |
| Tanner Scheppers | Rangers | GSE Worldwide | |
| Max Scherzer | Rangers | Boras Corporation | |
| Nate Schierholtz | Tigers | All Bases Covered | |
| Ryan Schimpf | Angels | Beverly Hills Sports Council | |
| Daniel Schlereth | Red Sox | ISE Baseball | |
| Travis Schlichting | Dodgers | Octagon | Lou Nero |
| Brian Schlitter | Mariners | Magnus Sports | |
| Clarke Schmidt | Yankees | Excel Sports Management | |
| Konrad Schmidt | Rangers | Phil Tannenbaum | |
| Brian Schneider | Phillies | CAA Sports | |
| Jonathan Schoop | Tigers | VC Sports Group | |
| Bo Schultz | Pirates | McNamara Baseball Group | |
| Skip Schumaker | Padres | CAA Sports | Nez Balelo |
| Kyle Schwarber | Phillies | Excel Sports Management | |
| Michael Schwimer | Blue Jays | Beverly Hills Sports Council | |
| Chris Schwinden | Mets | Big League Management Company, LLC | Brian Charles |
| Luke Scott | Blue Jays | PSI Sports Management | |
| Tayler Scott | Astros | PSI Sports Management | |
| Robby Scott | Diamondbacks | Meister Sports Management | |
| Evan Scribner | Rays | All Bases Covered | |
| Marco Scutaro | Giants | Magnus Sports | |
| Kyle Seager | Mariners | Jet Sports Management | |
| Corey Seager | Rangers | Boras Corporation | |
| Ross Seaton | Tigers | ISE Baseball | |
| Bobby Seay | Boras Corporation | ||
| Chris Seddon | Indians | Lagardere Sports | |
| Zack Segovia | Rockies | Turner Gary Sports | |
| Jean Segura | Orioles | CAA Sports | |
| Justin Sellers | Padres | GSE Worldwide | |
| Steve Selsky | Reds | Double Diamond Sports Management | |
| Marcus Semien | Rangers | Wasserman | |
| Antonio Senzatela | Rockies | Republik Sports | |
| Nick Senzel | White Sox | Boras Corporation | |
| Pedro Severino | Mariners | Wasserman | |
| Luis Severino | Mets | Rep 1 Baseball | Nelson Montes de Oca |
| Paul Sewald | Diamondbacks | SSG Baseball | |
| Richie Shaffer | Indians | ISE Baseball | |
| Colton Shaver | Astros | MSM Sports | |
| Joe Shaw | Mets | SSG Baseball | |
| Bryan Shaw | Angels | Rowley Sports Management | |
| Travis Shaw | Red Sox | Pro Star Management, Inc. | |
| Chris Shaw | White Sox | Excel Sports Management | |
| Ben Sheets | Braves | Excel Sports Management | Casey Close |
| Jimmie Sherfy | Dodgers | PSI Sports Management | |
| George Sherrill | Royals | Athletic Resource Management | |
| James Shields | White Sox | PSI Sports Management | |
| Scot Shields | Lagardere Sports | ||
| Charles Shirek | White Sox | CAA Sports | Peter Vescovo |
| Matt Shoemaker | Giants | ISE Baseball | |
| Brady Shoemaker | Marlins | Nello P. Gamberdino II | |
| Kelly Shoppach | Indians | Lagardere Sports | |
| Chasen Shreve | Rockies | CAA Sports | |
| Kevin Siegrist | Pirates | GSE Worldwide | |
| Moises Sierra | Marlins | Beverly Hills Sports Council | |
| Yasiel Sierra | Octagon | ||
| Yaisel Sierra | Dodgers | Magnus Sports | |
| Carlos Silva | Red Sox | Magnus Sports | |
| Alfredo Silverio | Dodgers | O'Connell Sports Management | |
| Shae Simmons | Cubs | Platinum Sports | |
| Andrelton Simmons | Cubs | ISE Baseball | Troy Caradonna |
| Alfredo Simon | Reds | MVP Sports Group | |
| Hayden Simpson | Cubs | Frontline | |
| Brady Singer | Royals | Excel Sports Management | |
| Brett Sinkbeil | Pirates | Frontline | |
| Tony Sipp | Nationals | The Bledsoe Agency | |
| Kraig Sitton | Rockies | Primo Sports Group | |
| Grady Sizemore | Rays | CAA Sports | Joe Urbon |
| Scott Sizemore | Nationals | ACES | |
| Tyler Skaggs | Angels | CAA Sports | |
| Kyle Skipworth | Reds | Paragon Sports International | |
| Matt Skole | White Sox | Jet Sports Management | |
| Anthony Slama | Twins | The L. Warner Companies, Inc. | |
| Doug Slaten | Pirates | Paragon Sports International | |
| Austin Slater | Orioles | Ballengee Group | |
| Kevin Slowey | Phillies | ISE Baseball | |
| Devin Smeltzer | Marlins | ISE Baseball | |
| Carson Smith | Red Sox | ISE Baseball | |
| Kevan Smith | Braves | Fusion Sports Agency | |
| Caleb Smith | Pirates | Ballengee Group | |
| Riley Smith | Indians | Ballengee Group | |
| Will Smith | Dodgers | Apex Baseball | |
| Joe Smith | Twins | Excel Sports Management | |
| Nate Smith | Angels | MSM Sports | |
| Seth Smith | Orioles | Aegis Sports Management | |
| Burch Smith | Orioles | GSE Worldwide | |
| Dominic Smith | Reds | Roc Nation Sports | |
| Mallex Smith | Blue Jays | Reynolds Sports Management | |
| Will Smith | Royals | CAA Sports | |
| Drew Smith | Mets | SSG Baseball | |
| Dwight Smith Jr. | White Sox | Wasserman | |
| Justin Smoak | The Bledsoe Agency | ||
| Josh Smoker | Pirates | Ballengee Group | |
| Jake Smolinski | Rays | Apex Baseball | |
| Drew Smyly | Cubs | Frontline | |
| Ian Snell | Dodgers | Joe Sroba | |
| Blake Snell | Giants | Boras Corporation | |
| Travis Snider | Braves | CAA Sports | Joe Urbon |
| Jack Snodgrass | Giants | Frye McCann Sports | |
| Scott Snodgress | White Sox | KVA Sports | |
| Chris Snyder | Rangers | Lagardere Sports | |
| Brandon Snyder | Nationals | Reynolds Sports Management | |
| Chad Sobotka | Brewers | ISE Baseball | |
| Miguel Socolovich | Braves | SPS Sports Group | |
| Eric Sogard | Cubs | Octagon | |
| Donovan Solano | Padres | Primetime Sports Group | |
| Yangervis Solarte | Braves | GSE Worldwide | |
| Jorge Soler | Braves | ACES | |
| Sammy Solis | Padres | CAA Sports | |
| Ah-seop Son | Beverly Hills Sports Council | ||
| Andy Sonnanstine | Cubs | Beverly Hills Sports Council | |
| Joakim Soria | Blue Jays | Oscar Suarez | |
| Alfonso Soriano | Yankees | ISE Baseball | |
| Rafael Soriano | Blue Jays | Octagon | Ulises Cabrera |
| Mike Soroka | White Sox | ISE Baseball | |
| Edmundo Sosa | Phillies | Octagon | |
| Henry Sosa | Astros | ISE Baseball | |
| Geovany Soto | White Sox | Rep 1 Baseball | |
| Gregory Soto | Orioles | Munger English Sports Management | |
| Neftali Soto | Nationals | The MAS+ Agency | |
| Juan Soto | Yankees | Boras Corporation | |
| Elliot Soto | Angels | Marc Kligman | |
| Justin Souza | Athletics | Jason Hoffman | |
| Steven Souza Jr. | Dodgers | Moye Sports Associates | |
| Jeremy Sowers | Indians | CAA Sports | |
| Denard Span | Rays | All Bases Covered | |
| Cory Spangenberg | Padres | Jet Sports Management | |
| Alex Speas | Red Sox | Vanguard Sports Group | |
| Josh Spence | Yankees | Octagon | |
| Ryan Spilborghs | Rangers | Boras Corporation | |
| Shea Spitzbarth | Reds | ACES | |
| Chorye Spoone | Red Sox | The Sparta Group | |
| George Springer | Astros | Excel Sports Management | |
| Zeke Spruill | Rangers | BBI Sports Group | |
| Locke St. John | Twins | Gaeta Sports Management | |
| Deon Stafford | Pirates | Reynolds Sports Management | |
| Matt Stairs | BASH Baseball | ||
| Mitch Stallings | Braves | C.L. Rocks Corporation | |
| Eric Stamets | Blue Jays | MSM Sports | |
| Craig Stammen | Padres | Paragon Sports International | |
| Ryne Stanek | Mets | MVP Sports Group | |
| Daniel Stange | Padres | Lagardere Sports | |
| Teddy Stankiewicz | Red Sox | BBI Sports Group | |
| Giancarlo Stanton | Yankees | Wasserman | |
| Bubba Starling | Royals | Boras Corporation | |
| Max Stassi | White Sox | Wasserman | |
| Tim Stauffer | Diamondbacks | Shapiro, Robinson, & Associates | |
| Josh Staumont | Cubs | Excel Sports Management | |
| Nick Stavinoha | Nationals | Lagardere Sports | |
| Drew Steckenrider | Athletics | True Gravity Baseball | |
| Trevor Stephan | Indians | MSM Sports | |
| Tyler Stephenson | Reds | ACES | |
| Robert Stephenson | Angels | Apex Baseball | |
| Mitch Stetter | Angels | Turner Gary Sports | |
| Andrew Stevenson | Twins | Ballengee Group | |
| Brock Stewart | Twins | Sterling Sports Management | |
| Chris Stewart | Padres | James A. Kuzmich, PLLC | |
| Ian Stewart | Nationals | Reynolds Sports Management | |
| Zach Stewart | Orioles | Lagardere Sports | |
| Kohl Stewart | Royals | Frontline | |
| D.J. Stewart | Mets | Boras Corporation | |
| Christin Stewart | Red Sox | Boras Corporation | |
| Jake Stinnett | Cubs | The Bledsoe Agency | |
| Josh Stinson | Pirates | Moye Sports Associates | |
| Matt Stites | Diamondbacks | Platinum Sports | |
| Drew Storen | Royals | CAA Sports | |
| Trevor Story | Red Sox | Excel Sports Management | J.D. Smart |
| Eric Stout | Cubs | SSG Baseball | |
| Matt Strahm | Phillies | ACES | |
| Dan Straily | Cubs | Apex Baseball | Paul Cobbe |
| Stephen Strasburg | Nationals | Boras Corporation | |
| Myles Straw | Indians | Frontline | |
| Huston Street | Angels | Self-Represented | |
| Hunter Strickland | Angels | Sports One Athlete Management | |
| Ryan Strieby | Tigers | Bo McKinnis | |
| Ross Stripling | Athletics | Beverly Hills Sports Council | |
| Marcus Stroman | Yankees | Klutch Sports | |
| Pedro Strop | Cubs | Movement Management Group | |
| Drew Stubbs | Rangers | Lagardere Sports | |
| Eric Stults | Dodgers | Pro Star Management, Inc. | |
| Daniel Stumpf | Tigers | Full Circle Sports Management | |
| Mike Stutes | Phillies | MVP Sports Group | |
| Sean Stutzman | Astros | SSG Baseball | |
| Jose Suarez | Angels | ISE Baseball | |
| Albert Suarez | Orioles | GSE Worldwide | |
| Eugenio Suarez | Diamondbacks | Octagon | |
| Jesus Sucre | Rays | Elite Sports Group | |
| Cory Sullivan | Dodgers | Meister Sports Management | |
| Jeff Suppan | Padres | All Bases Covered | |
| Andrew Susac | Pirates | GSE Worldwide | |
| Brent Suter | Reds | Diamond Sports Management | |
| Wladimir Sutil | Diamondbacks | Octagon | |
| Ichiro Suzuki | Mariners | John Boggs & Associates | |
| Kurt Suzuki | Angels | ALIGND Sports Agency | Formerly BHSC |
| Jordan Swagerty | Cardinals | Beverly Hills Sports Council | |
| Dansby Swanson | Cubs | Excel Sports Management | |
| Erik Swanson | Blue Jays | Pro Star Management, Inc. | |
| Anthony Swarzak | Royals | Jet Sports Management | |
| Ryan Sweeney | Twins | Reynolds Sports Management | |
| Darnell Sweeney | Pirates | Reynolds Sports Management | |
| Blake Swihart | Nationals | Klutch Sports | |
| Nick Swisher | Yankees | MVP Sports Group | Formerly Pro Star |
| Noah Syndergaard | Indians | CAA Sports | |
| Thomas Szapucki | Giants | SportsMeter | |
| Matt Szczur | Cardinals | Turner Gary Sports | |
| So Taguchi | Phillies | Octagon | |
| Hisanori Takahashi | Rockies | Wasserman | |
| Mitch Talbot | Indians | True Gravity Baseball | |
| Brian Tallet | Padres | CAA Sports | Jeff Berry |
| Kensuke Tanaka | Giants | Octagon | |
| Masahiro Tanaka | Excel Sports Management | ||
| Clayton Tanner | Orioles | ACES | |
| Raimel Tapia | Brewers | MVP Sports Group | |
| Dillon Tate | Blue Jays | CAA Sports | |
| Yoshinori Tateyama | Yankees | Octagon | |
| Fernando Tatis | Gary Goodman | ||
| Fernando Tatis Jr. | Padres | MVP Sports Group | |
| Mike Tauchman | Cubs | Meister Sports Management | |
| Leodys Taveras | Rangers | Rep 1 Baseball | Nelson Montes de Oca |
| Blake Taylor | Rangers | SSG Baseball | |
| Chris Taylor | Dodgers | Meister Sports Management | |
| Ben Taylor | Indians | Ballengee Group | |
| Michael A. Taylor | Pirates | ALIGND Sports Agency | |
| Beau Taylor | Athletics | Ballplayers Agency | |
| Tyrone Taylor | Mets | Wasserman | |
| Michael Taylor | White Sox | CAA Sports | |
| Junichi Tazawa | Cubs | CAA Sports | Nez Balelo |
| Taylor Teagarden | Cubs | Boras Corporation | |
| Mark Teahen | Rangers | CAA Sports | Jeff Berry |
| Tim Tebow | Mets | CAA Sports | |
| Julio Teheran | Orioles | Mato Sports Management | |
| Mark Teixeira | Yankees | Excel Sports Management | Casey Close |
| Miguel Tejada | Marlins | ISE Baseball | |
| Ruben Tejada | White Sox | Primetime Sports Group | |
| Robinson Tejeda | Indians | Don Nomura | |
| Oscar Tejeda | Pirates | GSE Worldwide | |
| Nick Tepesch | Tigers | Frontline | |
| Joey Terdoslavich | Pirates | TWC Sports | |
| Marcus Thames | Yankees | Excel Sports Management | Casey Close |
| Eric Thames | Athletics | Apex Baseball | |
| Joe Thatcher | Cubs | Platinum Sports | |
| Dale Thayer | Braves | O'Connell Sports Management | |
| Ryan Theriot | Giants | Beverly Hills Sports Council | |
| Josh Thole | Yankees | Excel Sports Management | |
| Brad Thomas | Tigers | Full Circle Sports Management | |
| Clete Thomas | Phillies | ISE Baseball | |
| Ian Thomas | Dodgers | Diakon Baseball Group | David Pasti |
| Jim Thome | Orioles | ISE Baseball | |
| Carl Thomore | Rockies | Pro Agents, Inc. | |
| Daryl Thompson | Mets | The Sparta Group | |
| Rich Thompson | Angels | Rowley Sports Management | |
| Aaron Thompson | Twins | Hendricks Sports | |
| Darryl Thompson | Reds | The Sparta Group | |
| Trayce Thompson | Cubs | Wasserman | |
| Ryan Thompson | Diamondbacks | Northwest Sports Management Group | |
| Dom Thompson-Williams | Mariners | The L. Warner Companies, Inc. | |
| Tyler Thornburg | Twins | ACES | |
| Matt Thornton | Padres | Diamond Sports Management | |
| Lewis Thorpe | Twins | Paragon Sports International | |
| Andrew Thurman | Braves | GSE Worldwide | |
| Chris Tillman | Rangers | Beverly Hills Sports Council | |
| Charles Tilson | White Sox | ISE Baseball | |
| Jess Todd | Red Sox | Octagon | |
| Andrew Toles | Dodgers | Magnus Sports | |
| Shawn Tolleson | Rangers | Excel Sports Management | |
| Steven Tolleson | Royals | Hendricks Sports | |
| Yasmany Tomas | Nationals | Octagon | Jay Alou |
| Brett Tomko | Royals | Full Circle Sports Management | |
| Josh Tomlin | Braves | Meister Sports Management | |
| Kelby Tomlinson | Rockies | Sports Pro Services | Danny Burgers |
| Michael Tonkin | Twins | Wasserman | Joel Wolfe |
| Yorvit Torrealba | Cubs | MDR Sports Management | |
| Andres Torres | Red Sox | ACES | |
| Carlos Torres | Giants | KVA Sports | |
| Alex Torres | DJ Rengifo Y Associates LLC | ||
| Riccio Torrez | Rays | Octagon | |
| Touki Toussaint | White Sox | Boras Corporation | |
| Wilfredo Tovar | Twins | The MAS+ Agency | |
| Ezequiel Tovar | Rockies | Rimas Sports | |
| J.R. Towles | Cardinals | C.L. Rocks Corporation | |
| Chad Tracy | Angels | Octagon | |
| Matt Tracy | Blue Jays | Sports Pro Services | Danny Burgers |
| Taylor Trammell | Yankees | Jet Sports Management | |
| Nick Travieso | Reds | Gavin Kahn | |
| Devon Travis | Blue Jays | Arland Sports | |
| Matt Treanor | Dodgers | Wasserman | |
| Blake Treinen | Dodgers | Apex Baseball | Adam Karon |
| Andrew Triggs | Red Sox | CAA Sports | |
| Carlos Triunfel | Reds | Boras Corporation | |
| Ramon Troncoso | Dodgers | MDR Sports Management | |
| Nick Tropeano | Rangers | The Bledsoe Agency | |
| Mike Trout | Angels | Landis Baseball Group | |
| Mark Trumbo | Orioles | Wasserman | |
| Yoshitomo Tsutsugo | Giants | Wasserman | |
| Preston Tucker | Braves | ISE Baseball | |
| Cole Tucker | Angels | MVP Sports Group | |
| Kyle Tucker | Astros | Excel Sports Management | |
| Ryan Tucker | Dodgers | Wasserman | |
| Matt Tuiasosopo | Braves | GSE Worldwide | |
| Sam Tuivailala | Mariners | Apex Baseball | |
| Troy Tulowitzki | Yankees | TWC Sports | |
| Nik Turley | White Sox | ISE Baseball | |
| Kylin Turnbull | Nationals | PSI Sports Management | |
| Justin Turner | Mariners | GEM Agency | |
| Jacob Turner | Tigers | Boras Corporation | |
| Trea Turner | Phillies | CAA Sports | |
| Koji Uehara | Cubs | ISE Baseball | |
| Dan Uggla | Nationals | Turn 2 Sports Management | |
| Justin Upton | Mariners | Reynolds Sports Management | |
| Melvin Upton, Jr. | Indians | Reynolds Sports Management | |
| Jose Urena | Rangers | Rep 1 Baseball | |
| Luis Urias | Mariners | CAA Sports | |
| Julio Urias | Dodgers | Boras Corporation | |
| Juan Uribe | Indians | Magnus Sports | |
| Jose Urquidy | Astros | Full Circle Sports Management | |
| Giovanny Urshela | Braves | Rep 1 Baseball | |
| Chase Utley | Dodgers | Wasserman | |
| Chris Valaika | Cubs | Wasserman | |
| Luis Valbuena | Angels | Elite Sports Group | |
| Raul Valdes | Blue Jays | Para Sports & Entertainment Group, LLC | |
| Jordany Valdespin | Twins | Ballplayers Agency | |
| Jeudy Valdez | Padres | California Sports Management | |
| Jose Valdez | Giants | Optimum Baseball Associates | |
| Wilson Valdez | Marlins | Rep 1 Baseball | |
| Danny Valencia | Orioles | MVP Sports Group | |
| Jesmuel Valentin | Phillies | SportsMeter | |
| Philippe Valiquette | Mariners | Double Diamond Sports Management | |
| Chase Vallot | Royals | Ballengee Group | |
| Jose Valverde | Nationals | Magnus Sports | |
| John Van Benschoten | Padres | Pro Star Management, Inc. | |
| Rick van den Hurk | Ballengee Group | ||
| Loek Van Mil | Twins | CAA Sports | Peter Vescovo |
| Scott Van Slyke | Marlins | James A. Kuzmich, PLLC | |
| Kevin Vance | Diamondbacks | Orpheus Sports | |
| Josh VanMeter | Mets | Sterling Sports Management | |
| Kennys Vargas | Tigers | Rep 1 Baseball | |
| Jason Vargas | Mets | CAA Sports | Nez Balelo |
| Jason Varitek | Red Sox | Boras Corporation | |
| Seth Varner | Reds | Pro Star Management, Inc. | |
| Daulton Varsho | Blue Jays | ISE Baseball | |
| Anthony Varvaro | Red Sox | Meister Sports Management | |
| Esmerling Vasquez | Twins | ACES | |
| Virgil Vasquez | Padres | Jim McDowell | |
| Christian Vasquez | Red Sox | MDR Sports Management | |
| Christian Vazquez | Twins | MDR Sports Management | |
| Javier Vazquez | Marlins | ACES | |
| Felipe Vazquez | Pirates | Magnus Sports | Last name legally changed from Rivero (4-9-18). |
| Donald Veal | Rangers | Lagardere Sports | |
| Vince Velasquez | Pirates | Boras Corporation | |
| Eugenio Velez | Rays | Wasserman | |
| Will Venable | Dodgers | Turner Gary Sports | |
| Pat Venditte | Marlins | Marc Kligman | |
| Jonny Venters | Nationals | Jet Sports Management | |
| Jose Veras | Astros | Magnus Sports | |
| Drew VerHagen | Cardinals | ISE Baseball | |
| Justin Verlander | Astros | ISE Baseball | |
| Logan Verrett | Nationals | GSE Worldwide | |
| Dayan Viciedo | White Sox | Boras Corporation | |
| Shane Victorino | Cubs | John Boggs & Associates | Formerly ACES. |
| Angel Villalona | Giants | Boras Corporation | |
| Christian Villanueva | Cubs | Munger English Sports Management | |
| Carlos Villanueva | Padres | ISE Baseball | |
| Jonathan Villar | Mariners | Wasserman | |
| Zach Vincej | Orioles | Elite Sports Group | |
| Nick Vincent | Tigers | PSI Sports Management | |
| Jace Vines | Royals | SSG Baseball | |
| Kolbrin Vitek | Red Sox | Pro Star Management, Inc. | |
| Josh Vitters | Rockies | CAA Sports | Nez Balelo |
| Arodys Vizcaino | Royals | ISE Baseball | |
| Omar Vizquel | Blue Jays | Wasserman | |
| Daniel Vogelbach | Blue Jays | ISE Baseball | |
| Ryan Vogelsong | Twins | Dave Meier | |
| Stephen Vogt | Athletics | All Bases Covered | |
| Luke Voit | Mets | Excel Sports Management | |
| Edinson Volquez | Rangers | Wasserman | |
| Chris Volstad | White Sox | Moye Sports Associates | |
| Joey Votto | Blue Jays | MVP Sports Group | |
| Michael Wacha | Royals | CAA Sports | |
| Tsuyoshi Wada | Cubs | Octagon | |
| Brandon Waddell | Cardinals | Platinum Sports | |
| Lamonte Wade | Twins | Ballengee Group | |
| Cory Wade | Mets | Excel Sports Management | Casey Close |
| Mark Wagner | Red Sox | CAA Sports | |
| Neil Wagner | Mets | Munsey Sports Management | |
| Adam Wainwright | Cardinals | Aegis Sports Management | |
| Tim Wakefield | Red Sox | Meister Sports Management | |
| Jordan Walden | Braves | Lagardere Sports | Kevin Hubbard |
| Marcus Walden | Mariners | Full Circle Sports Management | |
| Christian Walker | Diamondbacks | Martini Sports Management | |
| Neil Walker | Phillies | Excel Sports Management | |
| Tyler Walker | GSE Worldwide | ||
| Taijuan Walker | Phillies | Excel Sports Management | |
| Keenyn Walker | White Sox | GSE Worldwide | |
| Jeremy Walker | Phillies | ACES | |
| Brett Wallace | Padres | MVP Sports Group | Formerly BHSC |
| Chad Wallach | Angels | PSI Sports Management | |
| Jared Walsh | White Sox | ISE Baseball | |
| P.J. Walters | Nationals | Aspire Sports Management | |
| Zach Walters | Royals | ACES | |
| Chien-Ming Wang | Royals | Octagon | |
| Wei-Chung Wang | Pirates | Boras Corporation | |
| Brian Ward | Dodgers | Ballplayers Agency | |
| Adam Warren | Yankees | Full Circle Sports Management | |
| Art Warren | Yankees | KHG Sports Management | |
| Drew Waters | Royals | Jet Sports Management | |
| Nolan Watson | Royals | Pro Star Management, Inc. | |
| Tony Watson | Giants | Boras Corporation | |
| Casey Weathers | Indians | ISE Baseball | |
| Jered Weaver | Padres | Boras Corporation | |
| Luke Weaver | Yankees | Boras Corporation | |
| Braden Webb | Brewers | MSM Sports | |
| Tyler Webb | Twins | Beverly Hills Sports Council | |
| Jacob Webb | Orioles | KHG Sports Management | |
| Logan Webb | Giants | ACES | |
| Brandon Webb | Rangers | MSM Sports | |
| Ryan Webb | Giants | Wasserman | |
| Daniel Webb | White Sox | ACES | |
| Thad Weber | Blue Jays | Frontline | |
| Ryan Weber | Yankees | The L. Warner Companies, Inc. | |
| Allen Webster | Nationals | Wasserman | |
| Jemile Weeks | Cubs | Excel Sports Management | |
| Rickie Weeks | Rays | GSE Worldwide | |
| Nick Weglarz | Rays | Ballplayers Agency | |
| Kyle Weiland | Astros | Frontline | |
| Robbie Weinhardt | Tigers | Icon Sports Management | |
| Duke Welker | Pirates | BBI Sports Group | |
| Todd Wellemeyer | Cubs | Meister Sports Management | |
| Kip Wells | Angels | C.L. Rocks Corporation | |
| Randy Wells | Rangers | ACES | |
| Vernon Wells | Yankees | GSE Worldwide | |
| Nick Wells | Nationals | Ballengee Group | |
| Joey Wentz | Pirates | ACES | |
| Andrew Werner | Athletics | BBI Sports Group | |
| Jayson Werth | Mariners | Boras Corporation | |
| Jake Westbrook | Cardinals | Shapiro, Robinson, & Associates | |
| Aaron Westlake | Tigers | Octagon | |
| Matt Whatley | Rangers | SSG Baseball | |
| Dan Wheeler | Royals | Diamond Sports Management | |
| Tim Wheeler | Rockies | Frontline | |
| Zack Wheeler | Phillies | Jet Sports Management | |
| Zelous Wheeler | Yankees | Martini Sports Management | |
| Jason Wheeler | Orioles | CAA Sports | |
| Max White | Rockies | Jet Sports Management | |
| Tyler White | Mets | Ballengee Group | |
| Boomer White | Padres | SSG Baseball | |
| Evan White | Angels | True Gravity Baseball | |
| Owen White | Rangers | Jet Sports Management | |
| Sean White | Angels | O'Connell Sports Management | |
| Alex White | Braves | CSE | |
| Matt Whitehouse | Indians | SSG Baseball | |
| Josh Whitesell | Octagon | ||
| Eli Whiteside | Cubs | Pro Star Management, Inc. | |
| Chase Whitley | Braves | Rep 1 Baseball | Nate Heisler |
| Garrett Whitley | Brewers | Ballengee Group | |
| Taylor Widener | Braves | Beverly Hills Sports Council | |
| Joe Wieland | Athletics | Apex Baseball | |
| Matt Wieters | Cardinals | Boras Corporation | |
| Ty Wigginton | Marlins | ACES | |
| Tom Wilhelmsen | Padres | Steve Canter Pro Edge Sports | |
| Aaron Wilkerson | Dodgers | C.L. Rocks Corporation | |
| Steve Wilkerson | Orioles | Ballengee Group | |
| Josh Wilkie | Nationals | CSE | |
| Jerome Williams | Cardinals | KVA Sports | |
| Taylor Williams | Mariners | Northwest Sports Management Group | |
| Justin Williams | Phillies | Roc Nation Sports | |
| Ronnie Williams | Cardinals | Paragon Sports International | |
| Nick Williams | White Sox | Boras Corporation | |
| Trevor Williams | Nationals | John Boggs & Associates | |
| Mac Williamson | Nationals | CAA Sports | |
| Josh Willingham | Royals | Apex Baseball | |
| Dontrelle Willis | Brewers | Apex Baseball | |
| Reggie Willits | Angels | Elite Sports Group | |
| Bobby Wilson | Tigers | Jet Sports Management | |
| Brian Wilson | Dodgers | MVP Sports Group | Formerly BHSC |
| C.J. Wilson | Angels | BASH Baseball | |
| Jack Wilson | Braves | PSI Sports Management | |
| Josh Wilson | Indians | Lagardere Sports | |
| Russell Wilson | Yankees | Frontline | |
| Zach Wilson | Yankees | Boras Corporation | |
| Tyler Wilson | Orioles | Meister Sports Management | |
| Steven Wilson | White Sox | Wasserman | |
| Justin Wilson | Reds | ACES | |
| Alex Wilson | Tigers | ISE Baseball | |
| Tom Windle | Phillies | ISE Baseball | |
| David Winfree | Diamondbacks | The Sparta Group | |
| Trey Wingenter | Cubs | Ballengee Group | |
| Daniel Winkler | White Sox | ALIGND Sports Agency | |
| Kyle Winkler | Angels | CAA Sports | Peter Vescovo |
| Randy Winn | Orioles | Landis Baseball Group | |
| Cole Winn | Rangers | Boras Corporation | |
| Patrick Wisdom | Cubs | Apex Baseball | |
| Dewayne Wise | Turner Gary Sports | ||
| Chris Withrow | Royals | Excel Sports Management | |
| Asher Wojciechowski | Mariners | ISE Baseball | |
| Randy Wolf | Tigers | Wasserman | |
| Tony Wolters | Twins | GSE Worldwide | |
| Jake Wong | Cubs | ACES | |
| Kean Wong | White Sox | PSI Sports Management | |
| Kolten Wong | Diamondbacks | PSI Sports Management | |
| Blake Wood | Angels | Sports One Athlete Management | |
| Brandon Wood | Orioles | Lagardere Sports | |
| Kerry Wood | Cubs | ISE Baseball | |
| Travis Wood | Tigers | Frontline | |
| Eric Wood | Pirates | Ballplayers Agency | |
| Hunter Wood | Twins | ALIGND Sports Agency | |
| Alex Wood | Athletics | ACES | |
| Jake Woodford | Pirates | Excel Sports Management | |
| Brandon Workman | Rangers | CAA Sports | Jeff Berry |
| Vance Worley | Mets | Wasserman | |
| Danny Worth | Astros | Beverly Hills Sports Council | |
| David Wright | Mets | ACES | |
| Jamey Wright | Dodgers | Excel Sports Management | Casey Close |
| Wesley Wright | Rangers | Reynolds Sports Management | |
| Mike Wright | White Sox | ACES | |
| Daniel Wright | Reds | Icon Sports Management | |
| Kyle Wright | Royals | CAA Sports | |
| Steven Wright | Pirates | Ballengee Group | |
| Michael Wuertz | Marlins | Beverly Hills Sports Council | |
| Austin Wynns | Reds | Ballplayers Agency | |
| Jimmy Yacabonis | Mets | Full Circle Sports Management | |
| Shun Yamaguchi | Giants | Wasserman | |
| Jordan Yamamoto | Dodgers | PSI Sports Management | |
| Yoshinobu Yamamoto | Dodgers | Wasserman | |
| Ryan Yarbrough | Blue Jays | Excel Sports Management | |
| Kirby Yates | Rangers | Beverly Hills Sports Council | |
| Christian Yelich | Brewers | Paragon Sports International | |
| Jose Yepez | Braves | Elite Sports Group | |
| Micheal Ynoa | Athletics | Wasserman | |
| Gabriel Ynoa | Orioles | GSE Worldwide | |
| Suk-min Yoon | Orioles | Boras Corporation | |
| Kevin Youkilis | Pro Star Management, Inc. | ||
| Chris Young | Angels | CAA Sports | |
| Chris Young | Padres | Jon Fetterolf | |
| Delmon Young | Orioles | Wasserman | |
| Delwyn Young | Nationals | Matt Colleran | |
| Eric Young | Orioles | MVP Sports Group | |
| Michael Young | Dodgers | MVP Sports Group | |
| Alex Young | Diamondbacks | Wasserman | |
| Alex Young | Mets | Wasserman | |
| Mark Zagunis | Cubs | The L. Warner Companies, Inc. | |
| Mike Zagurski | Cubs | Marc Kligman | |
| Carlos Zambrano | Phillies | Magnus Sports | |
| Robert Zarate | Indians | McNamara Baseball Group | |
| Clay Zavada | Cardinals | Meister Sports Management | |
| Josh Zeid | Cardinals | Turner Gary Sports | |
| Brad Ziegler | Diamondbacks | Icon Sports Management | |
| Kyle Zimmer | Reds | ISE Baseball | |
| Bradley Zimmer | Rockies | ISE Baseball | |
| Ryan Zimmerman | Nationals | CAA Sports | |
| Jordan Zimmermann | Tigers | ISE Baseball | |
| Barry Zito | Athletics | Boras Corporation | |
| Ben Zobrist | Cubs | Octagon | |
| Joel Zumaya | Twins | Hendricks Sports | |
| Mike Zunino | Indians | Jet Sports Management | |
| Tony Zych | Yankees | ISE Baseball |