All sports: 2021 season
- Atlanta United 2
- Atlanta United FC
- Austin Bold FC
- Austin FC
- Baltimore Orioles
- Birmingham Legion FC
- Boston Red Sox
- CF Montréal
- California United Strikers FC
- Charleston Battery
- Charlotte Independence
- Chattanooga Red Wolves SC
- Chicago Fire FC
- Chicago Red Stars
- Cincinnati Reds
- Colorado Rapids
- Columbus Crew
- D.C. United
- Detroit Tigers
- El Paso Locomotive FC
- FC Cincinnati
- FC Dallas
- FC Tucson
- FC Tulsa
- Forward Madison FC
- Greenville Triumph SC
- Hartford Athletic
- Houston Astros
- Houston Dash
- Houston Dynamo FC
- Indy Eleven
- Inter Miami CF
- Kansas City NWSL
- LA Galaxy
- Los Angeles Angels
- Los Angeles Dodgers
- Los Angeles FC
- Los Angeles Force
- Louisville City FC
- Memphis 901 FC
- Miami FC
- Michigan Stars FC
- Milwaukee Brewers
- Minnesota United FC
- NJ/NY Gotham FC
- Nashville SC
- New England Revolution
- New England Revolution II
- New York City FC
- New York Mets
- New York Red Bulls
- North Carolina Courage
- North Carolina FC
- North Texas SC
- OKC Energy FC
- OL Reign
- Oakland Athletics
- Oakland Roots SC
- Orange County SC
- Orlando City SC
- Orlando Pride
- Pensacola Blue Wahoos
- Philadelphia Union
- Phoenix Rising FC
- Pittsburgh Riverhounds SC
- Portland Thorns FC
- Portland Timbers
- Racing Louisville FC
- Real Salt Lake
- Richmond Kickers
- Rio Grande Valley FC Toros
- Sacramento Republic FC
- San Antonio FC
- San Diego Loyal SC
- San Jose Earthquakes
- Seattle Sounders FC
- Sporting Kansas City
- Sporting Kansas City II
- Stumptown AC
- Tampa Bay Rowdies
- Tormenta FC
- Toronto FC
- Toronto FC II
- Union Omaha
- Vancouver Whitecaps FC
- Washington Spirit