• A Atlanta Chiefs | Atlanta United...
• B Bethlehem Steel | Brooklyn Wanderers | Baltimore Bays | Boston Wonder Workers | Boston Minutemen | Baltimore Comets | Boston Beacons | Boston Bears | Brooklyn Hispano | Brooklyn Bridegrooms...
• C Chicago Sting | California Surf | Connecticut Bicentennials | Cleveland Stokers | Chicago Mustangs | Calgary Boomers | Chicago Spurs | Colorado Caribous | Columbus Crew | Chicago Fire...
• D Dallas Tornado | Detroit Express | Denver Dynamos | Detroit Cougars | D.C. United...
• E Edmonton Drillers | Erie A.A....
• F Fort Lauderdale Strikers | Fall River Marksmen | Fall River FC | Fleisher Yarn | Fall River Rovers | FC Cincinnati | FC Dallas...
• G
• H Houston Hurricane | Houston Stars | Hakoah All-Stars | Holyoke Falcos | Houston Dynamo | Hartford Americans...
• I Indiana Flooring | IRT Rangers...
• J Jersey City Celtics | Jersey City (ASL)...
• K Kansas City Spurs...
• L Los Angeles Aztecs | Los Angeles Wolves | Las Vegas Quicksilvers | LA Galaxy | Los Angeles FC...
• M Minnesota Kicks | Miami Toros | Montreal Manic | Memphis Rogues | Montreal Olympique | Minnesota Strikers | Montreal Impact | Miami Fusion | Minnesota United FC...
• N New York Cosmos | New England Tea Men | New Bedford Whalers | New York Giants (1923-1930) | New York Generals | Newark Skeeters | New York Field Club | New York Hakoah | Newark Americans | New York Americans...
• O Oakland Clippers | Oakland Stompers | Orlando City SC...
• P Portland Timbers | Pawtucket Rangers | Philadelphia Atoms | Providence Clamdiggers | Philadelphia Fury | Philadelphia Spartans | Philadelphia Field Club | Pittsburgh Phantoms | Paterson FC | Philadelphia Centennials...
• Q Queens Bohemians...
• R Rochester Lancers | Real Salt Lake...
• S San Jose Earthquakes | Seattle Sounders | St. Louis Stars | San Diego Sockers | San Diego Toros | San Diego Jaws | San Antonio Thunder | Shawsheen Indians | Springfield Babes | San Francisco Gales...
• T Toronto Blizzard | Tampa Bay Rowdies | Tulsa Roughnecks | Toronto Falcons | Team Hawaii | Team America | Todd Shipyard | Toronto City | Tampa Bay Mutiny | Toronto FC[b]...
• U
• V Vancouver Whitecaps | Vancouver Royals | Victoria Hungaria...
• W Washington Diplomats | Washington Darts | Washington Whips | Washington Senators...
• X
• Y
• Z