| 1997 | Kansas City Wiz became Kansas City Wizards |
| 1998 | Chicago Fire began play |
| 1998 | Miami Fusion began play |
| | |
| 2000 | San Jose Clash became San Jose Earthquakes |
| 2001 | Miami Fusion disbanded |
| 2001 | Tampa Bay Mutiny disbanded |
| 2005 | Dallas Burn became FC Dallas |
| 2005 | Chivas USA began play |
| 2005 | Real Salt Lake began play |
| 2005 | San Jose Earthquakes disbanded |
| 2006 | MetroStars became New York Red Bulls |
| 2006 | Houston Dynamo began play |
| 2007 | Toronto FC began play |
| 2008 | San Jose Earthquakes began play again |
| 2009 | Seattle Sounders began play |
| | |
| 2010 | Philadelphia Union began play |
| 2011 | Kansas City Wizards became Sporting Kansas City |
| 2011 | Portand Timbers began play |
| 2012 | Montreal Impact began play |
| 2014 | Chivas USA disbanded |
| 2015 | New York City FC began play |
| 2015 | Orlando City began play |
| 2017 | Atlanta United began play |
| 2017 | Minnesota United began play |
| 2018 | Los Angeles FC began play |
| 2019 | FC Cincinnati began play |
| | |
| 2020 | Inter Miami FC began play |
| 2020 | Nashville SC began play |
| 2021 | Austin FC began play |
| 2021 | Montreal Impact became CF Montreal |
| 2022 | Charlotte FC began play |
| 2023 | St Louis City SC began play |
| |
| List of abbreviations used in other pages: |
| Atlanta | Atl | Atlanta United (2017 - present) |
| Austin | Aus | Austin FC (2021 - present) |
| Charlotte | Cha | Charlotte FC (2022 - present) |
| Chicago | Chi | Chicago Fire (1998 - present) |
| Chivas USA | Chv | Chivas USA (2005 - 2014) |
| Cincinnati | Cin | FC Cincinnati (2019 - present) |
| Colorado | Col | Colorado Rapids (1996 - present) |
| Columbus | Cbs | Columbus Crew (1996 - present) |
| DC United | DC | DC United (1996 - present) |
| Dal Burn | DBu | Dallas Burn (1996 - 2004) |
| FC Dallas | Dal | FC Dallas (2005 - present) |
| Houston | Hou | Houston Dynamo (2006 - present) |
| Miami | Mia | Inter Miami CF (2020 - present) |
| KC Wiz | KWz | Kansas City Wiz (1996 - 1996) |
| KC Wizards | KCW | Kansas City Wizards (1997 - 2010) |
| LA Galaxy | LAG | LA Galaxy (1996 - present) |
| Los Angeles FC | LAF | Los Angeles FC (2018 - present) |
| MetroStars | Met | NY/NJ MetroStars (1996 - 2005) |
| Mia Fusion | MiF | Miami Fusion (1998 - 2001) |
| Minnesota | Min | Minnesota United (2017 - present) |
| Montreal | Mtl | CF Montreal (2021 - present) |
| Mtl Impact | MtI | Montreal Impact (2012 - 2020) |
| Nashville | Nsh | Nashville SC (2020 - present) |
| NY Red Bulls | NYR | New York Red Bulls (2006 - present) |
| New England | NE | New England Revolution (1996 - present) |
| New York FC | NYF | New York City FC (2015 - present) |
| Orlando | Orl | Orlando City (2015 - present) |
| Philadelphia | Phi | Philadelphia Union (2010 - present) |
| Portland | Por | Portland Timbers (2011 - present) |
| Real Salt Lake | RSL | Real Salt Lake (2005 - present) |
| SJ Clash | SJC | San Jose Clash (1996 - 1999) |
| San Jose | SJ | San Jose Earthquakes (2000 - present) |
| Seattle | Sea | Seattle Sounders (2009 - present) |
| Sporting KC | KC | Sporting Kansas City (2011 - present) |
| St Louis | StL | St Louis City SC (2023 - present) |
| Tampa Bay | TB | Tampa Bay Mutiny (1997 - 2001) |
| Toronto | Tor | Toronto FC (2007 - present) |
| Vancouver | Van | Vancouver Whitecaps (2011 - present) |
