| Toronto FC | Major League Soccer | Toronto | 2006 | BMO Field |
| Treasure Coast Tritons | USL League Two | Port St. Lucie | 2016 | — |
| TSC Maryland Red Devils | National Premier Soccer League | — | 2009 | — |
| Tucson Amigos | United Soccer League | Arizona | 1989 | — |
| Tucson Fireballs | — | Arizona | 1997 | — |
| Tucson Tiburons | National Premier Soccer League | Arizona | 2003 | Mountain View High School |
| Tulsa Revolution | Major Arena Soccer League | — | 2012 | Arvest Convention Center |
| Tulsa Roughnecks | North American Soccer League | Tulsa | 1978 | Skelly Field at H. A. Chapman Stadium |
| Tulsa Roughnecks | — | Tulsa | 1993 | — |
| Tulsa Spirit | Women's Premier Soccer League | — | 2007 | — |
| Turlock Express | Major Arena Soccer League 2, Major Arena Soccer League | Turlock | 2011 | — |
| Twin Cities Phoenix | USL League Two | — | 1997 | — |
| Uhrik Truckers | American Soccer League | Philadelphia | 1933 | — |
| Ukrainian Sports Club NY | Cosmopolitan Soccer League | — | 1947 | — |
| Union Omaha | USL League One | Omaha | 2019 | — |
| Unique FC | St Croix Soccer League | — | 1970 | — |
| USL Chicago | USL Championship | Chicago | November 21, 2017 | Lincoln Yards Stadium |
| Utah Blitzz | USL Second Division | Salt Lake City | 2000 | Rice–Eccles Stadium |
| Utah Golden Spikers | American Soccer League | Salt Lake City | 1976 | — |
| Utah Salt Ratz | National Premier Soccer League | Salt Lake City | 2003 | Rice–Eccles Stadium |
| Utica City FC | Major Arena Soccer League | — | 2010 | Oncenter War Memorial Arena |
| Utulei Youth | — | Utulei | 1996 | Veterans Memorial Stadium |
| Vancouver Whitecaps FC | Major League Soccer | Vancouver | 2009 | BC Place |
| Vardar Soccer Club of Michigan | — | Detroit | 1982 | — |
| Ventura County Fusion | USL League Two | Ventura | 2006 | Ventura College |
| Vermont Green FC | USL League Two | Burlington | October 12, 2021 | Virtue Field |
| Vermont Lady Voltage | USL W-League | — | 2005 | — |
| Vermont Voltage | USL League Two | Saint Albans | 1997 | — |
| Virginia Beach City FC | Women's Premier Soccer League | — | 2015 | Virginia Beach Sportsplex |
| Virginia Beach Mariners | USL First Division | Virginia Beach | 1994 | Virginia Beach Sportsplex |
| Virginia Beach United FC | — | Virginia Beach | — | Virginia Beach Sportsplex |
| Virginia Cavalry FC | North American Soccer League | — | 2012 | BallPark at One Loudoun |
| Virginia Legacy | USL League Two | — | 2002 | — |
| Virginia United FC | — | Woodbridge | 2016 | — |
| Vitesse Dallas | Premier Arena Soccer League | — | 2007 | — |
| VSI Tampa Bay FC | USL Championship | Plant City | November 16, 2011 | Plant City Stadium |
| VSI Tampa Bay FC | USL League Two | — | 2011 | Plant City Stadium |
| Wake FC | — | Holly Springs | 2012 | — |
| Washington Crossfire | USL League Two | — | 2002 | Redmond High School |
| Washington Darts | American Soccer League | Washington, D.C. | 1967 | Brookland Stadium |
| Washington Diplomats | North American Soccer League | Washington, D.C. | 1974 | Robert F. Kennedy Memorial Stadium |
| Washington Freedom | Women's Professional Soccer | — | 2001 | Maryland SoccerPlex |
| Washington Freedom Futures | USL W-League | — | 2009 | Maryland SoccerPlex |
| Washington Whips | North American Soccer League | Washington, D.C. | 1967 | Robert F. Kennedy Memorial Stadium |
| Waza Flo | Major Arena Soccer League | — | 2008 | Taylor Sportsplex |
| West Chester United SC | — | West Chester | 2017 | — |
| West Coast FC | Women's Premier Soccer League | — | 1997 | — |
| West Dallas Kings | USL League Two | — | 2001 | — |