ClubLocationLeagueTierFounded
Thap Luang United—Thai League 3 - Western Region—2021
Thionville Lusitanos—National 2—2021Thionville Lusitanos B—Régional 1 - Grand Est—2021
Tigar Sveta Nedelja—4. NL Središte Zagreb - B—2021
Tigres de Álica—Liga Premier - Serie A—2021
Tillmitsch—Landesliga Steiermark—2021
Tokat Belediye Plevnespor—TFF 3. Lig—2021Tritones Vallarta—Liga Premier - Serie A—2021
Tubize-Braine—Belgian National Division 1 - ACFF—2021
Tuntum—Campeonato Maranhense - Série A—2021
Tytan Odesa—Chempionat Odeskoi Oblasti—2021
Unirea Constanța—Dissolved 2023—2021
Unired—Dissolved 2024—2021
United Chirang Duar—Assam State Premier League—2021
Unión Coclé—Segunda División de Panamá—2021
Upington City—National First Division—2021
Uralets Media—Medialiga—2021
Valby United—DBU København Serie 3—2021Venda—National First Division—2021
Vermont Green—USL League Two - Northeast Division—2021
West Coast Rangers—Northern League—2021
Xi'an Ronghai—CMCL—2021Xinjiang Snowland Tiancheng—Xinjiang Champions League—2021Yunnan Yukun—Chinese Super League—2021
Zamalek—Dissolved 2022—2021
Žolík Malacky—III. Liga - Západ—2021