| Trupa Karola Adwentowicza | Trupa Karola Adwentowicza | 1908 | 10 | |
| Teatr Miejski | Teatr Miejski | 1911 | 1 | |
| Theater Department of Sangmyung University's College of Arts | Theater Department of Sangmyung University's College of Arts | 2023 | 1 | |
| Théâtre de Caen | Théâtre de Caen | 1994 – 2014 | 29 | |
| Teater Grimsborken | Teater Grimsborken | 2005 – 2007 | 91 | |
| Theater Malpertuis | Theater Malpertuis | 1994 | 12 | |
| The Embassy of the Republic of Bulgaria in the Republic of Slovenia | The Embassy of the Republic of Bulgaria in the Republic of Slovenia | 2024 | 1 | |
| Theater Tour Angela Reyer GmbH | Theater Tour Angela Reyer GmbH | 2002 – 2004 | 12 | |
| Three P's Society of Tufts College, The | The Three P's Society of Tufts College | 1913 | 1 | |
| Tournée Harriet Bosse | Tournée Harriet Bosse | 1924 | 2 | |
| Teatre Bis | Teatre Bis | 1997 | 1 | |
| Teatar «Salsa i smjah» | Teatar «Salsa i smjah» | 1924 | 1 | |
| TAC Produções Artísticas | TAC Produções Artísticas | 1971 | 5 | |
| Teatre d’Art | Teatre d’Art | 1922 | 1 | |
| Tampere Theatre Festival | Tampere Theatre Festival | 2009 | 1 | |
| Teatr Ziemi Pomorskiej | Teatr Ziemi Pomorskiej | 1955 | 1 | |
| Teatr Fantazja | Teatr Fantazja | 1903 | 1 | |
| Theatre Office Natori, The | The Theatre Office Natori | 1999 – 2012 | 24 | |
| Thiasos Nikolaos Plessas | Thiasos Nikolaos Plessas | 1911 | 4 | |
| Teatr i Sąd | Teatr i Sąd | 1914 | 1 | |
| Theater am Brunnenhof | Theater am Brunnenhof | 1949 – 1950 | 3 | |
| Thiasos Koula Zervou | Thiasos Koula Zervou | 1921 | 1 | |
| Teatro 5 de Setembro | Teatro 5 de Setembro | 1952 | 2 | |
| Teatr Letni w Ogrodzie Bernardyńskim | Teatr Letni w Ogrodzie Bernardyńskim | 1907 | 1 | |
| Teatralnyj Osobnâkʺ | Teatralnyj Osobnâkʺ | 2009 | 1 | |
| Theater der Litterarischen Gesellschaft in Leipzig | Theater der Litterarischen Gesellschaft in Leipzig | 1896 – 1897 | 3 | |
| Tyrili Teatret | Tyrili Teatret | 1991 | 1 | |
| Talawa Theatre Company | Talawa Theatre Company | 1996 | 1 | |
| Thiasos Dimitrios Angelakis | Thiasos Dimitrios Angelakis | 1900 – 1901 | 3 | |
| Trond Reinholdtsen | Trond Reinholdtsen | 2011 | 1 | |
| Tooneelvereeniging, De | De Tooneelvereeniging | 1889 | 1 | |
| Theater Bielefeld | Theater Bielefeld | 2004 – 2016 | 4 | |
| Thiasos Marika Kotopouli | Thiasos Marika Kotopouli | 1918 – 1945 | 6 | |
| Teatro de la Danza de Madrid | Teatro de la Danza de Madrid | 2010 – 2011 | 40 | |
| Teatr Łódzki | Teatr Łódzki | 1906 | 1 | |
| Torinokai | Torinokai | 1983 – 1994 | 3 | |
| Théâtre de l'Oeuvre | Théâtre de l'Oeuvre | 1893 – 1923 | 61 | |
| Thiasos (Rozalia Nika?) | Thiasos (Rozalia Nika?) | 1910 | 1 | |
| Theatre Couture | Theatre Couture | 2000 | 1 | |
| Teatro di Documenti | Teatro di Documenti | 2019 | 1 | |
| Theater Die Insel in der Komödie | Theater Die Insel in der Komödie | 1947 | 3 | |
| TITAN Teaterskole | TITAN Teaterskole | 2009 | 1 | |
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