| Tolstoy State Theatre | Tolstoy State Theatre | | | |
| Teatr Wielki | Teatr Wielki | | | |
| Tournée Gabrieli Zapolskiej | Tournée Gabrieli Zapolskiej | 1887 | 1 | |
| Teatr Mały z Warsawy pod kier | Teatr Mały z Warsawy pod kier | 1913 | 1 | |
| Transvaalse Raad vir die Uitvoerende Kunste | Transvaalse Raad vir die Uitvoerende Kunste | 1985 | 1 | |
| Trupa Anastazego Trapszy i Bolesława Kremskiego | Trupa Anastazego Trapszy i Bolesława Kremskiego | 1882 | 1 | |
| Trupa Józefa Teksla i Feliksa Wesosowskiego | Trupa Józefa Teksla i Feliksa Wesosowskiego | 1883 | 1 | |
| Trond Woxen | Trond Woxen | 1997 | 1 | |
| Thiasos tis Ellinikis Komodias – Eftychios Vonaseras-Evangel | Thiasos tis Ellinikis Komodias – Eftychios Vonaseras-Evangel | 1898 | 1 | |
| Theatre Vertigo | Theatre Vertigo | 2007 | 1 | |
| Tokyo Stage Society | Tokyo Stage Society | 1912 | 1 | |
| Theater im Rang | Theater im Rang | 1970 | 1 | |
| Territorio Violeta | Territorio Violeta | 2023 | 1 | |
| Tofusha | Tofusha | 1994 | 1 | |
| Tampere Internasjonale Teaterfestival | Tampere Internasjonale Teaterfestival | 1993 | 1 | |
| Theater works | Theater works | 2024 | 1 | |
| Théâtre du Vieux-Colombier | Théâtre du Vieux-Colombier | 1918 | 1 | |
| Théâtre du Rideau de Bruxelles | Théâtre du Rideau de Bruxelles | 2002 | 1 | |
| Theatre of Ireland | Theatre of Ireland | 1906 | 1 | |
| Thiasos (Konstantinos Vonaseras?) | Thiasos (Konstantinos Vonaseras?) | 1896 | 1 | |
| Teatro del Maggio Musicale Fiorentino | Teatro del Maggio Musicale Fiorentino | 2024 | 1 | 1 |
| Thiasos Dimosthenis Alexiadis | Thiasos Dimosthenis Alexiadis | 1901 | 1 | |
| Theatre Royal Bath Productions | Theatre Royal Bath Productions | 2010 | 1 | |
| Torosha | Torosha | 1918 | 1 | |
| Tin Alley Players | Tin Alley Players | 1945 | 1 | |
| Teatr-studiâ "Na Filâh" | Teatr-studiâ "Na Filâh" | 1992 | 1 | |
| Teatro del Loto | Teatro del Loto | 2022 | 1 | 1 |
| Tokyo International Players | Tokyo International Players | 2004 | 1 | |
| Tel Aviv-Yafo First International Theatre Festival | Tel Aviv-Yafo First International Theatre Festival | 2009 | 1 | |
| Theater am Schiffbauerdamm | Theater am Schiffbauerdamm | 1950 | 1 | |
| Thiasos Kathreftis | Thiasos Kathreftis | 2006 | 1 | |
| Thiasos Christina Kalogerikou | Thiasos Christina Kalogerikou | 1914 | 1 | |
| Tourism East Flores Municipal Office | Tourism East Flores Municipal Office | 2019 | 1 | |
| Teatr Polski pod dyr. Władysława Czajkowskiego | Teatr Polski pod dyr. Władysława Czajkowskiego | 1904 | 1 | |
| Teatro Paulista | Teatro Paulista | 1956 | 1 | |
| Teatro Studio Jankowski | Teatro Studio Jankowski | 2013 | 1 | |
| TTU Tech Players | TTU Tech Players | 2006 | 1 | |
| TemprArt Teatro Arte Tempra | TemprArt Teatro Arte Tempra | 2019 | 1 | 1 |
| Thiasos Thomas Oikonomou-Loukia Tiveri | Thiasos Thomas Oikonomou-Loukia Tiveri | 1909 | 1 | |
| Tysnesfest 09 | Tysnesfest 09 | 2009 | 1 | |
| Teaterhögskolans avgangsstudenter | Teaterhögskolans avgangsstudenter | 2000 | 1 | |
| Thiasos (Olympia Lalaouni-Damaskou?) | Thiasos (Olympia Lalaouni-Damaskou?) | 1907 | 1 | |
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