| Théâtre de Caen | Théâtre de Caen | 1994 – 2014 | 29 | |
| TITAN Teaterskole | TITAN Teaterskole | 2009 | 1 | |
| Theater Malpertuis | Theater Malpertuis | 1994 | 12 | |
| Theatre Office Natori, The | The Theatre Office Natori | 1999 – 2012 | 24 | |
| Truppa dramatičeskich artistov pod upravleniem A. Tol´skogo | Truppa dramatičeskich artistov pod upravleniem A. Tol´skogo | 1914 | 1 | |
| Teatr i Sąd | Teatr i Sąd | 1914 | 1 | |
| Thiaso Xenofon Isaïas | Thiaso Xenofon Isaïas | 1903 | 1 | |
| Theater am Brunnenhof | Theater am Brunnenhof | 1949 – 1950 | 3 | |
| Teatr RSFSR 1-j | Teatr RSFSR 1-j (Театр РСФСР 1-й) | 1921 | 2 | |
| Teatro 5 de Setembro | Teatro 5 de Setembro | 1952 | 2 | |
| Thiasos Ellinikis Komodias Michaïl Iakovidis | Thiasos Ellinikis Komodias Michaïl Iakovidis | 1909 | 2 | |
| Teatro del Loto | Teatro del Loto | 2022 | 1 | |
| Tampere Theatre Festival | Tampere Theatre Festival | 2009 | 1 | |
| TITAN Teatergruppe | TITAN Teatergruppe | 2008 | 1 | |
| Teatr Ziemi Pomorskiej | Teatr Ziemi Pomorskiej | 1955 | 1 | |
| Teatr Fantazja | Teatr Fantazja | 1903 | 1 | |
| Tooneelvereeniging, De | De Tooneelvereeniging | 1889 | 1 | |
| Theater Bielefeld | Theater Bielefeld | 2004 – 2016 | 4 | |
| Teatro d'Arte di Roma | Teatro d'Arte di Roma | 1927 – 1928 | 3 | |
| Teatro de la Danza de Madrid | Teatro de la Danza de Madrid | 2010 – 2011 | 40 | |
| Tournée trupy Karola Adwentowicza | Tournée trupy Karola Adwentowicza | 1908 | 31 | |
| Torinokai | Torinokai | 1983 – 1994 | 3 | |
| Teatro Studio Jankowski | Teatro Studio Jankowski | 2013 | 1 | |
| Theater der Litterarischen Gesellschaft in Leipzig | Theater der Litterarischen Gesellschaft in Leipzig | 1896 – 1897 | 3 | |
| Teater Manu - norsk tegnspråkteater | Teater Manu - norsk tegnspråkteater | 2006 – 2024 | 12 | |
| Talawa Theatre Company | Talawa Theatre Company | 1996 | 1 | |
| Thiasos Dimitrios Angelakis | Thiasos Dimitrios Angelakis | 1900 – 1901 | 3 | |
| Teatr Mały z Warsawy pod kier | Teatr Mały z Warsawy pod kier | 1913 | 1 | |
| Tivoli Teater | Tivoli Teater | 1901 | 1 | |
| Theatre Guild, The | The Theatre Guild | 1923 – 1924 | 3 | |
| Teatro Stabile di Genova | Teatro Stabile di Genova | 1977 – 2018 | 11 | |
| Thiasos Kyveli Adrianou | Thiasos Kyveli Adrianou | 1907 – 1928 | 44 | |
| Théâtre Centaure | Théâtre Centaure | 2000 – 2003 | 3 | |
| Teatro Metastasio di Prato | Teatro Metastasio di Prato | 2024 | 1 | |
| Théâtre de l'Oeuvre | Théâtre de l'Oeuvre | 1893 – 1923 | 61 | |
| Trond Woxen | Trond Woxen | 1997 | 1 | |
| Theatre Couture | Theatre Couture | 2000 | 1 | |
| Teatro del Marchesato | Teatro del Marchesato | 2024 | 1 | |
| Theater Die Insel in der Komödie | Theater Die Insel in der Komödie | 1947 | 3 | |
| Tokyo Stage Society | Tokyo Stage Society | 1912 | 1 | |
| Tehrik-e-Niswan | Tehrik-e-Niswan | 2006 – 2012 | 4 | |
| Test Pilot Productions | Test Pilot Productions | 2006 | 2 | |
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