| Accademia del Teatro di Firenze | Accademia del Teatro di Firenze | 1992 – 2016 | 224 | 14 |
| August Lindbergs Sällskap | August Lindbergs Sällskap | 1883 – 1896 | 92 | |
| Agder Teater | Agder Teater | 1993 – 2015 | 70 | 7 |
| August Lindbergs turnéer | August Lindbergs turnéer | 1887 – 1897 | 37 | |
| Akroama | Akroama | 2019 – 2023 | 27 | 3 |
| Albert Ranfts Sällskap | Albert Ranfts Sällskap | 1885 – 1900 | 21 | |
| August Rasmussens Teaterselskab | August Rasmussens Teaterselskab | 1876 – 1878 | 16 | |
| Albert u. Else Bassermann | Albert u. Else Bassermann | 1933 – 1950 | 13 | |
| Arts Alliance Productions | Arts Alliance Productions | 2006 – 2009 | 11 | |
| Aarohan Theatre Group | Aarohan Theatre Group | 2003 – 2007 | 11 | |
| Agnes Sorma Ensemble | Agnes Sorma Ensemble | 1900 | 11 | |
| Archivio Zeta | Archivio Zeta | 2013 – 2014 | 8 | 1 |
| American Conservatory Theater | American Conservatory Theater | 1973 – 2007 | 8 | |
| ARTE TV | ARTE TV | 2003 – 2006 | 8 | |
| Askepott-Teateret | Askepott-Teateret | 2006 | 7 | |
| Arts Theatre Club | Arts Theatre Club | 1930 – 1931 | 6 | |
| Associazione culturale Extravagarte | Associazione culturale Extravagarte | 2005 – 2022 | 6 | 2 |
| American Ibsen Theater | American Ibsen Theater | 1983 – 1985 | 6 | |
| Associazione Culturale 'Gianni Santuccio' | Associazione Culturale 'Gianni Santuccio' | 2000 – 2020 | 5 | |
| August Sandberg Sällskap | August Sandberg Sällskap | 1878 – 1880 | 5 | |
| Akademi for scenekunst | Akademi for scenekunst | 2006 – 2009 | 5 | |
| Adelaide University Theatre Guild | Adelaide University Theatre Guild | 1960 – 1986 | 5 | |
| Australia Council for the Arts | Australia Council for the Arts | 1970 – 1998 | 5 | |
| Almeida Theatre Company, The | The Almeida Theatre Company | 1990 – 2018 | 5 | |
| ATE: Associazione Teatro Europa | ATE: Associazione Teatro Europa | 2011 – 2013 | 4 | 2 |
| Abbey Theatre | Abbey Theatre | 2005 – 2023 | 4 | 1 |
| ARW Prosjektteater | ARW Prosjektteater | 2006 | 4 | |
| Artéria Színházi Társaság | Artéria Színházi Társaság | 2003 – 2004 | 4 | |
| Akademisch-Dramatischer Verein | Akademisch-Dramatischer Verein (Akademische-Dramatische Verein) | 1893 | 4 | |
| Arts Theatre of Cambridge, The | The Arts Theatre of Cambridge | 1936 | 4 | |
| Associazione culturale T.E - A.I.A.S.P | Associazione culturale T.E - A.I.A.S.P | 2008 | 4 | |
| Associazione TeRRRe | Associazione TeRRRe | 2019 | 3 | 3 |
| Assitej-festivalen | Assitej-festivalen | 1992 – 1993 | 3 | |
| Australian Elizabethan Theatre Trust, The | The Australian Elizabethan Theatre Trust | 1970 | 3 | |
| Adelaide Repertory Theatre Incorporated | Adelaide Repertory Theatre Incorporated | 1917 – 1964 | 3 | |
| Akosha | Akosha | 1976 | 3 | |
| Actors Company, The | The Actors Company | 1996 – 2003 | 3 | |
| Asociación Obrera de Teatro | Asociación Obrera de Teatro | 1927 | 2 | |
| Athens Festival | Athens Festival | 2006 – 2010 | 2 | |
| Associate Players | Associate Players | 1922 | 2 | |
| Alfredo B. Crevenna | Alfredo B. Crevenna | 1954 | 2 | |
| Aesthetic Realism Theatre Company, The | The Aesthetic Realism Theatre Company | 2001 | 2 | |
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