| Abbey Theatre Studio | Abbey Theatre Studio | England, St Albans, Hertfordshire, Westminster Lodge, Holywell Hill | 2006-10-13 | 2013-10-19 | 2006–2013 | 2 | |
| Asti | Asti | Italy, Asti | 1908-11-01 | 1934-05-04 | 1908–1934 | 2 | |
| Arena Theatre, Moravian College | Arena Theatre, Moravian College | United States, Bethlehem, 1200 Main St | 2005-10-20 | 2020-02-14 | 2005–2020 | 2 | |
| Aplo Theatro | Aplo Theatro | Greece, Kallithea, 4 Charilaou Trikoupi Street | 1991-12-25 | 2005-04-24 | 1991–2004 | 2 | |
| Arena Stage | Arena Stage | United States, Washington D.C., 1101 6th Street Southwest | 1990-03-02 | 1995-03-19 | 1990–1995 | 2 | |
| Arthur Cotterell Theatre | Arthur Cotterell Theatre at Kingston College | England, Kingston-upon-Thames, Kingston Hall Rd | 2012-03-17 | -- | 2012 | 2 | |
| Athenaeum Theatre | Athenaeum Theatre | United States, Chicago, IL, 2936 N. Southport Avenue | 2000-04-25 | 2014-06-08 | 2000–2014 | 2 | |
| Aulaen AID | Aulaen AID | Norway, Grimstad | 1984-11-28 | -- | 1984–1985 | 2 | |
| Altmärkisches Landestheater Stendal | Altmärkisches Landestheater Stendal | Germany, Stendal, Karlstraße 6 | 1930-11-02 | -- | 1930–1936 | 2 | |
| Academy of Fine Arts, Kolkata | Academy of Fine Arts, Kolkata | India, Kolkata, 2, Cathedral Road | 2004-01- | -- | 2004–2006 | 2 | |
| Athénée Théâtre Louis Jouvet | Athénée Théâtre Louis Jouvet | France, Paris, 24 Rue de Caumartin | 1929-04-27 | 2003-02-08 | 1929–2003 | 2 | |
| Al Hakawati, Palestinian National Theatre | Al Hakawati, Palestinian National Theatre | Israel, Jerusalem, 4 Abu Obiedah Ibn Al Jarah Street | 2006-01-27 | 2006-06-17 | 2006–2008 | 2 | |
| Ardhowen Theatre | Ardhowen Theatre | Northern Ireland, Enniskillen, 97 Dublin Road | 2007-03-10 | -- | 2007–2011 | 2 | |
| Årdalstangen | Årdalstangen | Norway, Årdalstangen | 1971-02-26 | -- | 1971–1996 | 2 | |
| Antwerpen | Antwerpen | Belgium, Antwerpen | 1894-03-14 | -- | 1894–1957 | 2 | |
| Aktientheater in Zürich | Aktientheater in Zürich | Switzerland, Zürich | 1888-10-24 | -- | 1888–1889 | 2 | |
| Aalborg | Aalborg | Denmark, Aalborg | 1873-10-30 | -- | 1873–1874 | 2 | |
| Arbeidersamfundets Lokale | Arbeidersamfundets Lokale | Norway, Harstad | 1900-07-07 | -- | 1900–1970 | 2 | |
| Arena Borghesi | Arena Borghesi | Italy, Faenza, Viale Stradone 2 | 1900-07-06 | 1900-07-06 | 1900 | 2 | |
| Ankara State Theatre | Ankara Devlet Tiyatrosu (Ankara State Theatre) | Turkey, Kavaklidere, Ankara, Atatürk Bulvarı, No: 227 | 1977-- | 2015-- | 1977–2014 | 2 | |
| Augustana Theatre | Augustana Theatre | Canada, Camrose, 4901 46 Ave | 2007-03-15 | 2011-11-26 | 2007–2011 | 2 | |
| Alexandria | Alexandria | Egypt, Alexandria | 1892-03-15 | 2006-06-29 | 1892–2006 | 2 | |
| Agassiz Theatre | Agassiz Theatre | United States, Cambridge, 5 James St Harvard University, Radcliffe Institute | 1957-10-27 | 1992-11-14 | 1957–1992 | 2 | |
| Actors Theatre of Louisville | Actors Theatre of Louisville | United States, Louisville, 316 West Main St. | 1972-02-10 | 2013-04-07 | 1972–2013 | 2 | |
| ADC Theatre | ADC Theatre | England, Cambridge, Park St | 1999-10-02 | 2001-11-03 | 1999–2001 | 2 | |
| A.T.F. ( University of Arts Târgu Mureş) | A.T.F. ( University of Arts Târgu Mureş) | Romania, Târgu-Mureș, Strada Köteles Sámuel 6 | 1958-06-20 | 1958-06-25 | 1958–1970 | 2 | |
| Aleksandriskij teatr | Aleksandriskij teatr | Russia, St Petersburg, Russland, Ostrovskogo Square, 6 | 1917-12-15 | -- | 1917–2011 | 2 | |
| Akademietheater | Akademietheater | Austria, Wien, Lisztstraße 1 | 1979-10-17 | -- | 1979–2012 | 2 | |
| Arcola Theatre Studio 1 | Arcola Theatre Studio 1 | England, London, 24 Ashwin St | 2008-04-01 | 2009-08-22 | 2008–2009 | 2 | |
| Ark Theatre Company | Ark Theatre Company | United States, Los Angeles, 2511 Wilshire Blvd | 2008-05-08 | 2008-06-14 | 2008 | 1 | |
| Åmot gard | Åmot gard | Norway, Bygstad, Midttunet | 2009-04-30 | 2009-05-03 | 2009 | 1 | |
| Arrigoni, Teatro | Teatro Arrigoni | Italy, San Vito al Tagliamento, Piazza del Popolo, 13 | 2017-01-19 | -- | 2017 | 1 | |
| Apotekergaarden | Apotekergaarden | Norway, Grimstad | 2013-08-07 | -- | 2013 | 1 | |
| Acrosstown Repertory Theatre | Acrosstown Repertory Theatre | United States, Gainesville, 619 S Main St | 2000-10-12 | 2000-11-04 | 2000 | 1 | |
| Adam House Theatre | Adam House Theatre | Scotland, Edinburgh | 1969-10-22 | -- | 1969 | 1 | |
| Aula der Wolfgang-Borchert-Realschule | Aula der Wolfgang-Borchert-Realschule | Germany, Hattingen | 1980-03-23 | -- | 1980 | 1 | |
| Aure barne- og ungdomsskole | Aure barne- og ungdomsskole | Norway, Aure, Aure | 2007-03-19 | -- | 2007 | 1 | |
| Aula der Jacob Lienau Realschule | Aula der Jacob Lienau Realschule | Germany, Neustadt-Holstein, Schulstraße 4 | 1997-09-30 | 1997-09-30 | 1997 | 1 | |
| Arts Council Theatre | Arts Council Theatre | Pakistan, Karachi, M.R Kyani Road | 2007-02-15 | 2007-02-19 | 2007 | 1 | |
| Akasaka Red Theater | Akasaka Red Theater | Japan, Tokyo, 3-10-9 Akasaka, Minato-ku | 2009-07-08 | 2009-07-14 | 2009 | 1 | |
| ANKER Leipzig | ANKER Leipzig | Germany, Leipzig, Renftstraße 1 | 2006-06-21 | -- | 2006 | 1 | |
| Adelaide | Adelaide | Australia, Adelaide | 1930-01-01 | -- | 1930 | 1 | |
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