| Bühnen der Stadt Gera | Bühnen der Stadt Gera | Germany, Gera, Theaterplatz 1 | 1953-10-18 | 2009-05-25 | 1953–2009 | 4 | |
| Begegnungsstätte Heinsberg | Begegnungsstätte Heinsberg | Germany, Heinsberg, Apfelstraße 60 | 2001-04-07 | -- | 2001 | 1 | |
| Bakkenteigen Kulturhus | Bakkenteigen Kulturhus | Norway, Horten, Raveien 197 | 1993-02-11 | 2020-11-01 | 1993–2023 | 22 | |
| Brussels | Brussels | Belgium, Brussels | 1893-04-26 | -- | 1893–2008 | 2 | |
| Berliner Ensemble | Berliner Ensemble | Germany, 10117 Berlin, Bertolt-Brecht-Platz 1 | 1995-01-25 | 2025-02-01 | 1995–2024 | 6 | |
| Bionmoni Theatre Utsav o Loko Utsav | Bionmoni Theatre Utsav o Loko Utsav | Bangladesh, Khulna | 2000-11-18 | 2000-11-23 | 2000 | 1 | |
| Bratca | Bratca | Romania, Bratca | -- | -- | | | |
| Békés Megyei Jókai Színház | Békés Megyei Jókai Színház | Hungary, Békéscsaba, Andrássy Way 3 | 1965-01-08 | 2007-10-30 | 1965–2009 | 7 | |
| Bürgerhaus | Bürgerhaus | Germany, Eiterfeld, Marktstraße 2 | 2004-03-22 | -- | 2004–2009 | 2 | |
| Birkeneshallen | Birkeneshallen | Norway, Birkeland | 1997-09-29 | -- | 1997 | 1 | |
| Banaras Hindu University | Banaras Hindu University | India, Varanasi, Pandit Madan Mohan Malviya Rd | 2007-03-24 | -- | 2007 | 1 | |
| Bürgerhaus Gudensberg | Bürgerhaus Gudensberg | Germany, Gudensberg | 2025-11-15 | -- | 2025 | 1 | |
| BBC 1 | BBC 1 | England, London | 1972-10-20 | -- | 1972–1974 | 2 | |
| Bramstrup | Bramstrup | Denmark, Årslev, Bramstrup 1 | 2006-08-18 | 2006-08-19 | 2006 | 1 | |
| Bratronice | Bratronice | Czech Republic, Bratronice | -- | -- | | | |
| Brønnøysund Samfunnshus | Brønnøysund Samfunnshus | Norway, Brønnøysund, Brønnøysund | 1976-11-05 | 1976-11-05 | 1976–2018 | 6 | |
| Bird Theatre | Bird Theatre | Japan, Tottori, 1812-1 Shikano Shikano-cho | -- | -- | | | |
| Burwood Theatre | Burwood Theatre | United States of America, Omaha | 1908-06-04 | 1908-06-06 | 1908 | 1 | |
| Backdoor Theatre | Backdoor Theatre | United States of America, Wichita Falls, 501 Indiana Ave | 2010-08-13 | 2010-09-18 | 2010 | 1 | |
| BBC Radio 3 | BBC Radio 3 | England, London, BBC Broadcasting House, London W1A 1AA | 1978-04-02 | 2023-07-09 | 1978–2023 | 4 | |
| Bucharest | Bucharest | Romania, Bucharest | 1894-04- | 2015-10-09 | 1894–2015 | 10 | |
| Bologna | Bologna | Italy, Bologna | 1892-08-04 | -- | 1892–1928 | 6 | |
| Brewery Arts Centre | Brewery Arts Centre | England, Kendal, Highgate | 1993-07-02 | 2006-05-20 | 1993–2018 | 5 | |
| Berkeley Lyceum Theatre | Berkeley Lyceum Theatre | United States of America, New York, 19 W.44th Street | 1894-01-05 | 1906-02-03 | 1894–1906 | 4 | |
| Barn Theatre, The | The Barn Theatre | England, Brighton, 24 Southwick St, Southwick | 2021-09-15 | 2021-09-18 | 2021 | 1 | |
| Batnfjord, Samfunnshuset | Samfunnshuset Batnfjord | Norway, Batnfjord | 1990-02-21 | -- | 1990 | 1 | |
| Benevento | Benevento | Italy, Benevento | 2002-09-09 | -- | 2002 | 1 | |
| Border Teatro | Border Teatro | Argentina | 2016-10-13 | 2017-03-27 | 2016 | 1 | |
| Borolea | Borolea | Romania, Borolea | -- | -- | | | |
| Battersea Arts Centre | Battersea Arts Centre | England, London, Lavender Hill | 2001-07-24 | 2007-06-20 | 2001–2007 | 2 | |
| Berlevåg | Berlevåg | Norway, Berlevåg | 1970-09-11 | -- | 1970–2001 | 2 | |
| Bromley Little Theatre | Bromley Little Theatre | England, Bromley, North Street | 1961-02-14 | 2017-11-18 | 1961–2017 | 3 | |
| Bürgerhaus Schwalbach (Großer Saal) | Bürgerhaus Schwalbach (Großer Saal) | Germany, Schwalbach, Marktplatz 1-2 | 2015-09-26 | -- | 2015 | 1 | |
| Bainbridge Library | Bainbridge Library | United States of America, Bainbridge Island, 1270 Madison Ave N | 2006-11-03 | -- | 2006 | 1 | |
| Brandenburger Theater | Brandenburger Theater | Germany, Brandenburg a. d. Havel, Grabenstraße 14 | 1996-02-10 | 2023-12-03 | 1996–2023 | 4 | |
| Blå kors | Blå kors | Norway, Oslo, Storgata 38 | 2012-12-04 | -- | 2012 | 2 | |
| Boston | Boston | United States of America, Boston | 1889-12-14 | 1976-02-08 | 1889–1995 | 9 | |
| Beijing Women's Normal University | Beijing nvzi shifan daxue (Beijing Women's Normal University) | China, Beijing | 1925-03-24 | -- | 1925 | 1 | |
| Botoşani | Botoşani | Romania, Botoşani | 1900-- | -- | 1900–1908 | 5 | |
| Brunnentheater Bad Helmstedt | Brunnentheater Bad Helmstedt | Germany, Helmstedt, Brunnenweg 7 | 1980-02-05 | 1999-01-12 | 1980–1999 | 2 | |
| Brooks Atkinson Theatre | Brooks Atkinson Theatre | United States of America, New York, West 47th Street | 1982-08-23 | 1982-10-02 | 1982 | 1 | |
| Budapest | Budapest | Hungary, Budapest | 1905-11-30 | 1908-12-28 | 1905–1967 | 10 | |
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