| Brooklyn Academy of Music | Brooklyn Academy of Music | United States of America, Brooklyn, 30 Lafayette Avenue | 1910-03-22 | 2015-05-03 | 1910–2015 | 12 | |
| Baja | Baja | Hungary, Baja | 1890-11-19 | -- | 1890–1933 | 14 | |
| Bratislava | Bratislava | Slovak Republic, Bratislava | 1891-02-03 | 2008-05-17 | 1891–2006 | 14 | |
| Borgarleikhúsið | Borgarleikhúsið | Iceland, Reykjavík, Listabraut 3 | 1903-03-21 | 2002-02-03 | 1903–2001 | 14 | |
| Badisches Staatstheater | Badisches Staatstheater | Germany, Karlsruhe, Baumeisterstraße 11 | 1934-01-14 | 2006-02-26 | 1934–2018 | 15 | |
| Bonner Stadttheater | Bonner Stadttheater | Germany, Bonn | 1897-03-12 | 1904-02-26 | 1897–1909 | 21 | |
| Betty Nansen Teatret | Betty Nansen Teatret | Denmark, Frederiksberg, Frederiksberg Alle 57 | 1917-10-30 | 2006-10-21 | 1917–2006 | 21 | |
| Baden, Kurtheater | Kurtheater Baden | Switzerland, Baden, Parkstrasse 20, 5400 Baden, Switzerland | 1970-02-14 | 1991-02-20 | 1970–2008 | 22 | |
| Bakkenteigen Kulturhus | Bakkenteigen Kulturhus | Norway, Horten, Raveien 197 | 1993-02-11 | 2020-11-01 | 1993–2023 | 22 | |
| Burgtheater (Akademietheater) | Burgtheater (Akademietheater) | Austria, Vienna, Lisztstraße 1 | 1925-01-13 | 2006-06-23 | 1925–2017 | 24 | |
| Bremer Schauspielhaus | Bremer Schauspielhaus | Germany, Bremen, Goetheplatz 1-3 | 1917-08-25 | 1935-01-18 | 1917–1938 | 26 | |
| Békéscsaba | Békéscsaba | Hungary, Békéscsaba | 1890-09-15 | 1925-03-11 | 1890–1944 | 27 | |
| Birmingham Repertory Theatre | Birmingham Repertory Theatre | England, Birmingham, Broad Street | 1913-05-10 | 2008-03-29 | 1913–2008 | 29 | |
| Bayerisches Staatsschauspiel, Residenz Theater | Bayerisches Staatsschauspiel, Residenz Theater | Germany, Munich, Max-Joseph-Platz 1, | 1928-03-18 | 2023-11-21 | 1928–2023 | 30 | |
| Burgtheater | Burgtheater | Austria, Vienna, Universitätsring 2 | 1919-03-13 | 2019-06-30 | 1919–2017 | 35 | |
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