| B. Iden Payne Theatre (The Acting Company) | The Acting Company (B. Iden Payne Theatre (The Acting Company)) | 1994 – 1995 | 8 | |
| BABU - Barneteateret fra Bydel Alnas Barne- og Ungdomsteater | BABU - Barneteateret fra Bydel Alnas Barne- og Ungdomsteater | 2010 | 1 | |
| Baccan | Baccan | 2022 | 1 | |
| Back Alley Productions | Back Alley Productions | 2023 | 1 | |
| Badische Landesbuhne, Die | Die Badische Landesbuhne | 2006 | 18 | |
| Baktruppen | Baktruppen | 1988 – 1999 | 40 | |
| Banco do Brasil | Banco do Brasil | 2002 | 1 | |
| Bancroft Players, The | The Bancroft Players | 2004 | 1 | |
| Banff Players | Banff Players | 2007 | 1 | |
| Banyan Theater Company | Banyan Theater Company | 2003 – 2010 | 3 | |
| Barentsfestivalen | Barentsfestivalen | 2011 | 1 | |
| Barne- og Ungdomsteatret | Barne- og Ungdomsteatret | 1991 | 1 | |
| Barnet Arts Festival 99 | Barnet Arts Festival 99 | 1999 | 1 | |
| Basler Komödie | Komödie Basel (Basler Komödie) | 1962 – 1964 | 8 | |
| Bated Breath Theatre Company | Bated Breath Theatre Company | 2008 | 1 | |
| Bayerische Staatstheater | Bayerische Staatstheater | 1928 | 2 | |
| Bayerisches Staatsschauspiel | Bayerisches Staatsschauspiel | 1936 – 2010 | 18 | |
| Baylor Little Theater | Baylor Little Theater | 1928 | 2 | |
| BBC | BBC | 1928 – 1954 | 30 | 1 |
| BBC TWO | BBC TWO | 1982 | 3 | |
| Beck Center for the Arts | Beck Center for the Arts | 2002 | 1 | |
| Beechwood Players, The | The Beechwood Players | 1926 | 1 | |
| Beijing Dance Drama and Opera Company | Beijing Dance Drama and Opera Company | 2004 | 1 | |
| Beijing International Drama Festival | Beijing International Drama Festival | 2004 | 1 | |
| Beijing Modern Dance Company | Beijing Modern Dance Company | 2006 | 1 | |
| Beijing National Theatre | Beijing National Theatre | 2006 | 1 | |
| Békés Megyei Jókai Színház | Békés Megyei Jókai Színház | 1999 | 3 | |
| Bel Image, Le | Le Bel Image | 2009 | 1 | |
| Belmont University Theatre & Dance Department | Belmont University Theatre & Dance Department | 2004 | 1 | |
| Belvoir Street Theatre Company | Belvoir Street Theatre Company | 1989 – 2018 | 13 | |
| Belyj Teatr | Belyj Teatr | 2003 – 2006 | 2 | |
| Ben Iden Payne’s Company | Ben Iden Payne’s Company | 1911 | 1 | |
| Bergen Byspill | Bergen Byspill | 2006 | 5 | |
| Bergen Filharmoniske Orkester | Bergen Filharmoniske Orkester (Bergen Philharmonic Orchestra) | 2021 – 2024 | 2 | |
| Berliner Dramatische Gesellschaft | Berliner Dramatische Gesellschaft | 1887 | 1 | |
| Berliner Ensemble | Berliner Ensemble | 1933 – 2008 | 9 | |
| Berliner Festspiele | Berliner Festspiele | 1998 – 2006 | 4 | |
| Berliner Secessionsbühne | Berliner Secessionsbühne | 1900 | 4 | |
| Berliner Theatertreffen | Berliner Theatertreffen | 2000 – 2016 | 5 | |
| Berliner Volksbühnen-Ensemble | Berliner Volksbühnen-Ensemble | 1895 | 3 | |
| Betty Hennings Turne | Betty Hennings Tourneen (Betty Hennings Turne) | 1901 | 13 | |
| Binghamton University Department of Theatre | Binghamton University Department of Theatre | 2004 | 1 | |
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