| Budapesti Thália, A | A Budapesti Thália | | | |
| Bloomington Area Arts Council, The | The Bloomington Area Arts Council | 2002 | 1 | |
| Blue Bridge’ | Blue Bridge’ | 2022 | 1 | |
| Binghamton University Department of Theatre | Binghamton University Department of Theatre | 2004 | 1 | |
| Banco do Brasil | Banco do Brasil | 2002 | 1 | |
| Boston Bijou Theatre Company | Boston Bijou Theatre Company | 1907 | 1 | |
| Burning Coal Theatre Company | Burning Coal Theatre Company | 2001 | 1 | |
| Black Inc. | Black Inc. | 1986 | 1 | |
| Box Theatre Company | Box Theatre Company | 2002 | 1 | |
| Ben Iden Payne’s Company | Ben Iden Payne’s Company | 1911 | 1 | |
| Bluebird Photoplay | Bluebird Photoplays (Bluebird Photoplay) | 1917 | 1 | |
| Belmont University Theatre & Dance Department | Belmont University Theatre & Dance Department | 2004 | 1 | |
| Byks 08 | Byks 08 | 2008 | 1 | |
| Buffton Universtiy | Buffton Universtiy | | 1 | |
| Black Hills State University | Black Hills State University | 1999 | 1 | |
| Beck Center for the Arts | Beck Center for the Arts | 2002 | 1 | |
| Banff Players | Banff Players | 2007 | 1 | |
| Black Swamp Players | Black Swamp Players | 2023 | 1 | |
| Beijing Modern Dance Company | Beijing Modern Dance Company | 2006 | 1 | |
| Bel Image, Le | Le Bel Image | 2009 | 1 | |
| Barnet Arts Festival 99 | Barnet Arts Festival 99 | 1999 | 1 | |
| Brisbane Repertory Theatre | Brisbane Repertory Theatre | 1928 | 1 | |
| BABU - Barneteateret fra Bydel Alnas Barne- og Ungdomsteater | BABU - Barneteateret fra Bydel Alnas Barne- og Ungdomsteater | 2010 | 1 | |
| BITEF 2003 | BITEF 2003 | 2003 | 1 | |
| Bancroft Players, The | The Bancroft Players | 2004 | 1 | |
| Borba Teatro | Borba Teatro | 2024 | 1 | |
| Bonfils Theatre | Bonfils Theatre | 1974 | 1 | |
| Beijing Dance Drama and Opera Company | Beijing Dance Drama and Opera Company | 2004 | 1 | |
| Back Alley Productions | Back Alley Productions | 2023 | 1 | |
| Barne- og Ungdomsteatret | Barne- og Ungdomsteatret | 1991 | 1 | |
| Bright China Drama Society | Bright China Drama Society | 1935 | 1 | |
| Blanche Bates and Company | Blanche Bates and Company | 1901 | 1 | |
| Beijing National Theatre | Beijing National Theatre | 2006 | 1 | |
| Burnside Players | Burnside Players | 2009 | 1 | |
| Barentsfestivalen | Barentsfestivalen | 2011 | 1 | |
| Berliner Dramatische Gesellschaft | Berliner Dramatische Gesellschaft | 1887 | 1 | |
| Beijing International Drama Festival | Beijing International Drama Festival | 2004 | 1 | |
| Bated Breath Theatre Company | Bated Breath Theatre Company | 2008 | 1 | |
| Beechwood Players, The | The Beechwood Players | 1926 | 1 | |
| Baylor Little Theater | Baylor Little Theater | 1928 | 2 | |
| Brisbane Festival | Brisbane Festival | 1959 – 2006 | 2 | |
| Black Box Teater | Black Box Teater | 2009 – 2010 | 2 | 1 |
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