| Brockley Jack Theatre (Jack Studio Theatre) | Brockley Jack Theatre (Jack Studio Theatre) | England, London, 410 Brockley Road | 2005-11-01 | 2023-10-14 | 2005–2023 | 3 | |
| Bridge Theatre | Bridge Theatre | England, London, 3 Potters Fields Park | 2022-09-24 | 2025-11-08 | 2022–2025 | 2 | |
| Barons Court Theatre | Barons Court Theatre | England, London, 28a Comeragh Rd | 2006-09-26 | 2018-06-30 | 2006–2018 | 6 | |
| Bijou Theatre | Bijou Theatre | England, London, 21 Archer Street, Westbourne Grove | 1907-09-17 | -- | 1907 | 1 | |
| Bloomsbury Theatre | Bloomsbury Theatre | England, London, 15 Gordon St London WC1H 0AH | 1986-06-23 | 1986-06-28 | 1986 | 1 | |
| Bridewell Theatre | Bridewell Theatre | England, London, 14 Bride Lane | 2009-07-14 | 2025-07-12 | 2009–2025 | 3 | |
| BBC 2 | BBC 2 | England, London | 1982-07-19 | -- | 1982–1992 | 4 | |
| BBC 1 | BBC 1 | England, London | 1972-10-20 | -- | 1972–1974 | 2 | |
| Bird's Nest Theatre, The | The Bird's Nest Theatre | England, London | 1991-06-11 | 1991-06-30 | 1991 | 1 | |
| BBC Television | BBC Television | England, London | 1959-08-11 | -- | 1959–1965 | 4 | |
| Banham Theatre | Banham Theatre | England, Leeds, Woodhouse Lane | 2019-11-05 | 2019-11-07 | 2019 | 1 | |
| Brewery Arts Centre | Brewery Arts Centre | England, Kendal, Highgate | 1993-07-02 | 2006-05-20 | 1993–2018 | 5 | |
| Bryanston Arts Centre | Bryanston Arts Centre | England, Dorset, Blandford Forum | 1999-04-30 | -- | 1999 | 1 | |
| Barnfield Theatre | Barnfield Theatre | England, Devon, Barnfield Rd, Exeter | 1928-02-27 | 2024-05-04 | 1928–2024 | 2 | |
| Bovey Tracey Town Hall | Bovey Tracey Town Hall | England, Devon | 2007-12-08 | -- | 2007 | 1 | |
| Belgrade Theatre | Belgrade Theatre | England, Coventry, Belgrade Square, Corporation St | 1985-01-31 | 2012-02-18 | 1985–2012 | 3 | |
| Belgrade Theatre | Belgrade Theatre | England, Coventry, Belgrade Square, Corporation St | -- | -- | | | |
| Buxton Opera House | Buxton Opera House | England, Buxton, Water St | 1993-08-10 | 1999-11-06 | 1993–2014 | 9 | |
| Brewhouse, The | The Brewhouse | England, Burton upon Trent, Duke St | 1993-07-09 | 1993-07-10 | 1993 | 1 | |
| Burnley Mechanics Theatre | Burnley Mechanics Theatre | England, Burnley, Manchester Rd | 1993-09-22 | 2014-10-23 | 1993–2014 | 2 | |
| Bromley Little Theatre | Bromley Little Theatre | England, Bromley, North Street | 1961-02-14 | 2017-11-18 | 1961–2017 | 3 | |
| Brixton Theatre | Brixton Theatre | England, Brixton, Coldharbour Lane | 1922-08-14 | -- | 1922 | 1 | |
| Bristol Old Vic | Bristol Old Vic | England, Bristol, King Street | 1948-05-04 | 2007-02-17 | 1948–2007 | 4 | |
| Barn Theatre, The | The Barn Theatre | England, Brighton, 24 Southwick St, Southwick | 2021-09-15 | 2021-09-18 | 2021 | 1 | |
| Brighton | Brighton | England, Brighton | 1999-12-06 | 1999-12-12 | 1999 | 1 | |
| Brentwood Theatre | Brentwood Theatre | England, Brentwood, 15 Shenfield Road | 2002-11-28 | 2002-11-30 | 2002 | 1 | |
| Bradninch Guildhall | Bradninch Guildhall | England, Bradninch | 2007-12-07 | -- | 2007 | 1 | |
| Bradford Grammar School | Bradford Grammar School | England, Bradford, Keighley Rd | 2006-11-03 | 2006-11-03 | 2006 | 1 | |
| Bradford | Bradford | England, Bradford | -- | -- | | | |
| Blackfriars Arts Centre | Blackfriars Arts Centre | England, Boston, Spain Lane | 1985-02-09 | -- | 1985–1999 | 3 | |
| Birmingham Repertory Theatre | Birmingham Repertory Theatre | England, Birmingham, Broad Street | 1913-05-10 | 2008-03-29 | 1913–2008 | 29 | |
| Bedford Theatre | Bedford Theatre | England, Bedford, Bedford School, De Pary's Avenue | 2014-09-30 | 2014-09-20 | 2014 | 1 | |
| Bridge Lane Theatre | Bridge Lane Theatre | England, Battersea, Bridge Lane | 1992-- | -- | 1992 | 1 | |
| Barnet Copthall Centre, The | The Barnet Copthall Centre | England, Barnet, London Borough | 1999-06-29 | -- | 1999 | 1 | |
| Benjamín Carrión de Loja, Teatro Nacional | Teatro Nacional Benjamín Carrión de Loja | Ecuador, Loja, Salvador Bustamante Celi | 2018-11-24 | 2018-11-25 | 2018 | 1 | |
| Bramstrup | Bramstrup | Denmark, Årslev, Bramstrup 1 | 2006-08-18 | 2006-08-19 | 2006 | 1 | |
| BaggårdTeatret | BaggårdTeatret | Denmark, Svendborg, Caroline Amalie Vej 26 | 1991-04-11 | 2015-10-24 | 1991–2015 | 2 | |
| Bornholms teaterforening | Bornholms teaterforening | Denmark, Rønne, Slippen 1 | 1925-04-06 | -- | 1925–2018 | 2 | |
| Brandts Klædefabrik | Brandts Klædefabrik | Denmark, Odense, Brandts Passage 8,2, | 2013-08-29 | -- | 2013 | 1 | |
| Borupgårdteatret | Borupgårdteatret | Denmark, Helsingør, Havnepladsen 1 | 2002-03-22 | 2009-12-03 | 2002–2009 | 4 | |
| Betty Nansen Teatret | Betty Nansen Teatret | Denmark, Frederiksberg, Frederiksberg Alle 57 | 1917-10-30 | 2006-10-21 | 1917–2006 | 21 | |
| Bristol Music Centre's Teater | Bristol Music Centre's Teater | Denmark, Copenhagen, Frederiksberggade 25 | 1971-10-07 | -- | 1971–1981 | 3 | |
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