| Bangor Football and Athletic Club Limited | Bangor | 1953 |
| Bangor Gymnastic Club | Bangor | 2015 |
| Bangor Leisure Ltd | Magherafelt | 2001 |
| Bangor-On-Dee Races Limited | Wrexham | 1987 |
| Bangy Entertainments Ltd | Liverpool | 2025 |
| Banister Park Bowling Club Limited | Southampton | 2023 |
| Banitasports Limited | Wigan | 2019 |
| Banjotait Limited | Southsea | 2023 |
| Bank Farm Riding School Limited | New Mills | 2001 |
| Bank Top Nature Reserve Ltd | Halifax | 2019 |
| Banked HQ Ltd | Aldridge | 2026 |
| Banks O'Dee Sports Club Limited | Aberdeen | 1997 |
| Bankside FC Limited | London | 2026 |
| Bankside Gallery (Trading) Limited | London | 1986 |
| Bankside Gallery Limited | London | 1985 |
| Bankside Open Spaces Trust | London | 2000 |
| Bankwell Services Limited | Halifax | 2005 |
| Bannatyne Fitness (2) Limited | Darlington | 2011 |
| Bannatyne Fitness Limited | Darlington | 1996 |
| Bannatyne's Health Club (Norwich West) Limited | Darlington | 2016 |
| Bannel Golf Range Ltd | Nr Chester | 2023 |
| Banner Productions Limited | London | 2005 |
| Banner Theatre Company Limited | Birmingham | 1980 |
| Bannerman Arts Ltd | Chessington | 2023 |
| Bannerman Digital Ltd | Edinburgh | 2014 |
| Bannfitzone Limited | Banbridge | 2016 |
| Banniuk FPV Futures Limited | Colchester | 2016 |
| Banq Studios Limited | Birmingham | 2024 |
| Banstead Athletic Community Football Club Limited | Warlingham | 2024 |
| Banstead Athletic Community Sports CIC | Tadworth | 2026 |
| Banstead Downs Golf Club Limited | Sutton | 2010 |
| Banstead Downs Lawn Tennis Club Limited | Banstead | 1999 |
| Banstead Neville Bowling Club Limited | Banstead Village | 2001 |
| Bantam of the Opera Choir Limited | Bradford | 2026 |
| Bantour Limited | Cobham | 2017 |
| Bantr Limited | Havant | 2023 |
| Bants and Bash Ltd | Manchester | 2024 |
| Bantu Casting Ltd | London | 2024 |
| Bantu Village CIC | London | 2019 |
| Banwell Football Club Ltd | Banwell | 2022 |
| Banwell Football Club Trading Limited | Banwell | 2022 |
| Banwell Industries Limited | Edinburgh | 2025 |
| Banwen Miners Hunt Limited | Neath | 2021 |
| Banwen Rugby Football and Social Club Limited | Neath | 2022 |
| Banya Ltd | London | 2024 |
| Banyan Arts Community Interest Company | Sunderland | 2017 |
| Banzai Action Sports Ltd. | Oxfordshire | 1998 |
| Banzai Bear Limited | Southwark | 2011 |
| Bar Bands Ltd | Clydebank | 2022 |
| Bar Bodiez Fitness Limited | Liverpool | 2018 |
| Bar Bollywood Ltd | Milton Keynes | 2023 |
| Bar Borough Calisthenics Ltd | Croydon | 2024 |
| Bar Brothers Fitness Ltd | Chelmsford | 2023 |
| Bar Hill Sporting (Doddington) Limited | Crewe | 2025 |
| Bar Hill Sporting Ltd | Crewe | 2022 |
| Bar Lane Community Sports Limited | Basford | 2013 |
| Bar Latina Ltd | London | 2022 |
| Bar None Fitness Ltd | London | 2020 |
| Bar Stool Preachers Limited | Worthing | 2018 |
| Bar VAR Productions Limited | London | 2008 |
| Bar-Belle's Ltd | Dronfield | 2025 |
| Bar-One Racing Limited | Stourbridge | 2004 |
| Baraka Massage & Training Ltd. | London | 2017 |
| Barakah Fitness Ltd | Wembley | 2023 |
| Barakah LDN CIC | London | 2024 |
| Barbae Ltd | Melbourne | 2015 |
| Barbanel Arts Ltd | London | 2025 |
| Barbara Cartland Productions Ltd | Hatfield | 2024 |
| Barbara Davies Limited | Brighton | 2006 |
| Barbara Jackson Theatre Arts Centre Ltd | Cleveleys | 2011 |
| Barbara Mutch UK Limited | London | 2018 |
| Barbara Myers Sculpture Limited | Manchester | 2011 |
| Barbara Nice Limited | Manchester | 2005 |
| Barbara Stogden Music Foundation | Cambridge | 2013 |
| Barbara Walden Glass Engraving Limited | Bournemouth | 2014 |
| Barbarian Studios Limited | Salisbury | 2025 |
| Barbed Films Ltd | London | 2023 |
| Barbell Coalition Limited | Nottingham | 2022 |
| Barbell Emporium Limited | Glasgow | 2015 |
| Barbell Lounge Ltd | Bromley | 2022 |
| Barbelle (Scarborough) Limited | Scarborough | 2017 |
| Barbelle and Nutrition Limited | Glasgow | 2015 |
| Barbelles Training Ltd | Gloucester | 2020 |
| Barbells and Bikes Ltd | London | 2026 |
| Barbershopogram Ltd | London | 2015 |
| Barbican Arts Group Trust | London | 2007 |
| Barbican Centre Trust Limited(The) | | 1985 |
| Barbican Lawn Tennis Club Limited(The) | London | 1986 |
| Barbican Spaces Ltd | London | 2025 |
| Barbican Theatre Productions Limited | London | 2015 |
| Barbican Theatre Trading Limited | Plymouth | 2004 |
| Barbon Hillclimb Limited | Windermere | 2008 |
| Barbour Amusements Ltd | Johnstone | 2025 |
| Barbourne Bowling Green Club,Limited(The) | Worcester | 1899 |
| Barbury Shooting School Limited | Swindon | 2019 |
| Barby Moorings Ltd | Rugby | 2008 |
| Barc (Croft) Limited | Hampshire | 1992 |
| Barc (Pembrey) Limited | Hampshire | 1989 |
| Barc (Thruxton) Limited | Andover | 1969 |
| Barc (Toca) Limited | Andover | 2004 |