| Bridgelease Holdings Limited | Financial services | 2021 |
| Bridgelease Limited | Real estate | 1997 |
| Briec Nettoyage Limited | Administrative & support | 2012 |
| Bright Mobile Apps Ltd | Information & communication | 2015 |
| Bright Star Lettings & Property Management Limited | Households | 2025 |
| Brimley Tracey (Management Company) Limited | Real estate | 1983 |
| Bristol Austin Seven Club Limited | Arts & recreation | 1981 |
| Bristow & Cale Estates Ltd | Real estate | 2021 |
| Brit Manufacturing Solutions Limited | Manufacturing | 2012 |
| Britannia of Beesands Ltd | Agriculture & fishing | 2019 |
| Britash Ltd | Manufacturing | 2026 |
| British Gateway Ltd | Transport & logistics | 2025 |
| Brixham Archers C.I.C. | Other services | 2010 |
| Brixham Marina Village Management Company Limited | Households | 1990 |
| BRJ Quantity Surveying Limited | Professional & scientific | 2022 |
| Broadfield Securities Limited | Extraterritorial | 1960 |
| Broadgate Roofing Limited | Construction | 2017 |
| Broadhempston Properties Limited | Real estate | 2015 |
| Broadleigh Farm Park Ltd | Hospitality | 2017 |
| Broadmeade Court (Newton Abbot) Limited | Households | 1994 |
| Broadpark Court Management Company (Torquay) Limited | Extraterritorial | 2000 |
| Broadreeds Management Company Limited | Households | 1983 |
| Broadsands Court Management Company Limited | Households | 2004 |
| Broadthorne Limited | Professional & scientific | 2011 |
| Brodys Grill Ltd | Hospitality | 2019 |
| Brollie Paye Ltd | Professional & scientific | 2019 |
| Bronsea Bay Limited | Other services | 2025 |
| Bronshill Mews Management Company Limited | Households | 2000 |
| Brook Financial Advice Limited | Financial services | 1999 |
| Brookes Electrical Limited | Construction | 2017 |
| Brow & Co Studios Limited | Other services | 2019 |
| Browella Ltd | Administrative & support | 2015 |
| Browning Financial Planning Ltd | Professional & scientific | 2013 |
| Brows and Beauty Aesthetics Ltd | Other services | 2023 |
| Browse Bros Fisheries Limited | Agriculture & fishing | 2008 |
| Browse Bros Holdings Limited | Professional & scientific | 2008 |
| Brox Properties Ltd | Construction | 2021 |
| Brunswick Court (Torquay) Management Company Limited | Households | 1976 |
| BS Property Management (SW) Limited | Real estate | 2024 |
| BSL Capital Holdings Limited | Financial services | 2025 |
| Buckeridge Christian Education Trust | Education | 1978 |
| Buckland Properties (Devon) Limited | Construction | 1999 |
| Buddha Magar Ltd | Real estate | 2025 |
| Buddy, BO & Co. Ltd | Arts & recreation | 2015 |
| Bueno Productions Limited | Information & communication | 2005 |
| Bueno Publishing Limited | Extraterritorial | 2020 |
| Bugs Direct Limited | Arts & recreation | 2007 |
| Building Test Services Limited | Construction | 2007 |
| Building Torbay Limited | Construction | 2015 |
| Built by Monkey Ltd | Information & communication | 2022 |
| Bulleigh Barton Court Management Company Limited | Households | 1991 |
| Buller House Residents Association Limited | Households | 1993 |
| Bullion-Exchange LDN Ltd | Wholesale & retail | 2025 |
| Buoycatcher Ltd | Wholesale & retail | 2020 |
| Burlington House Management Company (Teignmouth) Limited | Households | 1988 |
| Burn IT Down Ltd | Arts & recreation | 2023 |
| Burnham House Management Company Limited | Hospitality | 2002 |
| Burrows Property Development(Sw) Ltd | Real estate | 2023 |
| Burton Hotel Brixham Limited | Hospitality | 2019 |
| Burton Jones Ltd | Real estate | 2022 |
| Burwood Place (Teignmouth) Management Limited | Real estate | 2006 |
| Buse Decoration Ltd | Construction | 2025 |
| Business and Marketing Solutions Ltd | Professional & scientific | 2022 |
| Business Corp Ltd | Other services | 2023 |
| Business Over Breakfast Southwest Limited | Other services | 2014 |
| Bussells Farm Management Company Limited | Households | 2015 |
| Butler & Butler (Holdings) Ltd | Financial services | 2011 |
| Butler Boatyards Limited | Manufacturing | 2025 |
| Buttice Limited | Hospitality | 2010 |
| Buttice Property Limited | Real estate | 2022 |
| Bvoy International Limited | Administrative & support | 2024 |
| BY Chef Rustem Ltd | Hospitality | 2021 |
| BYP Club Events Ltd | Arts & recreation | 2024 |
| BYP Live Ltd | Arts & recreation | 2021 |
| Byron Lodge Care Home Ltd | Health & social care | 2016 |
| C & a Consultants (Torquay) Limited | Construction | 1992 |
| C & C Investments (Torbay) Limited | Real estate | 2024 |
| C & D Associates (S.W.) Limited | Real estate | 1998 |
| C & D Howard LLP | | 2015 |
| C & M J Property Ltd | Construction | 2022 |
| C & R Windows (SW) Limited | Construction | 2017 |
| C & S Moore Investments Limited | Financial services | 2020 |
| C and L Team Limited | Extraterritorial | 2012 |
| C C G Decorators Limited | Construction | 2010 |
| C H Park Ltd | Administrative & support | 2020 |
| C Installer Limited | Construction | 2018 |
| C J Leonard Limited | Wholesale & retail | 2003 |
| C K Commercials Limited | Real estate | 2003 |
| C.J. Moore Limited | Construction | 2010 |
| C.J.P. Cotton Hair Limited | Other services | 2017 |
| C.L. Prior Limited | Professional & scientific | 1978 |
| C.P.S. Properties Limited | Real estate | 2000 |
| C.S.M Breakers Ltd | Wholesale & retail | 2025 |
| C2 Trading Ltd | Wholesale & retail | 2015 |
| Cabinet Nicolas Limited | Real estate | 2016 |
| CAE Smith Property Ltd | Real estate | 2025 |
| Calibri Properties (SW) Ltd | Real estate | 2021 |
| CAM Ellis Electrical Ltd | Construction | 2019 |
| Camille Remoroza Ltd | Wholesale & retail | 2021 |
| Cammann Holdings Limited | Financial services | 2020 |