| Brantrake Spaces Ltd | Real estate | 2014 |
| Bratherhood Stays Ltd | Real estate | 2024 |
| Braundshill Holdings Limited | Real estate | 2017 |
| Braunton Holiday Lets Limited | Real estate | 2023 |
| Braveaid Parenting Limited | Health & social care | 2025 |
| Bravehawk Limited | Real estate | 2020 |
| Braveways Ltd | Construction | 1997 |
| Brbrco Ltd | Hospitality | 2020 |
| Brcs Consulting Limited | Financial services | 2019 |
| Breaking Rocks Ltd | Manufacturing | 2024 |
| Breal Capital Limited | Administrative & support | 2014 |
| Brendan House Engineering Limited | Construction | 2013 |
| Brent Leisure and Developments Ltd | Hospitality | 2021 |
| Brenton Property Holdings Ltd | Real estate | 2023 |
| Brereton Group Limited | Financial services | 2020 |
| Brett Darke Groundworks Limited | Construction | 2009 |
| Brett’S Storage Limited | Administrative & support | 2022 |
| BRG Marine Ltd | Wholesale & retail | 2024 |
| Brian Lafferty Transport Consultant Limited | Transport & logistics | 2023 |
| Brian Safety Services Ltd | Professional & scientific | 2026 |
| Brick House Vineyard Limited | Other services | 2016 |
| Brick-Clad Ltd | Extraterritorial | 2009 |
| Bricks Finance Holdings Limited | Financial services | 2024 |
| Bricks Finance Limited | Financial services | 2014 |
| Bricks Lending Ltd | Extraterritorial | 2024 |
| Bricks Loans Limited | Financial services | 2024 |
| Bricks-N-Sets Ltd | Wholesale & retail | 2025 |
| Bride Land Property Ltd | Real estate | 2022 |
| Brides at Waterfields Ltd | Wholesale & retail | 2021 |
| Bridford Inn Limited | Hospitality | 2012 |
| Bridge Connect Limited | Administrative & support | 2014 |
| Bridge Motorcycles Limited | Wholesale & retail | 1963 |
| Bridge Street House Management Ltd | Extraterritorial | 2024 |
| Bridgwater Investments Ltd | Real estate | 2024 |
| Bright Lights Marketing South West Limited | Professional & scientific | 2010 |
| Bright Star Living Ltd | Real estate | 2019 |
| Bright Steps Devon CIC | Health & social care | 2025 |
| Brighter Future Studio Limited | Arts & recreation | 2020 |
| Brightlight Capital Limited | Real estate | 2020 |
| Brightlight Property Ventures Limited | Real estate | 2020 |
| Brightscale Labs Limited | Information & communication | 2026 |
| Brightsea Limited | Manufacturing | 1991 |
| Brill Building Services Ltd | Construction | 2020 |
| Brill Holdings Limited | Professional & scientific | 2008 |
| Brilliant Rest Limited | Administrative & support | 2025 |
| Brimbles Barks Limited | Other services | 2024 |
| Bring ME Lunch Limited | Hospitality | 2008 |
| Brinsea E&M Services Ltd | Professional & scientific | 2017 |
| Bristol Industrial Heating Limited | Construction | 1971 |
| Bristol Meadery Company Ltd | Hospitality | 2016 |
| Bristol Oilskin & Overall Property Limited | Real estate | 2000 |
| Bristol Property Services (SW) Ltd | Real estate | 2024 |
| Bristol Storage Installations (SW) Limited | Transport & logistics | 2015 |
| Bristol Storage Racking Ltd | Transport & logistics | 2017 |
| Bristolpad Ltd | Real estate | 2014 |
| Bristow Consultancy Services Limited | Professional & scientific | 2019 |
| Britannia Towing Centre Limited | Wholesale & retail | 2003 |
| British & Irish Group for the Study of Personality Disorders | Other services | 2008 |
| British Herbal Medicine Association Limited(The) | Health & social care | 1971 |
| British Regional Airlines Limited | Transport & logistics | 1990 |
| British Waterbed Company Limited | Manufacturing | 1988 |
| Brittaine Investments Limited | Real estate | 2021 |
| Brittons ASH Garage Limited | Wholesale & retail | 2002 |
| Britvet Services Ltd | Administrative & support | 2013 |
| Brixton Spirits Limited | Wholesale & retail | 2019 |
| BRK 002 Limited | Energy | 2018 |
| BRM29 Ltd | Professional & scientific | 2023 |
| Broadclose Management Company Bude Limited | Real estate | 2006 |
| Broadfields Park Management Co., Limited. | Households | 1985 |
| Broadgate Property Management (Exeter) Limited | Real estate | 2010 |
| Broadley Court Management Company Limited | Real estate | 2001 |
| Broadmead Medical Services Ltd | Health & social care | 2024 |
| Broadoak Building Isca Limited | Extraterritorial | 2011 |
| Broadoak Developments SW Ltd | Real estate | 2025 |
| Broadoak Garage Limited | Wholesale & retail | 2006 |
| Broadoak Motor & Body Repair Ltd | Wholesale & retail | 2013 |
| Broadoak Projects Ltd | Professional & scientific | 2025 |
| Broadoak Services (SW) Limited | Construction | 2009 |
| Broadreach House | Health & social care | 1982 |
| Broadside Angle Limited | Agriculture & fishing | 2020 |
| Broadview Computer Systems Limited | | 1982 |
| Brocks Fireplaces and Stoves Limited | Wholesale & retail | 2011 |
| Brody's (Exeter) Limited | Hospitality | 2012 |
| Bronte Gardens Limited | Health & social care | 2004 |
| Brook Guitars Limited | Manufacturing | 2016 |
| Brook Midas Limited | Financial services | 2020 |
| Brooklands (Howden) Estate Management Limited | Real estate | 2005 |
| Brooklands Events & Marquees Ltd | Other services | 2015 |
| Brookleigh RTM Company Limited | Real estate | 2005 |
| Broomham Estates Limited | Agriculture & fishing | 1986 |
| Brown Dog Properties Ltd | Construction | 2018 |
| Browns Court Management Company Limited | Households | 1988 |
| Brown`S the Word Limited | Information & communication | 2006 |
| Bruadair Consultancy and Training Ltd | Professional & scientific | 2016 |
| Brumers Bikes Limited | Wholesale & retail | 2014 |
| Brunel View (SW) Ltd | Hospitality | 2026 |
| Brunel View Ltd | Hospitality | 2022 |
| Bruno Trading Limited | Administrative & support | 2011 |
| Brunswick Wharf Bideford Management Company Limited | Real estate | 2025 |
| Bryson Solutions Ltd | Administrative & support | 2025 |