| Assisi Community Care Limited | Hospitality | 1985 |
| Assisted Individuals Respite and Care Ltd | Health & social care | 2018 |
| AST Swimschool Ltd | Administrative & support | 2017 |
| Atelier Upholstery Ltd | Manufacturing | 2025 |
| Athena Properties (SW) Limited | Real estate | 2014 |
| Athurst Digital Ltd | Arts & recreation | 2023 |
| Atlantic Bricklaying Company Ltd | Construction | 2016 |
| Atlantic Coast Express Ltd | Hospitality | 2007 |
| Atlantic Court (Ilfracombe) Management Company Ltd | Households | 2009 |
| Atlantic Formes Limited | Professional & scientific | 2005 |
| Atlantic Highway Groundworks Limited | Construction | 2005 |
| Atlantic Home Eyecare Limited | Health & social care | 2017 |
| Atoll Holdings Limited | Information & communication | 2013 |
| Atrium HR Consulting Ltd | Professional & scientific | 2016 |
| Atticus Building Contractors Ltd | Construction | 2009 |
| Auriga Leisure Limited | Hospitality | 2017 |
| Aurora Tans Ltd | Other services | 2017 |
| Automation Systems Integrators Limited | Information & communication | 2000 |
| Automobeel Ltd | Wholesale & retail | 2010 |
| Available People Ltd | Administrative & support | 2023 |
| AVL Marine Drive Management Company Limited | Households | 2018 |
| Avoir Property Limited | Real estate | 2013 |
| AWH Developments Ltd | Real estate | 2021 |
| Awlwood Joinery (North Devon) Limited | Manufacturing | 2003 |
| Axiom M&E Limited | Construction | 2026 |
| Ayrton Maisey Properties Ltd | Real estate | 2026 |
| Azat Services Ltd | Health & social care | 2023 |
| Azure Bay Woolacombe Ltd | Real estate | 2022 |
| B & R Water Engineering LLP | | 2023 |
| B J Williams & Sons Ltd | Construction | 2005 |
| B Line Taxis Ltd | Transport & logistics | 1998 |
| B T Landscaping and Construction Limited | Construction | 2023 |
| B.C. Autos SW Ltd | Wholesale & retail | 2017 |
| B4 Textile Consultancy Ltd | Professional & scientific | 2026 |
| Badger Van Hire Limited | Real estate | 2007 |
| Badgworthy Land Company Limited | Real estate | 1926 |
| Bagnall 2819 Company Limited | Administrative & support | 2019 |
| Bags of Style(Yorkshire) Limited | Wholesale & retail | 2018 |
| Balayage Ltd | Professional & scientific | 2022 |
| Balcondry Limited | Manufacturing | 2017 |
| Balloon Dog Limited | Extraterritorial | 1990 |
| Banfield Pilates P.T. Limited | Health & social care | 2015 |
| Bankbond Limited | Wholesale & retail | 2004 |
| Barefoot Creations Limited | Construction | 2021 |
| Bark N Play Ltd | Arts & recreation | 2026 |
| Barker Morris Limited | Construction | 2004 |
| Barle Industries Ltd | Other services | 2011 |
| Barnstaple & District Chamber of Commerce Limited | Other services | 2009 |
| Barnstaple Anaesthetists Group LLP | | 2025 |
| Barnstaple and North Devon Museum Development Trust | Arts & recreation | 2013 |
| Barnstaple Autocare Solutions Ltd | Wholesale & retail | 2005 |
| Barnstaple Boilers Ltd | Construction | 2026 |
| Barnstaple Buildings Preservation Trust | Construction | 2007 |
| Barnstaple BUS Station Cafe and Takeaway Limited | Hospitality | 2024 |
| Barnstaple Care Ltd | Health & social care | 2024 |
| Barnstaple Chiropractic Clinic Limited | Health & social care | 2006 |
| Barnstaple Equestrian Supplies Limited | Wholesale & retail | 2025 |
| Barnstaple Foods Station Ltd | Hospitality | 2025 |
| Barnstaple Kebab Ltd | Hospitality | 2024 |
| Barnstaple MOT Centre & Car Sales Ltd | Wholesale & retail | 2008 |
| Barnstaple Musical Comedy & Dramatic Society | Arts & recreation | 2006 |
| Barnstaple Strand Investments Limited | Real estate | 1960 |
| Barnstaple Youth House Youth Association | Health & social care | 2002 |
| Barrel Rock Limited | Other services | 2021 |
| Barron Property Group Ltd | Real estate | 2025 |
| Barrow Clark Complete Furnishers Limited | Wholesale & retail | 1965 |
| Barry Hews Automotive Services Limited | Manufacturing | 2005 |
| Bartlett Palmer Ltd | Construction | 2024 |
| Barton Close Management Company Limited | Households | 2022 |
| Barum Barbell Ltd | Arts & recreation | 2023 |
| Barum Cabs 2021 Ltd | Transport & logistics | 2021 |
| Barum Construction Ltd | Construction | 2023 |
| Barum Developments Ltd | Construction | 2024 |
| Barum Electronics Limited | Wholesale & retail | 2013 |
| Barum Engines Ltd | Manufacturing | 2016 |
| Barum Ltd | Transport & logistics | 2014 |
| Barum Property Ltd | Real estate | 2026 |
| Barum Sports Therapy Ltd | Arts & recreation | 2025 |
| Baseline Bunkerz Ltd | Administrative & support | 2025 |
| Bastin Day Westley Limited | Professional & scientific | 2015 |
| Bay Property Management Limited | Real estate | 2004 |
| Bay View Apartments Management Limited | Households | 2001 |
| Bay View Court Management Company Limited | Households | 1993 |
| Bayliss Builders Ltd | Construction | 2025 |
| Bayside Electricals Ltd | Construction | 2024 |
| BBS Computing Limited | Information & communication | 1994 |
| Bcuk Events Limited | Health & social care | 2021 |
| BDL Devon Limited | Extraterritorial | 2026 |
| BE Content Dining Limited | Hospitality | 2018 |
| Beaford Arts | Education | 1980 |
| Beats Workin Limited | Wholesale & retail | 2017 |
| BEC Ventures Limited | Hospitality | 1999 |
| Becleansolar Ltd | Administrative & support | 2026 |
| Beep Creative Studio Ltd | Professional & scientific | 2024 |
| Bejuju Estates Ltd | Construction | 2026 |
| Bella Pizza South West Limited | Hospitality | 2012 |
| Bellamy Property Solutions Limited | Construction | 2022 |
| Belly Fender (Holdings) Limited | Manufacturing | 2022 |
| Belly Fender Limited | Manufacturing | 2014 |
| BEN and Dayna Ivory Ltd | Professional & scientific | 2015 |