| Bittaford Car Sales Ltd | Wholesale & retail | 2025 |
| Bittaford Consulting Limited | Professional & scientific | 2015 |
| BK Décor Limited | Construction | 2026 |
| Blachford Development Company Limited | Construction | 2017 |
| Blackrush Properties Ltd | Real estate | 2021 |
| Blacksmith (SW) Ltd | Manufacturing | 2020 |
| Blue Plate (Downderry) Limited | Hospitality | 2015 |
| Blue Thunder Events Ltd | Arts & recreation | 2020 |
| Blue Thunder Group Ltd | Transport & logistics | 2020 |
| Blue Thunder Sound Ltd | Arts & recreation | 2020 |
| Bluetech Systems International Ltd | Manufacturing | 2016 |
| Blythe Spirit Partners Company Ltd | Real estate | 2016 |
| Blythin Construction Management (Lincs) Limited | Construction | 2019 |
| BM Influencer Limited | Professional & scientific | 2020 |
| Board of Games Ltd | Wholesale & retail | 2026 |
| Body Remedies Limited | Health & social care | 2024 |
| Boilertech (SW) Limited | Construction | 2012 |
| Boilertech Mechanical SW Limited | Construction | 2018 |
| Boilertech Services Ltd | Construction | 2024 |
| Borough Cheese Company Limited | Wholesale & retail | 2003 |
| Bostock's Garden Centre Limited | Wholesale & retail | 2003 |
| Bourne Corporate Solutions Ltd | Professional & scientific | 2026 |
| Bournemouth Canoes Ltd | Wholesale & retail | 2002 |
| Bowker Refrigeration Limited | Energy | 2006 |
| BR Plastering & Building Ltd | Construction | 2025 |
| Brackenhill Glamping Limited | Hospitality | 2018 |
| Bretonside Properties Limited | Households | 1973 |
| Briant's Amusements Ltd | Arts & recreation | 2025 |
| Briar & Cleeve Ltd | Real estate | 2024 |
| Brighton Canoes Ltd | Wholesale & retail | 2004 |
| Broad Reach Consulting (Devon) Limited | Professional & scientific | 2017 |
| Brock Construction SW Ltd | Construction | 2021 |
| Brook Forge Developments Limited | Construction | 2018 |
| Brook Forge Farriers Limited | Other services | 2018 |
| Brook Utilities Ltd | Construction | 2017 |
| Brooke House (Modbury) Management Co Limited | Real estate | 2010 |
| Brooklands Cottages Ltd | Hospitality | 2025 |
| Brooklands Management & Developments Ltd | Construction | 2025 |
| Brooks Design Engineering Ltd | Professional & scientific | 2003 |
| Brookshaw Building / Decs Limited | Construction | 2023 |
| Brown COW Dairy Limited | Agriculture & fishing | 2026 |
| Brownston Art Ltd | Wholesale & retail | 2025 |
| Brunel Building Surveyors Ltd | Professional & scientific | 2022 |
| Brunel Trading SW Ltd | Real estate | 2024 |
| Buckers Ltd | Information & communication | 2021 |
| Bullaven Farm Management Limited | Agriculture & fishing | 2024 |
| Bulldog Waste and Services Ltd | Water & waste | 2025 |
| Burc Lanka Ltd | Education | 2023 |
| Butler Property Services Limited | Construction | 2023 |
| Butter Mill Cottages Limited | Households | 2026 |
| Butterdon Transformation Solutions Ltd | Other services | 2026 |
| BV Environmental Limited | Professional & scientific | 2001 |
| BWA Tiling Ltd | Construction | 2026 |
| BWF Construction Services Limited | Construction | 2010 |
| BYC Surgery Limited | Health & social care | 2018 |
| C a Print & Stationers Limited | Manufacturing | 1997 |
| C Roberts Electrical Contractor Ltd | Construction | 2020 |
| Cadomai Bookeeping Services Limited | Professional & scientific | 2013 |
| Cafe Fleur Limited | Hospitality | 2018 |
| Calancombe Estate Holdings Ltd | Agriculture & fishing | 2015 |
| Cameron Weldon Digital Limited | Information & communication | 2023 |
| Candid Commercial Limited | Information & communication | 2017 |
| Canoe & Kayak Distribution Limited | Wholesale & retail | 2014 |
| Canoe Shops UK (2014) Limited | Financial services | 2014 |
| Capital Letter Signs Ltd | Professional & scientific | 2024 |
| Cara-Doc Limited | Manufacturing | 2014 |
| Catalyst Management Services Ltd. | Administrative & support | 2012 |
| Catling Construction Ltd | Construction | 2011 |
| Cavaro Design and Build Ltd | Manufacturing | 2025 |
| CC Precision Engineering Ltd | Manufacturing | 2026 |
| Cedarwood Montessori Ltd | Health & social care | 2020 |
| Ceroc Devon Limited | Education | 2018 |
| Cfarer Services Ltd | Professional & scientific | 2024 |
| Cfarertax Ltd | Professional & scientific | 2024 |
| Chain Commander Ltd | Real estate | 2025 |
| Challices Devon Limited | Wholesale & retail | 2025 |
| Cheltenham & Gloucester Canoes Ltd | Extraterritorial | 2016 |
| Chique Home Living Limited | Professional & scientific | 2025 |
| Chocolate Kisses Ltd | Wholesale & retail | 2025 |
| Christopher's (South Hams) Ltd | Real estate | 2021 |
| Church House Estates Limited | Households | 2026 |
| Church House Property Group Limited | Financial services | 2026 |
| City Ebikez Limited | Wholesale & retail | 2019 |
| City to Sea Property Services Ltd | Public administration | 2026 |
| CJ Haigh Consulting Limited | Information & communication | 2020 |
| Clampwing Limited | Arts & recreation | 2025 |
| Classic Bookshelf Ltd | Information & communication | 2000 |
| Clear Path Testing Devon Ltd | Professional & scientific | 2025 |
| Clear Vent Ltd | Administrative & support | 2017 |
| Clemes Carpentry & Construction Ltd | Construction | 2025 |
| Clinical Roofing Systems Limited | Construction | 2022 |
| Cliniprompt Ltd | Information & communication | 2023 |
| Clubandcountry Limited | Wholesale & retail | 2025 |
| CM B2B Ltd | Information & communication | 2025 |
| Cmaxfieldpubs Ltd | Hospitality | 2019 |
| Coached by Lils Limited | Other services | 2023 |
| Coast & Country Dining Ltd | Hospitality | 2023 |
| Coast Inventories Limited | Other services | 2024 |
| Coast Student Inventories Limited | Other services | 2025 |
| Coast to Coast South West Limited | Construction | 2000 |