| Blue Hippo Ltd | Administrative & support | 2011 |
| Bluestack a V Limited | Information & communication | 2017 |
| Board Box Ltd | Administrative & support | 2026 |
| Bopsy Ltd | Extraterritorial | 2015 |
| Bove Moor Properties Ltd | Real estate | 2018 |
| Bower House Construction Limited | Manufacturing | 2009 |
| Bradlook Homes Limited | Construction | 1994 |
| Brbuilds Ltd | Construction | 2024 |
| Bridget Healing Centre Ltd | Health & social care | 1997 |
| Bridies Farm CIC | Agriculture & fishing | 2023 |
| Britmarl Property Co.Limited | Extraterritorial | 1971 |
| Brocook Ltd | Manufacturing | 2023 |
| Bubbles 'N Shakes Limited | Hospitality | 2024 |
| Bubwith Farm Management Company Limited | Professional & scientific | 2001 |
| Budiego Ltd | Professional & scientific | 2026 |
| Burns the Bread Limited | Manufacturing | 2011 |
| BUT First Productions Limited | Information & communication | 2004 |
| Butleigh (Management Company) Limited | Households | 2026 |
| BVG Accountancy Services Limited | Professional & scientific | 2012 |
| BØF Salt Aged Limited | Wholesale & retail | 2024 |
| C Lintern Ltd | Transport & logistics | 2018 |
| C R Edwards Ltd | Wholesale & retail | 2006 |
| C Sparks & Sons Limited | Transport & logistics | 1971 |
| C.R. Rapson Limited | Wholesale & retail | 1964 |
| C2LETS Limited | Real estate | 2025 |
| Caldera Property Ltd | Construction | 2026 |
| Candlelight Homecare Services Limited | Other services | 1998 |
| Caprice Motors Limited | Manufacturing | 2013 |
| Careco Solutions Limited | Health & social care | 2011 |
| Cargo Direct Ltd | Transport & logistics | 2014 |
| Castle Welding and Fabrication Limited | Manufacturing | 2002 |
| CBE Development Consultancy Ltd | Real estate | 2025 |
| Cecilia Jessie Madeleine Robertson Ltd | Extraterritorial | 2024 |
| Celtic Tiger Ltd | Information & communication | 2022 |
| Central Chemical Services Limited | Professional & scientific | 1987 |
| Chalice Financial Planning Limited | Financial services | 2023 |
| Chalice Park Management (Glastonbury) Limited | Real estate | 2015 |
| Chalice Well Bookshop Limited | Wholesale & retail | 1988 |
| Champagne Rugby Media Ltd | Professional & scientific | 2024 |
| Champion Orchid Care Limited | Health & social care | 2023 |
| Chanii B Limited | Administrative & support | 2008 |
| Chashymie Dwellings Ltd | Hospitality | 2026 |
| Chashymie Ltd. | Hospitality | 2026 |
| Children's World Enterprises Ltd. | Wholesale & retail | 1999 |
| Chilkwell Properties Limited | Real estate | 1964 |
| Chill Well Road Ltd | Real estate | 2023 |
| China Consultancy Services Ltd | Professional & scientific | 2010 |
| Chris Bodman Limited | Arts & recreation | 2017 |
| CIRRUS9 Consulting Ltd | Professional & scientific | 2026 |
| Clear Rising Consultancy Ltd | Professional & scientific | 2019 |
| Coffee Zero Ltd | Hospitality | 2020 |
| Coin for Change Ltd | Wholesale & retail | 2023 |
| Combined Trailer Services Limited | Transport & logistics | 2003 |
| Community Food Training Company Ltd. | Education | 2015 |
| Compton (Somerset) Commercial Sales Limited | Administrative & support | 1972 |
| Conscious Business Ltd. | Professional & scientific | 2013 |
| Contract Squared Limited | Information & communication | 2017 |
| Cookswood Estate Ltd | Extraterritorial | 2014 |
| Cookswood Holiday Retreat Limited | Extraterritorial | 2010 |
| Cookswood Management Limited | Real estate | 2026 |
| Cookswood Rentals Ltd | Extraterritorial | 2022 |
| Cookswood Utilities Ltd | Water & waste | 2026 |
| Cooper Cleaning Services and Facilities Management Ltd | Administrative & support | 2018 |
| Cooper Design Ltd | Arts & recreation | 2025 |
| Corks @ Kelways Ltd | Hospitality | 2022 |
| Correlation Machines Ltd | Information & communication | 2019 |
| Cotiviti Europe Limited | Information & communication | 1996 |
| Cotswold Marketing Limited | Professional & scientific | 2025 |
| Court Consultancy Bristol Limited | Professional & scientific | 2014 |
| Courtyard Books Ltd | Wholesale & retail | 2023 |
| COX & Baloney Ltd | Hospitality | 2019 |
| Coxwithy Properties Limited | Construction | 2024 |
| Crawford Estates (SW) Ltd | Real estate | 2014 |
| Creator Elevation Network Ltd | Information & communication | 2024 |
| Crikey Digital Media Ltd | Administrative & support | 2011 |
| Crisp & Harris Property Limited | Real estate | 1994 |
| Cruck Tent Limited | Manufacturing | 2018 |
| Crystal&Co Ltd | Wholesale & retail | 2021 |
| Culture Comms | Administrative & support | 2013 |
| Curtain Pole Interiors Ltd | Wholesale & retail | 2018 |
| CWS Engineering Limited | Manufacturing | 1986 |
| Cyber A.I. Group Ltd | Information & communication | 2025 |
| D J & C a Welch Limited | Construction | 2002 |
| D.P.D. Limited | Agriculture & fishing | 1999 |
| D.T.K. Plant Hire Ltd | Administrative & support | 2026 |
| Data Forage Limited | Professional & scientific | 2020 |
| Daveys Services Limited | Professional & scientific | 2018 |
| David Holland Ltd | Professional & scientific | 2005 |
| David Mccrum Limited | Professional & scientific | 2001 |
| Daynight Support Ltd | Extraterritorial | 2022 |
| Deadbeat Films Ltd. | Arts & recreation | 2014 |
| Deep Nature Retreat Centre Ltd. | Hospitality | 2017 |
| Demisiren Ltd | Wholesale & retail | 2025 |
| Denis J Vauclair Ltd | Construction | 2009 |
| Dials Green Developments Ltd | Construction | 2019 |
| Dicketts the Stationers Limited | Wholesale & retail | 2000 |
| Distinctive Country Furniture Limited | Manufacturing | 2003 |
| DKB Civils & Surveying Ltd | Construction | 2026 |
| Dorset Timber Engineering Ltd | Manufacturing | 2014 |
| Double Happiness Digital Ltd | Information & communication | 2017 |