| Campbell Jones Consulting Ltd | Wholesale & retail | 2025 |
| Caravan & Motorhome Solutions Limited | Manufacturing | 2010 |
| Card Internet Limited | Information & communication | 2020 |
| Carlota Payne Law Ltd | Professional & scientific | 2021 |
| Cartgate Lodge Limited | Hospitality | 2011 |
| Cashmaster Leasing Ltd | Financial services | 1984 |
| Castle LEA Ground Ltd | Agriculture & fishing | 2025 |
| Catrys Limited | Health & social care | 2018 |
| Cavendish Project Management Limited | Real estate | 2009 |
| Ccol Ltd | Wholesale & retail | 2019 |
| CDM Interiors Ltd | Construction | 2011 |
| Cedar Court (Martock) Management Limited | Households | 1992 |
| Central Acre Management (NO. 1) Limited | Households | 1984 |
| Central Acre Management (Yeovil) Limited | Households | 1986 |
| Central Motors (Chard) Holdings Ltd | Financial services | 2022 |
| Cerdic Foundries Limited | Manufacturing | 1970 |
| Chalamain Limited | Information & communication | 2025 |
| Chard Accident Repair Centre Ltd | Wholesale & retail | 2025 |
| Chard and District Carnival Committee Limited | Arts & recreation | 1996 |
| Chard Barber Ltd | Other services | 2026 |
| Chard Barber Shop Ltd | Other services | 2025 |
| Chard Burgers and Kababs Ltd | Hospitality | 2025 |
| Chard Community Hub CIC | Health & social care | 2022 |
| Chard Cricket Club Limited | Arts & recreation | 2019 |
| Chard Equestrian Limited | Arts & recreation | 2016 |
| Chard Independent School | Education | 2014 |
| Chard Italian Ltd | Hospitality | 2025 |
| Chard Motor Repairs Ltd | Wholesale & retail | 2024 |
| Chard Plant & Garden Centre Limited | Wholesale & retail | 2025 |
| Chard Town Football Club Limited | Arts & recreation | 2003 |
| Chardstock Management Services Limited | Professional & scientific | 2006 |
| Chataway House Management Company Limited | Real estate | 2018 |
| Checkpoint Chard Ltd | Extraterritorial | 2021 |
| Cheeky Jigglypuff Cards Limited | Wholesale & retail | 2026 |
| Chepstow Court (Yeovil) Residents Society Limited | Households | 1974 |
| Chop Chop Holdings Limited | Financial services | 2019 |
| Chun & SON Ltd | Hospitality | 2019 |
| Chunky Blocks Limited | Manufacturing | 2023 |
| Clarbull 1985 LP | | 2021 |
| Clare Property Holdings Ltd | Administrative & support | 2015 |
| Claremont Court Management (Taunton) Limited | Households | 1971 |
| Clarkes Court (Management Company) Limited | Households | 1995 |
| Client Consultants Limited | Information & communication | 2025 |
| Clifton Close Management Company Limited | Households | 1982 |
| Clive Gould Limited | Manufacturing | 2002 |
| Cmc-Couriers Limited | Transport & logistics | 2026 |
| Coach Court Management Limited | Professional & scientific | 2009 |
| Combe Street Flats (Chard) Limited | Households | 2003 |
| Combe Street Management Co Limited | Households | 2014 |
| Common Sense (UK) Ltd | Construction | 2010 |
| Company Administration and Secretarial Services Ltd | Professional & scientific | 1996 |
| Company Commerce | | 2006 |
| Compass External Property Services Ltd | Administrative & support | 2022 |
| Compass Hill House Management Limited | Households | 1993 |
| Concept Technology Ltd | Administrative & support | 2018 |
| Conifer Consultancy Services (CCS) Ltd | Information & communication | 2024 |
| Connected Naturally Limited | Education | 2011 |
| Conservice Limited | Energy | 1998 |
| Cooper Imaging Limited | Health & social care | 2023 |
| Coor Ltd | Wholesale & retail | 2024 |
| Corinium Private Medical Limited | Health & social care | 2025 |
| Cornwall Medicine Limited | Wholesale & retail | 2017 |
| Costa-Rocas Ltd | Transport & logistics | 2024 |
| Cotswold Vehicle Restorations Ltd | Wholesale & retail | 2018 |
| Court ASH House Management Company Limited | Real estate | 2014 |
| Craft OPS Consultancy Ltd | Administrative & support | 2025 |
| Crib 1958 Limited | Extraterritorial | 2015 |
| Cricket ST Thomas Country Inn Limited | Hospitality | 2026 |
| Cricket ST Thomas Equine Limited | Agriculture & fishing | 2015 |
| Cricket ST Thomas Golf & Country Club Limited | Arts & recreation | 2019 |
| Cricket ST. Thomas Estate Ltd. | Real estate | 1999 |
| Cricket ST. Thomas Golf Club Ltd | Arts & recreation | 2014 |
| Croscard Limited | Professional & scientific | 2003 |
| Cross Countryside Services Limited | Construction | 2023 |
| Croton’S Fencing and Groundworks Ltd | Construction | 2022 |
| Crowshute Centre Limited | Arts & recreation | 2009 |
| Crowstep BS Ltd | Construction | 2015 |
| Curry House Indian Restaurant Ltd | Hospitality | 2019 |
| D & N Developments (Somerset) Ltd | Construction | 2020 |
| D Cleaning Solutions Ltd | Administrative & support | 2024 |
| D Cloud Building Contractors Limited | Construction | 2011 |
| D M Crilly | Real estate | 2010 |
| D-Tail Projects Ltd | Information & communication | 2023 |
| Dada Check Eyes Limited | Wholesale & retail | 2025 |
| Dairy Court Management Company Limited | Households | 2021 |
| Danny's Garden Somerset Ltd | Hospitality | 2025 |
| Dare Studio Limited | Manufacturing | 2011 |
| Dargan Healthcare Limited | Health & social care | 2020 |
| Dargan Property Limited | Real estate | 2019 |
| Dart Medical Limited | Health & social care | 2022 |
| Dblh Limited | Real estate | 2012 |
| DDF Recovery Ltd | Wholesale & retail | 2026 |
| Debtassist.Uk Ltd | Health & social care | 2025 |
| Devon Belles Ltd | Arts & recreation | 2019 |
| Devon Truck Show Limited | Arts & recreation | 2020 |
| Digital Twins Solutions Limited | Administrative & support | 2025 |
| Dimpsey Ltd | Hospitality | 2011 |
| Dive Proof Ltd | Wholesale & retail | 2017 |
| Dkurup Limited | Health & social care | 2026 |
| DMS Construction and Renovation Limited | Construction | 2019 |