| Cherry PIE International Limited | Hospitality | 2016 |
| Chescombe Limited | Hospitality | 1992 |
| Cheswood Limited | Real estate | 2016 |
| Chilcote House Limited | Households | 1989 |
| Chillman Consulting Ltd | Professional & scientific | 2024 |
| China Garden Torquay Ltd | Hospitality | 2022 |
| Chippies and Brickies South West Limited | Construction | 2024 |
| Chippies Plaice (UK) Limited | Hospitality | 2025 |
| Chiro 4U Ltd | Health & social care | 2003 |
| Chiselcraft Ltd | Wholesale & retail | 2009 |
| Chishomes Limited | Construction | 1993 |
| Chivers Upholstery Limited | Other services | 1998 |
| Chocella Limited | Hospitality | 2017 |
| Choco Banter Ltd | Manufacturing | 2023 |
| Choice Retirement Home Limited | Health & social care | 2019 |
| Chris Hoyle Marine Limited | Manufacturing | 2003 |
| Chris Labdon Limited | Professional & scientific | 2004 |
| Chris Siddall Consulting Ltd | Professional & scientific | 2015 |
| Chrisianne Limited | Wholesale & retail | 2022 |
| Christine Court (Paignton) Management Company Limited | Households | 1991 |
| Chub Logistics Ltd | Transport & logistics | 2023 |
| Chudley & Co Accountants Ltd | Professional & scientific | 2008 |
| Church and Associates Trading Ltd | Construction | 2024 |
| Church Park (Newton Abbot) Management Company Limited | Households | 2018 |
| Churston Court (Devon) Limited | Hospitality | 2022 |
| Churston Court Hotels Limited | Hospitality | 1969 |
| Cinestron Ltd | Information & communication | 2017 |
| Cinnamon & Olives Limited | Hospitality | 2024 |
| Citrus Care Ltd | Health & social care | 2026 |
| City Heights (Exeter) Limited | Administrative & support | 2010 |
| City Heights (Exeter) RTM Company Limited | Households | 2010 |
| CJ Distributions Ltd | Wholesale & retail | 2025 |
| CJH Thomas Limited | Real estate | 2024 |
| Cj’S Autos (SW) Limited | Wholesale & retail | 2024 |
| Claire Court (Torquay) Management Company Limited | Households | 1988 |
| Clann Care Partners Ltd | Health & social care | 2026 |
| Clarendon Court (Paignton) Management Company Limited | Households | 1992 |
| Clarendon Management Company (Torquay) Limited | Households | 1988 |
| Clarke Residential Ltd | Real estate | 2025 |
| Clawhill Properties Limited | Real estate | 2020 |
| Clay Lane Management Company Limited | Households | 2011 |
| CLB & SK Partnership Ltd | Construction | 2026 |
| Clean Home Protec Limited | Construction | 2015 |
| Clean IT ALL Limited | Administrative & support | 1999 |
| Clean Livin Rentals Ltd | Hospitality | 2020 |
| Clear Earth Management Ltd | Water & waste | 2019 |
| Clear Panel Solutions Limited | Information & communication | 2017 |
| Clear Vision Marketing 2026 Ltd | Professional & scientific | 2026 |
| Clearnest Ltd | Real estate | 2024 |
| Clearwater Financial Limited | Financial services | 2005 |
| Cleve Court Management Company Limited | Households | 1991 |
| Cleveland Court Management (Paignton) Limited | Households | 2003 |
| Cleveland Court Management Ltd | Households | 2020 |
| Cleveland Flats Management Company Limited | Households | 2023 |
| Cliff Court (Dawlish) Management Company Limited | Households | 1993 |
| Cliff House Management (Torquay) Limited | Households | 2021 |
| Cliff House Paignton Management Company Limited | Households | 1968 |
| Clifton Terrace Management Company Limited | Households | 1990 |
| Climate Advisory Limited | Information & communication | 2020 |
| Climb Technology Limited | Information & communication | 2013 |
| Climbing MAE Ltd | Information & communication | 2019 |
| Clinical Expert Witness Solutions Ltd | Health & social care | 2024 |
| Clinical Informatics and Transformation Partners Limited | Professional & scientific | 2026 |
| CLOUD9COMPETITONS Limited | Other services | 2024 |
| Club TQ Limited | Information & communication | 2016 |
| Clyde House Management (Torquay) Limited | Real estate | 2001 |
| Clyst Mews Management Co Ltd | Real estate | 2013 |
| CM Digital Innovations Limited | Professional & scientific | 2016 |
| CM International Solutions Limited | Construction | 2019 |
| CO-ORDIN8 Torbay CIC | Health & social care | 2023 |
| Coach House Enterprises Limited | Administrative & support | 2010 |
| Coached to Confidence Ltd | Education | 2024 |
| Coactive Care Limited | Administrative & support | 2020 |
| Coast Boat Trips Ltd | Transport & logistics | 2020 |
| Coastal Building Design Limited | Professional & scientific | 2013 |
| Coastal Medical Ltd | Health & social care | 2024 |
| Coastal Waters ( UK ) Ltd | Real estate | 2023 |
| Coastline (Paignton) Management Company Limited | Hospitality | 2014 |
| Coastline Building Solutions Limited | Construction | 2026 |
| Coburg Rock Ltd | Real estate | 2020 |
| Cochin Hypermart Limited | Wholesale & retail | 2025 |
| Cockington Makers CIC | Wholesale & retail | 2025 |
| Cocktails & Haybales Ltd | Hospitality | 2025 |
| Cocoon & YOU Limited | Manufacturing | 2019 |
| Coffee Riviera Ltd | Hospitality | 2023 |
| Coffeeworks Limited | Hospitality | 2005 |
| Coiso Ltd | Information & communication | 2020 |
| Cojoc Ltd | Professional & scientific | 2010 |
| COLDSKY3 Ltd | Professional & scientific | 2024 |
| Coleridge Management (Chillington) Limited | Administrative & support | 1997 |
| Colin Howe Limited | Extraterritorial | 2021 |
| Collation Holding Limited | Hospitality | 2019 |
| Collaton House Management Company (Torquay) Limited | Real estate | 2000 |
| Collect & PAY Limited | Administrative & support | 2011 |
| Colleton House Management Company Limited | Administrative & support | 2006 |
| Collingwood Management Company (Torquay) Ltd | Households | 2025 |
| Colmord Limited | Real estate | 1998 |
| Colourbox Interiors Ltd | Construction | 2019 |
| Colwyn Court Management Company Limited | Real estate | 1982 |
| Combe Pafford School | Education | 2013 |