| Brierley Building Contractors Limited | Construction | 2016 |
| Bright Path Psychology Ltd | Health & social care | 2024 |
| Brightability Ltd | Health & social care | 2024 |
| Brightstart Solar & Renewables Ltd | Professional & scientific | 2026 |
| Bristol Channel Charters Ltd | Arts & recreation | 2010 |
| Bristol Wagon and Carriage Works Limited | Construction | 2006 |
| Bristow's Plumbing and Heating Ltd | Construction | 2022 |
| Brites Automation Ltd | Information & communication | 2025 |
| British Ember Ltd | Agriculture & fishing | 2025 |
| British Marques Ltd | Professional & scientific | 2012 |
| Brook Street Leisure Limited | Real estate | 2020 |
| Brookdale Braunton Management Company Limited | Households | 2016 |
| Broomhill Devon Ltd | Agriculture & fishing | 2023 |
| Brownings Contracting Ltd | Construction | 2018 |
| Bruce Cain Stunts Ltd | Information & communication | 2025 |
| BRW Couriers Ltd | Professional & scientific | 2019 |
| BT Supply Chain Consulting Ltd | Professional & scientific | 2024 |
| Bubbles Tea House Limited | Hospitality | 2025 |
| Bude Eyecentre Limited | Health & social care | 2004 |
| Bugeesy Limited | Manufacturing | 2025 |
| Buildingsonline UK Limited | Information & communication | 2026 |
| Buildwest Ltd | Construction | 2012 |
| Burge Poultry Rearing Limited | Agriculture & fishing | 2016 |
| Burgun Engineering Limited | Construction | 2010 |
| Burgun Group Ltd | Financial services | 2024 |
| Burland Properties Ltd | Hospitality | 2025 |
| Burrington Property Services Limited | Real estate | 2016 |
| Burrough House Gardens Ltd | Real estate | 2016 |
| Business-Work-Ware Limited | Extraterritorial | 2009 |
| Bussandri Properties Ltd | Real estate | 2009 |
| Buzz Care Training Limited | Education | 2025 |
| Buzz Training Ltd | Professional & scientific | 2021 |
| BXS Fins Limited | Manufacturing | 2026 |
| C-Tec South West Ltd | Wholesale & retail | 2013 |
| C.A.M Electrical and Maintenance Contractors Limited | Construction | 2020 |
| CAA Solutions Ltd | Professional & scientific | 2026 |
| Caen Construction Ltd | Construction | 2022 |
| Caen House Management Company Limited | Households | 2023 |
| Cafe Lemon Tree Limited | Hospitality | 2026 |
| Cafe the Lemon Tree Ltd | Hospitality | 2022 |
| Caffe Delizia Limited | Wholesale & retail | 2009 |
| Café Finch Ltd | Hospitality | 2024 |
| Caillin Mathys Limited | Health & social care | 2022 |
| CAJ Limited | Wholesale & retail | 2007 |
| Call 4 Less Limited | Wholesale & retail | 2009 |
| Caller Financial Solutions Ltd | Financial services | 2011 |
| Cameron Electrical Services (SW) Ltd | Construction | 2021 |
| Cammarson Limited | Construction | 2008 |
| Canalside (Bude) Management Ltd | Households | 2019 |
| Candi Homes Ltd | Real estate | 2017 |
| Cane Properties Ltd | Real estate | 2021 |
| Capern Park Buckland Brewer Limited | Households | 2021 |
| Capner Property Developments Ltd | Real estate | 2006 |
| Caps Consulting Services Ltd | Professional & scientific | 2023 |
| Car Care Service Centres Limited | Wholesale & retail | 1998 |
| Carbon Savvy CIC | Professional & scientific | 2021 |
| Carder Technology Ltd | Manufacturing | 2013 |
| Carradale Farm Antiques Limited | Wholesale & retail | 2007 |
| CARRIER3PL Limited | Administrative & support | 2017 |
| Cars 2 Ones Action Ltd | Manufacturing | 2025 |
| Castle Developments (Devon) Ltd | Construction | 2017 |
| Castle Erectors Limited | Agriculture & fishing | 1996 |
| Castle Heights (Lynton) Limited | Households | 2009 |
| Castle Hill Energy Limited | Energy | 2007 |
| Castle Rigging Limited | Arts & recreation | 2010 |
| Castle Rock 2002 Management Limited | Real estate | 2002 |
| Catalyst Solutions UK Ltd | Professional & scientific | 2009 |
| Cato Emporia Ltd | Wholesale & retail | 2016 |
| Cato PM Ltd | Real estate | 2020 |
| Causeway Flooring Limited | Wholesale & retail | 2018 |
| Cavitool Ltd | Manufacturing | 2021 |
| CBH 2024 LLP | | 2024 |
| Cbhq Media Ltd | Information & communication | 2022 |
| Center Properties Limited | Construction | 1997 |
| Century Galleries Jewellers Limited | Wholesale & retail | 1999 |
| CG Cars Limited | Wholesale & retail | 2025 |
| CG Specialist Talent Limited | Other services | 2020 |
| CH Management Consulting Ltd | Professional & scientific | 2020 |
| Chalfont Farms Limited | Agriculture & fishing | 1986 |
| Challenge South West Limited | Arts & recreation | 2003 |
| Champagne 69 Ltd | Hospitality | 2025 |
| Chandlers Court Management Company Limited | Real estate | 1982 |
| Channel Finance Limited | | 1987 |
| Chapple Electrical Services Limited | Construction | 2009 |
| Chapter Care (North Devon) Limited | Health & social care | 2008 |
| Charis Consultants Limited | Professional & scientific | 2011 |
| Charley Klein Ltd | Professional & scientific | 2023 |
| Charterwell Limited | Real estate | 2010 |
| Charterwell Properties Ltd | Real estate | 2022 |
| Chartridan Limited | Professional & scientific | 2013 |
| Chatto MAN Company Limited | Households | 2021 |
| Cheerful Buddha Limited | Wholesale & retail | 2019 |
| Chelsea Quilt Company Limited | Extraterritorial | 1948 |
| Chequers Estate Agents (Barnstaple) Limited | Real estate | 2021 |
| Chevy Chase Ltd | Professional & scientific | 2023 |
| Cheyne Beach Villas Ltd | Real estate | 2018 |
| Chichester Homes Developments Limited | Construction | 2012 |
| Chicor Limited | Real estate | 1992 |
| Childrens Holiday Foundation North Devon | Health & social care | 2012 |
| Chivenor Developments Limited | Construction | 2015 |