| Chilli Property Group Limited | Real estate | 2023 |
| Chilli Property Limited | Professional & scientific | 2024 |
| Chillitek Ltd | Professional & scientific | 2022 |
| Chillway Express Specials Limited | Transport & logistics | 2003 |
| Chilly Devs Ltd | Professional & scientific | 2025 |
| Chiltern Hills Security Ltd | Extraterritorial | 2021 |
| Chiltern Securities Limited | Construction | 1995 |
| Chiltern Venison Ltd | Hospitality | 2023 |
| Chilton People Limited | Professional & scientific | 2017 |
| Chilton Waters Management Company (Chilton Trinity) Limited | Households | 2015 |
| Chimamandam Ltd | Health & social care | 2022 |
| Chime Accountants Limited | Professional & scientific | 2020 |
| Chime Search Ltd | Administrative & support | 2025 |
| Chimestone Property Developments Limited | Construction | 1995 |
| Chimney Centres (Engineering) Limited | Construction | 1994 |
| Chimney Centres Limited | Administrative & support | 2011 |
| CHIMNEY2SWEEP Ltd | Administrative & support | 2026 |
| CHIMS286 Ltd | Hospitality | 2022 |
| China UK Top Talents Union Limited | Real estate | 2020 |
| Chinese Beauti Hair Ltd | Other services | 2025 |
| Chinese Gourmet Kitchen Limited | Hospitality | 2018 |
| Chinese Health & Spa Ltd | Other services | 2022 |
| Chin’S Beauty Bar Ltd | Other services | 2024 |
| Chippenham Land Limited | Construction | 2021 |
| Chipper Limited | Administrative & support | 2015 |
| Chipper Properties Ltd | Construction | 2025 |
| Chippie 2000 Limited | Construction | 2005 |
| Chipping House Ltd | Professional & scientific | 2019 |
| Chipping Norton Veterinary Services Limited | Professional & scientific | 2006 |
| Chipping Sodbury Developments Limited | Construction | 2003 |
| Chipping Sodbury Digger Hire Limited | Administrative & support | 2022 |
| Chipping Sodbury Glass (Bristol) Limited | Construction | 2013 |
| Chipping Sodbury Holdings Limited | Real estate | 2022 |
| Chipping Sodbury Kitchens Limited | Wholesale & retail | 2000 |
| Chipping Sodbury Motocross Club | Arts & recreation | 2004 |
| Chipping Sodbury Taxis (2017) Limited | Transport & logistics | 2017 |
| Chippo Care Ltd | Health & social care | 2019 |
| Chiralcentre Ltd | Manufacturing | 2024 |
| Chiron Plumbing & Heating Ltd | Construction | 2026 |
| Chiropractic Health Limited | Health & social care | 2000 |
| Chiryo Light Therapy Ltd | Wholesale & retail | 2024 |
| Chiryo Ltd | Wholesale & retail | 2024 |
| Chiryo Outcomes and Intervention Services Ltd | Administrative & support | 2026 |
| Chithiram Limited | Wholesale & retail | 2024 |
| Chittering Solar Limited | Energy | 2011 |
| Chitu Express Limited | Other services | 2020 |
| Chiu Sons & Co Ltd | Hospitality | 2021 |
| Chiverton Building and Maintenance Limited | Construction | 2024 |
| Chiverton Properties Ltd | Real estate | 2019 |
| Chizzy Kenny Limited | Health & social care | 2014 |
| Chloe Mary Ltd | Professional & scientific | 2026 |
| Chloe's Property Ltd | Real estate | 2023 |
| Chmp Properties Ltd | Construction | 2025 |
| CHO LA Change Management Limited | Information & communication | 2019 |
| Choate Management Company (Axbridge) Limited | Households | 1982 |
| Choc & Co Limited | Administrative & support | 2025 |
| Chocho Property Ltd | Real estate | 2025 |
| Chohs Ltd | Health & social care | 2007 |
| Choice Carpets of Bristol Ltd | Wholesale & retail | 2007 |
| Choice Creative Development Ltd | Professional & scientific | 2020 |
| Choice Networks Limited | Construction | 2018 |
| Choice TV Rentals Ltd | Administrative & support | 2008 |
| Cholmondeley Films Limited | Information & communication | 2005 |
| Cholo.Design Ltd | Arts & recreation | 2012 |
| Cholwell Farms Limited | Agriculture & fishing | 1961 |
| Choosen Breed Ltd | Health & social care | 2022 |
| Chop Chop Software Limited | Information & communication | 2007 |
| Chora Consulting Limited | Professional & scientific | 2014 |
| Chorus Global Holdings Limited | Information & communication | 2018 |
| Chorus IT Limited | Information & communication | 1999 |
| Chorus Solutions Ltd. | Information & communication | 2010 |
| Chorus Systems Ltd | Information & communication | 2026 |
| Chridansea Limited | Real estate | 2022 |
| Chridea Limited | Real estate | 2021 |
| Chris & Sarah James Limited | Professional & scientific | 2010 |
| Chris Barrow Lighting Limited | Information & communication | 2014 |
| Chris Berridge Ltd | Professional & scientific | 2016 |
| Chris Boddy Copywriting Limited | Other services | 2011 |
| Chris Britton Landscape Associates Ltd | Professional & scientific | 2012 |
| Chris Brooks Design Ltd | Professional & scientific | 1997 |
| Chris Brown Concrete Pumping Limited | Extraterritorial | 2018 |
| Chris Bull Solutions Limited | Professional & scientific | 2011 |
| Chris Carter Design Limited | Professional & scientific | 2016 |
| Chris Chapman (South West) Limited | Transport & logistics | 2016 |
| Chris Clarke DO Ltd | Wholesale & retail | 2023 |
| Chris Clarke Web Services Limited | Professional & scientific | 2017 |
| Chris Collier Coaching & Consulting Ltd | Administrative & support | 2025 |
| Chris Coombs Plumbing & Heating Limited | Construction | 2013 |
| Chris Dickason Ltd | Arts & recreation | 2014 |
| Chris Fayers Consulting Ltd | Professional & scientific | 2014 |
| Chris Gardner Services Ltd | Construction | 2012 |
| Chris Goodsall Architects Limited | Professional & scientific | 2011 |
| Chris Grimes LLP | | 2014 |
| Chris Guest Print Store Ltd | Arts & recreation | 2018 |
| Chris Guest Studios Ltd | Arts & recreation | 2025 |
| Chris Holt Consultancy Limited | Professional & scientific | 2007 |
| Chris M-S Consultants Ltd | Professional & scientific | 2023 |
| Chris Madden Cars Limited | Wholesale & retail | 2011 |
| Chris Moore Productions Ltd | Information & communication | 2019 |
| Chris Patch Bricklaying & Pointing Ltd | Construction | 2024 |