| Clifton Village Fish Bar Limited | Hospitality | 2007 |
| Clifton Village Greengrocers Ltd | Wholesale & retail | 2026 |
| Clifton Village Properties Limited | Real estate | 2012 |
| Clifton Vision Ltd | Wholesale & retail | 2026 |
| Clifton Wealth Management Limited | Professional & scientific | 2019 |
| Clifton Wealth Partnership (Stroud) Ltd | Financial services | 2000 |
| Clifton Wealth Partnership Ltd | Financial services | 2011 |
| Clifton Wealth Partnership Portishead Limited | Financial services | 2017 |
| Clifton Wholefood Ltd | Wholesale & retail | 2021 |
| Cliftonbridge Care Limited | Health & social care | 2025 |
| Cliftons and Butlers (Students) Limited | Households | 2023 |
| Cliftons and Butlers Limited | Real estate | 2022 |
| Cliftons Estate Agents Limited | Real estate | 2009 |
| Cliftons Independent Business Centres (3OC) Limited | Real estate | 2018 |
| Cliftons Independent Business Centres (5PP) Ltd | Real estate | 2019 |
| Cliftons Independent Business Centres (69OR) Limited | Real estate | 2020 |
| Cliftons Independent Business Centres (71QR) Limited | Real estate | 2020 |
| Cliftonsushi Ltd | Hospitality | 2022 |
| Cliftonvale Investments Limited | Real estate | 2012 |
| Cliftonvalley Apartments Limited | Real estate | 2018 |
| Cliftonvalley Limited | Information & communication | 2010 |
| Cliftonvalley Management Limited | Real estate | 2020 |
| Cliftonvalley Property Limited | Real estate | 2017 |
| Cliftonwhite Properties Limited | Real estate | 1972 |
| Cliftonwood (Bristol) Management Company Limited | Households | 2009 |
| Cliftonwood Enterprises Ltd | Hospitality | 2025 |
| Cliftonwood Terrace Residents Association Limited | Households | 2006 |
| Cliftonwood Terrace Roadway Limited | Households | 2002 |
| CLIM8RISK Ltd | Information & communication | 2026 |
| Climabox Ltd | Manufacturing | 2023 |
| Climacool Limited | Administrative & support | 2014 |
| Climate Action Thornbury and Surrounding Areas CIC | Professional & scientific | 2024 |
| Climate AI Limited | Information & communication | 2021 |
| Climate Change Careers Ltd | Information & communication | 2020 |
| Climate Create Limited | Professional & scientific | 2024 |
| Climate Joy CIC | Professional & scientific | 2026 |
| Climate Performance Practice Ltd | Professional & scientific | 2024 |
| Climate Play Ltd | Professional & scientific | 2023 |
| Climate Risk Services Ltd | Other services | 2021 |
| Climate Wise (UK) CIC | Administrative & support | 2020 |
| Climate Works Limited | Professional & scientific | 2019 |
| Climbing Wall Solutions Limited | Manufacturing | 2007 |
| Clinical Gold Limited | Public administration | 2024 |
| Clinical Labs Group Limited | Health & social care | 2026 |
| Clinical Neuropsychology Limited | Health & social care | 2012 |
| Clinical Press Limited | Information & communication | 1987 |
| Clinical Psychology Bristol Limited | Health & social care | 2016 |
| Cliniciv Ltd | Other services | 2024 |
| Clinipower Avonmouth LLP | | 2013 |
| Clinipower Limited | Water & waste | 2012 |
| Cliniqon Ltd | Health & social care | 2021 |
| Cliniscope Consultancy Ltd | Information & communication | 2025 |
| Clinkclink Limited | Professional & scientific | 2006 |
| Clinkclink Ventures Ltd | Professional & scientific | 2022 |
| Clint Diffin Engineering Ltd | Professional & scientific | 2025 |
| Clip International Limited | Professional & scientific | 1979 |
| Clip Limited | Administrative & support | 1968 |
| Clip N Climb Bristol Limited | Arts & recreation | 2015 |
| Clipmatic Ltd | Manufacturing | 2018 |
| Clipper Properties Limited | Real estate | 1993 |
| Clippy Skating Ltd | Manufacturing | 2024 |
| Clive Anstey Aviation Limited | Manufacturing | 2024 |
| CLM Holdings Limited | Real estate | 2016 |
| Clmpro Entertainment Ltd | Arts & recreation | 2021 |
| CLN Properties Limited | Real estate | 2022 |
| Clochan Property Ltd | Real estate | 2024 |
| Clock Tower Dental Care Limited | Health & social care | 2012 |
| Clock Vision Ltd | Professional & scientific | 2021 |
| Clockhouse Properties Limited | Real estate | 2013 |
| Clockwise Media Ltd | Information & communication | 2008 |
| Clockwork IT Limited | Information & communication | 2003 |
| Clockwork Systems UK Limited | Information & communication | 2026 |
| Clode Family LLP | | 2025 |
| Cloisters Developments Limited | Construction | 2021 |
| Cloisters Equestrian Ltd | Wholesale & retail | 2021 |
| Cloisters Property Management Company Limited (the) | Households | 1974 |
| Cloo Entertainment Ltd | Arts & recreation | 2025 |
| Close Advisors Ltd | Administrative & support | 2025 |
| Close Cloud Ltd | Professional & scientific | 2020 |
| Closer Each Day Company | Arts & recreation | 2016 |
| Cloud 9 Tatu Ltd. | Arts & recreation | 2019 |
| Cloud Accounts Online Limited | Professional & scientific | 2018 |
| Cloud Consulting Group Ltd | Information & communication | 2022 |
| Cloud Digi Tech Ltd | Information & communication | 2022 |
| Cloud Dynamic Solutions Ltd | Information & communication | 2026 |
| Cloud Echo Ltd | Administrative & support | 2016 |
| Cloud Embedded Services Limited | Information & communication | 2015 |
| Cloud Hill Commercials Limited | Wholesale & retail | 2012 |
| Cloud IT Solutions (Bristol) Ltd. | Information & communication | 2019 |
| Cloud Mechanics Ltd | Information & communication | 2015 |
| Cloud N9NE Design Ltd | Manufacturing | 2023 |
| Cloud Native Recruitment Ltd | Administrative & support | 2020 |
| Cloud Sparrow Limited | Wholesale & retail | 2024 |
| Cloud Sundial Limited | Information & communication | 2022 |
| Cloud Test Limited | Information & communication | 2013 |
| Cloud Web Solutions Limited | Information & communication | 2015 |
| Cloud-Sentry Limited | Information & communication | 2018 |
| CLOUD9 Aspirational Property & Management Ltd | Real estate | 2012 |
| CLOUD9LIFE Ltd | Professional & scientific | 2022 |
| Cloudinnovex Ltd | Information & communication | 2025 |