| Cutmec Limited | Professional & scientific | 2012 |
| Cuts & Curls Limited | Other services | 2020 |
| Cutting & Carter Limited | Financial services | 2000 |
| Cutting Edge (Nailsea) Limited | Other services | 2018 |
| Cutworx Ltd | Construction | 2016 |
| Cutz N Fadez Ltd | Other services | 2017 |
| CVA Solutions Ltd | Extraterritorial | 2023 |
| CVB Healthcare Ltd | Health & social care | 2018 |
| CVB Homecare Ltd | Health & social care | 2022 |
| CVR Commercial Group Limited | Wholesale & retail | 2018 |
| CVR Refinishers Ltd | Wholesale & retail | 2016 |
| CVR Trailers (Bristol) Limited | Wholesale & retail | 2003 |
| CVS South Gloucestershire | Other services | 2003 |
| CW Bespoke Outdoor Ltd | Manufacturing | 2023 |
| CW Cleaning SVS Ltd | Administrative & support | 2025 |
| CW Consult Limited | Professional & scientific | 2011 |
| CW Electrical (Bristol) Limited | Construction | 2004 |
| CW Management Services Ltd | Professional & scientific | 2025 |
| CW Medical Solutions Limited | Health & social care | 2018 |
| CW Peking Inn Limited | Hospitality | 2021 |
| CW Renewable Energy Limited | Financial services | 2006 |
| CW2 Estates Limited | Real estate | 2020 |
| CW2 Quay Limited | Real estate | 2021 |
| CW2 Quay Management Limited | Real estate | 2023 |
| CWD Group Holdings Limited | Financial services | 2024 |
| CWF Vehicle Sales Ltd | Wholesale & retail | 2022 |
| CWG Design and Build Limited | Construction | 2007 |
| CWI Management Consultants Ltd | Professional & scientific | 2014 |
| Cwliz Care Ltd | Health & social care | 2022 |
| Cworks Coffee Limited | Wholesale & retail | 2025 |
| CWP Contracting Ltd | Information & communication | 2025 |
| Cwre Limited | Financial services | 2012 |
| CWS Lifting & Safety Ltd | Manufacturing | 2010 |
| CWS Sales Limited | Wholesale & retail | 2021 |
| Cwva Consulting Ltd | Professional & scientific | 2024 |
| CX Consultancy Limited | Information & communication | 2007 |
| CX2 UK Operations Limited | Manufacturing | 2025 |
| CXI Artha Ltd | Financial services | 2023 |
| Cxnspiracy Clothing Ltd | Manufacturing | 2020 |
| CY Engineering Ltd | Construction | 2025 |
| Cyan Executive Search Limited | Administrative & support | 2018 |
| Cyan Wealth Solutions Limited | Financial services | 2017 |
| Cyanc Ltd | Wholesale & retail | 2025 |
| Cyantrix Limited | Wholesale & retail | 2006 |
| Cyber TEC Security Ltd | Information & communication | 2018 |
| Cyberboard Limited | Information & communication | 2020 |
| Cyberfive Limited | Information & communication | 2015 |
| Cybersentinel Solutions Ltd | Information & communication | 2024 |
| Cybertime Technology Ltd | Information & communication | 2020 |
| Cybok CIC | Information & communication | 2024 |
| Cyboo Ltd | Professional & scientific | 2025 |
| Cycle the City Limited | Administrative & support | 2017 |
| Cyclomedica Pharmaceuticals Limited | Manufacturing | 2020 |
| Cyclomedica United Kingdom Limited | Manufacturing | 2019 |
| Cygnet Capital Limited | Real estate | 2006 |
| Cygnus Trading Ltd | Wholesale & retail | 2005 |
| CYI Services Limited | Arts & recreation | 2023 |
| Cykla Ltd | Information & communication | 2025 |
| Cynaptik Advisory Ltd | Information & communication | 2025 |
| Cyndee Faye Ltd | Other services | 2024 |
| Cynergy Network Group Ltd | Administrative & support | 2023 |
| Cynical Gaming Ltd | Information & communication | 2016 |
| Cyniq Ltd | Information & communication | 2026 |
| Cynon Power Limited | Energy | 2013 |
| Cynthia's Healthcare Ltd | Health & social care | 2019 |
| Cynthiahoyievents Ltd | Arts & recreation | 2022 |
| Cynus Ltd | Health & social care | 2013 |
| Cyool Fish Limited | Wholesale & retail | 2023 |
| Cypress Property Ltd | Real estate | 2024 |
| Cypress Rental Properties Ltd | Real estate | 2021 |
| Cypressa Limited | Financial services | 2005 |
| Cypressa M11 Limited | Financial services | 2021 |
| Cypressa M12 Limited | Financial services | 2021 |
| Cypressa M13 Limited | Financial services | 2021 |
| Cypressa M14 Limited | Financial services | 2021 |
| Cypressa M15 Limited | Financial services | 2021 |
| Cyprus Kitchen Ltd | Hospitality | 2015 |
| Cyril Dark & Sons Limited | Wholesale & retail | 1985 |
| Cyril Minns Engineering Limited | Manufacturing | 1989 |
| Cyril Minns Limited | Extraterritorial | 1982 |
| Cyrus Collective Recruitment Ltd | Administrative & support | 2025 |
| Cyrus Coxswain Ltd | Information & communication | 2023 |
| Cyrus Limited | Real estate | 1972 |
| CYT Software Ltd. | Information & communication | 2024 |
| CYZ Holdings Ltd | Real estate | 2020 |
| CYZ Software Consultancy Ltd | Wholesale & retail | 2023 |
| Czech & Slovak Community and School Bristol CIC | Education | 2019 |
| D & a Lets Limited | Real estate | 2021 |
| D & C Auto Services Ltd | Extraterritorial | 2020 |
| D & D Media Bristol Limited | Professional & scientific | 2019 |
| D & HJ Groundworks Ltd | Construction | 2024 |
| D & I Investments UK Limited | Construction | 2023 |
| D & L Cook Services Ltd | Financial services | 2018 |
| D & M (Bristol) Limited | Construction | 2019 |
| D & M Residentials Ltd | Real estate | 2025 |
| D & N Installations and Design Ltd | Professional & scientific | 2008 |
| D & P Lovell Limited | Wholesale & retail | 1995 |
| D & P Plastering Limited | Construction | 2007 |
| D & P R Tibbs & SON Limited | Agriculture & fishing | 2022 |
| D & R Building Services(Uk) Limited | Construction | 2019 |