| Caple Appliances Ltd | Extraterritorial | 1980 |
| Caple Construction Limited | Construction | 2007 |
| Caple Furniture Ltd | Professional & scientific | 1977 |
| Caple Sinks Ltd. | Extraterritorial | 1973 |
| Caple Taps Ltd. | Wholesale & retail | 1989 |
| Capo Customs Ltd | Professional & scientific | 2020 |
| Capoeira Angola Bristol CIC | Administrative & support | 2017 |
| Capoflow AI Limited | Professional & scientific | 2025 |
| Cappadocia Restaurant Bristol Ltd | Hospitality | 2023 |
| Cappards Farm Management Company Limited | Households | 2004 |
| Cappella Ltd | Hospitality | 2023 |
| Cappri Holdings Limited | Financial services | 2025 |
| Cappri Property Group Limited | Households | 2025 |
| Capra Falconeri Security Ltd | Administrative & support | 2022 |
| Capri Analytics Ltd | Information & communication | 2024 |
| Capricorn Broadcast Services Limited | Information & communication | 2007 |
| Capricorn Car Parts Limited | Wholesale & retail | 1992 |
| Capricorn Complete Services Limited | Construction | 2016 |
| Capsa Software Ltd | Information & communication | 2024 |
| Capstone AI Ltd | Information & communication | 2024 |
| Capstone Entertainment Ltd | Arts & recreation | 2021 |
| Captain App Ltd | Information & communication | 2021 |
| Captain Barbers Ltd | Other services | 2018 |
| Captain's House Pendeen Ltd | Real estate | 2021 |
| Captains Rest Management Company Limited | Households | 2014 |
| Captains TM Ltd | Wholesale & retail | 2016 |
| Captel Limited | Professional & scientific | 2016 |
| Captivate Circular Limited | Professional & scientific | 2023 |
| Capture Fire and Security Ltd | Construction | 2026 |
| Capture Investments Ltd | Administrative & support | 2018 |
| Car & Commercial Deliveries Co.Limited | Transport & logistics | 1960 |
| Car and Van Key Services Ltd | Other services | 2020 |
| Car Care Centre Bristol Ltd | Wholesale & retail | 2025 |
| Car City Bristol Limited | Wholesale & retail | 2010 |
| Car Components Limited | Wholesale & retail | 2014 |
| Car Paint Medics Limited | Wholesale & retail | 2011 |
| Car Paint Warehouse Limited | Wholesale & retail | 2000 |
| Car Park Management Services (Cpms) Ltd | Administrative & support | 2014 |
| Car Repair Miloo Ltd | Manufacturing | 2017 |
| Car Select SW Ltd | Wholesale & retail | 2024 |
| Car Solutions Claimz Ltd | Wholesale & retail | 2013 |
| Car Star Ltd | Wholesale & retail | 2024 |
| Car Valeting Bristol Ltd | Other services | 2022 |
| Car'Man Autobodies Ltd | Wholesale & retail | 2018 |
| Car-N-Key Limited | Wholesale & retail | 2018 |
| Car-Wizard Ltd | Wholesale & retail | 2018 |
| Caracalla Limited | Other services | 2012 |
| Caracola Limited | Hospitality | 2024 |
| Caramel Restaurant Ltd | Hospitality | 2022 |
| Carand Transport Ltd | Transport & logistics | 2021 |
| Caravanhire Limited | Hospitality | 2016 |
| Caravella Consultants Limited | Administrative & support | 2013 |
| Carbaf Properties Limited | Real estate | 2011 |
| Carbometrics Limited | Professional & scientific | 2018 |
| Carbon Activated Ltd | Manufacturing | 2011 |
| Carbon Free Group C.I.C. | Administrative & support | 2008 |
| Carbon Gold Limited | Manufacturing | 2007 |
| Carbon Neutral Consulting Ltd | Construction | 2024 |
| Carbon Rewild Ltd | Professional & scientific | 2022 |
| Carbon Route Ltd | Professional & scientific | 2023 |
| Carbon Zero Clothing Limited | Wholesale & retail | 2021 |
| Carbon-Adjust Limited | Wholesale & retail | 2025 |
| Carbontime Limited | Professional & scientific | 2005 |
| Carco Limited | Wholesale & retail | 1989 |
| Carcraft Bristol Ltd | Wholesale & retail | 2012 |
| Card Magic Limited | Wholesale & retail | 2024 |
| Card Shack Limited | Wholesale & retail | 2018 |
| Cardboard Adventures Ltd | Arts & recreation | 2023 |
| Cardboard Productions Ltd | Arts & recreation | 2024 |
| Cardens Pension Trustees Limited | Financial services | 1995 |
| Carder Creations Limited | Households | 2022 |
| Carder Designs Ltd | Wholesale & retail | 2023 |
| Cardiac Health and Performance Limited | Health & social care | 2017 |
| Cardiff 3D Printing Services Ltd | Manufacturing | 2023 |
| Cardiff Air Conditioning Ltd | Energy | 2025 |
| Cardiff North Limited | Other services | 1992 |
| Cardiff Pet Health Limited | Extraterritorial | 2008 |
| Cardiff Star Property Ltd | Real estate | 2025 |
| Cardiff Stone Construction Ltd | Construction | 2024 |
| Cardiff Traders Tavern Limited | Hospitality | 2018 |
| Cardiff University Pension Fund Trustee Limited | Financial services | 2025 |
| Cardinal Capital Group Ltd | Financial services | 2023 |
| Cardinal Fuels Ltd | Wholesale & retail | 2018 |
| Cardinal Props Ltd | Real estate | 2026 |
| Cardiokey Limited | Health & social care | 2023 |
| Cardiolectus Limited | Health & social care | 2014 |
| Cardioscanuk Ltd | Health & social care | 2023 |
| Cardiovascular Performance Diagnostics Limited | Health & social care | 2010 |
| Cardon Cleaning Services Limited | Administrative & support | 2023 |
| Cards & More TCG Ltd | Wholesale & retail | 2025 |
| Cardys Constructions Ltd | Extraterritorial | 2026 |
| Care & Support West Limited | Other services | 2013 |
| Care + Mobility (Bath) Limited | Wholesale & retail | 2001 |
| Care Advisory & Respite Experts Ltd | Health & social care | 2019 |
| Care and Connection Community Interest Company | Health & social care | 2025 |
| Care and Respite Experts Recruitment Services Limited | Administrative & support | 2019 |
| Care Assured Solutions Ltd | Health & social care | 2025 |
| Care Comes First Ltd | Health & social care | 2017 |
| Care Construction (Bristol) Limited | Construction | 2017 |
| Care Construction (South West) Limited | Construction | 2010 |