| Carla Brown Limited | Wholesale & retail | 2017 |
| Carly Medical Limited | Health & social care | 2018 |
| Carman Friend Limited | Real estate | 2016 |
| Caroline Cook Ltd | Wholesale & retail | 2017 |
| Carolyn Ling Financial Planning Limited | Other services | 2011 |
| Carpark Chester Limited | Other services | 2023 |
| Carpatic Services Ltd | Administrative & support | 2025 |
| Carpenter-Hepton Limited | Real estate | 2019 |
| Carr Bank Properties Ltd | Real estate | 2019 |
| Carra Innovation Ltd | Professional & scientific | 2019 |
| Carreglwyd Camping Ltd | Hospitality | 2023 |
| Carreglwyd Commercial Events Ltd | Arts & recreation | 2014 |
| Carreglwyd Farming Ltd | Real estate | 2022 |
| Carrier Professional Services Ltd | Wholesale & retail | 2009 |
| Cars and Coffee Cheshire Limited | Professional & scientific | 2017 |
| CARS247 Ltd | Information & communication | 2017 |
| Carson Aviation Ltd | Transport & logistics | 2017 |
| Cartwright FIC Limited | Financial services | 2023 |
| Cartwright Fitness Limited | Wholesale & retail | 2013 |
| Cartwrights Waste Disposal Services Limited | Administrative & support | 1999 |
| Carwood Investments | Other services | 2023 |
| Casa Bathrooms Ltd | Construction | 2024 |
| Casa Community Ltd | Hospitality | 2025 |
| Casasonora Ltd | Arts & recreation | 2025 |
| Cases and Clues Ltd | Wholesale & retail | 2023 |
| Casita Property Management Company Limited | Households | 2023 |
| Casse Recruitment & Insourcing Ltd | Administrative & support | 2025 |
| Castaruma Ltd | Other services | 2024 |
| Castaway FLY Fishing Ltd | Wholesale & retail | 2025 |
| Castle Estates Block Management Ltd | Real estate | 2009 |
| Castle Keep (Northwich) Management Company Limited | Households | 2005 |
| Castle View Estate NW Ltd | Construction | 2026 |
| Castlebank Care Home Ltd. | Administrative & support | 2003 |
| Castlebar Park Limited | Professional & scientific | 2001 |
| Castletown Wealth (Holdings) Limited | Professional & scientific | 2017 |
| Castree Projects Limited | Manufacturing | 2013 |
| Casual Football Shirts Limited | Wholesale & retail | 2017 |
| Cat & Bear Properties Limited | Real estate | 2022 |
| Cat WEE Corner Ltd | Information & communication | 2012 |
| Catalyst Brands Collective Ltd | Professional & scientific | 2024 |
| Catalyst Consultancy Services Ltd | Professional & scientific | 2020 |
| Caterbim Ltd | Professional & scientific | 2024 |
| Catered by Crystal Ltd | Hospitality | 2026 |
| Cathys Sandwich Bar Limited | Hospitality | 2013 |
| Cattyum Limited | Manufacturing | 2023 |
| Cau'R Drws Homes Limited | Real estate | 2025 |
| Cavalcara Limited | Real estate | 2011 |
| Cavani of York Ltd | Wholesale & retail | 2025 |
| Cavendish Commercial Limited | Real estate | 1999 |
| Cavendish Estate Agents Limited | Real estate | 2022 |
| Cavendish Estates (Chester) Limited | Administrative & support | 2000 |
| Cavendish Place Hough Green Chester Management Company (2) Limited | Households | 2017 |
| Cavendish Rentals Limited | Real estate | 1998 |
| Cavendish Services UK Limited | Administrative & support | 1999 |
| Cawley (Chester) Limited | Financial services | 1960 |
| CB Living Ltd | Real estate | 2018 |
| CBG Group Holding Limited | Real estate | 2024 |
| CBH1 Limited | Construction | 2019 |
| CBN Consultancy Limited | Information & communication | 2022 |
| CBN Group Limited | Financial services | 2025 |
| Cbneurosurgery Limited | Health & social care | 2024 |
| CC Hub C.I.C. | Hospitality | 2022 |
| CC Images Limited | Other services | 2013 |
| CCB Property Partnership LLP | | 2004 |
| CCB Trading Group Limited | Professional & scientific | 1991 |
| Cccxxxiii 333 Limited | Real estate | 2024 |
| CCO Contractors Ltd | Construction | 2023 |
| CD Rentals Cheshire Limited | Real estate | 2022 |
| CEA Consulting Ltd | Information & communication | 2025 |
| CED Properties Ltd | Real estate | 2015 |
| Cedar Moor Ltd | Real estate | 2024 |
| Cedar View Pulford Limited | Households | 2024 |
| Cedars Lebanese Restaurant Limited | Hospitality | 2008 |
| Ceir PG Cars Limited | Transport & logistics | 2025 |
| Celf Greadigol Ltd | Wholesale & retail | 2025 |
| Celia Cummings Accounting Ltd | Information & communication | 2021 |
| Celica Ventures Limited | Real estate | 2000 |
| Cellar Chester Limited | Hospitality | 2013 |
| Celtic Sailing Limited | Hospitality | 1997 |
| Celura Global Ltd | Wholesale & retail | 2025 |
| Centaur Medical Services Ltd | Health & social care | 2019 |
| Centra Homes Limited | Real estate | 1997 |
| Central Agent Payment Services Ltd | Administrative & support | 2021 |
| Central Trinity Limited | Professional & scientific | 2016 |
| Central Urban Living Limited | Real estate | 2019 |
| Centurion House Management Chester Company Limited | Households | 2024 |
| Centurion Investments JS VII (UK) Ltd | Real estate | 2021 |
| Centurion Roofline Limited | Construction | 2025 |
| Centurion Technical Services Ltd | Information & communication | 2026 |
| CEP Telecoms Limited | Construction | 2022 |
| Ceres Agriculture Limited | Construction | 2016 |
| Ceres View Ltd | Real estate | 2025 |
| Cerreto Ltd | Wholesale & retail | 2023 |
| Certo MS Limited | Construction | 2020 |
| Certus Construction Solutions Limited | Professional & scientific | 2015 |
| Cervisia Consulting Ltd | Professional & scientific | 2024 |
| Cestria Properties Limited | Real estate | 2019 |
| Cestrian Business Sales Ltd | Administrative & support | 2012 |
| Cestrian Classics Ltd | Professional & scientific | 2014 |
| Cestrian Construction Ltd | Construction | 2015 |