| Caterbox Co. Ltd | Hospitality | 2026 |
| Cavendish Court (Widnes) Limited | Households | 1996 |
| CC Power Limited | Construction | 2011 |
| CCM Engineering Services Ltd | Professional & scientific | 2025 |
| CD Cooke Ltd | Other services | 2016 |
| Cedric Investments Limited | Real estate | 2025 |
| CEF Speakman Ltd | Professional & scientific | 2024 |
| Celeritas Group Ltd | Construction | 2025 |
| Cellar Handling (UK) Ltd | Manufacturing | 1996 |
| Celtic Cutaways Ltd | Professional & scientific | 2020 |
| Centurion Global Properties Ltd | Real estate | 2020 |
| Ceri Ellen School of Dance Ltd | Education | 2019 |
| Cetus Consulting Ltd | Professional & scientific | 2024 |
| CG Engineering Holdings Ltd | Real estate | 2024 |
| CH Joinery ( NW) Ltd | Construction | 2024 |
| Champion's Pizza Ltd | Hospitality | 2019 |
| Charlestown Estates Limited | Construction | 2011 |
| Charlie Clifford Scaffolding Sales Limited | Wholesale & retail | 2012 |
| Charnock Richard Developments Limited | Real estate | 2022 |
| Charnock Richard Developments Mangement Company Ltd | Households | 2024 |
| Checkmate Performance Solutions Limited | Wholesale & retail | 2004 |
| Cheeseburg Ltd | Hospitality | 2024 |
| Chef Barros Services Ltd | Hospitality | 2025 |
| Chemcare (Liverpool) Limited | Wholesale & retail | 2013 |
| Chemx Group Ltd | Professional & scientific | 2025 |
| Cheshire Bathrooms and Tiles Limited | Construction | 2015 |
| Cheshire Cars & Commercials Limited | Wholesale & retail | 2019 |
| Cheshire Cats' Property Ltd | Real estate | 2019 |
| Cheshire Cleaning and Facilities Management Ltd | Administrative & support | 2022 |
| Cheshire Control & Consultancy Limited | Real estate | 2014 |
| Cheshire EAR WAX Removal Limited | Health & social care | 2023 |
| Cheshire Freight Ltd | Transport & logistics | 2026 |
| Cheshire Heating Solutions Limited | Energy | 2019 |
| Cheshire Joinery Contractor Limited | Construction | 2015 |
| Cheshire Plumbing Supplies Limited | Wholesale & retail | 2006 |
| Cheshire Pressure Washing Limited | Construction | 2022 |
| Cheshire Property Services (NW) Limited | Real estate | 2006 |
| Cheshire Property Services Limited | Construction | 2019 |
| Cheshire Trade Group Ltd | Financial services | 2024 |
| Chester Boat Hire Ltd | Other services | 2014 |
| Chester Riverside Takeaway Limited | Hospitality | 2015 |
| Chestnut Independent Living Limited | Health & social care | 2024 |
| Chestnut Smile Centre Limited | Health & social care | 2025 |
| Chet Medical Services Ltd | Health & social care | 2022 |
| CHI Garden Limited | Hospitality | 2023 |
| Childsense Development Ltd | Education | 2026 |
| Childwall Fiveways Auto Centre Ltd | Wholesale & retail | 2017 |
| Childwall Settle Cars (NW) Limited | Transport & logistics | 2018 |
| Chinesegreatfood Ltd | Hospitality | 2019 |
| Chiqui Limited | Administrative & support | 2015 |
| CHL Mechanical Services Limited | Other services | 2023 |
| Cholak Ltd | Transport & logistics | 2017 |
| Chris Ramsden Consultancy Ltd | Professional & scientific | 2019 |
| Chris Ramsden Properties Limited | Construction | 2014 |
| Christe Holdings Ltd | Manufacturing | 2023 |
| Christine Pyke Media Limited | Education | 2014 |
| Chroma Creative Studio Ltd | Manufacturing | 2019 |
| Chrystal Palace Limited | Wholesale & retail | 2025 |
| CHS Services Ltd | Professional & scientific | 2019 |
| Church View Close Widnes Management Company Limited | Households | 2016 |
| Cinderbake Ltd | Manufacturing | 2023 |
| Circle of Support Ltd | Administrative & support | 2025 |
| Circuitpoint Limited | Wholesale & retail | 1987 |
| City Nails Ltd | Other services | 2025 |
| CJ Crew Ltd | Financial services | 2020 |
| CJC Direct Ltd | Wholesale & retail | 2026 |
| CJW North West Ltd | Construction | 2021 |
| CK Anson Limited | Real estate | 2025 |
| CK Done Limited | Real estate | 2010 |
| Claddagh Rose Properties Limited | Real estate | 2019 |
| Clan Contracting Limited | Construction | 1982 |
| Clark Transport Limited | Transport & logistics | 1953 |
| Clarkes Garden Services Ltd | Administrative & support | 2023 |
| Claudiu Haulage Ltd | Transport & logistics | 2015 |
| Clayton Optometric Services Limited | Wholesale & retail | 2006 |
| Clean Offshore Ltd | Professional & scientific | 2021 |
| Clean Renewable Solutions Limited | Construction | 2017 |
| Clear Pharmacy (Crewe) Limited | Wholesale & retail | 2013 |
| Clear Pharmacy (GB) Limited | Wholesale & retail | 2007 |
| Client Contract Services Limited | Administrative & support | 2016 |
| Clipston Estates Limited | Real estate | 2025 |
| CLOUD31 Limited | Information & communication | 2018 |
| Clsj Holdings Limited | Financial services | 2026 |
| Cmac Roofing and Cladding Ltd | Construction | 2025 |
| CMC9 Limited | Administrative & support | 2020 |
| CMS Garage Doors Limited | Manufacturing | 2019 |
| CMW (NW) Limited | Information & communication | 2026 |
| Cobir Group Limited | Real estate | 2024 |
| Colin Fowler Plant Services Ltd | Administrative & support | 2019 |
| Colin Neil Craig Limited | Extraterritorial | 2026 |
| Collect My Clothes Ltd | Water & waste | 2018 |
| Collectve Ltd | Information & communication | 2024 |
| Commercial Support Limited | Manufacturing | 2009 |
| Community Integrated Care | Health & social care | 1988 |
| Community Repair Solutions CIC | Other services | 2026 |
| Complete Environmental Services CES Ltd | Professional & scientific | 2019 |
| Complete Funding Solutions Limited | Financial services | 2017 |
| Complete Installations Ltd | Households | 2018 |
| Complete Performance Nutrition Limited | Health & social care | 2018 |
| Complete Vision Properties Ltd | Real estate | 2026 |