| CAG Europe Ltd | Administrative & support | 2014 |
| Calderbank Commercial Management Limited | Professional & scientific | 2018 |
| Callum Woods Joinery & Building Limited | Construction | 2021 |
| Calm Developments Limited | Hospitality | 2017 |
| Calm Tides Limited | Wholesale & retail | 2024 |
| Calm Waves Ltd | Health & social care | 2026 |
| CAM Elite Ltd | Professional & scientific | 2023 |
| Campbell & Rowley Ltd | Hospitality | 2013 |
| Campbell and Taylor Developments Ltd | Construction | 2024 |
| Campus Financial Services Ltd | Financial services | 2013 |
| Capitelle Limited | Other services | 2020 |
| Caravan Park Maintenance Ltd | Hospitality | 2014 |
| Cardhu Developments Limited | Construction | 2013 |
| Care National Ltd | Health & social care | 2015 |
| Cark Manor Limited | Administrative & support | 2017 |
| Carl Woods Construction Master Builder Limited | Construction | 2013 |
| Carnatic Consultants Limited | Information & communication | 2015 |
| Carpe DM Ltd | Real estate | 2014 |
| Carter & Carter Financial Limited | Financial services | 2005 |
| Cartmell 1956 Limited | Extraterritorial | 2014 |
| Cartmell Court (Lytham ST. Annes) Limited | Households | 2003 |
| Cartmell Road 1957 Limited | Extraterritorial | 2014 |
| Casa Pilar Limited | Construction | 2002 |
| Cashchurn Ltd | Wholesale & retail | 2024 |
| Casswood Rentals Limited | Real estate | 2019 |
| Cast Consulting Ltd | Mining & quarrying | 2015 |
| Castlekealy Consulting Limited | Professional & scientific | 2017 |
| Catapult Design Limited | Extraterritorial | 2002 |
| Catapult Public Relations Limited | Professional & scientific | 1997 |
| Cccc Transport Ltd | Transport & logistics | 2026 |
| CCM Systems Ltd | Manufacturing | 2010 |
| CCN Properties Limited | Real estate | 2004 |
| CCQ Marine Limited | Professional & scientific | 2026 |
| CD Design Engineering Ltd | Professional & scientific | 2025 |
| CDS International Ltd | Construction | 2020 |
| CDS Invest Limited | Arts & recreation | 2017 |
| Ceased Trading 12272867 Ltd | Hospitality | 2019 |
| Centenary Mill Court (Preston) RTM Company Limited | Households | 2013 |
| Central House Media Ltd | Professional & scientific | 2020 |
| Century Healthcare 3 Limited | Health & social care | 2010 |
| Century Healthcare Management Services Ltd | Health & social care | 2017 |
| CGH Manchester Ltd | Professional & scientific | 2019 |
| Chameleon Events International Limited | Administrative & support | 2020 |
| Chameleon Events Ltd | Administrative & support | 2018 |
| Change Utilities Limited | Professional & scientific | 2025 |
| Chappell Construction and Maintenance Ltd | Construction | 2025 |
| Chappell Residential Ltd | Real estate | 2026 |
| Charles Owen Property Limited | Real estate | 2020 |
| Charley Webb Aesthetics Ltd | Other services | 2021 |
| Charlotte Designs Weddings and Events Limited | Professional & scientific | 2011 |
| Charlotte L Peters Ltd | Information & communication | 2017 |
| Charter Apartments Limited | Hospitality | 2010 |
| Cheaper Online Ltd | Wholesale & retail | 2006 |
| Checkmate Designs Limited | Other services | 1995 |
| Chenshaw Ltd | Administrative & support | 2017 |
| Cherry Marketing Services Ltd | Professional & scientific | 2024 |
| Cherry-Marton Flat Management Limited | Households | 1989 |
| Cheryl Bennison Enterprises Ltd | Professional & scientific | 2024 |
| Cheshire Padel Ltd | Arts & recreation | 2024 |
| Child Psych Limited | Health & social care | 2022 |
| Chloe Carter Ltd | Other services | 2021 |
| Chocolate Tower Kiosk Limited | Wholesale & retail | 2016 |
| Chowdhury Outside Catering Ltd | Hospitality | 2024 |
| Chris Greenwood Group Limited | Professional & scientific | 2026 |
| Chris Harrison Contractors Ltd | Construction | 2018 |
| Chris Harrison Properties Ltd | Real estate | 2021 |
| Chris Neil Holdings Ltd | Financial services | 2023 |
| Chris Taylor GAS Services Ltd | Construction | 2012 |
| Christian Integrated Services CIC | Health & social care | 2018 |
| Chunky Data Solutions Limited | Information & communication | 2015 |
| Civic Innovation CIC | Other services | 2024 |
| Civil Society Solutions Ltd | Administrative & support | 2012 |
| CJA SSC Limited | Education | 2022 |
| CJS Inspection Services Limited | Professional & scientific | 2025 |
| CK Funcastles Ltd | Administrative & support | 2014 |
| CK Secure Link Ltd | Administrative & support | 2026 |
| Claim and FIX Ltd | Other services | 2025 |
| Clarity Assets and Investments Ltd | Real estate | 2020 |
| Clark's Storage Ltd | Transport & logistics | 2020 |
| Clarkesconsult Limited | Administrative & support | 2022 |
| Claughton Mansions (Blackpool) Limited | Households | 2002 |
| Clayton's Jewellers Limited | Wholesale & retail | 2008 |
| Claytons Accountancy Services Limited | Professional & scientific | 2007 |
| Claytons Airports Ltd | Transport & logistics | 2023 |
| Clayton’S Accident Repair Centre Ltd | Wholesale & retail | 2021 |
| Clean My Golf Clubs Limited | Other services | 2022 |
| Clear Impact Consulting Ltd | Professional & scientific | 2021 |
| Clear Sports Management Limited | Professional & scientific | 2010 |
| Clear Sports Solutions Limited | Professional & scientific | 2008 |
| Clearfield Group Limited | Administrative & support | 2026 |
| Clement Court (Fairhaven) Limited | Administrative & support | 1967 |
| CLG Property Design Limited | Professional & scientific | 2025 |
| Clifford Plumbing & Heating Ltd | Construction | 2014 |
| Clifton Academy of Dance Drama & Music Limited | Arts & recreation | 2006 |
| Clifton Arms Hotel (Lytham) Ltd | Hospitality | 1993 |
| Clifton Arms Hotel Limited | Hospitality | 2017 |
| Clifton Court (Maintenance) Limited | Households | 1966 |
| Clifton Dental Clinic Limited | Health & social care | 2011 |
| Clifton Grange Limited | Financial services | 2020 |
| Clifton House Property Management Ltd | Households | 2011 |