| C&H Packaging Ltd | Administrative & support | 2024 |
| C&K Property Refurbs Ltd | Households | 2025 |
| C&K Russell Ltd | Hospitality | 2026 |
| C&R Accountancy Services Limited | Professional & scientific | 2019 |
| C&S Properties (North West) Ltd | Real estate | 2025 |
| C-Star Group Limited | Real estate | 2024 |
| C. Roberts Limited | Construction | 2005 |
| C.Mchugh Services Ltd | Administrative & support | 2023 |
| C.Rushton UK Ltd | Manufacturing | 2025 |
| C23 Investments Ltd | Real estate | 2023 |
| Cable Holt Limited | Professional & scientific | 2003 |
| Cable Network Services Limited | Construction | 2018 |
| Cable Road Studios Limited | Information & communication | 2020 |
| CAC Advisory Ltd | Professional & scientific | 2019 |
| Cactus ADS Ltd | Professional & scientific | 2023 |
| CAD 'N' Engineer Services Limited | Professional & scientific | 2022 |
| CAD Contracting and Developments Ltd | Construction | 2018 |
| CAD Property Developments Limited | Real estate | 2018 |
| CAD Station Limited | Professional & scientific | 2024 |
| Cadcam Educators Hub Ltd | Professional & scientific | 2024 |
| Cadden Landscapes Ltd | Administrative & support | 2021 |
| Cadoline Limited | Wholesale & retail | 2016 |
| Cadoline Properties Limited | Real estate | 2024 |
| CAF Designs Limited | Administrative & support | 2007 |
| Cafe AU Lait Accounting Services Limited | Professional & scientific | 2014 |
| Cafe BLU Wirral Limited | Hospitality | 2019 |
| Cafezinho Limited | Hospitality | 2009 |
| Café Crush Limited | Hospitality | 2023 |
| Cain of Heswall Limited | Wholesale & retail | 1963 |
| Cairns Callaghan Limited | Professional & scientific | 2006 |
| Calciatore Ltd | Wholesale & retail | 2022 |
| Calday Fundraising Ltd | Education | 2015 |
| Calday Grange Grammar School | Education | 2012 |
| Calder Management Limited | Professional & scientific | 2000 |
| Caldy Conservation Limited | Real estate | 2013 |
| Caldy Golf Club,Limited(The) | Arts & recreation | 1924 |
| Caldy Mews Management Company Limited | Health & social care | 2005 |
| Caldy Wealth Management Ltd | Professional & scientific | 2019 |
| Calibrate Technology Limited | Professional & scientific | 2022 |
| Callida Finance Group Ltd | Financial services | 2022 |
| Callida Property Group Ltd | Extraterritorial | 2022 |
| Callum Walsh Construction Ltd | Construction | 2024 |
| Calm by Nature Limited | Wholesale & retail | 2023 |
| Calm in the Village Ltd | Real estate | 2023 |
| Calqrisk (UK) Limited | Information & communication | 2017 |
| Calum French Boxing Coach Community Interest Company | Arts & recreation | 2025 |
| Camalex Business Limited | Professional & scientific | 2014 |
| Camalex Services Limited | Professional & scientific | 2023 |
| Cambridge & Associates Ltd | Professional & scientific | 2014 |
| Cambridge Court (Ellesmere Port) Limited | Households | 2004 |
| Camburg Collective Ltd | Other services | 2017 |
| Cameron Grace Construction Limited | Financial services | 2025 |
| Cameron Grace Properties Limited | Real estate | 2017 |
| Cameron Marketing Limited | Professional & scientific | 2018 |
| Camille Standen Ltd | Professional & scientific | 2023 |
| Campbell Lets Ltd | Extraterritorial | 2019 |
| Campfire I.T. Ltd | Administrative & support | 2018 |
| Campion Consultancy Ltd | Administrative & support | 2018 |
| Campion Solicitors Limited | Professional & scientific | 2014 |
| CAN DO Food Club CIC | Wholesale & retail | 2021 |
| Candia and Crete Towers (Freehold) Limited | Households | 2015 |
| Candia and Crete Towers (Management) Limited | Households | 2015 |
| Cannxtra Ltd | Wholesale & retail | 2020 |
| Canticum Scholae (Song School) UK Ltd | Education | 2023 |
| Cap-J Holdings Ltd | Real estate | 2016 |
| Capability Limited | Information & communication | 2010 |
| Cape Automation Ltd | Professional & scientific | 2014 |
| Capelli Salon Couture Limited | Other services | 2019 |
| Capital Kebab Wirral Ltd | Hospitality | 2024 |
| Capital Paraplanning Solutions Ltd | Professional & scientific | 2022 |
| Capital Reinforcing Ltd | Manufacturing | 2015 |
| Capitol Cleaning Company (North West) Limited | Other services | 1993 |
| Capseca Limited | Professional & scientific | 2023 |
| Car Hospitals Limited | Wholesale & retail | 1998 |
| Car Screen City Ltd | Wholesale & retail | 2025 |
| Carad Ltd | Information & communication | 2021 |
| Carbon Developments Wirral Ltd | Construction | 2022 |
| Carbon IT Sales Ltd | Wholesale & retail | 2014 |
| Carbon Mantra Limited | Professional & scientific | 2025 |
| Carbon Zero Construction Services Limited | Construction | 2024 |
| Cardea Financial Consulting Limited | Professional & scientific | 2020 |
| Cardecu Limited | Real estate | 1995 |
| Cardiac Remote Management Ltd | Health & social care | 2018 |
| Cardiac Rhythm Health Ltd | Health & social care | 2023 |
| Cards N Candy (Wirral) Limited | Wholesale & retail | 2010 |
| Care at Home Group Ltd | Health & social care | 2004 |
| Care Comparison UK Ltd | Health & social care | 2025 |
| Care Free Maintenance Limited | Construction | 2019 |
| Care Group Services Ltd | Health & social care | 2025 |
| Careconnect Solutions Limited | Wholesale & retail | 2024 |
| Carew Properties Ltd | Real estate | 2013 |
| Carfax Abbey Properties Limited | Real estate | 2003 |
| Caring Futures Ltd | Professional & scientific | 2020 |
| Carista Limited | Real estate | 2009 |
| Carl Ward Installations Ltd | Construction | 2024 |
| Carmac Properties Ltd | Real estate | 2026 |
| Carmet TUG Company Limited | Transport & logistics | 1973 |
| Carnaby and Jones Limited | Real estate | 2016 |
| Carnow Limited | Wholesale & retail | 2017 |
| Caroline Gardens Management Limited | Real estate | 1994 |