| Caroline Taylor Ltd | Other services | 2024 |
| Caroline's Music Time Ltd | Education | 2022 |
| Carr Farm Garden Centre Limited | Wholesale & retail | 2003 |
| Carr Lane Properties Limited | Real estate | 2005 |
| Carriages Wealth Management & Professional Services Ltd | Financial services | 2024 |
| Carrington House Heswall Management Company Limited | Real estate | 2020 |
| Carter Courier Services Ltd | Transport & logistics | 2025 |
| Carter Freight Ltd | Transport & logistics | 2015 |
| Carve Automation Limited | Professional & scientific | 2025 |
| Caselec Ltd | Construction | 2025 |
| Casey Limited | Water & waste | 2008 |
| Cashola Competitions Limited | Other services | 2024 |
| Castle Accessible Transport Ltd | Transport & logistics | 2018 |
| Castle Moat Normanton Ltd | Construction | 2021 |
| Castledene Property Management Ltd | Real estate | 2021 |
| Castlewood Construction Limited | Construction | 2003 |
| Cataleya Couture Limited | Wholesale & retail | 2025 |
| Catch UP Learning Ltd | Education | 2020 |
| Cater Kitchen Limited | Professional & scientific | 2015 |
| Cater Steel Ltd | Professional & scientific | 2014 |
| Catg Services UK Ltd | Professional & scientific | 2022 |
| Catia Interiors Ltd | Professional & scientific | 2016 |
| Catilize Ltd | Administrative & support | 2024 |
| Catokin Ltd | Real estate | 2012 |
| Catriona Leanne Ltd | Professional & scientific | 2018 |
| Catto Intervention Services Ltd | Administrative & support | 2026 |
| Cave of Programming Ltd | Information & communication | 2017 |
| Cavern Corner Ltd | Wholesale & retail | 2026 |
| CAW Lettings Limited | Real estate | 2017 |
| CAW Networks Ltd | Professional & scientific | 2018 |
| Cayley Estates Limited | Real estate | 2002 |
| CB Brickwork Contracting Limited | Construction | 2020 |
| CB Entertainment Law Limited | Professional & scientific | 2023 |
| CB Payroll Strategy Ltd | Professional & scientific | 2022 |
| CBA Investments Ltd | Real estate | 2018 |
| CBC Properties Ltd | Real estate | 2020 |
| CC Achiuwa &Co Limited | Real estate | 2026 |
| CC Private Finance Limited | Financial services | 2025 |
| Ccan Limited | Professional & scientific | 2024 |
| CCD Maintenance Ltd | Construction | 2023 |
| CCI Compliance Shield Ltd | Information & communication | 2026 |
| CCI Verify Limited | Administrative & support | 2016 |
| CCM (NW) Limited | Construction | 2018 |
| CCS Group NW Limited | Administrative & support | 2025 |
| Cctv Imaging Ltd | Administrative & support | 2021 |
| CCW Consulting Limited | Other services | 2017 |
| Cd&M Solutions Limited | Public administration | 2008 |
| Cdcl Property Ltd | Construction | 2021 |
| CDP Installations Limited | Construction | 2024 |
| CE Web Solutions Ltd | Professional & scientific | 2022 |
| Cedar Link Sarl Ltd | Other services | 2020 |
| CEJ Accountants Ltd | Professional & scientific | 2008 |
| Cellnurish Limited | Health & social care | 2025 |
| Celtic Realm Limited | Information & communication | 2026 |
| Celtic Recovery Solutions Ltd | Administrative & support | 2011 |
| Celtic Roots Community Music Academy Limited | Arts & recreation | 2013 |
| CEM Benchmarking UK Limited | Administrative & support | 2011 |
| Censol (I.S.) Ltd. | Construction | 2017 |
| Centaur (S&V) Limited | Real estate | 2011 |
| Central Bark Wirral Ltd | Other services | 2021 |
| Centre Paws Ltd | Other services | 2023 |
| Centric Communications Ltd | Information & communication | 2022 |
| Centurion Personal Training Ltd | Arts & recreation | 2018 |
| Centurion Safety Services Ltd | Construction | 2018 |
| Ceratium Limited | Professional & scientific | 2005 |
| Certainlong Property Management Limited | Households | 1997 |
| Certax Accounting Wirral Limited | Professional & scientific | 2014 |
| Cestrian Glazing & Conservatories (NW) Limited | Construction | 2023 |
| Cestrian Glazing & Conservatories Limited | Construction | 2014 |
| Cetra Holdings Limited | Professional & scientific | 2026 |
| CF OJO Ltd | Health & social care | 2024 |
| CG Engineering Ltd | Professional & scientific | 2022 |
| Cghl Ltd | Financial services | 2024 |
| Cgore Ltd | Wholesale & retail | 2019 |
| CH Aesthetics Ltd | Health & social care | 2023 |
| Chadworth Developments Limited | Construction | 1996 |
| Chain and Sprocket Motorcycles Ltd | Wholesale & retail | 2024 |
| Chainrace Flat Management Limited | Households | 1986 |
| Chajati Limited | Professional & scientific | 2015 |
| Chakrathalwar Ltd | Real estate | 2024 |
| Champion Cladding Limited | Construction | 2026 |
| Champion Developments Wirral Ltd | Construction | 2018 |
| Champion Sparking Plug Company Limited | Water & waste | 1922 |
| Champions Domiciliary Care Ltd | Health & social care | 2019 |
| Champs Cafe Ltd | Hospitality | 2023 |
| Chandott Ltd | Professional & scientific | 2013 |
| Change Beverages Limited | Hospitality | 2012 |
| Change Matters Ltd | Professional & scientific | 2025 |
| Changecomplete Ltd | Information & communication | 2011 |
| Chantrey Developments Limited | Real estate | 2005 |
| Chapel Gardens Management Company Limited | Households | 2005 |
| Chapel House Hoylake Management Company Limited | Real estate | 2023 |
| Chapelgate Services Limited | Construction | 2015 |
| Chapman Rigging Ltd | Construction | 2025 |
| Chaps Cheshire Limited | Other services | 2021 |
| Chapter II NW Limited | Construction | 2020 |
| Charge Ahead Ltd | Construction | 2022 |
| Charge US Ltd | Wholesale & retail | 2025 |
| Chariot Financial Management Limited | Financial services | 2021 |
| Charles L Warren Limited | Construction | 1939 |