| Chris Buckley Roofing Ltd | Construction | 2024 |
| Chris FRY (CFO Advisory) Limited | Professional & scientific | 2013 |
| Christian Smith Photography Limited | Professional & scientific | 2008 |
| CHRONICALLYILLCREATIONS24 Ltd | Professional & scientific | 2025 |
| Chuck Wagon Ltd | Hospitality | 2022 |
| Church Farm Estate Wirral Limited | Agriculture & fishing | 2005 |
| Church Farm Organics Ltd | Extraterritorial | 2017 |
| City Mini Market Wallasey Limited | Wholesale & retail | 2025 |
| City News & Shop Ltd | Wholesale & retail | 2025 |
| City Rentals Manchester Limited | Real estate | 2022 |
| City Sales Liverpool Ltd | Professional & scientific | 2018 |
| CJ Specialist Contractors Limited | Construction | 2019 |
| Cjcharles Ltd | Construction | 2011 |
| CJG Interim Limited | Real estate | 2012 |
| Cjjs Tanning Ltd | Other services | 2023 |
| Clare Hughes Limited | Health & social care | 2023 |
| Claremount Quality Motors Limited | Wholesale & retail | 2013 |
| Clark Consultancy Ltd | Professional & scientific | 2024 |
| Clayton & Co. Holdings Ltd | Financial services | 2024 |
| Clayton Lettings Limited | Real estate | 2024 |
| Clean Clouds Vape Ltd | Wholesale & retail | 2026 |
| Clear Solutions Training Ltd | Education | 2013 |
| Clearview Decking and Driveways Limited | Construction | 2012 |
| Clever Counting Company Ltd | Education | 2015 |
| Cliffynwa Limited | Construction | 2024 |
| CLK Wholesale Ltd | Wholesale & retail | 2024 |
| Cloud&Co Dance Studio Ltd | Manufacturing | 2025 |
| Clustre Limited | Administrative & support | 2010 |
| CM Property Maintenance Ltd | Construction | 2020 |
| Coached by Charl Ltd | Arts & recreation | 2022 |
| Coco Nails Bar Wallasey Ltd | Other services | 2024 |
| Code Arena Limited | Information & communication | 2024 |
| Coffee in the Park Ltd | Hospitality | 2011 |
| Coffee on the Square Ltd | Hospitality | 2011 |
| Cold Forging Solutions Ltd | Professional & scientific | 2022 |
| Community Soul Wallasey C.I.C. | Hospitality | 2016 |
| Compactor Services (Northern) Limited | Manufacturing | 2010 |
| Compactor Services Limited | Professional & scientific | 2019 |
| Composite Doors (NW) Ltd | Manufacturing | 2022 |
| Condell & Co. Holdings Limited | Extraterritorial | 2026 |
| Connected Community Wellbeing CIC | Education | 2026 |
| Connected Thought Limited | Information & communication | 2008 |
| Connex Utilities Ltd | Construction | 2021 |
| Connie Construction Ltd | Construction | 2026 |
| Content Marketing & Design Limited | Professional & scientific | 2011 |
| Contessa Hotels & Spas Limited | Hospitality | 2011 |
| Contessa Hotels Limited | Extraterritorial | 2008 |
| Contract QS Services Limited | Professional & scientific | 2010 |
| Conwis Developments Limited | Real estate | 2014 |
| Copper Flame Software Ltd | Education | 2016 |
| Core Movement Wellbeing CIC | Other services | 2025 |
| Cornerstone Vocational Training Limited | Education | 2002 |
| Cornovii Investments Limited | Real estate | 2015 |
| Cornwall Camp Ltd | Hospitality | 2024 |
| Course Pilot Ltd | Education | 2019 |
| Cova Clothing Limited | Wholesale & retail | 2026 |
| Coybndt Limited | Mining & quarrying | 2016 |
| CP Health & Safety Limited | Other services | 2023 |
| CPH North West Limited | Construction | 2025 |
| Craico Leisure Ltd | Other services | 2019 |
| Craig Millar Management (Wallasey) Limited | Hospitality | 1983 |
| Craigside Properties Limited | Real estate | 2003 |
| Crashline Limited | Professional & scientific | 1990 |
| CREA8ING Community CIC | Education | 2013 |
| Cristiangreen Ltd | Transport & logistics | 2020 |
| Critical Living Solutions Ltd | Administrative & support | 2021 |
| Crosbie & Scott Building Surveyors Limited | Construction | 2018 |
| Cross Platform TV Limited | Information & communication | 2001 |
| Crowdr Ticketing Solutions Ltd | Information & communication | 2024 |
| Crown 'N Glory (Barber Shop) Limited | Other services | 2003 |
| Crown 'N Glory (Hairpieces) Limited | Other services | 2003 |
| Crown Culture Ltd | Manufacturing | 2025 |
| Crowncroft Limited | Wholesale & retail | 1997 |
| Crowne Spa Limited | Other services | 2011 |
| Crownstepedge Ltd | Wholesale & retail | 2026 |
| Crystal Sound and Light Ltd | Administrative & support | 2014 |
| Crystal Theatre Supplies Limited | Administrative & support | 2025 |
| CS Eco & Utility Services Ltd | Information & communication | 2025 |
| CS Installations (NW) Ltd | Construction | 2023 |
| Csauk Ltd | Administrative & support | 2022 |
| CSG Design & Build Ltd | Construction | 2026 |
| CURRENT2U Ltd | Construction | 2024 |
| Curry Cottage Restaurant Ltd | Hospitality | 2025 |
| Curtain Rails NW Limited | Extraterritorial | 2018 |
| Cusack Rail Ltd | Construction | 2017 |
| Custom Entertainment Ltd | Information & communication | 2024 |
| Custom Signs Direct Ltd | Manufacturing | 2026 |
| Cutting Edge Carpentry and Joinery Ltd | Construction | 2024 |
| CWD Research Consulting Limited | Professional & scientific | 2024 |
| CXC Flooring Ltd | Wholesale & retail | 2026 |
| Cycle-In Logistics Ltd | Manufacturing | 2022 |
| D & E Properties North West Ltd | Real estate | 2025 |
| D & R Services (NW) Limited | Construction | 2009 |
| D C Construction Wirral Limited | Construction | 2021 |
| D Hub 67 C.I.C. | Hospitality | 2022 |
| D K Reef Properties Ltd | Real estate | 2025 |
| D Shaw FIX Electrical Ltd | Construction | 2021 |
| D&D Timber Frame and Joinery Limited | Construction | 2022 |
| D&M Lounge Limited | Other services | 2018 |
| D.R. Electrical Limited | Manufacturing | 1987 |