| CJ Builders (NW) Ltd | Construction | 2026 |
| CJF Developments UK Limited | Financial services | 2019 |
| CJL Commercial Ltd | Real estate | 2017 |
| CJN Housing Limited | Administrative & support | 2021 |
| CJW Contracting Ltd | Professional & scientific | 2020 |
| CJW Joinery Contractors Limited | Construction | 2016 |
| Cladtech Installations Limited | Construction | 2007 |
| Claims Management Fees Recovery Limited | Administrative & support | 2017 |
| Claren Design Limited | Professional & scientific | 2017 |
| Clarke and Pulman (Burscough) Limited | Extraterritorial | 2017 |
| Clarke and Pulman Holdings Group Limited | Financial services | 2020 |
| Clarke and Pulman Holdings Limited | Financial services | 2017 |
| Clarke JCB Limited | Extraterritorial | 2022 |
| Claxton Sports Academy Ltd | Arts & recreation | 2025 |
| Clear Fulfilment Ltd | Administrative & support | 2026 |
| Clearglow Media Ltd | Wholesale & retail | 2022 |
| Clearscale Marketing Limited | Professional & scientific | 2024 |
| Clearstream Management Ltd | Professional & scientific | 2026 |
| Clearview (NW) Limited | Administrative & support | 2013 |
| Clearwater Corp Limited | Other services | 2019 |
| Clever Monkey Woodworks Ltd | Manufacturing | 2020 |
| Cliff Randall & SON Limited | Manufacturing | 1999 |
| Clifton Walk Gifts Ltd | Wholesale & retail | 2019 |
| Clinic LZB Limited | Other services | 2026 |
| Cloverleaf Engineering Consultancy Limited | Professional & scientific | 2014 |
| CM2 Creative Limited | Professional & scientific | 2003 |
| CMJ Exclusive Travel Limited | Transport & logistics | 2019 |
| CMS Uplifters Ltd | Other services | 2004 |
| CN Retail Limited | Professional & scientific | 2015 |
| CNX Energy Ltd | Construction | 2025 |
| Cobalt Group Limited | Professional & scientific | 2009 |
| Cobble Coffee Limited | Hospitality | 2016 |
| Coconut Lounge Ltd | Other services | 2021 |
| Collins, Stratford & Co Ltd | Professional & scientific | 2026 |
| Comelit Group UK Limited | Manufacturing | 2021 |
| Comelit-Gdxpac Limited | Manufacturing | 2021 |
| Comelit-Pacgdx Limited | Manufacturing | 2021 |
| Commercial Vehicle Media & Publishing Ltd | Information & communication | 2010 |
| Community Links Enterprises Ltd | Education | 2024 |
| Community Links Training & Enterprise Ltd | Administrative & support | 2016 |
| Compass North West Limited | Extraterritorial | 2025 |
| Complete Design & Build Limited | Administrative & support | 1994 |
| Complete Fitness Ltd | Arts & recreation | 2025 |
| Complete Home Security Ltd | Administrative & support | 2020 |
| Complete Trading NW Limited | Wholesale & retail | 2026 |
| Complete-Property-Solution-Uk- Ltd | Construction | 2019 |
| Compute Unit Limited | Information & communication | 2017 |
| Condor Carriers Limited | Transport & logistics | 2020 |
| Connolly Food Group Limited | Wholesale & retail | 2018 |
| Connor Finance Corporation Limited | Administrative & support | 1972 |
| Conquer Fitness Ormskirk Ltd | Arts & recreation | 2024 |
| Conscious Mothers Community CIC | Health & social care | 2024 |
| Contemporary Edge Limited | Administrative & support | 2016 |
| Contrino Consulting Limited | Administrative & support | 2023 |
| Control Technology Systems Limited | Information & communication | 1995 |
| CONVIRT3D Ltd | Information & communication | 2021 |
| Cookstar Medical Ltd | Real estate | 2020 |
| Cooper Developments NW Ltd | Construction | 2026 |
| Coops Cottage Ltd | Real estate | 2021 |
| Core Construction (North West) Limited | Construction | 2001 |
| Core Group Electrical Ltd | Construction | 2025 |
| Core Group Infrastructure Limited | Information & communication | 2016 |
| Core Group Investments Ltd | Real estate | 2021 |
| Cork Events Ltd | Hospitality | 2023 |
| Cornerstone Financial Planning Ltd | Administrative & support | 2005 |
| Cornthwaite Agricultural Limited | Wholesale & retail | 2007 |
| Cornthwaite Holdings Limited | Professional & scientific | 2007 |
| Cornthwaite Investments (AG) Limited | Professional & scientific | 2008 |
| Cornthwaite Properties Limited | Real estate | 2011 |
| Cottage Dental Ormskirk LLP | | 2016 |
| Countrylife Boutique Limited | Extraterritorial | 2014 |
| Countrywide Upvc (North West) Limited | Construction | 2008 |
| County Fish Bar Limited | Hospitality | 2025 |
| Courtfall Limited | Real estate | 2001 |
| Covershield Limited | Manufacturing | 2010 |
| Cpdw Consulting Limited | Administrative & support | 2013 |
| CPJ Communications Ltd | Information & communication | 2019 |
| CPM Plant NW Limited | Administrative & support | 2021 |
| CPS Recovery Limited | Administrative & support | 2019 |
| Cpsl Renewable Energy Ltd | Wholesale & retail | 2023 |
| CPW Electrical Ltd | Construction | 2021 |
| Crackerjackpa Ltd | Administrative & support | 2014 |
| Craig Ingham Ltd | Transport & logistics | 2026 |
| Craig Psychologies Ltd | Health & social care | 2020 |
| Craven Dolan Limited | Real estate | 2023 |
| Cream T Custom Shop Ltd | Manufacturing | 2022 |
| Creative Restaurants Ltd | Hospitality | 2023 |
| Credit Investments Limited | Other services | 2018 |
| Crestwood Management Limited | Real estate | 2008 |
| Crili Limited | Wholesale & retail | 2025 |
| Crime Insights Limited | Public administration | 2016 |
| Crisis Prepared Limited | Administrative & support | 2013 |
| Crisp Systems Ltd | Information & communication | 2026 |
| Cristianos Laser Clinic Limited | Health & social care | 2001 |
| Crompton Properties Limited | Extraterritorial | 2011 |
| Crompton Property Developments Limited | Construction | 2002 |
| Crompton Truck & Plant Limited | Wholesale & retail | 2021 |
| Crystal Blinds (UK) Limited | Manufacturing | 2002 |
| Crystal Clear Opticians Limited | Health & social care | 2020 |
| CS Digital (NW) Limited | Information & communication | 2025 |