| CCM Enterprise Ltd | Construction | 2025 |
| CDS Haulage Limited | Transport & logistics | 2024 |
| Cenacle House Limited | Wholesale & retail | 2010 |
| Certus Card Group Ltd | Manufacturing | 1979 |
| CFW Healthcare Limited | Wholesale & retail | 2026 |
| Chamarel Export Ltd | Wholesale & retail | 2012 |
| Channel 16 Events Limited | Administrative & support | 2026 |
| Chelsea Lettings & Development Ltd | Extraterritorial | 2024 |
| Chevy Holdings Limited | Real estate | 2025 |
| Chieftain & Stirling Ltd | Administrative & support | 2017 |
| Chloe Faye Properties Ltd | Real estate | 2025 |
| CHM Skelmersdale Ltd | Hospitality | 2020 |
| Choices Supported Living & Care Ltd | Health & social care | 2022 |
| Cimc Universal Tank Technologies (UK) Ltd | Other services | 2020 |
| Cinnamon Court (Upholland) Management Company Limited | Households | 2017 |
| CIS Construction Ltd | Construction | 2011 |
| Clay Brow FC Juniors CIC | Arts & recreation | 2026 |
| CLE Commercial Limited | Administrative & support | 2012 |
| Cleanaura Solutions Limited | Manufacturing | 2025 |
| Cleanup Skem CIC | Administrative & support | 2026 |
| Cleary Homes Limited | Construction | 2018 |
| Clifftar Holdings Limited | Professional & scientific | 2013 |
| Climarite Industrial Refrigeration Ltd | Manufacturing | 2025 |
| Climarite Ltd | Manufacturing | 2015 |
| Climate Friendly Food Community Interest Company | Agriculture & fishing | 2009 |
| CM26 Properties Limited | Financial services | 2026 |
| CMJ Services Ltd | Education | 2025 |
| Coba Energy Ltd | Construction | 2024 |
| Code Diagnostics Limited | Wholesale & retail | 2025 |
| Coffee and Clay Studios Ltd | Hospitality | 2025 |
| Colder Limited | Professional & scientific | 2007 |
| Coleman Solutions Limited | Transport & logistics | 2013 |
| Colin Southern Ltd | Education | 2010 |
| Colosseum Child Care Ltd | Health & social care | 2025 |
| Columbus Fifty One Limited | Financial services | 2017 |
| Commercial Motors (Wales) Limited | Wholesale & retail | 2008 |
| Community Rooms C.I.C. | Education | 2016 |
| Competent in Construction Limited | Education | 2021 |
| Complete 3D Prints Ltd | Manufacturing | 2026 |
| Complete Valeting Limited | Wholesale & retail | 2021 |
| Conan Roofing Ltd | Construction | 2025 |
| Concourse Factory Blinds Limited | Wholesale & retail | 2016 |
| Conexus Medstaff Holding Company Limited | Professional & scientific | 2021 |
| Conexus Medstaff Limited | Administrative & support | 2011 |
| Conformance Training Speleoadventure LP | | 2022 |
| Connolly Electrical Contractors Limited | Construction | 2012 |
| Consensus Mediation Limited | Professional & scientific | 2000 |
| Construct Property Group Ltd | Real estate | 2026 |
| Consummate Investments Limited | Administrative & support | 2011 |
| Conwy Dental Limited | Health & social care | 2026 |
| Cordstrap Limited | Wholesale & retail | 1988 |
| Cornerstone Property Investors Ltd | Real estate | 2019 |
| Cornerstone Vintage Ltd | Wholesale & retail | 2026 |
| Council for Voluntary Service West Lancashire | Health & social care | 1994 |
| Counselling West Lancs CIC | Education | 2020 |
| Courier World Ltd | Transport & logistics | 2026 |
| Couture Clothing Company Limited | Wholesale & retail | 2025 |
| Cozzy Cart Shop Ltd | Wholesale & retail | 2025 |
| Crane Hire Expert Ltd | Transport & logistics | 2025 |
| Creative Impressions Limited | Wholesale & retail | 1990 |
| Crescent Multitrade Limited | Construction | 2022 |
| Crin Trans Ltd | Other services | 2017 |
| Cris PC Express Ltd | Transport & logistics | 2024 |
| Crispy Fridays Ltd | Hospitality | 2026 |
| Croftgb Ltd | Construction | 2014 |
| CSJ Fabrications Ltd | Manufacturing | 2008 |
| Cullen Wealth Management Limited | Financial services | 2013 |
| Cunard White Star Line Ltd | Transport & logistics | 2024 |
| Curantis Accommodation Limited | Real estate | 2025 |
| Curantis Housing CIC | Real estate | 2021 |
| Cure NW Ltd | Construction | 2022 |
| Curtis Smith & Associates Limited | Real estate | 2008 |
| D & L Taping & Jointing Ltd | Construction | 2015 |
| D B Netdeck Ltd | Construction | 2013 |
| D Mcdivitt and Company Limited | Construction | 2006 |
| D&Blettings Ltd | Real estate | 2025 |
| D&T Transport Ltd | Transport & logistics | 2024 |
| D.R.Byrne Heating & Plumbing Ltd | Construction | 2016 |
| DA Celebrations Ltd | Manufacturing | 2023 |
| Daisy Radiant Living Limited | Health & social care | 2024 |
| Dalt Services Limited | Transport & logistics | 2025 |
| Dalton NW Limited | Water & waste | 2022 |
| Daniel Bojin Trans Ltd | Transport & logistics | 2018 |
| Daniel Express Limited | Transport & logistics | 2014 |
| Daniels Lane Engineering Services Ltd | Professional & scientific | 2022 |
| Dannex Engineering Ltd | Manufacturing | 2018 |
| Darwin Technology International Limited | Professional & scientific | 1997 |
| Dave Bolton Transport Limited | Transport & logistics | 2005 |
| David Andersen Limited | Administrative & support | 2019 |
| Davlyn Dales Limited | Real estate | 2013 |
| Davtech Handling Ltd | Manufacturing | 2020 |
| DC Valets Ltd | Wholesale & retail | 2021 |
| DC/79 Band Ltd | Arts & recreation | 2019 |
| DDJ Ltd | Real estate | 2024 |
| DDT Solutions Ltd | Information & communication | 2025 |
| Dean Holiday Homes Limited | Real estate | 2019 |
| Dean Wood Close Management Company Limited | Households | 2014 |
| Dean Wood Golf Club Limited | Arts & recreation | 2019 |
| Debbie&Co Ltd | Health & social care | 2024 |
| Decordean Ltd | Wholesale & retail | 2026 |