| Cder Rentals Limited | Real estate | 2025 |
| Ceertee Holdings Limited | Financial services | 2012 |
| Ceremonio Limited | Information & communication | 2026 |
| Ceylon Tech Limited | Information & communication | 2025 |
| Chaba Sports and Thai Massage Ltd | Other services | 2025 |
| Chatterbox Champion CIC | Health & social care | 2023 |
| Cheshire Lift Services Widnes Ltd | Manufacturing | 2012 |
| Chia Bear Natural Treats Limited | Wholesale & retail | 2025 |
| Chill OUT Spa & Beauty Limited | Health & social care | 2007 |
| Chris Coulman Celebrant Ltd | Other services | 2019 |
| Chris Martin Construction Limited | Construction | 2021 |
| Christian & Churchill Properties Ltd | Real estate | 2026 |
| Christopher Mantle and Co Limited | Professional & scientific | 2011 |
| Chriswave Limited | Wholesale & retail | 2025 |
| Chungs Super FRY Ltd | Hospitality | 2013 |
| Churchtown Carpets Ltd | Wholesale & retail | 2018 |
| CI Hub Limited | Information & communication | 2017 |
| Cihn Consultancy Limited | Information & communication | 2016 |
| Cjdn Consultancy Limited | Health & social care | 2022 |
| Cjmarx Design Ltd | Wholesale & retail | 2025 |
| CL Costs Drafting Ltd | Professional & scientific | 2026 |
| Clarson GAS Limited | Construction | 2011 |
| Classic Barber Liverpool Ltd | Other services | 2023 |
| Classic Haircut Prescot Ltd | Other services | 2026 |
| Clean and Cleaner Ltd | Administrative & support | 2025 |
| Cleaners 2U Ltd | Administrative & support | 2025 |
| Click and Deliver NW Limited | Information & communication | 2016 |
| CLL Solutions Ltd | Wholesale & retail | 2013 |
| Cloudside Ltd | Construction | 2016 |
| Cmanw Ltd | Administrative & support | 2022 |
| Cobleys Trading Ltd | Wholesale & retail | 2022 |
| Coco Nails UK Limited | Other services | 2022 |
| Code Chronicles Limited | Extraterritorial | 2019 |
| Coderadgames Ltd | Information & communication | 2024 |
| Cognitive Wave Group Ltd | Financial services | 2026 |
| COL MCK Ltd | Transport & logistics | 2020 |
| Colric Electrical Limited | Construction | 2018 |
| Comas Medical Ltd | Health & social care | 2018 |
| Come Into the Fold Ltd | Information & communication | 2022 |
| Commstruction Consulting Limited | Professional & scientific | 2024 |
| Community Mediation Prescot | Health & social care | 2024 |
| Community Safe (UK) Ltd | Other services | 2013 |
| Complete Cost Management Ltd | Professional & scientific | 2024 |
| Comtreat Limited | Administrative & support | 2000 |
| Conatus Property Ltd | Real estate | 2020 |
| Concluir Ltd | Other services | 2014 |
| Conformance Quality Consultants Ltd | Manufacturing | 2020 |
| Conservatory Roof Solutions Limited | Manufacturing | 2003 |
| Construct & Repair Ltd | Construction | 2018 |
| Contempo Marketing Ltd | Professional & scientific | 2023 |
| Convery Property Services Limited | Households | 2026 |
| Cooked by Fire Ltd | Hospitality | 2023 |
| COR Wellbeing Ltd | Wholesale & retail | 2026 |
| Corline Sliding Systems Ltd | Manufacturing | 2022 |
| Corline-Uk Ltd | Manufacturing | 2022 |
| Cormack Roofing Specialists Ltd | Construction | 2020 |
| Coronation Jewels Limited | Wholesale & retail | 2018 |
| Corvus Legal Support Limited | Administrative & support | 2019 |
| Covent Garden Capital Limited | Real estate | 2019 |
| Crab Street ( ST Helens) Limited | Construction | 2025 |
| Cranbrook Consultants Ltd | Professional & scientific | 2009 |
| Cringles Services Ltd | Information & communication | 2025 |
| Cromar Limited | Real estate | 2007 |
| Crowney Transport Ltd | Transport & logistics | 2023 |
| CSG Management Ltd | Professional & scientific | 2023 |
| CTJ Telecoms Ltd | Construction | 2025 |
| Cybermall Limited | Information & communication | 2006 |
| Cybertill Services Limited | Information & communication | 2006 |
| D J Ackerley Ltd | Transport & logistics | 2013 |
| D&J Solid Transport Ltd | Transport & logistics | 2015 |
| D&M Real Estate Ltd | Real estate | 2024 |
| D&Z Health Limited | Health & social care | 2026 |
| Daco Construction (Norfolk) Ltd | Construction | 2014 |
| Daley's Properties Limited | Real estate | 2019 |
| Dan&Brad Limited | Hospitality | 2025 |
| Daniel’S Retail Solutions Ltd | Wholesale & retail | 2024 |
| Danny's Classic Car Parts Limited | Wholesale & retail | 2025 |
| Darlston Consultancy Limited | Public administration | 1999 |
| Datasol Limited | Information & communication | 2003 |
| David Healey Financial Contracting Limited | Financial services | 2016 |
| David N Brennan Properties Ltd | Real estate | 2026 |
| David Webster & Sons Limited | Construction | 2005 |
| Davies EPC Limited | Professional & scientific | 2015 |
| Davies Estates North West Limited | Real estate | 2020 |
| Dayani Retail Ltd | Wholesale & retail | 2020 |
| DB GAS & OIL Ltd | Mining & quarrying | 2019 |
| DB Research Limited | Professional & scientific | 1996 |
| Ddk's Ltd | Wholesale & retail | 2009 |
| Debate Academy Ltd | Education | 2016 |
| Debbie Bennett Funeral Directors Limited | Other services | 2017 |
| Dedicated Intervention Care Limited | Health & social care | 2023 |
| Dedosa Property and Services Limited | Real estate | 2022 |
| Delph Farm Estates Limited | Agriculture & fishing | 2020 |
| Delph Interiors Limited | Professional & scientific | 2018 |
| Delph Projects Limited | Professional & scientific | 2011 |
| Delphside Limited | Health & social care | 1991 |
| DEN TEC Ltd | Construction | 2025 |
| Derek Long Consultancy Ltd | Professional & scientific | 2014 |
| Derek Rodger Limited | Professional & scientific | 2019 |
| Designed & Built for Living Ltd | Construction | 2020 |