| BSR Powder Coating Ltd | Construction | 2020 |
| BTG Access Rigging Ltd | Arts & recreation | 2025 |
| Buddy AID Ltd | Other services | 2018 |
| Burrows Financial Services Limited | Financial services | 2022 |
| Business & Community Services Limited | Professional & scientific | 1991 |
| Busy BOZ Limited | Administrative & support | 2026 |
| C Dillon UK Limited | Financial services | 2015 |
| C Mills Services Ltd | Real estate | 2012 |
| Cains Property Investments Ltd | Real estate | 2024 |
| Calana Ltd | Real estate | 2018 |
| Calme CIC | Hospitality | 2021 |
| Cander Consulting Limited | Professional & scientific | 2006 |
| Caravan Repairs Services Ltd | Wholesale & retail | 2002 |
| Carl B Ltd | Transport & logistics | 2024 |
| Carmody Consulting Services Ltd | Information & communication | 2023 |
| Carradale Marine Services Limited | Agriculture & fishing | 2019 |
| Carrie Moores Productions Ltd | Information & communication | 2012 |
| Carter & Corson Partnership Limited | Professional & scientific | 1999 |
| Castle Contractors Limited | Construction | 2005 |
| Castlegate Properties Ltd | Real estate | 2020 |
| Catalyst Property Limited | Real estate | 2016 |
| CDG Property Investments Limited | Real estate | 2015 |
| CDJ Property Ltd | Real estate | 2020 |
| CDM Education Ltd | Education | 2026 |
| Cedar Black Properties Ltd | Real estate | 2024 |
| Cega Property Limited | Real estate | 2024 |
| Celebi Electrical Services Ltd | Construction | 2020 |
| Cendant Limited | Real estate | 2016 |
| Central Treat Ltd | Hospitality | 2023 |
| Centum Music Group Limited | Information & communication | 2023 |
| Cercis 888 Limited | Hospitality | 2025 |
| Chameleon Financial Planning Limited | Financial services | 2017 |
| Charlie Brougham Limited | Professional & scientific | 2013 |
| Charlotte Dugdale Yoga Ltd | Health & social care | 2025 |
| Charming Homes Limited | Real estate | 2012 |
| Chello Properties Ltd | Real estate | 2012 |
| Chianteeth Ltd | Health & social care | 2022 |
| Chicken Special Ltd | Wholesale & retail | 2026 |
| China House Takeaway Ltd | Hospitality | 2023 |
| Chocca Late Ltd | Wholesale & retail | 2019 |
| Chris Standeven Ltd. | Construction | 2001 |
| Chris Turnham Joiners & Builders Limited | Manufacturing | 2005 |
| CI Parkins Consultancy Ltd | Other services | 2020 |
| Cindy's Little Kingdom Limited | Wholesale & retail | 2013 |
| CIP Automotive Limited | Wholesale & retail | 2021 |
| CKD Electrical Services Limited | Construction | 2025 |
| Clean Haven Cleaning Services Ltd | Administrative & support | 2025 |
| Clean Tides Ltd | Administrative & support | 2026 |
| Cleveleys Airport Services Limited | Transport & logistics | 2012 |
| Cleveleys Convenience Store Ltd | Wholesale & retail | 2019 |
| Cleveleys Holiday Apartments Limited | Hospitality | 2014 |
| Cleveleys Home Essentials Ltd | Wholesale & retail | 2025 |
| Cleveleys Landscapes Ltd | Administrative & support | 2025 |
| Cleveleys Pound Plus Limited | Wholesale & retail | 2025 |
| Cleveleys Properties Limited | Real estate | 2002 |
| Cleveleys Spice Limited | Hospitality | 2023 |
| Climateshield Roofing Limited | Construction | 2019 |
| Clinical Support Services Limited | Health & social care | 2016 |
| Cloud 9 Training Academy Ltd | Other services | 2024 |
| CMG Property Management Ltd | Real estate | 2014 |
| Coach and Shine Community Interest Company | Health & social care | 2024 |
| COE Quantity Surveying Limited | Professional & scientific | 2020 |
| Coeus.Ai Ltd | Information & communication | 2023 |
| Cole Estates (Property Services) Ltd | Real estate | 2015 |
| Colhoon Limited | Professional & scientific | 2010 |
| Coltar Consultancy Limited | Professional & scientific | 2021 |
| Coltar Property Limited | Real estate | 2021 |
| Commercial Power Limited | Administrative & support | 2004 |
| Community Roots and Growth CIC | Administrative & support | 2026 |
| Concrete Guard Limited | Professional & scientific | 2025 |
| Concrete Made Easy Limited | Manufacturing | 2020 |
| Conex European Ltd | Transport & logistics | 2022 |
| Confidential Investigations UK Ltd | Administrative & support | 2026 |
| Connect Power Limited | Other services | 2016 |
| Connecting Hands Counselling Ltd | Other services | 2024 |
| Connectiverse CIC | Education | 2025 |
| Context Property Limited | Real estate | 2017 |
| Continuous Ltd | Information & communication | 2021 |
| Contrarian Property Ltd | Real estate | 2025 |
| Copeland and Bonham Ltd | Real estate | 2012 |
| Coquette Holdings Limited | Financial services | 2023 |
| Coquette Limited | Wholesale & retail | 2021 |
| Corcroft Limited | Professional & scientific | 2016 |
| Corecurrent Electric Limited | Construction | 2026 |
| Cosaccharide Limited | Wholesale & retail | 2025 |
| Coulon & Coulon Limited | Arts & recreation | 2017 |
| Cowsill Ltd | Construction | 2025 |
| Cranbury Court Company Limited | Professional & scientific | 1990 |
| Crane Strategy and Transformation Ltd | Professional & scientific | 2026 |
| Creating With Communities CIC | Education | 2026 |
| Creative-Ed UK CIC | Administrative & support | 2017 |
| Crescive Investments Limited | Real estate | 2021 |
| Cross Egan Developments Ltd | Real estate | 2025 |
| Cross Holdings M Limited | Real estate | 2017 |
| Cross Homes Ltd | Real estate | 2016 |
| Crossan Elite Limited | Wholesale & retail | 2025 |
| Crossland Builders Limited | Administrative & support | 2025 |
| Cruising Belle Limited | Real estate | 2020 |
| Ctaesthetics Ltd | Other services | 2020 |
| CTO Support Ltd | Professional & scientific | 2019 |