| Clare Ltd | Construction | 2023 |
| Clark & Co Property Ltd | Real estate | 2025 |
| Clean and Green Services (NW) Ltd | Real estate | 2021 |
| Cleaner Way Ltd | Administrative & support | 2017 |
| Clearright Services Ltd | Information & communication | 2026 |
| Clifford Motors Ltd | Wholesale & retail | 2017 |
| Clifton Bay Holdings Ltd | Real estate | 2024 |
| Clocktower Apartments Ltd | Hospitality | 2019 |
| Cloudline App UK Limited | Information & communication | 2017 |
| Clubfit Golf Ltd | Arts & recreation | 2014 |
| CM Ellis Holdings Limited | Financial services | 2025 |
| CM Quality Consulting Limited | Professional & scientific | 2023 |
| CMG Lancaster Limited | Wholesale & retail | 2015 |
| CMP Networking Limited | Information & communication | 2023 |
| Coach House Building Limited | Other services | 2004 |
| Coast to Coast Equine Transport Ltd | Transport & logistics | 2026 |
| Coastal Building Services Ltd | Construction | 2016 |
| Coastal Electrical Services Limited | Construction | 2006 |
| Coastal Lettings Property Maintenance Ltd | Real estate | 2025 |
| Coastal Plumbing and Heating (Fylde) Ltd | Construction | 2022 |
| Coastal Taxis Limited | Transport & logistics | 1998 |
| COFFEYS145 Ltd | Hospitality | 2022 |
| Coherent Software Ltd. | Information & communication | 2013 |
| Cole Investment Holdings Limited | Real estate | 2024 |
| Cole Property Investments Limited | Real estate | 2024 |
| Colin Brown Gents Hairdressers Limited | Other services | 2005 |
| Colin Knowles Decorating Services Limited | Construction | 2016 |
| Collieflowers Holdings Limited | Financial services | 2025 |
| Collingwood Taxis Limited | Transport & logistics | 2005 |
| Communication North West Ltd | Public administration | 2022 |
| Compare CBD Ltd | Other services | 2018 |
| Complete Heating and Cooling Ltd | Construction | 2025 |
| Computer Exchange NW Ltd | Other services | 2022 |
| Coniston House Group Ltd | Households | 2021 |
| Connect Electrical NW Ltd | Construction | 2022 |
| Connect Play Learn C.I.C. | Health & social care | 2023 |
| Connorsali Limited | Professional & scientific | 2023 |
| Constant Trade Ltd | Wholesale & retail | 2018 |
| Contact One Group Limited | Financial services | 2019 |
| Contact One Limited | Construction | 1998 |
| COO Investments Ltd | Real estate | 2024 |
| Cool Wave Solutions Ltd | Energy | 2011 |
| Coolwave Holdings Ltd | Financial services | 2019 |
| Corkel Holdings Limited | Professional & scientific | 2016 |
| Corkel Limited | Professional & scientific | 2004 |
| Cornerstone-Bay-Properties Limited | Construction | 2026 |
| Corngold Limited | Professional & scientific | 2019 |
| Counterflow Film Limited | Information & communication | 2025 |
| Covered Safety Ltd | Information & communication | 2026 |
| COX Motor Group Limited | Wholesale & retail | 2015 |
| Crafted Landscapes Ltd | Administrative & support | 2020 |
| Crag View Properties Ltd | Real estate | 2023 |
| Craigwell Hotel Limited | Hospitality | 2022 |
| Cranfield Investments Limited | Real estate | 2025 |
| Creagle Limited | Hospitality | 2019 |
| Creative EWE Ltd | Arts & recreation | 2025 |
| CRG Transport Ltd | Transport & logistics | 2015 |
| Cross Apiary Ltd | Wholesale & retail | 2023 |
| Cross Bay Brewery Limited | Manufacturing | 2024 |
| CTP Services Limited | Administrative & support | 2017 |
| Cunningham Builders (Morecambe) Ltd | Construction | 2019 |
| Cybec Consulting Limited | Information & communication | 2025 |
| D & AM Dixon Investments Ltd | Real estate | 2025 |
| D & S Edwards Limited | Financial services | 2017 |
| D Barry Solutions Ltd | Professional & scientific | 2017 |
| D C Autos (Morecambe) Limited | Wholesale & retail | 2016 |
| D Flynn & Sons Limited | Hospitality | 2025 |
| D Hodges Plumbing & Heating Ltd | Construction | 2017 |
| D J COX Limited | Wholesale & retail | 2000 |
| D Lumb Plumbing & Heating Ltd | Construction | 2022 |
| D&Am Dixon Ltd | Real estate | 2018 |
| D&H Financial Services Ltd | Financial services | 2021 |
| D&R Taverns Limited | Hospitality | 2015 |
| D.A. Mcullogh Ltd | Construction | 2025 |
| D.D. Systems Limited | Manufacturing | 2004 |
| D.E.M.C.O Asbestos Removal and Demolition Limited | Water & waste | 2024 |
| D.R Wilson Plumbing and Heating Solutions Ltd | Construction | 2021 |
| DA Computer Services Limited | Information & communication | 1998 |
| Daka Plus Limited | Health & social care | 2025 |
| Dale and Sons Couriers Limited | Transport & logistics | 2019 |
| Dale Logistics Limited | Transport & logistics | 2019 |
| Dalton IF Healthcare Limited | Wholesale & retail | 2026 |
| Damc Properties & Lettings Ltd | Construction | 2026 |
| Damgoodproperties Limited | Households | 2019 |
| Damp Resolutions Limited | Construction | 2015 |
| Dance and Leisurewear Limited | Wholesale & retail | 2018 |
| Danielle Hayes- Studio 25 Ltd | Other services | 2026 |
| Dany Barber 1 Ltd | Other services | 2025 |
| Darell Investments Limited | Real estate | 2025 |
| Daryl Camm Limited | Construction | 2023 |
| Dave Allen Joinery and Building Ltd | Construction | 2014 |
| Dave Higham Limited | Wholesale & retail | 2021 |
| Dave Johnson Driver Training Ltd | Professional & scientific | 2010 |
| David Dale Accident Repair Specialist Limited | Wholesale & retail | 2006 |
| Davin Creative Ltd | Manufacturing | 2025 |
| Davoro Developments Limited | Construction | 2025 |
| Davy Jones Locker Limited | Hospitality | 2020 |
| Davy Jones Ltd | Hospitality | 2021 |
| DB & VB Holdings Limited | Hospitality | 2024 |
| Ddcg Ltd | Hospitality | 2025 |