| Buybeedles Ltd | Wholesale & retail | 2024 |
| BX3 Projects Limited | Real estate | 2026 |
| C & J Dispense Services Limited | Hospitality | 2005 |
| C & L Events Ltd | Administrative & support | 2014 |
| C & L Plumbing and Heating Ltd | Construction | 2019 |
| C Cook Couriers Limited | Transport & logistics | 2017 |
| C J Mckeegan Limited | Administrative & support | 2016 |
| C M Advanced Medical Aesthetics Limited | Health & social care | 2023 |
| C Meadows Ltd | Administrative & support | 2020 |
| C Mugs Ltd | Health & social care | 2018 |
| C Odea Property Services Ltd | Real estate | 2016 |
| C&C Transport 007 Limited | Transport & logistics | 2018 |
| C&L Property Rentals Ltd | Real estate | 2025 |
| C-Probe (North America) Limited | Construction | 2018 |
| C-Probe Global Assets Limited | Administrative & support | 2018 |
| C-Probe Structures Limited | Manufacturing | 2018 |
| C. a. Hunter Limited | Professional & scientific | 2008 |
| C. E. Bettridge & SON Limited | Construction | 2014 |
| C.D.P. (ST Helens) Ltd | Health & social care | 2012 |
| C.D.S Decoratorsnw Ltd | Construction | 2023 |
| C.R. Fishwick & Co (ST Helens) Limited | Construction | 1986 |
| C.T. Cladding Ltd | Construction | 2020 |
| C2-CREATIVE Community Interest Company | Information & communication | 2023 |
| Cabbage Hall CIC | Other services | 2020 |
| Cabe Smith Ltd | Transport & logistics | 2015 |
| Cabinkraft Ltd | Wholesale & retail | 2020 |
| Cable and Jointing Services Limited | Construction | 2017 |
| CAE Adda Camping Ltd | Hospitality | 2016 |
| Caesars Grill Ltd | Hospitality | 2024 |
| Caesars Treats Ltd | Hospitality | 2024 |
| Cafe Express (Sutton) Ltd | Hospitality | 2020 |
| Cafe Express Cosy Corner Ltd | Hospitality | 2025 |
| Cafe Express Deli Ltd | Hospitality | 2020 |
| Caldway Construction Ltd | Construction | 2007 |
| Caldway Holdings Ltd | Construction | 2012 |
| Caliber Supplies Ltd | Wholesale & retail | 2021 |
| Callaghan Fencing & Landscapes Ltd | Administrative & support | 2024 |
| Callel Ltd | Wholesale & retail | 2020 |
| Cally Direct Ltd | Arts & recreation | 2022 |
| Calm Electrical Services Limited | Construction | 2017 |
| Calm Property Rentals Limited | Real estate | 2024 |
| Calm Property Solutions Limited | Construction | 2024 |
| Calmed Springs Limited | Other services | 2024 |
| Calser Ltd | Transport & logistics | 2020 |
| Cambridge Road Carpets and Flooring Ltd | Wholesale & retail | 2023 |
| Cambridge Road Kurdish Barber Ltd | Other services | 2026 |
| Cameron Willcox Ltd | Manufacturing | 2015 |
| Camo Dare Ltd | Real estate | 2023 |
| Campbell Medical Services Limited | Health & social care | 2013 |
| Canadian Smash House Limited | Hospitality | 2026 |
| Canine Assist Limited | Other services | 2012 |
| Canna Coffee Ltd | Wholesale & retail | 2018 |
| Cannington Shaw Preservation Trust CIC | Education | 2018 |
| Cannon Distribution Services Ltd | Transport & logistics | 2020 |
| Canny FOX Consultancy Ltd | Professional & scientific | 2013 |
| Canopies & Shelters Ltd | Manufacturing | 2023 |
| Cantilever Property Ltd | Real estate | 2017 |
| Capitol Fitness Limited | Arts & recreation | 2021 |
| Capper-Neill General Fabrications Limited | Manufacturing | 2022 |
| Captain Cook (Helens) Limited | Hospitality | 2025 |
| Captain Manos Ltd | Hospitality | 2017 |
| Car Parts (GB) Ltd | Administrative & support | 2008 |
| Cardall C Limited | Wholesale & retail | 2014 |
| Cardea Kitchens Limited | Wholesale & retail | 2021 |
| Care Matters Ltd | Health & social care | 2018 |
| Care Solutions (ST Helens) Ltd | Health & social care | 2012 |
| Care to Learn UK Ltd | Education | 2025 |
| Carl Roberts Transport Ltd | Transport & logistics | 2018 |
| Caro Transport Ltd. | Transport & logistics | 2013 |
| Carpe Design Manufacture Limited | Manufacturing | 2021 |
| Carten Transportation Services Limited | Transport & logistics | 2026 |
| Carves-Uk CIC | Information & communication | 2025 |
| Casarima Limited | Hospitality | 2024 |
| Cash Company Group Limited | Wholesale & retail | 2024 |
| Cassa Cammack Ltd | Real estate | 2025 |
| Castle Hill Kids Club Hindley Ltd | Health & social care | 2022 |
| Catalin Premium Rendering Ltd | Construction | 2025 |
| Catch Transport Limited | Transport & logistics | 2019 |
| Catchdale Limited | Real estate | 2003 |
| Caton Quantity Surveying Ltd | Professional & scientific | 2021 |
| CB Allied Services Ltd | Health & social care | 2022 |
| CB Courier Services Limited | Transport & logistics | 2025 |
| CB Sports Medicine Limited | Health & social care | 2011 |
| CBL GAS Maintenance Limited | Construction | 2022 |
| CBS Fabrication Limited | Manufacturing | 2021 |
| CC Groundworks & Construction Ltd | Construction | 2022 |
| CDH Homes Limited | Real estate | 2026 |
| CDS Design Services Limited | Professional & scientific | 2018 |
| Cedar View Ltd | Real estate | 2016 |
| Cedeva Ltd | Real estate | 2021 |
| Ceejay Construction 82 Ltd | Construction | 2024 |
| Celltech Battery Holdings Limited | Financial services | 2019 |
| Celltech Battery Sales & Service Limited | Wholesale & retail | 1998 |
| Central Asset Holding Limited | Financial services | 2018 |
| Cerebrum 8 CIC | Health & social care | 2026 |
| Cerrus Ltd | Professional & scientific | 2025 |
| Cervello Counselling Ltd | Health & social care | 2024 |
| Cewb Ltd | Education | 2022 |
| CF Security Systems Limited | Administrative & support | 2011 |
| CFA Fitch Limited | Construction | 2020 |