| Canet Properties Ltd | Real estate | 2017 |
| Canine Companions (Wigan) Ltd | Other services | 2024 |
| Canis & Co. Ltd | Wholesale & retail | 2017 |
| Canstero | Professional & scientific | 2025 |
| Cantuart | Professional & scientific | 2025 |
| Canyon Electrical Ltd | Construction | 2023 |
| Capdeux Ltd | Professional & scientific | 2024 |
| Capricorn Landscapes NW Ltd | Administrative & support | 2025 |
| Captain Developments Limited | Real estate | 2020 |
| Captain's Lane Community Centre C.I.C. | Arts & recreation | 2024 |
| Capture 21 Limited | Professional & scientific | 2006 |
| Capworth Limited | Professional & scientific | 2015 |
| Car 4 YOU Wigan Ltd | Wholesale & retail | 2024 |
| Car DOC Automech Ltd | Wholesale & retail | 2023 |
| Car Spares Hindley Ltd | Wholesale & retail | 2017 |
| Carberry Scaffolding Ltd | Construction | 2010 |
| Carbon Equipment Limited | Manufacturing | 2014 |
| Carbon Theatre and Cultural Projects Ltd. | Arts & recreation | 2018 |
| Cardean Ltd | Administrative & support | 2025 |
| Cardimar Life Sciences BD Consultancy Ltd | Professional & scientific | 2018 |
| Cardium Ltd | Professional & scientific | 2010 |
| Cards and Tags UK Ltd | Wholesale & retail | 2022 |
| Cards for ALL Occasions Limited | Wholesale & retail | 2026 |
| Care Awareness Limited | Health & social care | 2019 |
| Care Break Limited | Administrative & support | 2016 |
| Care Choice North West Limited | Health & social care | 2013 |
| Care Choice Training Academy Limited | Education | 2021 |
| CARE4US Homecare Services Ltd | Health & social care | 2014 |
| Career Climbers UK Limited | Wholesale & retail | 2022 |
| Caretegrity Ltd | Professional & scientific | 2026 |
| Carey Computer Services Ltd | Manufacturing | 2025 |
| Caribou Enterprises Ltd | Professional & scientific | 2018 |
| Carinthian Enterprises Ltd | Professional & scientific | 2019 |
| Carl-Ode Construction Ltd | Construction | 2025 |
| Carlton Gate Limited | Construction | 2014 |
| Carmex Garage Services Limited | Wholesale & retail | 2007 |
| Carodega | Professional & scientific | 2023 |
| Carol Ogden Travel Limited | Extraterritorial | 2009 |
| Carpets at Home North West Ltd | Construction | 2016 |
| Carr Manor Nursery (Walton-Le-Dale) Limited | Education | 2008 |
| Carter Brothers Holdings Ltd | Financial services | 2021 |
| Carter Inspection Services Limited | Administrative & support | 2014 |
| Cartmel Productions Limited | Other services | 2017 |
| Casa Lettings Limited | Real estate | 2012 |
| Casana Limited | Construction | 2024 |
| Casapu Estates Limited | Real estate | 2019 |
| Casey's Candy Ltd | Hospitality | 2021 |
| Cash IT in Goole Ltd | Wholesale & retail | 2023 |
| Cashmore Accountancy Services Limited | Professional & scientific | 2013 |
| Casimirion Ltd | Professional & scientific | 2026 |
| Casira Technology Limited | Information & communication | 2026 |
| Casiversum Ltd | Professional & scientific | 2025 |
| Castellini Limited | Administrative & support | 2004 |
| Castle Construction & Development Limited | Construction | 1998 |
| Castle Electrical (North) Limited | Construction | 2015 |
| Castle on T'Hill Limited | Hospitality | 2026 |
| Castlecourt Construction Limited | Construction | 2019 |
| Castlecourt Group Ltd | Financial services | 2025 |
| CASTLEHILLTYRES85 Limited | Wholesale & retail | 2025 |
| Castra Ltd | Administrative & support | 2012 |
| Cat Business Services Limited | Professional & scientific | 2017 |
| Cater Revival Holdings Limited | Wholesale & retail | 2026 |
| Cater Revival Limited | Wholesale & retail | 2026 |
| Cater Spare Centre Ltd | Wholesale & retail | 2025 |
| Cater Walsh Reporting Limited | Information & communication | 2005 |
| Catercare North West Limited | Professional & scientific | 2017 |
| Catering for Communities Limited | Hospitality | 2024 |
| Caterpillars EAT Leaves Limited | Administrative & support | 2023 |
| Cathco Developments (Farnworth) Limited | Professional & scientific | 2006 |
| Catherine Temple Spa Limited | Other services | 2020 |
| Catherine Walsh Limited | Health & social care | 2018 |
| Catiku Ltd | Professional & scientific | 2024 |
| Catolas | Professional & scientific | 2025 |
| Catonos | Professional & scientific | 2025 |
| Catonso | Professional & scientific | 2025 |
| CB Electrical Solutions Ltd | Construction | 2024 |
| CB Joinery Ltd | Construction | 2019 |
| CB Tile Agency Limited | Administrative & support | 2011 |
| Cbdb Limited | Construction | 2017 |
| Cbdproperties Ltd | Real estate | 2025 |
| Cbdsportcom Limited | Wholesale & retail | 2020 |
| Cbrown Estates Ltd | Real estate | 2025 |
| CBS Interior Workspace Limited | Construction | 2020 |
| CBS Interiors Ltd | Construction | 2017 |
| Cbsi Wadsworth Limited | Wholesale & retail | 2009 |
| CBT Manchester Limited | Administrative & support | 2014 |
| CC Industrial Limited | Construction | 2014 |
| CC Linkys Gifts Ltd | Wholesale & retail | 2026 |
| CC Logistics Limited | Transport & logistics | 2019 |
| CC Plastering Ltd | Construction | 2022 |
| CCA Property Solutions Ltd | Construction | 2017 |
| Ccbp Property Investments Ltd | Real estate | 2024 |
| Cckb Limited | Other services | 2008 |
| Ccpsolutions Ltd | Construction | 2026 |
| CCS Accountancy Ltd | Professional & scientific | 2022 |
| CCS Accountancy Services Ltd | Professional & scientific | 2013 |
| Cctv Pro Secure Ltd | Administrative & support | 2021 |
| CD Cosmetics Training Academy Ltd | Other services | 2024 |
| CDA Properties (North West) Limited | Real estate | 2021 |
| CDC Business Solutions Ltd | Information & communication | 2025 |