| Central Garage Doors Holding Ltd | Manufacturing | 2023 |
| Central Garage Doors Ltd | Manufacturing | 2025 |
| Central Investments Limited | Financial services | 2024 |
| Central RT Racing Limited | Wholesale & retail | 2019 |
| Central Sports Cars Limited | Wholesale & retail | 2003 |
| Central Trimming and Restoration Limited | Wholesale & retail | 2021 |
| Central TVR Parts Limited | Wholesale & retail | 2021 |
| Centurion Enterprises Limited | Administrative & support | 2013 |
| Cephamart Ltd | Wholesale & retail | 2025 |
| Cerulean Property Management Limited | Real estate | 2024 |
| CFR Morais Limited | Real estate | 2021 |
| CGE Services Ltd | Construction | 2020 |
| Chads Kitchens Ltd | Manufacturing | 2002 |
| Challengers Carpentry & Joinery Limited | Manufacturing | 2025 |
| Chambers Utilities Ltd | Construction | 2025 |
| Chameleon Group Services Ltd | Administrative & support | 2024 |
| Chameleon Products Limited | Professional & scientific | 2001 |
| Chance Champs Ltd | Arts & recreation | 2024 |
| Chantell Healthcare Ltd | Health & social care | 2022 |
| Chapel Windows Limited | Manufacturing | 1984 |
| Charlie Nolan Properties Limited | Real estate | 2025 |
| Charlies Chippy & Kebabs Ltd | Hospitality | 2021 |
| Cheadle Noodle Bar Ltd | Hospitality | 2025 |
| Chef Robinson Ltd | Hospitality | 2024 |
| Chelsea Baby Limited | Administrative & support | 2021 |
| Chelsea Jade Design Ltd | Professional & scientific | 2026 |
| Cheslyn HAY Transport Company Ltd | Transport & logistics | 2005 |
| Chestnut Sheds & Fencing Ltd | Construction | 2013 |
| CHI CHI Gifts & Interiors Limited | Wholesale & retail | 2016 |
| Chilli Spice Pensnett Ltd | Hospitality | 2026 |
| Chinatown (UK) 18288 Ltd | Hospitality | 2025 |
| Chmiel Ltd | Administrative & support | 2017 |
| Choice Confectionery Limited | Wholesale & retail | 1989 |
| Choice Trading (Northern) Limited | Professional & scientific | 1994 |
| Chosen 10 Properties Limited | Real estate | 2025 |
| Chris Dobey Darts Limited | Arts & recreation | 2017 |
| Christian Malcolm Sports Foundation CIC | Administrative & support | 2022 |
| Chummys Bakery Ltd | Wholesale & retail | 2021 |
| Chummys Corporate Orders Ltd | Wholesale & retail | 2020 |
| Chummys Holdings Limited | Wholesale & retail | 2022 |
| Churchfields Real Estate Limited | Real estate | 2024 |
| CID Trans Construct Ltd | Construction | 2019 |
| Cirque L'Amour Ltd | Arts & recreation | 2020 |
| Citadel Services Ltd | Manufacturing | 2015 |
| CJ Lock & Key Limited | Real estate | 2023 |
| CJ Room Developments Limited | Real estate | 2023 |
| CJ Room Investments Limited | Real estate | 2023 |
| CJ Room Properties Limited | Real estate | 2023 |
| Cjbcleaning Ltd | Administrative & support | 2024 |
| Cjgtrading Ltd | Information & communication | 2020 |
| CJR Investments Ltd | Real estate | 2022 |
| CK Performance Football Limited | Arts & recreation | 2025 |
| CK Services Limited | Administrative & support | 2008 |
| CK10 Properties Limited | Real estate | 2023 |
| Claptrap the Venue Limited | Hospitality | 2017 |
| Classic Carbs UK Ltd | Manufacturing | 2024 |
| Classic PUB Design Limited | Professional & scientific | 2009 |
| Classic Welding Supplies Limited | Administrative & support | 2008 |
| Clawfrace Ltd | Wholesale & retail | 2018 |
| Clayton Electrical Services Ltd | Construction | 2024 |
| Clear View Accountancy Services Limited | Professional & scientific | 2025 |
| Clearance Kingdom Ltd | Wholesale & retail | 2025 |
| Clearview Software Limited | Information & communication | 2001 |
| Clent Electrical Limited | Construction | 2012 |
| Clidelook Ltd | Wholesale & retail | 2018 |
| Cliff Park Holdings Ltd | Financial services | 2025 |
| Cliff Park Ludlow Ltd | Real estate | 2025 |
| Clifton Rain Limited | Wholesale & retail | 2024 |
| Clive Harris Property Limited | Real estate | 2015 |
| Clonoe Cyclone Darts Ltd | Arts & recreation | 2026 |
| Clouseau Music Limited | Information & communication | 1994 |
| Clulow & Co Limited | Hospitality | 2015 |
| CMF Properties (NW) Ltd | Real estate | 2025 |
| Codsall House Limited | Households | 2014 |
| Coinonomy Ltd | Information & communication | 2025 |
| Coinscore Ltd | Wholesale & retail | 2019 |
| Coldicone Ltd | Administrative & support | 2018 |
| Collateral Ltd | Extraterritorial | 2012 |
| Collclad Ltd | Financial services | 2017 |
| Collectables Hunter Limited | Wholesale & retail | 2023 |
| Combact Limited | Wholesale & retail | 2020 |
| Comfort Performance Specialist Motors Ltd | Wholesale & retail | 2024 |
| Commercial Clinic Solutions Ltd | Wholesale & retail | 2024 |
| Commercial Express Quotes Limited | Financial services | 1999 |
| Commonside Services Ltd | Wholesale & retail | 2016 |
| Compass Commercial Ltd | Administrative & support | 2020 |
| Compass Electrical Contractors Limited | Construction | 2021 |
| Compass F.M.B. Limited | Administrative & support | 2007 |
| Compass Facilities Manage Build Limited | Construction | 2025 |
| Compass FMB Consulting Limited | Professional & scientific | 2023 |
| Compass Mechanical & Electrical Limited | Construction | 2016 |
| Compass Protection Manufacturing Ltd | Manufacturing | 2018 |
| Compbringer Ltd | Wholesale & retail | 2018 |
| Complete Garage Doors (Halesowen) Ltd | Construction | 2003 |
| Complete Shopfront Solutions Limited | Extraterritorial | 2014 |
| Complete Window Systems Limited | Manufacturing | 2004 |
| Complexion Aesthetics Limited | Health & social care | 2024 |
| Computek IT Limited | Information & communication | 2016 |
| Computek Solutions Limited | Other services | 2026 |
| Comteach Ltd | Administrative & support | 2018 |