| C & H Roofing Limited | Construction | 2024 |
| C Byrne Travel Ltd | Administrative & support | 2023 |
| C Holford Roofing Limited | Construction | 2025 |
| C J Gaunt Services Ltd | Agriculture & fishing | 2012 |
| C Jeynes Groundworks & Construction Limited | Administrative & support | 2009 |
| Cafe O & D Ltd | Hospitality | 2025 |
| Calathea Supply Chain Limited | Administrative & support | 2022 |
| Calculated Accountancy Ltd | Professional & scientific | 2021 |
| Callow GAS Holdings Limited | Financial services | 2021 |
| Callow GAS Limited | Wholesale & retail | 2021 |
| Callow Oils Limited | Professional & scientific | 2000 |
| Calreu Leases Ltd | Real estate | 2025 |
| Calreu Properties Ltd | Real estate | 2020 |
| Cameron Coach Company Limited | Transport & logistics | 2021 |
| Canine Capers Stourport Limited | Agriculture & fishing | 2021 |
| Caremma Limited | Financial services | 2023 |
| Caritipo Ltd | Other services | 2015 |
| Carridine Transport Ltd | Transport & logistics | 2023 |
| Carrus Solutions Limited | Professional & scientific | 2020 |
| Case Travel Limited | Administrative & support | 2023 |
| Cask Leisure Ltd | Hospitality | 2025 |
| CB Dynamics Limited | Professional & scientific | 2020 |
| CB Tooling Ltd | Professional & scientific | 2024 |
| CCH1 Limited | Hospitality | 2026 |
| Cedar House Management Company Limited | Real estate | 1983 |
| Central Accountancy Services Ltd | Professional & scientific | 2003 |
| Central Garage (Bewdley) Limited | Real estate | 1958 |
| Certa Cito Installations Ltd | Information & communication | 2024 |
| Chaddesley Commercials (Kidderminster) Limited | Real estate | 1978 |
| Chaddesley Garage Holdings Limited | Financial services | 2021 |
| Chaddesley Garage Limited | Wholesale & retail | 2021 |
| Chadwick Bank Garage Ltd | Wholesale & retail | 2003 |
| Chameleon Beauty Limited | Wholesale & retail | 2016 |
| Chameleon Glitter Limited | Wholesale & retail | 2017 |
| Champion Home Solutions Ltd | Construction | 2023 |
| Chance Construction Ltd | Construction | 2013 |
| Chanterelles of Worcester Ltd | Hospitality | 2015 |
| Chanterelles Venue Catering Ltd | Hospitality | 2014 |
| Charlotte Enterprises Limited | Hospitality | 2022 |
| Chefquip Limited | Administrative & support | 1996 |
| Cherry Cherry Studio Limited | Professional & scientific | 2023 |
| Cherthill Limited | Administrative & support | 1981 |
| Chiminon Enterprises Ltd | Arts & recreation | 2024 |
| China Garden 808 Limited | Hospitality | 2022 |
| Chris Puddy Coaching Limited | Extraterritorial | 2020 |
| Chris Wood Ltd | Construction | 2008 |
| Ciceu PD Ltd | Transport & logistics | 2018 |
| Citrus Computing Ltd | Information & communication | 2010 |
| CJM ECS Limited | Construction | 2018 |
| CJN Travel Ltd | Administrative & support | 2015 |
| Claire Howard Consulting Ltd | Professional & scientific | 2024 |
| Clarabella Ltd | Wholesale & retail | 2012 |
| Classic Sports Cars Ltd | Wholesale & retail | 2021 |
| Clastuzer Ltd | Wholesale & retail | 2018 |
| Clear Drain SW Ltd | Other services | 2022 |
| Clear OUT Brothers Limited | Water & waste | 2026 |
| Cleobury Academy Ltd | Professional & scientific | 2016 |
| Click Here 4 Marketing Limited | Information & communication | 2013 |
| Climatic Controls Ltd | Energy | 2024 |
| Clist & Company Limited | Real estate | 1995 |
| Clive James Farrier Limited | Agriculture & fishing | 2003 |
| Cloakedsnake Ltd | Administrative & support | 2019 |
| Cmgsecretarial Ltd | Administrative & support | 2023 |
| CMJ Commercial Mortgages Ltd | Financial services | 2025 |
| CMJ Mortgages Ltd | Financial services | 2022 |
| CMR Cars Ltd | Wholesale & retail | 2024 |
| Coleman Commercial Property Limited | Real estate | 2024 |
| Coleman Property Limited | Real estate | 2021 |
| Colibri International Ltd | Administrative & support | 2015 |
| Colin Froggatt Financial Planning Ltd | Financial services | 2013 |
| Colley International Logistics Ltd | Transport & logistics | 2024 |
| Collowood Homes Limited | Construction | 2024 |
| Coln Engineering Ltd. | Wholesale & retail | 2017 |
| Coltec Engineering Ltd | Professional & scientific | 2025 |
| Colvine Communications Ltd | Professional & scientific | 2017 |
| Colwood Estate Planning Services Ltd | Financial services | 2015 |
| Community Digital Access CIC | Information & communication | 2025 |
| Compco Safety Systems Limited | Wholesale & retail | 2021 |
| Coney Green OFF Road Centre Limited | Administrative & support | 2015 |
| Cook & Swallow Developments Ltd | Construction | 2023 |
| Cork Leisure Ltd | Hospitality | 2025 |
| Cosmicfreedom Ltd | Wholesale & retail | 2019 |
| Cosset Homes Ltd | Real estate | 2022 |
| Cosset Services Ltd | Wholesale & retail | 2023 |
| Costin Commercials Limited | Administrative & support | 2006 |
| Cotswold Awnings Ltd | Construction | 2024 |
| CR Commercial Cleaning Ltd | Administrative & support | 2024 |
| Crafterpeneur Ltd | Wholesale & retail | 2018 |
| Creative Carpentry Solutions Ltd | Construction | 2020 |
| Creative Chaos Co. Ltd | Wholesale & retail | 2025 |
| Creative Pond Covers Limited | Manufacturing | 2007 |
| Cressrelles Publishing Co. Limited | Information & communication | 1972 |
| CRG Building Services Ltd | Construction | 2014 |
| Critical Cognition Ltd | Information & communication | 2026 |
| CRK Holdings Limited | Real estate | 2024 |
| Crmhq Limited | Information & communication | 2020 |
| Croftdale Services Limited | Professional & scientific | 2015 |
| Crown Print Limited | Wholesale & retail | 2010 |
| Crystal Cleaning Company Limited | Administrative & support | 2000 |
| CSM Beasley Holdings Ltd | Extraterritorial | 2025 |