| CB Fibre Ltd | Information & communication | 2024 |
| CB Roofing Solutions Ltd | Construction | 2022 |
| CBA Financial Services (MK) Ltd | Professional & scientific | 2008 |
| CBM Repairs Limited | Manufacturing | 2026 |
| CBW Construction, Groundworks and Landscaping Ltd | Construction | 2026 |
| CC Supply Ltd | Wholesale & retail | 2026 |
| CCH Travel Ltd | Administrative & support | 2025 |
| CD Engineering Limited | Manufacturing | 1997 |
| CDC Education Consultancy Ltd | Administrative & support | 2025 |
| Cdcc Property Investments Ltd | Real estate | 2022 |
| CDM Group Holdings Ltd | Financial services | 2025 |
| CDM Plastics Limited | Manufacturing | 2012 |
| Cedar Real Estate Developments Ltd | Construction | 2014 |
| CEJ Business Solutions Ltd | Information & communication | 2021 |
| Cell PL Ltd | Wholesale & retail | 2012 |
| Centech Park Developments Ltd | Construction | 2020 |
| Centech Park Management Company Limited | Construction | 2006 |
| Central Automation Ltd | Professional & scientific | 2012 |
| Central Business Development Limited | Administrative & support | 2010 |
| Central Business Finance Ltd | Financial services | 2021 |
| Central Fans-Colasit Limited | Manufacturing | 1987 |
| Central Finance Holdings Limited | Professional & scientific | 2015 |
| Central Finance Top Co Limited | Professional & scientific | 2022 |
| Central Garage (Marshfield) Limited | Wholesale & retail | 2001 |
| Central IT Solutions Ltd | Information & communication | 2006 |
| Central Laser Services Limited | Manufacturing | 2013 |
| Central NO1 Limited | Construction | 2020 |
| Central Taxis Redditch Ltd | Transport & logistics | 2022 |
| Centre of Attention Ltd | Information & communication | 2025 |
| Century Contracting Ltd | Other services | 2024 |
| CEO Trans Ltd | Transport & logistics | 2017 |
| Cerf Consulting Limited | Information & communication | 2016 |
| Cerrone Estates Limited | Real estate | 2020 |
| CG Capital Investments Ltd | Administrative & support | 2024 |
| CH Holdings Group Ltd | Financial services | 2018 |
| CH1 Foods Ltd | Hospitality | 2022 |
| Chaceley Properties Limited | Real estate | 1957 |
| Challenger Games Limited | Manufacturing | 2021 |
| Challenger Publishing Limited | Information & communication | 2021 |
| Chandler & Osborne Limited | Administrative & support | 2016 |
| Chandler & Osborne Properties Limited | Real estate | 2020 |
| Change Psychology Limited | Health & social care | 2015 |
| Chapel Court Residents Association Limited | Construction | 1992 |
| Chapel Farm Barns Residents Association Limited | Households | 1990 |
| Chapples & Apples Limited | Hospitality | 2025 |
| Chaps Barbers 2015 Ltd | Other services | 2020 |
| Chapter 23 Ltd | Hospitality | 2024 |
| Chapter Law Limited | Professional & scientific | 2019 |
| Chapters (Warwick) Limited | Other services | 2002 |
| Charis Technology Limited | Extraterritorial | 1994 |
| Charlbrook Construction Limited | Manufacturing | 2019 |
| Charles Grosvenor Construction LLP | | 2016 |
| Charles Grosvenor Holdings Limited | Financial services | 2016 |
| Charles Grosvenor Limited | Construction | 1991 |
| Charles Grosvenor Property Developments Limited | Construction | 1969 |
| Charles Lovell & Co. Limited | Professional & scientific | 2003 |
| Charles Street Car Park Ltd | Real estate | 2023 |
| Charlie Mills Event & Venue Management Limited | Administrative & support | 2010 |
| Charlotte Williams Limited | Other services | 2021 |
| Charlotte Williams London Properties Ltd | Real estate | 2021 |
| Chase and Co. Retail Limited | Wholesale & retail | 2025 |
| Chaser Compliance Ltd | Professional & scientific | 2019 |
| Chaytor Services Limited | Hospitality | 2015 |
| Checkett & Sons Limited | Construction | 2016 |
| Cheema's Traditional Cuisine Ltd | Hospitality | 2020 |
| Cheltenham Property Services Limited | Extraterritorial | 2014 |
| Cherington Close 1971 Limited | Extraterritorial | 2014 |
| Cherry Dog Ltd | Extraterritorial | 2021 |
| Chestnut Business Solutions Limited | Administrative & support | 2025 |
| Chickin Joy Limited | Hospitality | 2014 |
| Childs Minds Play Therapy Limited | Administrative & support | 2021 |
| Chilli POD Limited | Administrative & support | 2006 |
| Chillishot Limited | Information & communication | 2008 |
| China Grey Limited | Hospitality | 2017 |
| Choice Floors Limited | Construction | 2026 |
| Chompingtons Ltd | Wholesale & retail | 2025 |
| Chris Blackwell Limited | Arts & recreation | 2008 |
| Christina MAY Cake Design Ltd | Administrative & support | 2013 |
| Christopher James Recruitment Ltd | Administrative & support | 2026 |
| Chromatica Ltd | Manufacturing | 2004 |
| CHT Consulting Ltd | Professional & scientific | 2025 |
| Church Art Limited | Arts & recreation | 2019 |
| Church Green East Services Limited | Administrative & support | 2021 |
| Church Lane Building & Contracting Limited | Construction | 2018 |
| Church Lane Building Ltd | Extraterritorial | 2024 |
| Church Studio Limited | Arts & recreation | 2019 |
| Cinema Sound Ltd | Manufacturing | 2010 |
| Ciport Ltd | Real estate | 2024 |
| Circulate Ltd | Wholesale & retail | 2013 |
| Cite Construct Ltd | Construction | 2019 |
| Cite Construction Ltd | Construction | 2014 |
| City Sightseeing Limited | Administrative & support | 1998 |
| CJ Construction Midlands Ltd | Construction | 2024 |
| CJ Harrison Direct Limited | Health & social care | 2022 |
| CJ Occupational Therapy Limited | Health & social care | 2014 |
| CJ Tysa Limited | Real estate | 2020 |
| CJP Plastering & Rendering Ltd | Construction | 2023 |
| CJR Automotive Ltd | Manufacturing | 2026 |
| CKA Services Ltd | Information & communication | 2018 |
| Cksl Property Developments Ltd | Real estate | 2025 |