| Burns & Boyce Ltd | Professional & scientific | 2024 |
| Burns Facilities Management Solutions Ltd | Professional & scientific | 2024 |
| Burntwood Flooring and Sanding Services Limited | Construction | 2025 |
| Burton Farm Ltd | Agriculture & fishing | 2021 |
| Business Certification Solutions Ltd | Professional & scientific | 2020 |
| Bustean Ltd | Transport & logistics | 2025 |
| Bute Lodge Property Investment Company Limited | Real estate | 2024 |
| BVS Automotive Repairs Limited | Wholesale & retail | 2024 |
| BY the Wild Wood Ltd | Wholesale & retail | 2025 |
| Bykajal Ltd | Professional & scientific | 2025 |
| Byte Competitions Ltd | Arts & recreation | 2025 |
| C & D Picioca Limited | Hospitality | 2025 |
| C a Belcher Developments Limited | Construction | 2024 |
| C a Belcher Ltd | Construction | 2018 |
| C D C Design Limited | Professional & scientific | 2009 |
| C J S Design Limited | Professional & scientific | 1998 |
| C J S Safety Systems Limited | Manufacturing | 2003 |
| C J Sports Limited | Construction | 2009 |
| C J Springthorpe Limited | Agriculture & fishing | 2017 |
| C J W Bailey Limited | Construction | 2018 |
| C K Gurkha Limited | Hospitality | 2024 |
| C Khukris Limited | Hospitality | 2026 |
| C S Classic Parts Limited | Extraterritorial | 2010 |
| C T Inspection Services Ltd | Other services | 2019 |
| C&P IT Ltd | Transport & logistics | 2025 |
| C. Taylor Electrical Limited | Extraterritorial | 2005 |
| C. W. Bream Limited | Manufacturing | 2003 |
| C.D Civils Ltd | Construction | 2016 |
| C.D Electrical Design & Installation Limited | Energy | 2008 |
| C.E.J Haime Group Limited | Wholesale & retail | 2021 |
| C.M. Automation Ltd | Information & communication | 2012 |
| C.S.D Carpentry Services Ltd | Construction | 2004 |
| CA Sheet Metal Solutions Ltd | Administrative & support | 2010 |
| Cabrita Ventures Ltd | Professional & scientific | 2026 |
| Cabtek Limited | Manufacturing | 1993 |
| Cabuccino Ltd | Hospitality | 2021 |
| Cadeby Court Management Company Limited | Households | 2017 |
| Cadena Sales Services Ltd | Professional & scientific | 2024 |
| Cadwgan Investments Ltd | Professional & scientific | 2018 |
| Cadwgan Properties Ltd | Real estate | 2018 |
| Cafe Randevu Ltd | Hospitality | 2023 |
| Cafe ROJ Nuneaton Ltd | Hospitality | 2020 |
| Caitlin Mcmullen TM Ltd | Construction | 2025 |
| Calcutta Kitchen Nuneaton Ltd | Hospitality | 2025 |
| Caldecote Hall Limited | Real estate | 2010 |
| Caldecote Residents Management Limited | Households | 2004 |
| Caldecote Village Hall Limited | Administrative & support | 2008 |
| Calibur Ltd | Professional & scientific | 2026 |
| Calinmaka.Co. Ltd | Transport & logistics | 2018 |
| CAMEL100 Limited | Education | 2011 |
| Camino Developments Limited | Health & social care | 2014 |
| Camino Healthcare (Kilsby) Limited | Health & social care | 2023 |
| Camino Healthcare (Nottingham) Limited | Health & social care | 2025 |
| Camino Healthcare (Nuneaton) Limited | Health & social care | 2017 |
| Camino Healthcare (West Bromwich) Limited | Health & social care | 2009 |
| Camino Healthcare Limited | Health & social care | 2010 |
| Camozzi Automation Limited | Wholesale & retail | 2002 |
| Camp Farm Limited | Wholesale & retail | 2006 |
| Camp Hill Community CIC | Administrative & support | 2024 |
| Campbell & Campbell Ltd | Professional & scientific | 2024 |
| Campbell Realty Limited | Real estate | 2019 |
| Campbell Software Services Limited | Information & communication | 2008 |
| Campellshop Ltd | Administrative & support | 2021 |
| Camper Van Customs Ltd | Manufacturing | 2011 |
| Camperccino Coffee Services Limited | Hospitality | 2021 |
| Cams Plus Drylining Ltd | Construction | 2020 |
| Camsult Limited | Administrative & support | 2013 |
| Cannon Chase Limited | Real estate | 2019 |
| Cannon Enterprise Ltd | Administrative & support | 2016 |
| Cantrex Ltd | Wholesale & retail | 2025 |
| Capability Coaching & Consultancy Limited | Education | 2017 |
| Capone Transport Limited | Transport & logistics | 2020 |
| Captain's Pizza Ltd | Hospitality | 2025 |
| Capture That Grade Ltd | Education | 2019 |
| Car 4 ME Ltd | Wholesale & retail | 2014 |
| Car Hub Customs Limited | Wholesale & retail | 2026 |
| Carbide Court Management Limited | Real estate | 2015 |
| Carian Wines Ltd | Wholesale & retail | 2019 |
| Caribbean Soul Kitchen Limited | Hospitality | 2025 |
| Carlon 1 Ltd | Real estate | 2023 |
| Carlton Business Limited | Professional & scientific | 2002 |
| Carlton House Farm Ltd | Agriculture & fishing | 2019 |
| Carlton Windows Limited | | 2009 |
| Carmen Transport Ltd | Transport & logistics | 2022 |
| Caroline Court (Peterborough) Management Ltd | Households | 2020 |
| Carpet Centre Nuneaton Limited | Wholesale & retail | 2022 |
| Cars & Vans 2 Hire Ltd | Administrative & support | 2018 |
| Cartecuk Ltd | Wholesale & retail | 2023 |
| Carter Noble Electrical Ltd | Construction | 2023 |
| Carter Noble Properties Ltd | Construction | 2022 |
| Cartern Group Ltd | Professional & scientific | 2021 |
| Cartistry Ltd | Professional & scientific | 2025 |
| Cartour Global Ltd | Administrative & support | 2025 |
| Cartwright Aviation Services Ltd | Manufacturing | 2026 |
| Cartwright Contracting Ltd | Construction | 2021 |
| Cartwright Hands Holdings Limited | Financial services | 2020 |
| Cartwright Hands Ltd | Real estate | 2006 |
| Cartwright Land Limited | Construction | 2021 |
| Cashmore Consultancy Ltd | Information & communication | 2024 |
| Casio Transport Ltd | Transport & logistics | 2023 |