| Cawarden Co. Limited | Construction | 2000 |
| Cawarden Holdings Limited | Agriculture & fishing | 2002 |
| Cawarden Reclaim Ltd | Wholesale & retail | 2025 |
| Cawarden Resources Limited | Professional & scientific | 2011 |
| CB Homes and Developments Ltd | Real estate | 2015 |
| CB Invincible Ltd | Arts & recreation | 2024 |
| CBS Complete Ltd | Construction | 2008 |
| CC Communications Limited | Information & communication | 2007 |
| CC Golf Operations Ltd | Education | 2025 |
| CC Golf Retail Ltd | Wholesale & retail | 2024 |
| CC Golf Services Ltd | Arts & recreation | 2024 |
| CC Plant Hire and Groundworks Ltd | Construction | 2017 |
| CC Wealth Limited | Financial services | 2007 |
| CDF Scaffolding Ltd | Construction | 2020 |
| CDP Transport Solutions Ltd | Transport & logistics | 2017 |
| CEC Optical Limited | Wholesale & retail | 2011 |
| CEL Group (Holdings) Limited | Financial services | 2018 |
| CEL Group UK Holdings Limited | Financial services | 2022 |
| Cellar Darlaston Limited | Professional & scientific | 2024 |
| Centaur Metals Limited | Wholesale & retail | 2014 |
| Centivus Limited | Information & communication | 2008 |
| Central Asset Disposal Limited | Wholesale & retail | 2015 |
| Central Carpentry & Construction Ltd | Construction | 2022 |
| Central England Co-Op Pension Trustee Limited | Financial services | 2014 |
| Central England Dersingham Limited | Wholesale & retail | 2003 |
| Central EPC Limited | Professional & scientific | 2012 |
| Central Properties (Midlands) Limited | Real estate | 2018 |
| Central Saddle Fit Limited | Wholesale & retail | 2023 |
| Central Tack Limited | Wholesale & retail | 2014 |
| Central Timekeeping Solutions Ltd | Manufacturing | 2025 |
| Centri-Electric Limited | Manufacturing | 1980 |
| Centri-Tech Limited | Manufacturing | 1978 |
| Century Consultants Limited | Professional & scientific | 2003 |
| Cestyx Ltd | Administrative & support | 2021 |
| CF & WJ Limited | Hospitality | 2023 |
| CF Social Work Assessments Ltd | Health & social care | 2025 |
| CFM Group Ltd | Administrative & support | 2023 |
| CG Tree Services Limited | Administrative & support | 2025 |
| CGI Facades Limited | Construction | 2019 |
| CGI Holdings Limited | Construction | 2026 |
| Chadha & Chadha Limited | Real estate | 2021 |
| Chadstowe Limited | Construction | 2023 |
| Chalice Electronics Limited | Extraterritorial | 1988 |
| Chamberlain Recruitment Limited | Administrative & support | 2005 |
| Chamberlains Fish & Chips Restaurants Ltd | Extraterritorial | 2005 |
| Chance Interactive Ltd | Information & communication | 2026 |
| Chancery Consulting Limited | Administrative & support | 1997 |
| Char Wallah UK Ltd | Hospitality | 2016 |
| Charles Anthony Estates Limited | Construction | 2017 |
| Charles Hine and SON Limited | Other services | 1956 |
| Charlotte Hair Penkridge Limited | Other services | 2018 |
| Charming Covers Limited | Hospitality | 2009 |
| Charter Management Limited | Real estate | 2002 |
| Chase Chiropractic Ltd | Health & social care | 2017 |
| Chase Ecology Ltd | Professional & scientific | 2017 |
| Chateau Television Limited | Information & communication | 2020 |
| Chatsworth Wealth Management Limited | Financial services | 2018 |
| Cheekfillers Ltd | Hospitality | 2023 |
| Cheff the Greek Ltd | Hospitality | 2023 |
| CHEM2GO Limited | Wholesale & retail | 2014 |
| Cherishers 811 CIC | Households | 2017 |
| Chesterfield Road (Lichfield) Management Company Limited | Households | 2004 |
| Chevrelles Consulting Ltd | Other services | 2008 |
| Chief Panda Limited | Administrative & support | 2024 |
| Chilli Information Solutions Limited | Information & communication | 2009 |
| China Enterprise UK Limited | Manufacturing | 2006 |
| Chiron AI Ltd | Information & communication | 2023 |
| Chmiel Overton Limited | Professional & scientific | 2009 |
| Choice Finance Mortgages & Financial Solutions Limited | Financial services | 2014 |
| Chris Preston Ltd | Manufacturing | 2019 |
| Chris Preston Property Limited | Real estate | 2020 |
| Christian Dean Financial Planning Ltd | Financial services | 2013 |
| Chuckie EGG Limited | Information & communication | 2024 |
| Church Farm Whittington Limited | Households | 2004 |
| Church Jobs Limited | Professional & scientific | 2009 |
| Churchbridge Facilities Ltd | Administrative & support | 2021 |
| Churchbridge Holdings Limited | Financial services | 2023 |
| Ciasom Properties Limited | Real estate | 2017 |
| Ciclozone Limited | Information & communication | 2019 |
| Cigno WM Ltd | Hospitality | 2019 |
| CIO Download Ltd | Professional & scientific | 2024 |
| Cirkular Ltd | Information & communication | 2024 |
| Cismartuk.Com Limited | Wholesale & retail | 2008 |
| Citrine Capital Investments Ltd | Real estate | 2023 |
| City Cars (Midlands) Limited | Transport & logistics | 2000 |
| City Furniture (Clearance) Limited | Wholesale & retail | 2006 |
| City Nails Lichfield Ltd | Other services | 2025 |
| City of Lunaria Limited | Professional & scientific | 2022 |
| CJ Compliance Services Ltd | Other services | 2019 |
| CJ Tandem Ltd | Administrative & support | 2023 |
| CJM Flat Roofing Ltd | Construction | 2026 |
| CJO Safety Solutions Ltd | Professional & scientific | 2024 |
| Cjpm Supplies Ltd | Wholesale & retail | 2024 |
| Cjsb Limited | Administrative & support | 2001 |
| CJW Legacy Ltd | Hospitality | 2026 |
| CK Aesthetics Ltd | Health & social care | 2026 |
| CK112 Limited | Hospitality | 2017 |
| Ckcm Holdings Limited | Financial services | 2023 |
| CKR & Associates Limited | Administrative & support | 2019 |
| CKS Construction Ltd | Construction | 2022 |