| Canine Haven Ltd | Agriculture & fishing | 2025 |
| Cannatural Limited | Wholesale & retail | 2017 |
| Cannock Bumpers and Plastics (Midlands) Ltd | Wholesale & retail | 2001 |
| Cannock Care Company Ltd | Health & social care | 2026 |
| Cannock Chase Flooring Limited | Construction | 2024 |
| Cannock Dinning Limited | Hospitality | 2024 |
| Cannock Headache Treatment Limited | Health & social care | 2010 |
| Cannock Mobile Welding Limited | Manufacturing | 2002 |
| Cannockwood Management Limited | Professional & scientific | 2014 |
| Canterbury Tools Limited | Professional & scientific | 2012 |
| Cantonese Express Parkhall Limited | Hospitality | 2025 |
| CAP Assets Limited | Real estate | 2021 |
| CAPACITY4CARE Limited | Health & social care | 2017 |
| Cape Cars Ltd | Wholesale & retail | 2023 |
| Cape Oak Property Ltd | Real estate | 2022 |
| Capital Franchising Limited | Administrative & support | 2024 |
| Capital OIL Limited | Financial services | 2005 |
| Capital Recruitment Investments Ltd | Administrative & support | 2021 |
| Capital Retail Limited | Real estate | 2020 |
| Cappaghglass (Holdings) Ltd | Real estate | 2002 |
| Car Accident Centre Ltd | Wholesale & retail | 2017 |
| Car Electrics Ltd | Wholesale & retail | 2010 |
| Car HUT Walsall Limited | Wholesale & retail | 2020 |
| Car Sales Wednesbury Ltd | Wholesale & retail | 2025 |
| Cara-Fix (Midlands) Ltd | Wholesale & retail | 2016 |
| Carbon Neutral Engineering Limited | Administrative & support | 2008 |
| Card Party Limited | Wholesale & retail | 1994 |
| Cardboardboxes.Co.Uk Ltd | Administrative & support | 2017 |
| Cardinal Home Improvements Ltd | Construction | 2019 |
| Care Above and Beyond Ltd | Health & social care | 2025 |
| Care Comm 2011 Limited | Administrative & support | 2012 |
| Care Company for the Manufacture and Packaging of Foodstuffs Limited | Manufacturing | 2022 |
| Care Direct & Support Solutions Ltd. | Health & social care | 2015 |
| Care XY Limited | Health & social care | 2011 |
| Career Progressions Ltd. | Administrative & support | 2003 |
| Careerbumps Limited | Professional & scientific | 2015 |
| Careerlink Holdings Limited | Financial services | 2012 |
| Careerlink Limited | Administrative & support | 2002 |
| Carevora Ltd | Information & communication | 2026 |
| Carezen Home Care Ltd | Health & social care | 2024 |
| Cargo Nest Ltd | Transport & logistics | 2024 |
| Carhot Limited | Construction | 1986 |
| Caribbean Light Workshop Ltd | Real estate | 2023 |
| Caring Care Limited | Health & social care | 2008 |
| Caring Prospect Limited | Health & social care | 2020 |
| Carl Chinn Limited | Manufacturing | 1999 |
| Carl Lillywhite Cars Limited | Wholesale & retail | 2001 |
| Carlot Robotics and Installation Limited | Manufacturing | 2024 |
| Carolcare Limited | Health & social care | 2019 |
| Caroline Day Trips and Holidays Ltd | Hospitality | 2019 |
| Caroline Street Number 3 Limited | Construction | 2019 |
| Carpatic Logistics Ltd | Transport & logistics | 2020 |
| Carprohub Limited | Wholesale & retail | 2025 |
| Carpworld Limited | Wholesale & retail | 2025 |
| Carrot Top Films Limited | Information & communication | 2015 |
| Carson Data Solutions Ltd | Administrative & support | 2016 |
| Carswithdot Diagnostic Limited | Wholesale & retail | 2026 |
| Cart Plus Ltd | Wholesale & retail | 2026 |
| Cartbridge Investments Limited | Real estate | 2024 |
| Carter West Holdings Ltd | Financial services | 2022 |
| Carter's Ponds and Landscapes Ltd | Administrative & support | 2012 |
| Carters Cleaners Elite Ltd | Administrative & support | 2023 |
| Carters Green Clinic & Business Centre Ltd | Wholesale & retail | 2018 |
| Carters Green WB Properties Limited | Real estate | 2021 |
| Carters Specialist Services Ltd | Administrative & support | 2024 |
| Cartstone Property Ltd | Real estate | 2022 |
| Carver & Co (Engineers) Limited | Manufacturing | 1994 |
| Carver Climate Systems Limited | Professional & scientific | 1986 |
| Carver Group Limited | Professional & scientific | 1952 |
| Carver International Limited | Manufacturing | 1944 |
| Carwood Design Print Limited | Administrative & support | 2004 |
| CARZ24Z Ltd | Construction | 2025 |
| Casa Cosy Limited | Professional & scientific | 2022 |
| Casa Gurkha Ltd | Hospitality | 2025 |
| Casa JSK Limited | Construction | 2024 |
| Casa Luxe Ltd | Hospitality | 2024 |
| Casa Nuvé Designs Ltd | Wholesale & retail | 2025 |
| Case Medical Ltd | Health & social care | 2022 |
| Casey Ghetto Driver Limited | Wholesale & retail | 2016 |
| Cash Champion Channel Ltd | Wholesale & retail | 2024 |
| Cash Money Limited | Professional & scientific | 2015 |
| Caspian Walsall Ltd | Hospitality | 2023 |
| Casson Beckman Business and Tax Advisers Limited | Extraterritorial | 2004 |
| Castle Associates WM Limited | Transport & logistics | 2015 |
| Castle Decor Centre Ltd | Wholesale & retail | 2026 |
| Castle Scaffolding (Staffordshire) Ltd | Construction | 2022 |
| Castle Tapes and Industrial Solutions Limited | Extraterritorial | 2018 |
| Castle West Developments Limited | Construction | 2018 |
| Castlepride Developements Ltd | Construction | 2010 |
| Catalina S Grill Limited | Hospitality | 2017 |
| Catalyst DBC Ltd | Information & communication | 2018 |
| CATER4HEALTHCARE Ltd | Administrative & support | 2019 |
| Catering Equipment Direct Ltd | Wholesale & retail | 2025 |
| Caterpillar Supported Housing Limited | Real estate | 2021 |
| Cathedral Funeral Services (Hereford) Limited | Other services | 2004 |
| Catherine Care Limited | Health & social care | 2008 |
| Catherine Contracts Limited | Administrative & support | 2018 |
| Catton Creative Ltd | Wholesale & retail | 2025 |
| Cave Cafe Ltd | Hospitality | 2024 |
| Cavill Holdings Limited | Real estate | 1994 |