| C S Innovative Surgery Limited | Health & social care | 2015 |
| C Squared Building Automation Limited | Manufacturing | 2010 |
| C T J Craddock Surgery Ltd. | Health & social care | 2013 |
| C&E Pubs Ltd | Hospitality | 2026 |
| C&T Enterprises Ltd | Hospitality | 2020 |
| C.C. Contracting Limited | Construction | 1992 |
| C.I.S. Group Imports Limited | Wholesale & retail | 2006 |
| C.N. Computers Limited | Information & communication | 1995 |
| C.W.P. Wilkes and SON Limited | Agriculture & fishing | 1980 |
| C.Y. Electrical and Cranes Company Limited | Other services | 1975 |
| C1-R Limited | Wholesale & retail | 2024 |
| C3 Design Approvals Limited | Professional & scientific | 2017 |
| Cadence Agile Consultancy Ltd | Information & communication | 2023 |
| Cadmore Lodge Limited | Health & social care | 2014 |
| Caesielus Ltd | Manufacturing | 2016 |
| Cafe NO 5 Kinver Ltd | Administrative & support | 2020 |
| Caffè Fresco Ltd | Manufacturing | 2020 |
| Caju Oaks of Justice Ltd | Education | 2025 |
| Caledonia (Brierley Hill) Residents Management Limited | Households | 2025 |
| Callan Rydz Limited | Arts & recreation | 2021 |
| Callaura Limited | Information & communication | 2007 |
| Calloway Digital Ltd | Information & communication | 2025 |
| Cambridge XYZ Limited | Professional & scientific | 2017 |
| Camel Thorn Films Limited | Information & communication | 2022 |
| Cameo Business Services Limited | Administrative & support | 2024 |
| Campus Investments Limited | Real estate | 2016 |
| Campus Renovations Ltd | Construction | 2019 |
| Canafield Limited | Administrative & support | 2003 |
| Candy Floss Ltd | Wholesale & retail | 2026 |
| Candymore Limited | Wholesale & retail | 2025 |
| Canteen & Changing Room Furniture Ltd | Wholesale & retail | 2001 |
| Capoeira Harborne Community Interest Company | Education | 2026 |
| Captain Kandi Ltd | Professional & scientific | 2009 |
| Capture Print Ltd | Manufacturing | 2025 |
| Car Storage Central Limited | Real estate | 2018 |
| Caraca JAC Ltd | Real estate | 2009 |
| Care 2 Ltd | Health & social care | 2020 |
| Care Input 2 U Ltd | Administrative & support | 2024 |
| Career Development Institute | Other services | 2012 |
| Caribbe@N Kitchen Ltd | Hospitality | 2019 |
| Carkus Solutions Ltd | Manufacturing | 2018 |
| Carlton Developments West Midlands Limited | Construction | 2008 |
| Carns Company Holdings Ltd | Financial services | 2026 |
| Carnwarvel Cottages Limited | Administrative & support | 1998 |
| Caroline Creba Fine Jewellery Ltd | Manufacturing | 2025 |
| Carpet Roles UK Ltd | Administrative & support | 2025 |
| Carrow Holdings Ltd | Real estate | 2026 |
| Carsharlton (North ST) Limited | Construction | 2013 |
| Carters Pets & Garden Supplies Ltd | Wholesale & retail | 2026 |
| Castle Nursery (Bromsgrove) Limited | Financial services | 2010 |
| Castle View (NO. 1) Management Company Limited | Construction | 1982 |
| Castlefield Products Limited | Extraterritorial | 2007 |
| Cat CNC Limited | Professional & scientific | 2019 |
| Cat Systems Ltd | Information & communication | 2025 |
| Caveco Creative Limited | Other services | 2022 |
| Cavendish Property Management Ltd | Real estate | 2024 |
| CB Prestwood Properties Limited | Real estate | 2024 |
| CCF Group Holdings Ltd | Construction | 2024 |
| CD Ultra Clean Limited | Administrative & support | 2016 |
| CDF Management Group Ltd | Administrative & support | 2009 |
| Cedar Grange (Kinver) Management Company Limited | Households | 2013 |
| Cedar Vehicle Supply Ltd | Wholesale & retail | 1998 |
| Cedargrove Materials Limited | Manufacturing | 1998 |
| Cedas Property Limited | Real estate | 2010 |
| Celebrant Circle Ltd | Education | 2022 |
| Cellars Indian Cuisine Ltd | Hospitality | 2012 |
| CEN Holdings Limited | Financial services | 2021 |
| Central (05) Ltd. | Real estate | 1987 |
| Central Leisure Limited | Wholesale & retail | 2004 |
| Central Props Ltd | Information & communication | 2023 |
| Century Electrical Ltd | Construction | 2021 |
| Cert Holdings Limited | Real estate | 2023 |
| Cert Solutions Ltd | Education | 2018 |
| CF Concept Ltd | Professional & scientific | 2019 |
| CF1 Holdings Ltd | Other services | 2022 |
| CGA Immersive Ltd | Information & communication | 2024 |
| CH Machine Tools Limited | Professional & scientific | 2018 |
| Chad Company Limited | Arts & recreation | 2022 |
| Chairs for Work Limited | Wholesale & retail | 2013 |
| Chambers Property Ltd | Real estate | 2020 |
| Chameleon Tax Consultants Limited | Professional & scientific | 2026 |
| Champions Rising Limited | Health & social care | 2014 |
| Champs Pet Foods Ltd | Wholesale & retail | 2025 |
| Champs Pet Supplies Ltd | Wholesale & retail | 2025 |
| Chams Contractors Limited | Construction | 2024 |
| Chandini Property Holdings Ltd | Real estate | 2025 |
| Change Management & Lean Consultancy Limited | Professional & scientific | 2020 |
| Change-It Consulting Ltd | Information & communication | 2017 |
| Change-It Public Sector Limited | Information & communication | 2016 |
| Chanok Estate Management Ltd | Real estate | 2023 |
| Chapel Furnishings Limited | Wholesale & retail | 2009 |
| Chapel Holdings Limited | Financial services | 1997 |
| Chaperone Surgery Limited | Extraterritorial | 2019 |
| Chapman & Co Notaries Ltd | Professional & scientific | 2015 |
| Chapter Services Group Limited | Other services | 2015 |
| Charlotte Bucknall Care Limited | Other services | 2023 |
| Charmatt Developments Limited | Construction | 2013 |
| Charmes Limited | Professional & scientific | 2009 |
| Chatsworth Angling (Dudley) Limited | Administrative & support | 2022 |
| Chattha Traders Ltd | Wholesale & retail | 2026 |