| Caron Leigh Aesthetics Ltd | Health & social care | 2018 |
| Cars (Kidderminster) Limited | Wholesale & retail | 2008 |
| Case Corporation Consultancy Ltd | Professional & scientific | 2019 |
| Castle Steel Services Limited | Manufacturing | 2008 |
| Catcheez Ltd | Information & communication | 2025 |
| Cateena Ltd | Wholesale & retail | 2021 |
| CAW Radiology Services Ltd | Health & social care | 2021 |
| CB Europe Limited | Other services | 2010 |
| CB Painting and Decorating Ltd | Construction | 2022 |
| CD Cheerleading CIC | Arts & recreation | 2024 |
| CDH Draughting Services Ltd | Administrative & support | 2014 |
| CDS Installations & Property Maintenance Limited | Construction | 2017 |
| Cedar Design Studio Ltd | Manufacturing | 2020 |
| Central Trading Estate Management Limited | Real estate | 1990 |
| Cerbyd Consulting Ltd | Information & communication | 2023 |
| Cescie Limited | Wholesale & retail | 2025 |
| Ceylon Spoon Holding Ltd | Hospitality | 2025 |
| Cfuk Limited | Manufacturing | 2024 |
| Cfuk North Limited | Manufacturing | 2024 |
| CG Carpentry & Building (Midlands) Limited | Construction | 2020 |
| Chaddesley Investments Limited | Manufacturing | 2016 |
| Chamberlain Events Limited | Arts & recreation | 2022 |
| Chamberlains H&B I Ltd | Other services | 2021 |
| Chamberlains H&B Ltd | Other services | 2021 |
| Chamberlains H&B XI Ltd | Wholesale & retail | 2014 |
| Charles Fellows Supplies Limited | Wholesale & retail | 1980 |
| Charterfields Management Company Limited | Administrative & support | 2000 |
| Charterstyle Limited | Transport & logistics | 2001 |
| Chase Site Services Limited | Administrative & support | 2020 |
| CHE Services Limited | Professional & scientific | 2020 |
| Chic Decor Limited | Wholesale & retail | 2018 |
| Chilled Curry Foods Ltd | Hospitality | 2025 |
| Chiltern Group Limited | Professional & scientific | 2002 |
| Chip Inn Wombourne Ltd | Hospitality | 2024 |
| Chris Davies & Associates Ltd. | Information & communication | 1991 |
| Chrysler Stables Holistic Centre Ltd | Agriculture & fishing | 2024 |
| Church View Dudley Limited | Real estate | 2018 |
| City Enterprises Ltd | Professional & scientific | 2000 |
| CJD Midlands Limited | Wholesale & retail | 2018 |
| CJE Fire & Security Ltd | Construction | 2018 |
| CJM Utility Services Ltd | Construction | 2022 |
| Cjrhospitality Ltd | Hospitality | 2025 |
| CJT Skin Ltd | Health & social care | 2024 |
| Clamason Group Holdings Limited | Financial services | 2015 |
| Clamason Group Limited | Professional & scientific | 2016 |
| Clamason Holdings Limited | Professional & scientific | 2016 |
| Clare Evans Consultancy Ltd | Other services | 2021 |
| Clarkcomm Limited | Administrative & support | 2003 |
| Clarke Controls & Automation Ltd | Professional & scientific | 2016 |
| Clarke Controls & Distribution Limited | Manufacturing | 2003 |
| Clarke Design & Engineering Limited | Professional & scientific | 2003 |
| Classic Aesthetics UK Ltd | Health & social care | 2023 |
| Clear Open Secure Shopfronts Limited | Manufacturing | 2013 |
| Clearview Leisure Ltd | Hospitality | 2024 |
| Clifford Assets Ltd | Financial services | 2024 |
| Climate Changers UK Ltd | Construction | 2026 |
| Climate EQ Ltd | Education | 2022 |
| Clinical Professional . COM Ltd | Wholesale & retail | 2005 |
| CLJ Heating Ltd | Construction | 2026 |
| Cljm Group Ltd | Other services | 2022 |
| Cloud & Web Limited | Information & communication | 2012 |
| Cloud Telecom Services Limited | Information & communication | 2024 |
| Clover Accountancy Limited | Professional & scientific | 2013 |
| CM Homecare Ltd | Health & social care | 2025 |
| CMH2024 Limited | Real estate | 2024 |
| Cnctech Ltd | Professional & scientific | 2026 |
| COA Consulting Limited | Administrative & support | 2022 |
| Coastline Lifts Ltd | Manufacturing | 2023 |
| Coco Loco Coffee Ltd | Wholesale & retail | 2022 |
| Coffee Express Limited | Wholesale & retail | 2018 |
| Collins Associates Limited | Wholesale & retail | 2020 |
| Colossus Recruitment Limited | Administrative & support | 2015 |
| Commercial Vehicle Parts Direct Ltd | Manufacturing | 2017 |
| Common Place Ltd | Administrative & support | 2024 |
| Complementary Health Inspirational Care C.I.C. | Other services | 2017 |
| Complete Carpentry & Building Services Ltd | Construction | 2018 |
| Complete Carpentry Shropshire Ltd | Manufacturing | 2023 |
| Complete Housing Options Ltd | Real estate | 2020 |
| Composty Limited | Wholesale & retail | 2020 |
| Compucare Limited | Information & communication | 1978 |
| Comsafe Tech Services Limited | Manufacturing | 2013 |
| Concise Mortgages Ltd | Financial services | 2020 |
| Conex IPR Ltd | Professional & scientific | 2011 |
| Conex Universal Limited | Wholesale & retail | 2011 |
| Connor Webster Services Limited | Construction | 2014 |
| Contract Furniture (North) UK Ltd | Manufacturing | 2019 |
| Contract Professional Workforce Limited | Professional & scientific | 1995 |
| Conveyor Bearings Limited | Manufacturing | 2020 |
| Cool Home Products Ltd | Wholesale & retail | 2022 |
| Cooper & Co Lettings Ltd | Real estate | 2025 |
| Cooper Connections Ltd | Construction | 2019 |
| Coopers Property Improvements Ltd | Construction | 2026 |
| Cope Electronics Limited | Manufacturing | 1984 |
| Cope Technology EOT Limited | Professional & scientific | 2023 |
| Cope Technology Limited | Manufacturing | 1998 |
| Core Services Cleaning Limited | Administrative & support | 2023 |
| Corngreaves Properties Ltd | Real estate | 2024 |
| Cornish Connections Pasty Limited | Wholesale & retail | 2000 |
| Cornish Restaurants Ltd | Hospitality | 2025 |
| Coseley Heating and Plumbing Services Ltd | Construction | 2019 |