| BV Storage 1 Ltd | Wholesale & retail | 2013 |
| Bvre Limited | Administrative & support | 2025 |
| BVS Courier (Midlands) Ltd | Transport & logistics | 2024 |
| BWP Creative Limited | Information & communication | 2019 |
| BXB Trading Limited | Wholesale & retail | 2020 |
| BY Demi Education Ltd | Education | 2026 |
| BY the ML Aesthetics Limited | Other services | 2026 |
| Bysylvia Marketing Ltd | Professional & scientific | 2026 |
| Byte World Ltd | Information & communication | 2018 |
| Bytiannaa Ltd | Other services | 2025 |
| Bytronic Educational Technology Limited | Manufacturing | 2023 |
| Bytronic Limited | Manufacturing | 2023 |
| Bywater Group Holdings Limited | Financial services | 2024 |
| C & a News Pelsall Limited | Wholesale & retail | 2012 |
| C & a Webb Limited | Extraterritorial | 2013 |
| C & C Carpets Limited | Wholesale & retail | 1998 |
| C & D Transporting Limited | Transport & logistics | 2023 |
| C & H Fast Food Limited | Hospitality | 2014 |
| C & M Accountancy Limited | Professional & scientific | 2002 |
| C & P Power Limited | Construction | 2025 |
| C & T Bathrooms Limited | Other services | 2023 |
| C & T Kitchens Limited | Other services | 2023 |
| C a Roofing Limited | Construction | 2015 |
| C E Scott's Haulage Ltd | Transport & logistics | 2026 |
| C K Roofing Limited | Construction | 2002 |
| C Lane Optical Services Limited | Health & social care | 2017 |
| C R Aesthetic Treatments Ltd | Other services | 2023 |
| C R Duddy Consulting Ltd | Professional & scientific | 2024 |
| C Safety Solutions Limited | Public administration | 2022 |
| C&B Facade Design Limited | Construction | 2014 |
| C&C Company Lets Ltd | Real estate | 2023 |
| C&F Property Group Ltd | Real estate | 2025 |
| C&G Consultancy Services Ltd | Other services | 2019 |
| C&H Scaffolding Access Ltd | Construction | 2026 |
| C&M Ceilings and Partitions Limited | Construction | 2015 |
| C&R Haulage Ltd | Transport & logistics | 2024 |
| C&S Pipelines Limited | Other services | 2020 |
| C&S Skip Hire Limited | Water & waste | 2011 |
| C&U Limited | Transport & logistics | 2023 |
| C&V Orchard Residential Limited | Administrative & support | 2002 |
| C-Mos Technology Limited | Information & communication | 2007 |
| C-Thru (Shropshire) Limited | Administrative & support | 2009 |
| C. Gandy Building & Maintenance Ltd | Construction | 2019 |
| C. Lloyd Transport Limited | Transport & logistics | 2024 |
| C. S. T. Pharma Limited | Wholesale & retail | 2001 |
| C.A.S Mechanical Services Ltd | Administrative & support | 2017 |
| C.D. Services (Midlands) Limited | Manufacturing | 2006 |
| C.Hayer Builder Ltd | Construction | 2022 |
| C.J. Machine Services Limited | Manufacturing | 1977 |
| C.J.C. Development Company Limited | Real estate | 1970 |
| C.K Powder Coatings Limited | Manufacturing | 2013 |
| C.S.T. Pharma Group Holdings Limited | Financial services | 2018 |
| C.T. Community (Holdings) Limited | Financial services | 2004 |
| C2 Residential Bungalows Limited | Real estate | 2025 |
| C2 Residential Limited | Real estate | 2003 |
| C2C Transport Management Ltd | Transport & logistics | 2021 |
| C3 Capital Limited | Financial services | 2018 |
| Cabin Express Ltd | Wholesale & retail | 2023 |
| Cabin Homes Ltd | Real estate | 2022 |
| Cabo Agro Transportation UK Limited | Transport & logistics | 2019 |
| CAC House of Encounter | Other services | 2025 |
| Cadar Trans Ltd | Transport & logistics | 2016 |
| Cadmus Inclusive Ltd | Education | 2026 |
| Cadmus Services Ltd | Education | 2020 |
| Cafe Aromatico Ltd | Hospitality | 2019 |
| Cafe Fork Ltd | Hospitality | 2024 |
| Cafe Kashmir Limited | Hospitality | 2025 |
| Cafe Rosewood Limited | Hospitality | 2026 |
| Cafe Square 1 Ltd | Hospitality | 2024 |
| Cafe Zaman Ltd | Hospitality | 2025 |
| CAFE180 Ltd | Wholesale & retail | 2026 |
| Caffe 41 Ltd | Hospitality | 2025 |
| Cait Inns Limited | Hospitality | 2023 |
| Caldarar Ltd | Construction | 2025 |
| Calder Controls Limited | Manufacturing | 2011 |
| Calderfields Golf and Country Club Limited | Hospitality | 2008 |
| Calderfields Golf Club Limited | Wholesale & retail | 2014 |
| Calderfields Property Co. Ltd | Real estate | 2016 |
| Caldmore Construction Limited | Construction | 2011 |
| Caldmore Fish Bar Limited | Hospitality | 2023 |
| Caldmore Mobiles Ltd | Wholesale & retail | 2021 |
| Caldmore Motors Ltd | Extraterritorial | 2015 |
| Caldmore Timber 09 Limited | Wholesale & retail | 2009 |
| Caldmore Village Festival | Other services | 2011 |
| Caliberstays Ltd | Hospitality | 2020 |
| Calite Limited | Other services | 2015 |
| Call Constructions Ltd | Construction | 2022 |
| Callaghan Tailor Limited | Wholesale & retail | 1977 |
| Calliper Technologies Limited | Information & communication | 2022 |
| Calltakers Ltd | Information & communication | 2019 |
| CAM Commercial Consulting Limited | Professional & scientific | 2019 |
| Cambrian Mines Trust | Education | 2012 |
| Camden Village II Limited | Construction | 2008 |
| Campbell's Administration Limited | Public administration | 2020 |
| Campion Engineering Services Limited | Wholesale & retail | 1996 |
| Canaan Automated Services Limited | Professional & scientific | 2022 |
| Canal Transport Services Limited | Transport & logistics | 1998 |
| Canberra Clinical Solutions Ltd | Health & social care | 2025 |
| Candlin & Co Ltd | Real estate | 2017 |
| Candour Construction Ltd | Construction | 2024 |