| CBS Corporate Services Ltd | Extraterritorial | 2018 |
| CBS Trade Corporation Limited | Wholesale & retail | 2006 |
| CBT & Therapy Hub Ltd | Health & social care | 2018 |
| CCE Holdings Limited | Financial services | 2015 |
| CCN Estates Ltd | Construction | 2025 |
| CCR Homes Limited | Real estate | 2025 |
| CD3D Limited | Administrative & support | 2014 |
| CDJ Planning Limited | Information & communication | 2017 |
| CDM Associates Ltd | Public administration | 2015 |
| Cdml Properties (Midlands) Ltd | Real estate | 2024 |
| CDS Ground Services Ltd | Agriculture & fishing | 2023 |
| Cecolyse Limited | Professional & scientific | 2021 |
| CED Plumbing & Heating Limited | Energy | 2017 |
| Cedar Blue Limited | Real estate | 2025 |
| Cedar Lodge SPD Ltd | Construction | 2018 |
| Cedar Tree Learning Limited | Education | 1996 |
| Cedars (a) Limited | Households | 2004 |
| Cedars (B) Limited | Households | 2006 |
| Cedarwood (Four Oaks) Management Company Limited | Households | 2002 |
| Celebration Wedding Cars Limited | Administrative & support | 2008 |
| Celmeng Group Ltd | Construction | 2023 |
| Celsius Construction Limited | | 1985 |
| Cemada Lettings Ltd | Real estate | 2025 |
| Cembre Ltd. | Manufacturing | 1986 |
| Cemgate Midlands Limited | Manufacturing | 2019 |
| Census Wealth Management Limited | Financial services | 2010 |
| Centrad Holdings Limited | Financial services | 2016 |
| Centrad Limited | Financial services | 1999 |
| Central Air-Conditioning & Refrigeration Limited | Construction | 2002 |
| Central Eyelets and Pressings Ltd. | Manufacturing | 2009 |
| Central Financial Services (UK) Limited | Financial services | 2013 |
| Central Retail Stores Ltd | Wholesale & retail | 2015 |
| Central Therapy Service Ltd | Health & social care | 2026 |
| Centralis Building Solutions Ltd | Professional & scientific | 2015 |
| Centro Waste Limited | Water & waste | 2019 |
| Centrotherm Insulations Ltd | Construction | 2007 |
| Centroz Pizza Limited | Hospitality | 2024 |
| Century Park Limited | Construction | 2002 |
| Ceol Creatives Ltd | Information & communication | 2023 |
| Cepatubersum Ltd | Administrative & support | 2020 |
| Cerda Planning Ltd | Professional & scientific | 2008 |
| Ceridwen Raynor Ltd | Professional & scientific | 2018 |
| CF B76 Limited | Arts & recreation | 2014 |
| CF Tech Ltd | Manufacturing | 2025 |
| CG Property Maintenance Limited | Construction | 2025 |
| CG Resourcing Ltd | Administrative & support | 2015 |
| CG Transfers Ltd | Transport & logistics | 2021 |
| CG3 Design Limited | Professional & scientific | 2019 |
| CH Properties (Midlands) Limited | Real estate | 2018 |
| CH Property Group Ltd | Real estate | 2023 |
| Chackungal and Co Ltd | Health & social care | 2023 |
| Chad & Co. Ltd | Construction | 2018 |
| Chadwick Brothers Limited | Professional & scientific | 2018 |
| Chagger Transport Limited | Transport & logistics | 2006 |
| Chain of Innovation Limited | Other services | 2017 |
| Chak DE Limited | Health & social care | 2018 |
| Chalfont Drive Residents Management Company Limited | Households | 2016 |
| Chameleon Tech Jewellery Limited | Manufacturing | 2022 |
| Chamsons Limited | Real estate | 2019 |
| Chandler Computers Business Services Limited | Information & communication | 2018 |
| Chandler Computers Limited | Wholesale & retail | 2015 |
| Chandler Equity Limited | Mining & quarrying | 2020 |
| Chandler Homes Ltd | Real estate | 2025 |
| Chandlers Brewery Limited | Hospitality | 1990 |
| Chaneyc.Ai Ltd | Information & communication | 2025 |
| Chanthall Ltd | Other services | 2010 |
| Chaos Over Consulting Limited | Information & communication | 2026 |
| Chapman Automation Ltd | Wholesale & retail | 2022 |
| Chapman Engraving Limited | Other services | 2023 |
| Chapter 56 Bar Ltd | Wholesale & retail | 2025 |
| Charcoal Rotisserie Company Ltd | Hospitality | 2025 |
| Charlbury Limited | Administrative & support | 2018 |
| Charlene DID That Aesthetics Ltd | Other services | 2026 |
| Charles Edward Investments Limited | Real estate | 2025 |
| Charlesworth & SON Limited | Manufacturing | 1952 |
| Charlesworth Mouldings Limited | Manufacturing | 2008 |
| Charlotte Conway Design Limited | Professional & scientific | 2014 |
| Charlotte Incorporated Ltd | Manufacturing | 2024 |
| Charmilia Limited | Wholesale & retail | 2024 |
| Charter Interiors Limited | Construction | 1980 |
| Charter Point (Ashby) Management Company Limited | Real estate | 2008 |
| Chartwell Business Development Ltd | Extraterritorial | 2022 |
| Chase Eyewear Ltd | Health & social care | 2019 |
| Chase House Education Services Limited | Professional & scientific | 2004 |
| Chasmware Innovations Ltd | Professional & scientific | 2025 |
| Chatha Properties (Midlands) Limited | Real estate | 2010 |
| CHD Properties Ltd | Administrative & support | 2017 |
| Checkmart Limited | Wholesale & retail | 2021 |
| CHEF197A Ltd | Hospitality | 2019 |
| Cheff Klodi Limited | Hospitality | 2023 |
| Chefs to Go Ltd | Hospitality | 2005 |
| Chellserv Limited | Construction | 2004 |
| Cheltenham Design and Development Limited | Real estate | 2003 |
| Chem Luxe Consulting Ltd | Professional & scientific | 2024 |
| Chemplus Education Ltd | Education | 2026 |
| Chenna Limited | Health & social care | 2016 |
| Chenna Property Limited | Real estate | 2025 |
| Cherish Home Care Ltd | Health & social care | 2003 |
| Cherish-Uk Ultrasound Scans Limited | Health & social care | 2014 |
| Cheshire Land Limited | Construction | 2017 |