| CBW Comms Ltd | Information & communication | 2021 |
| CC Bakery Limited | Hospitality | 2025 |
| CC Care & Support Ltd | Health & social care | 2019 |
| CC Designs & Gifts Limited | Wholesale & retail | 2021 |
| CC Pubs Limited | Hospitality | 2025 |
| CC Shelton Limited | Hospitality | 2022 |
| CC ST6 Limited | Hospitality | 2026 |
| Ccbr Ltd | Wholesale & retail | 2023 |
| CCE Group Ltd | Construction | 2022 |
| CCS Corporation Ltd | Administrative & support | 2025 |
| CCS Midlands Ltd | Construction | 2009 |
| CD Investors Limited | Transport & logistics | 2014 |
| CDR Property Group Limited | Financial services | 2022 |
| CDS Controls Limited | Manufacturing | 2019 |
| CDT Security Fencing Limited | Construction | 2015 |
| CEA Healthcare Recruitment Ltd | Health & social care | 2021 |
| Ceba Transport Group Limited | Financial services | 2015 |
| Cecil BIA & Social Work Services Ltd | Health & social care | 2024 |
| Cedar Shepherds Ltd | Real estate | 2024 |
| Cedar Tree Business Solutions Ltd | Professional & scientific | 2018 |
| Celary Spedition Ltd | Other services | 2018 |
| Celebrity Hair UK Ltd | Wholesale & retail | 2019 |
| Cellar Marine Aquatics Ltd | Wholesale & retail | 2019 |
| CEN Resources Ltd | Administrative & support | 2020 |
| Central Air Conditioning Services Ltd | Construction | 2021 |
| Central Civil Supplies Limited | Wholesale & retail | 2000 |
| Central Community Events CIC | Hospitality | 2023 |
| Central Drone and Photograpy Services Ltd | Professional & scientific | 2023 |
| Central Food Service Ltd | Wholesale & retail | 1993 |
| Central Landscapes & Driveways Limited | Administrative & support | 2011 |
| Central Landscapes & Groundworks Limited | Administrative & support | 2023 |
| Centrale DAQ & Control Systems Ltd | Professional & scientific | 2023 |
| Centre Space Arts CIC | Arts & recreation | 2020 |
| Centrewire Limited | Manufacturing | 1980 |
| Centric Solutions (UK) Limited | Information & communication | 1997 |
| Centryx Automations Ltd. | Professional & scientific | 2024 |
| Century Oils International Limited | Professional & scientific | 1914 |
| Cephas Property Investments Ltd | Real estate | 2024 |
| Ceram Supplies Ltd | Manufacturing | 2015 |
| Ceramic Decorating Technology Ltd | Manufacturing | 2021 |
| Ceramic Support Services Ltd | Professional & scientific | 2022 |
| Ceramics International Limited | Wholesale & retail | 2007 |
| Cerialis Ltd | Professional & scientific | 2024 |
| CES Home and Garden Ltd | Wholesale & retail | 2024 |
| Cest Holdings Ltd | Real estate | 2021 |
| Cesti Ltd | Wholesale & retail | 2023 |
| Ceylone Sanda Entertainments Ltd | Manufacturing | 2025 |
| CFD Interiors Stoke Ltd | Wholesale & retail | 2025 |
| CFD Stoke Ltd | Wholesale & retail | 2022 |
| CFM Nationwide Holdings Ltd | Professional & scientific | 2016 |
| Cfmc Ltd | Professional & scientific | 2021 |
| CG Automated Gates Limited | Manufacturing | 2014 |
| CG Joinery (Midlands) Limited | Manufacturing | 2007 |
| Cgdg Limited | Wholesale & retail | 2022 |
| CGG Imaging Ltd | Professional & scientific | 2025 |
| CGH49 Ltd | Administrative & support | 2023 |
| CGO Transport Limited | Transport & logistics | 2015 |
| Cgrc Logistics Ltd | Construction | 2017 |
| CH Barbers Ltd | Other services | 2015 |
| CH3 Limited | Other services | 2023 |
| Chadburn Estates Ltd | Real estate | 2023 |
| Chadha Hospitality Limited | Hospitality | 2017 |
| Chadwick-Meakin Limited | Wholesale & retail | 1988 |
| Chaffinch Digital Solutions Ltd | Information & communication | 2020 |
| Chaffinch Green Limited | Administrative & support | 2003 |
| Chaffinch Hire Limited | Transport & logistics | 2012 |
| Chakswari Travel Ltd | Transport & logistics | 2024 |
| Challenge Engineering Limited | Manufacturing | 2013 |
| Challenger Academy Limited | Health & social care | 2023 |
| Challinor Developments Limited | Construction | 1989 |
| Challinor Ecig Ltd | Wholesale & retail | 2019 |
| Chambers Estates Limited | Real estate | 1973 |
| Champion Care and Consultancy Specialists Limited | Other services | 2013 |
| Champsons Ltd | Construction | 2021 |
| Chandler Watson Consultancy Ltd | Agriculture & fishing | 2010 |
| Chandlers Lime & Fertiliser Ltd | Agriculture & fishing | 2012 |
| Chandra and Jaiswal Limited | Health & social care | 2020 |
| Change Your Thinking Limited | Extraterritorial | 2024 |
| Changes Asian Kitchen Limited | Hospitality | 2019 |
| Chantilly Blinds Limited | Wholesale & retail | 2009 |
| Chapel Cottage Holdings Ltd | Households | 2025 |
| Chapel Garage S-O-T Ltd | Wholesale & retail | 2024 |
| Chapman Estates Limited | Real estate | 1999 |
| Charden Enterprises Limited | Professional & scientific | 2006 |
| Chargink Ltd | Information & communication | 2023 |
| Charhdi - Kala Ltd | Transport & logistics | 2026 |
| Charles Developments (Cheshire) Limited | Administrative & support | 2026 |
| Charles Shaw Developments Limited | Construction | 2022 |
| Charles Wainwright Holdings Limited | Financial services | 2024 |
| Charles Wainwright Properties Limited | Real estate | 2021 |
| Charlie Browns Hair Studio Ltd | Other services | 2011 |
| Charlie Crow Limited | Extraterritorial | 2000 |
| Charlie's Journey Limited | Professional & scientific | 2024 |
| Charltons Solicitors Limited | Professional & scientific | 2018 |
| Charlwood Holdings Limited | Financial services | 2019 |
| Charndene Limited | Other services | 2003 |
| Charsay Delivery Ltd | Transport & logistics | 2025 |
| Chas Holdings Limited | Administrative & support | 2015 |
| Chase Engines Ltd | Wholesale & retail | 2011 |
| Chase Training Limited | Education | 2021 |