| Centerline Builders Ltd | Construction | 2026 |
| Centivos Ltd | Other services | 2017 |
| Centra Energy Solutions Limited | Professional & scientific | 2026 |
| Central (L) Ltd | Construction | 2025 |
| Central 67 Mortgages Ltd | Professional & scientific | 2023 |
| Central 67 Properties Ltd | Real estate | 2019 |
| Central and Regional Construction Ltd | Administrative & support | 2018 |
| Central Asphalt Limited | Construction | 2019 |
| Central Drive 19 Ltd | Hospitality | 2022 |
| Central Electrical Armature Winding Co. Limited | Manufacturing | 1977 |
| Central Gardens Management Company Limited | Households | 2004 |
| Central GAS Heating & Plumbing Plus Ltd | Real estate | 2025 |
| Central Link Leeds 2 Limited Partnership | | 2010 |
| Central Liverpool PCN Limited | Health & social care | 2023 |
| Central Liverpool Properties Limited | Real estate | 2020 |
| Central Location Ltd | Households | 2023 |
| Central Property Management (Liverpool) Limited | Real estate | 2011 |
| Central Refinishers Ltd | Wholesale & retail | 2026 |
| Central Services Liverpool Limited | Water & waste | 2015 |
| Central Services Plus Ltd | Water & waste | 2025 |
| Central Station Hotel Liverpool Limited | Hospitality | 2017 |
| Central Valley CBD Ltd | Health & social care | 2020 |
| Centre 56 Limited | Health & social care | 1977 |
| Centre Channel Limited | Information & communication | 2023 |
| Centre for Construction Best Practice Limited | Professional & scientific | 2024 |
| Centre Island Albert Dock Limited | Hospitality | 2002 |
| Centre Island Birmingham Limited | Hospitality | 2005 |
| Centre Island Development Company (1997) Limited | Hospitality | 1997 |
| Centre Island Development Company Limited | Hospitality | 1992 |
| Centre Island Hotels Limited | Hospitality | 1998 |
| Centre Island Management Limited | Professional & scientific | 2003 |
| Centre Island Preston Limited | Hospitality | 1999 |
| Centre Island Ropewalks Limited | Hospitality | 1996 |
| Centre of Behavioural Equality Ltd. | Administrative & support | 2012 |
| Centreground Limited | Real estate | 1982 |
| Centreline Canteen Limited | Hospitality | 2025 |
| Centrix Commercials Limited | Professional & scientific | 2009 |
| Centro DEL Blanco Ltd. | Arts & recreation | 2020 |
| Centurion Catering Services Ltd | Hospitality | 2018 |
| Centurion Facades Limited | Manufacturing | 2015 |
| Centurion Roofline Windows & Doors Ltd | Construction | 2007 |
| Centurion-Care Limited | Health & social care | 2025 |
| Ceofireprotection Limited | Construction | 2025 |
| CEP Heating and Cooling Limited | Construction | 2024 |
| Ceramtek Ltd | Construction | 2009 |
| Cerberus Digital Limited | Information & communication | 2024 |
| Cerberus Entertainment Ltd | Wholesale & retail | 2004 |
| Cerberus Property Group Limited | Real estate | 2022 |
| Cerberus Security Solutions Limited | Administrative & support | 2025 |
| Cerebellum Sport Community Interest Company | Construction | 2025 |
| Ceres Street Recovery Storage and Car Hire Limited | Wholesale & retail | 2015 |
| Cerium Developments Ltd | Real estate | 2019 |
| Cerne Shop Limited | Wholesale & retail | 2026 |
| Cerno Health (UK) Ltd | Information & communication | 2013 |
| Cerno Imaging Limited | Professional & scientific | 2015 |
| Cerno Portal Limited | Professional & scientific | 2015 |
| Cerno Prime Ltd | Information & communication | 2026 |
| Cerno Systems Ltd | Professional & scientific | 2013 |
| Certified Holding Group Ltd | Wholesale & retail | 2025 |
| Certitrack Ltd | Information & communication | 2025 |
| Certrac Limited | Real estate | 1997 |
| Certus Analytics Ltd | Professional & scientific | 2015 |
| Certus Generation Limited | Financial services | 2019 |
| Certus Hub Limited | Financial services | 2021 |
| Certus Legal Limited | Financial services | 2019 |
| Cerulean Investments Ltd | Financial services | 2022 |
| Cerv Trans Ltd | Transport & logistics | 2018 |
| Cervus - Facilities Management Group Ltd | Administrative & support | 2023 |
| CES Construction Ltd | Construction | 2022 |
| CES Testing Limited | Wholesale & retail | 2025 |
| CET Recruitment Specialists Ltd | Administrative & support | 2025 |
| CEWLIK123 Ltd | Hospitality | 2025 |
| CEY Glow Logistics Ltd | Wholesale & retail | 2026 |
| Ceylon Distributors Ltd | Wholesale & retail | 2025 |
| Cezary Wolnowski Limited | Transport & logistics | 2013 |
| CF Property Consulting Limited | Professional & scientific | 2015 |
| CF Houses Ltd | Real estate | 2025 |
| CF Lets and Management Limited | Real estate | 2025 |
| CFA Cleaning Specialist Ltd | Administrative & support | 2019 |
| CFA Professional Services Limited | Administrative & support | 2013 |
| CFC Properties (NW) Ltd | Real estate | 2017 |
| CFD Suppliers Ltd | Wholesale & retail | 2024 |
| CFG Care Ltd | Health & social care | 2019 |
| CFG Manufacturing Limited | Manufacturing | 2025 |
| CFI Rendering UK Ltd | Construction | 2025 |
| CFJ Holdings Ltd | Financial services | 2017 |
| CFK Newsagents Ltd | Wholesale & retail | 2013 |
| CFM Care Limited | Health & social care | 2026 |
| CFR Nominees Limited | Information & communication | 2025 |
| CFS Legal Ltd | Administrative & support | 2025 |
| CG Elec (NW) Limited | Construction | 2025 |
| CG Mala Ltd | Hospitality | 2024 |
| CG New Builds Ltd | Construction | 2023 |
| CG Property 168 Ltd | Real estate | 2024 |
| CG Ryan Services Ltd | Professional & scientific | 2018 |
| CG Signature Kitchens & Bedrooms Limited | Construction | 2017 |
| CG47CARE Ltd | Health & social care | 2025 |
| CGA Development Ltd | Information & communication | 2025 |
| CGA Simulation Limited | Information & communication | 2011 |
| Cgchemx Ltd | Wholesale & retail | 2013 |