| CEE N CEE Inns Ltd | Hospitality | 2024 |
| CEI 8 PR Holdco Limited | Financial services | 2020 |
| CEI 8 Renewable Limited | Financial services | 2022 |
| CEI 8 UK Holdings Limited | Financial services | 2019 |
| CEI 8 UK Ltd | Financial services | 2019 |
| CEI 9 UK Limited | Financial services | 2020 |
| CEI Clwyd Limited | Financial services | 2022 |
| CEI Keane JV Limited | Financial services | 2019 |
| CEI Keane Limited | Financial services | 2020 |
| CEI Saddle JV Limited | Financial services | 2022 |
| CEI Saddle Limited | Financial services | 2022 |
| CEI WPP Holdings Limited | Financial services | 2023 |
| CEI WPP Limited | Financial services | 2023 |
| Ceiba Floristry Company Ltd | Manufacturing | 2023 |
| Celestialarc Properties Ltd | Real estate | 2023 |
| Celestine Project Services Limited | Administrative & support | 2015 |
| Cell Tech (Holdings) Limited | Real estate | 2013 |
| Cell Tech Innovation Ltd | Wholesale & retail | 2003 |
| Cell Tech Trading Limited | Wholesale & retail | 2015 |
| Cellular Trade Accessories Limited | Information & communication | 2002 |
| Cemby Limited Limited | Real estate | 2024 |
| Cemby Ltd | Real estate | 2024 |
| Ceng Engineering Ltd | Professional & scientific | 2020 |
| Central MOT Centre Limited | Wholesale & retail | 2021 |
| Central Property Group Limited | Real estate | 2020 |
| Centre Court Padel Ltd | Arts & recreation | 2025 |
| Centre for Energy Equality Ltd | Professional & scientific | 2021 |
| Centre for Good Relations Community Interest Company | Professional & scientific | 2009 |
| Centre for Technology Limited | | 1986 |
| Centre Park Resources Limited | Administrative & support | 2007 |
| Centric Energy Installations Ltd | Construction | 2024 |
| Centric Energy Solutions Ltd | Wholesale & retail | 2017 |
| Centurion Park (Thornton Cleveleys) Management Company Limited | Households | 2025 |
| Century SIM Ltd | Arts & recreation | 2018 |
| Centworks Company Ltd | Construction | 2014 |
| CEO Live Ltd | Manufacturing | 2025 |
| Cerberus Nuclear Limited | Professional & scientific | 2016 |
| Cerebro Wallgate Ltd | Real estate | 2023 |
| Cerelinko Ltd | Professional & scientific | 2025 |
| Cerian Jackson Limited | Professional & scientific | 2022 |
| Cersei Talent Ltd | Administrative & support | 2024 |
| Certero Holdings Limited | Information & communication | 2015 |
| Certero Limited | Information & communication | 2007 |
| Certero Topco Limited | Information & communication | 2025 |
| Certified Electrical North West Ltd | Construction | 2025 |
| Certm Services Limited | Other services | 2017 |
| Cerys LEE Cleaning Services Ltd | Administrative & support | 2023 |
| CES Estimating Services Limited | Professional & scientific | 2013 |
| CES Property Management Limited | Real estate | 2025 |
| Cesco Ltd | Professional & scientific | 2021 |
| Ceseconsult Ltd | Real estate | 2026 |
| Cestria Advisory Limited | Professional & scientific | 2017 |
| CF Delivery Ltd | Hospitality | 2025 |
| CF Warrington Ltd | Arts & recreation | 2021 |
| Cfim Limited | Other services | 2016 |
| CFT Property Matters Limited | Other services | 2017 |
| CG Biosafety Consultant Ltd | Professional & scientific | 2022 |
| CG Development Consultancy Ltd | Information & communication | 2022 |
| CG Patio Cleaning and Wasp Control Services Limited | Administrative & support | 2004 |
| CG Property Group Ltd | Real estate | 2019 |
| CGA and Associates Limited | Wholesale & retail | 2012 |
| CGC Telecom Ltd | Information & communication | 2025 |
| CGK Holdings Ltd | Financial services | 2026 |
| CGR Consulting Ltd | Professional & scientific | 2022 |
| Cgs.Militant-Cleaning Limited | Administrative & support | 2025 |
| CGW Developments Ltd | Construction | 2024 |
| CGY Consulting Limited | Information & communication | 2017 |
| CH Professional Services Limited | Other services | 2018 |
| CH3 Delta Limited | Professional & scientific | 2017 |
| CHA Ching Gaming Limited | Arts & recreation | 2025 |
| Chad Plant & Haulage Ltd | Wholesale & retail | 2005 |
| Chadach Urology Limited | Health & social care | 2016 |
| Chaigeley Educational Foundation | Education | 1997 |
| Chainhouse Developments Limited | Construction | 2022 |
| Chakos Barber Ltd | Other services | 2023 |
| Chalkline Engineering Limited | Administrative & support | 2023 |
| Chalon Components Limited | Manufacturing | 2000 |
| Chalon Controls Limited | Manufacturing | 1988 |
| Chalon Group (Trustee) Company Limited | Administrative & support | 2024 |
| Chamber Events Ltd | Arts & recreation | 2025 |
| Chambers Transition Consultancy Ltd | Information & communication | 2019 |
| Chameleo Ltd | Information & communication | 2024 |
| Champdog Films Limited | Information & communication | 2017 |
| Champney Project Management Limited | Professional & scientific | 2016 |
| Chancel Gardens (Management Company) Limited | Households | 2026 |
| Chandler & Lowe Developments Limited | Construction | 2021 |
| Chandler's Way Stone (Management Company) Limited | Real estate | 2012 |
| Chandran Care Limited | Health & social care | 2018 |
| Chang NOI (Cheshire) Limited | Hospitality | 2024 |
| Chang NOI Limited | Hospitality | 2019 |
| Change Craft Consultancy Ltd | Professional & scientific | 2025 |
| Change Unlocked Ltd | Professional & scientific | 2026 |
| Changing Minds Ltd | Health & social care | 2007 |
| Changing Minds Wellbeing Ltd | Health & social care | 2018 |
| Channelise Ltd | Information & communication | 2026 |
| Channings Consulting Limited | Professional & scientific | 2025 |
| Chapel House Sankey Ltd | Hospitality | 2026 |
| Chapelford Village Nursery & Link Club Limited | Education | 2015 |
| Chapleford Mortgages and Protection Limited | Financial services | 2023 |
| Chapman Design Services Limited | | 1980 |