| CE Private Consulting Limited | Information & communication | 2024 |
| Celer Properties Limited | Real estate | 2023 |
| Cellar Door Assets Limited | Real estate | 2025 |
| Celsius Comfort & Control Ltd | Energy | 2022 |
| Celtoda Limited | Health & social care | 2020 |
| Celtrucks Ltd | Wholesale & retail | 2012 |
| Cema Healthcare Limited | Health & social care | 2025 |
| Centena Limited | Professional & scientific | 2014 |
| Central Business Hub Holdings Ltd | Construction | 2019 |
| Central Business Hub Limited | Real estate | 2017 |
| Central Investigation Bureau Ltd | Administrative & support | 2001 |
| Centuar Holdings Limited | Financial services | 2021 |
| Cerebrate IT Limited | Information & communication | 2021 |
| CF Scaffolding Ltd | Construction | 2026 |
| Cfgp Commodities Limited | Wholesale & retail | 2025 |
| CG Access Ltd | Administrative & support | 2023 |
| CGB Electrical Services Limited | Construction | 2010 |
| CGD Consulting Limited | Administrative & support | 2021 |
| Cgkw Limited | Professional & scientific | 2021 |
| CGS Management Limited | Other services | 2021 |
| Chad Richards Ltd | Construction | 2018 |
| Chakalov Ltd | Health & social care | 2012 |
| Chakrabarti Consulting Limited | Administrative & support | 2017 |
| Chalet Cosmique Limited | Hospitality | 2004 |
| Challenge Bootcamp Ltd | Other services | 2015 |
| Chalton Farms Limited | Agriculture & fishing | 1958 |
| Chalton Limited | Construction | 2021 |
| Chamberlain Edwards Painters Limited | Construction | 2016 |
| Chamberlain Edwards Sussex Ltd | Construction | 2018 |
| Chambers Air Conditioning Limited | Construction | 2023 |
| Chambers Business Solutions Limited | Professional & scientific | 2026 |
| Chameleon Connect Ltd | Professional & scientific | 2018 |
| Chandlers Ford Eastleigh- Solent Prom Dress Free Rentals C.I.C. | Other services | 2025 |
| Change My Details Limited | Administrative & support | 2026 |
| Channel One Media Ltd | Administrative & support | 2021 |
| Chant Ltd. | Wholesale & retail | 2022 |
| Chapman Joinery Ltd | Construction | 2022 |
| Chapman Willis Limited | Construction | 2019 |
| Chappell Medical Services Limited | Health & social care | 2019 |
| Chapplins Estate Agency (Cosham) Limited | Real estate | 2006 |
| Chapplins Lettings Limited | Real estate | 2012 |
| Chapplins Residential Lettings Limited | Real estate | 2014 |
| Charles Smith Design Ltd | Professional & scientific | 2025 |
| Charles Trott Roofing Limited | Construction | 2016 |
| Charles Wynford Developments Limited | Construction | 1997 |
| Charlesworth CAD Designs Limited | Professional & scientific | 2025 |
| Charlie’S Garden Services Limited | Administrative & support | 2025 |
| Charlotte Burgess 1:1 Diet Ltd | Health & social care | 2023 |
| Charlton & SON Southern Limited | Construction | 2019 |
| Charming Parties Ltd | Administrative & support | 2013 |
| Charmol Interiors Limited | Real estate | 2002 |
| Charmol Properties Ltd | Real estate | 2024 |
| Charnwood Homes (UK) Limited | Construction | 2024 |
| Chartergrove Freehold Co. Limited | Households | 1999 |
| Charthouse Studios Ltd | Information & communication | 2018 |
| Chartwellweb Limited | Information & communication | 2013 |
| Chazot Fretwell Properties Limited | Real estate | 2024 |
| Chazot Property Holdings Limited | Real estate | 2021 |
| Checkpoint (EU) Limited | Professional & scientific | 2006 |
| Cheeky Monkeez Limited | Other services | 2008 |
| Cheeseburger Island Limited | Professional & scientific | 2026 |
| Cheesecakes by Tash Ltd | Manufacturing | 2025 |
| Chelcasselley Limited | Extraterritorial | 2003 |
| Chenin Holdings Limited | Financial services | 2020 |
| Chennamkulath Ltd | Real estate | 2026 |
| Cherry Forge Ltd | Manufacturing | 2024 |
| Cherry Tree Apartments (Waterlooville) Limited | Households | 2007 |
| Cherrytech Holdings Limited | Financial services | 2025 |
| Cherrytech Limited | Manufacturing | 2001 |
| Chescale Limited | Professional & scientific | 2025 |
| Chevron Group Ltd | Financial services | 2022 |
| Chewy Louis Ltd | Wholesale & retail | 2025 |
| Chichester Anaesthetists LLP | | 2008 |
| Chichester Foot & Body Massage Limited | Health & social care | 2023 |
| Child First Solutions Limited | Health & social care | 2025 |
| Chilgrove (Petersfield) Management Limited | Households | 2007 |
| Chillisolutions Limited | Information & communication | 2008 |
| Chimera-Labs Limited | Information & communication | 2025 |
| China SUNNY3 Consulting UK Branch Ltd | Professional & scientific | 2014 |
| Chinn UP Limited | Wholesale & retail | 2022 |
| Chiocares Limited | Health & social care | 2024 |
| Chirp Investments Ltd | Real estate | 2021 |
| Chivers Electrical Installations Ltd | Construction | 2023 |
| Chloe’S Head Spa Ltd | Other services | 2024 |
| Choice Family Mediation Ltd | Other services | 2015 |
| Chook Games Limited | Information & communication | 2024 |
| Choose Flair Limited | Wholesale & retail | 2025 |
| Choppertown Limited | Professional & scientific | 2015 |
| Chopra Property Group Ltd | Real estate | 2016 |
| Chris Allen Financial Ltd | Financial services | 2026 |
| Chris Ashton Ltd | Transport & logistics | 2026 |
| Chris Carey Commercial Enterprises Limited | Extraterritorial | 2017 |
| Chris Durbin Author Limited | Arts & recreation | 2018 |
| Chris Flint Associates Limited | Professional & scientific | 2004 |
| Chris Loader of Hambledon Limited | Construction | 2006 |
| Chrisalex Court Residents Company Ltd | Households | 1995 |
| Christchurch Residential Ltd | Construction | 2022 |
| Church View Emsworth Management Company Limited | Households | 2023 |
| Church White Windows Limited | Construction | 2017 |
| Churchill Concrete Products Limited | Real estate | 1956 |