| Chambers Properties London Ltd | Households | 2024 |
| Champion Football Academy Ltd | Education | 2018 |
| Champion Leisure (Dorset) Limited | Hospitality | 2020 |
| Champion Projects (Poole) Ltd | Construction | 2015 |
| Champion Skills Schools Limited | Arts & recreation | 2017 |
| Champs Traditional PIE and Mash Ltd | Hospitality | 2024 |
| Change of Clothes Ltd | Information & communication | 2023 |
| Change Online Ltd | Professional & scientific | 2019 |
| Channel Surveys Ltd | Professional & scientific | 2014 |
| Chansuma Holdings Limited | Professional & scientific | 2018 |
| Chantelle Developments Limited | Real estate | 2003 |
| Chapel Street (ELY) Management Limited | Real estate | 1999 |
| Chapel Studios (Christchurch) Ltd | Real estate | 2024 |
| Chapelgate Holiday Lets Limited | Real estate | 2016 |
| Chapelgate Investments Ltd | Other services | 2013 |
| Chapman IT Limited | Information & communication | 2006 |
| Chapmore Development Services Limited | Real estate | 1987 |
| Chappell Home Improvements Ltd | Construction | 2018 |
| Charaig Ltd | Wholesale & retail | 2021 |
| Chargekind Ltd | Administrative & support | 2025 |
| Charglen Facilities Limited | Transport & logistics | 2019 |
| Charicca Holdings Ltd | Construction | 2021 |
| Charles Anthony Transport Ltd | Transport & logistics | 2025 |
| Charles Blakeway Limited | Professional & scientific | 2015 |
| Charles Trent Holdings Limited | Financial services | 2019 |
| Charles Trent Limited | Wholesale & retail | 2023 |
| Charles Trent Property Limited | Real estate | 2019 |
| Charlew Developments Limited | Construction | 2009 |
| Charlie & Co Pet Services Ltd | Other services | 2024 |
| Charlie Deliveries UK Ltd | Transport & logistics | 2026 |
| Charlie Fountain Real Estate Ltd | Real estate | 2023 |
| Charlie's Chicken BH18 Ltd | Hospitality | 2025 |
| Charlotte Court Management (Poole) Limited | Administrative & support | 2005 |
| Charlotte Pattinson Consulting Ltd | Professional & scientific | 2025 |
| Charmentra Ltd | Health & social care | 2024 |
| Charmers Properties & Investments Ltd | Information & communication | 2018 |
| Charminster Chiropractic Clinic Ltd | Health & social care | 2019 |
| Charminster Farm (Phase 3) Management Limited | Households | 2022 |
| Charminster Farm (Phase 4) Management Limited | Households | 2025 |
| Charms & Tings Limited | Manufacturing | 2020 |
| Charnwood (Freehold) Limited | Households | 2007 |
| Charris Court Ltd | Construction | 2018 |
| Charter Court Management Company Limited | Households | 2000 |
| Charthouse Data Management Limited | Information & communication | 1998 |
| Chas. Robinson Ltd | Professional & scientific | 2007 |
| Chase Virtual Solutions Ltd | Administrative & support | 2021 |
| Chasing Lobsters Limited | Health & social care | 2021 |
| Chatgpt Trainings Ltd | Information & communication | 2023 |
| Chatmakky Ltd | Wholesale & retail | 2025 |
| Chattkara Limited | Hospitality | 2024 |
| Chauffeur First Limited | Transport & logistics | 2020 |
| Cheat Sweets Ltd | Manufacturing | 2026 |
| Check Electrics Ltd | Construction | 2017 |
| Checkerr Ltd | Information & communication | 2015 |
| Cheeky Trendy Limited | Wholesale & retail | 2019 |
| Cheekyboo Ltd | Other services | 2013 |
| Cheesey Does IT Limited | Hospitality | 2020 |
| Chequers Place Limited | Households | 2017 |
| Cherry Home Improvements Ltd | Construction | 2016 |
| Cherry Orchard Estates Limited | Real estate | 2012 |
| Cherry Tree Grove (West Parley) Management Company Limited | Households | 2015 |
| Chester Land and Development Limited | Real estate | 2022 |
| Chester Pearce Associates UK Limited | Other services | 2011 |
| Chester Pearce Funeral Service Limited | Other services | 2013 |
| Chester Williams Ltd | Professional & scientific | 2019 |
| Chestnut Rise Management Company Limited | Real estate | 1993 |
| Chetville Securities Limited | Real estate | 1955 |
| CHG Developments (Southampton) Limited | Construction | 2011 |
| CHG Developments Limited | Professional & scientific | 1994 |
| CHG Property Development Ltd | Extraterritorial | 2014 |
| CHI3 Ltd | Financial services | 2023 |
| Chic Expert Ltd | Extraterritorial | 2023 |
| Chic Soul Limited | Wholesale & retail | 2025 |
| Chicken Gear Limited | Wholesale & retail | 2010 |
| Child Evangelism Fellowship of Britain | Other services | 1956 |
| Child Trophies Limited | Manufacturing | 1983 |
| Children of Uganda (UK) Limited | Health & social care | 2008 |
| Chiltern Properties Limited | Real estate | 2001 |
| China Fusion Original Limited | Wholesale & retail | 2016 |
| China Infrastructure Ltd | Professional & scientific | 2003 |
| Chinastack Catering Equipment Limited | Wholesale & retail | 1999 |
| Chine Developments Limited | Construction | 2002 |
| Chine Reach Freehold Limited | Households | 2004 |
| Chine Studios Ltd | Information & communication | 2024 |
| Chine Walk Limited | Administrative & support | 2024 |
| Chines Projects Limited | Professional & scientific | 2023 |
| Chinnydipper Ltd | Wholesale & retail | 2014 |
| Chippee Ki-Yay Limited | Extraterritorial | 2025 |
| Chipperfield Candy Machines Limited | Wholesale & retail | 1999 |
| Chipperfield's Catering Co Limited | Hospitality | 2022 |
| Chiyoda Enterprise Company Limited | Wholesale & retail | 2025 |
| CHL Property Investments Limited | Real estate | 2014 |
| Chloe Eves Voice Acting Ltd | Professional & scientific | 2020 |
| Choices PVT Ltd | Wholesale & retail | 2024 |
| Cholesterica Ltd | Manufacturing | 2020 |
| Choo Capital Holdings Ltd | Real estate | 2015 |
| Choose Your Coffee Limited | Manufacturing | 2025 |
| Chop WOK Ltd | Hospitality | 2023 |
| Chori Limited | Hospitality | 2024 |
| Chorus Support Limited | Administrative & support | 2020 |