| Charly Akaffou Limited | Financial services | 2016 |
| Charmic Savasol Ltd | Information & communication | 2026 |
| Charmwood Risk Management Limited | Professional & scientific | 2016 |
| Chartbeech Ltd | Health & social care | 2002 |
| Charter & Law Limited | Professional & scientific | 2007 |
| Charter-Kontron Limited | Health & social care | 1999 |
| Chartered Accountants Compensation Scheme Limited | Professional & scientific | 1989 |
| Chartered House Limited | Real estate | 2018 |
| Chartergate Audit Services Ltd | Professional & scientific | 2022 |
| Chartergate Legal Services Ltd | Professional & scientific | 2012 |
| Charteris Consulting Ltd | Professional & scientific | 2015 |
| Chartwise Limited | Other services | 1984 |
| Chase Farm Barns Management Company Ltd | Other services | 2001 |
| Chashni Realtors Ltd | Real estate | 2026 |
| Chasinggrails Ltd | Wholesale & retail | 2026 |
| Chassis Autonomy Limited | Professional & scientific | 2022 |
| CHAT4BIZ Ltd | Information & communication | 2026 |
| Chatek Ltd | Real estate | 2020 |
| Chatholde Ltd | Real estate | 2024 |
| Chaty-Bot Ltd | Other services | 2024 |
| CHD Consulting Ltd | Professional & scientific | 2021 |
| CHE Consulting Ltd | Professional & scientific | 2026 |
| CHE Lettings Limited | Real estate | 2015 |
| Cheatcode Podcast LLP | | 2025 |
| Checkbox Compliance Ltd | Information & communication | 2026 |
| Checklist International Ltd | Information & communication | 2026 |
| Cheebay Ltd | Administrative & support | 2025 |
| Cheeky Chimps Castles Ltd | Administrative & support | 2018 |
| Cheenu Holdings Limited | Real estate | 2018 |
| Cheesecaketogo Ltd | Hospitality | 2025 |
| Cheetah Taxis Ltd | Transport & logistics | 2025 |
| Chef Simon Ltd | Hospitality | 2022 |
| Chefji Ltd | Hospitality | 2023 |
| CHEFONSITE1 Ltd | Hospitality | 2024 |
| Chefsoso Limited | Hospitality | 2020 |
| Chek Chek Eatery Ltd | Hospitality | 2024 |
| Chekin Ltd | Information & communication | 2018 |
| Cheks Consulting Ltd | Professional & scientific | 2024 |
| Chelsea Beauty Group Limited | Wholesale & retail | 2025 |
| Chelsea Benefits Ltd | Professional & scientific | 2026 |
| Chelsini Property Ltd | Real estate | 2020 |
| Chelworth Project MGT Ltd | Professional & scientific | 2018 |
| Chemetall India Company Limited | Financial services | 1972 |
| Chemetall Limited | Wholesale & retail | 1930 |
| Chemical Pathology Clinical Services Limited | Health & social care | 2023 |
| Chemicali Ltd | Health & social care | 2023 |
| Chemotor Ltd | Wholesale & retail | 2024 |
| Chemserve Limited | Extraterritorial | 1985 |
| Chemspeed Technologies Limited | Administrative & support | 2001 |
| Chen's Takeaway Ltd | Hospitality | 2022 |
| Cheng Guan International Trade Ltd | Wholesale & retail | 2025 |
| CHENNAI44 Ltd | Real estate | 2015 |
| Chenolam Consulting Limited | Information & communication | 2013 |
| Chepstow Community Centre (MK) | Other services | 1991 |
| Cherene and Co Ltd | Financial services | 2026 |
| Cherry Living Services Ltd | Real estate | 2025 |
| Cherry Tree Park Management Company Limited | Households | 2015 |
| Cherry Velvet Studio Ltd | Wholesale & retail | 2025 |
| Cherubim & Seraphim Movement Church (Jehovah Jireh) AYO NI O Limited | Other services | 2004 |
| Cheryl Brown Ltd | Other services | 2022 |
| Cheryl Eyre Education Services Ltd | Education | 2023 |
| Cheshire 3 Holdings Limited | Wholesale & retail | 2019 |
| Cheshire Energy Advisory Limited | Professional & scientific | 2017 |
| Chester 1971 Limited | Extraterritorial | 2014 |
| Chester Square Home Limited | Real estate | 2012 |
| Cheta Wellness Ltd | Health & social care | 2025 |
| Chevalet Studio Ltd | Manufacturing | 2025 |
| Chez Air Destinations Limited | Administrative & support | 2024 |
| CHF Health Checks Ltd | Health & social care | 2018 |
| Chfe Ltd | Construction | 2019 |
| Chgt Limited | Professional & scientific | 2011 |
| CHI Inc (Management) Limited | Professional & scientific | 2026 |
| CHI Inc (Property) Limited | Professional & scientific | 2026 |
| Chiarello Bespoke Tiling Limited | Construction | 2015 |
| Chiba Creative Ltd | Arts & recreation | 2019 |
| Chiba Film Ltd | Information & communication | 2021 |
| Chiba International Limited | Professional & scientific | 2024 |
| Chiba Murals Limited | Construction | 2022 |
| Chibless Care Limited | Public administration | 2023 |
| Chibog Ltd | Hospitality | 2021 |
| Chichi Services Ltd | Administrative & support | 2026 |
| Chichimaps Limited | Health & social care | 2013 |
| Chicken Empire MK Ltd. | Hospitality | 2020 |
| Chicsnacks Limited | Manufacturing | 2018 |
| Chidanandaji Ltd | Health & social care | 2020 |
| Chidochababa Innovations Ltd | Health & social care | 2014 |
| Chief Growth Ltd | Information & communication | 2022 |
| Chikara Intelligence Ltd | Information & communication | 2025 |
| Chiki Ceramiki Ltd | Arts & recreation | 2009 |
| Childerley Sporting Events Ltd | Arts & recreation | 2017 |
| Childerley Sporting Ltd | Arts & recreation | 2012 |
| Childminder END Elderly Ltd | Health & social care | 2024 |
| Children's Kingdom Ltd | Health & social care | 2016 |
| Chill IT Limited | Professional & scientific | 2004 |
| Chilli 25 Ltd | Hospitality | 2025 |
| Chilli Chilli JAM JAM Ltd | Manufacturing | 2025 |
| Chilli Spice Limited | Hospitality | 2016 |
| Chiltern Bookkeeping and Accountancy Services Ltd | Professional & scientific | 2010 |
| Chiltern Creative Limited | Real estate | 1976 |
| Chiltern Door Systems Limited | Construction | 2004 |