| Charles Property Group Limited | Real estate | 2025 |
| Charles Stratton Estates Limited | Real estate | 2014 |
| Charles Stratton Investments Limited | Real estate | 2018 |
| Charlie Selvey Ltd | Professional & scientific | 2024 |
| Charliewell Ltd | Information & communication | 2010 |
| Charlton Catering Limited | Real estate | 2024 |
| Charm Consultancy Ltd | Administrative & support | 2018 |
| Charsaval Ltd | Health & social care | 2024 |
| Chartwell House Broadstairs Ltd | Health & social care | 2022 |
| Chase Cross School of Motoring Limited | Education | 2003 |
| Chase Education Limited | Wholesale & retail | 2019 |
| Chase Electrical Contractors Limited | Construction | 2014 |
| Chase Racing Holdings Limited | Financial services | 2025 |
| Chase&Co Ltd | Other services | 2021 |
| Chatel Noire Ltd | Other services | 2020 |
| Chaudhry INT Limited | Wholesale & retail | 2025 |
| Chauhan Building Solutions Limited | Construction | 2017 |
| Chauhan Traders Limited | Other services | 2023 |
| Chax Noble Group Limited | Wholesale & retail | 2018 |
| Chbary Holdings Ltd | Hospitality | 2021 |
| CHC Accountancy Limited | Professional & scientific | 2016 |
| CHC Partners LLP | | 2012 |
| CHE Intercultural Exchange Limited | Education | 2019 |
| Cheap Labour Ltd | Wholesale & retail | 2007 |
| Cheap Piano Lessons Limited | Education | 2023 |
| Check Hybrid Automotive Ltd | Wholesale & retail | 2021 |
| Check the TAG Ltd | Other services | 2015 |
| CHEEMA22 Ltd | Wholesale & retail | 2024 |
| Cheena Corporate Limited | Wholesale & retail | 2019 |
| Cheeseclip Ltd | Manufacturing | 2026 |
| Chef Asia Romford Limited | Hospitality | 2022 |
| Chegwidden & Co Ltd | Extraterritorial | 2011 |
| Chelaru Transit Ltd | Transport & logistics | 2021 |
| Chelmsford Coffee Ltd | Hospitality | 2025 |
| Cheltrad Ltd. | Wholesale & retail | 2012 |
| Chem Click Ltd | Wholesale & retail | 2025 |
| Chennai Mirchi Ltd | Hospitality | 2014 |
| Chenrobz Limited | Wholesale & retail | 2022 |
| Chequered Flag Land Limited | Real estate | 2017 |
| Cherish Kids Ltd | Education | 2024 |
| Cherished Care Ltd | Hospitality | 2021 |
| Cherison Intergrated Services Ltd | Construction | 2014 |
| Cherry Car Company Limited | Wholesale & retail | 2017 |
| Cheryl Properties Limited | Real estate | 1963 |
| Chescottie Ltd | Professional & scientific | 2023 |
| Chestnut Court (Vange) Management Company Limited | Households | 1986 |
| Chetonai Bangladesh (Bijoy Mela UK) | Other services | 2021 |
| Chevannes Consultancy Limited | Professional & scientific | 2026 |
| Cheviot Services Ltd | Administrative & support | 2024 |
| Cheyne House Ilfracombe Management Company Limited | Households | 2024 |
| Chhokar Solutions Ltd | Information & communication | 2015 |
| CHI Enterprise Ltd | Other services | 2018 |
| Chi-Bon Ltd | Transport & logistics | 2017 |
| Chic Ntoma Limited | Wholesale & retail | 2014 |
| Chick a Holic Limited | Hospitality | 2022 |
| Chick Pick Paradise Ltd | Wholesale & retail | 2015 |
| Chick'N Limited | Administrative & support | 2014 |
| Chick'N Woking Limited | Hospitality | 2019 |
| CHICK2GO Ltd | Hospitality | 2024 |
| Chicken & Pizza Box Ltd | Manufacturing | 2025 |
| Chicken Lovers Ltd | Hospitality | 2022 |
| Chicken Mart Limited | Manufacturing | 2014 |
| Chickology Limited | Hospitality | 2025 |
| Chicksand Lettings Ltd | Households | 2023 |
| Chidex Limited | Health & social care | 2023 |
| Chidubem Care Services Limited | Health & social care | 2019 |
| Chigwell Cardiac Centre Limited | Health & social care | 2024 |
| Chigwell Mansion Limited | Hospitality | 2024 |
| Chile's Effort Limited | Health & social care | 2018 |
| Chill-Lax Stores Ltd | Extraterritorial | 2020 |
| Chilli Spice Woking Limited | Hospitality | 2022 |
| Chimaera Financial Services Ltd | Information & communication | 2013 |
| China Lane Ltd | Wholesale & retail | 2019 |
| Chinese Heist Ltd | Hospitality | 2025 |
| Chinoph Services Limited | Wholesale & retail | 2018 |
| Chip & Dowel Carpentry Building Limited | Construction | 2019 |
| Chippenham Holdings Ltd | Administrative & support | 2024 |
| Chipper's Fish Ltd | Hospitality | 2020 |
| Chiriac Construction Ltd | Construction | 2023 |
| Chohan Enterprises Private Limited | Wholesale & retail | 2024 |
| Chohan Halal Ltd | Wholesale & retail | 2020 |
| Choice Building Contractors Limited | Administrative & support | 2009 |
| Choice Inc Ltd | Administrative & support | 2017 |
| Choice Management Consultancy (TBY) Ltd | Professional & scientific | 2022 |
| Choicetown Property Management Limited | Real estate | 1988 |
| Chommyd Ltd | Hospitality | 2021 |
| Choose Your Accountant Ltd | Professional & scientific | 2015 |
| Chopped Meat Ltd | Wholesale & retail | 2026 |
| Chorley Market Street Ltd | Construction | 2024 |
| Chosen Online Ltd | Professional & scientific | 2025 |
| Chosen Services UK Limited | Health & social care | 2009 |
| Chouhan Properties and Developers Ltd | Real estate | 2023 |
| Chowdhury Medical Services Limited | Health & social care | 2008 |
| Chowdhury Real Estate Ltd | Real estate | 2024 |
| CHP Interiors Ltd | Construction | 2017 |
| CHP Valuers Limited | Administrative & support | 2010 |
| Chris Elcom Ltd | Construction | 2015 |
| Chris Nation Limited | Transport & logistics | 2018 |
| Chrissam Management Ltd | Real estate | 2025 |
| Christ Heritage Assembly A.K.A. Triumphant Chapel Limited | Other services | 2008 |