| Chapman QA Ltd | Professional & scientific | 2013 |
| Chapman Stickels Limited | Real estate | 2019 |
| CHAPT3RS CIC | Health & social care | 2025 |
| Chapter 82 CIC | Education | 2021 |
| Chapters Activities C.I.C. | Education | 2026 |
| Charcoal 49 Ltd | Hospitality | 2026 |
| Charles & Co Limited | Construction | 2014 |
| Charles Construction Group Ltd | Construction | 2026 |
| Charles Croft Residents Management Company Ltd | Extraterritorial | 2012 |
| Charleston Commercials Limited | Wholesale & retail | 2023 |
| Charlie Care Ltd | Administrative & support | 2019 |
| Charlise Ltd | Transport & logistics | 2015 |
| Charlise Properties Ltd | Real estate | 2020 |
| Charlotte Grace Pilates Limited | Arts & recreation | 2018 |
| Charlys Restaurant Limited | Hospitality | 2019 |
| Charmaine Ball Limited | Health & social care | 2015 |
| Charming Sushi Ltd | Wholesale & retail | 2015 |
| Charrington & Brown Limited | Administrative & support | 2019 |
| Charterlink Properties Ltd | Transport & logistics | 2019 |
| Charterlink Worldwide Freight & Logistics Limited | Transport & logistics | 2009 |
| Charterlink Worldwide Holdings Limited | Administrative & support | 2025 |
| Chartres Limited | Real estate | 2024 |
| Charzmo Consulting Limited | Health & social care | 2018 |
| Chase Accountants Limited | Professional & scientific | 2011 |
| Chase Accounting Services Limited | Professional & scientific | 2024 |
| Chase Resources Ltd | Wholesale & retail | 1997 |
| Chassis-Cab Limited | Wholesale & retail | 1982 |
| Chatel Properties Limited | Financial services | 2020 |
| Chattenton Property Group Ltd | Real estate | 2024 |
| Chay Kelly Marketing Ltd | Professional & scientific | 2024 |
| Checkmate Homes Limited | Real estate | 2017 |
| Chediston Place (Halesworth) Management Company Limited | Households | 2024 |
| Chedworth and Samford Estate Ltd | Households | 2023 |
| Cheetham Estate Holdings Ltd | Financial services | 2025 |
| Chefcentre.Com Limited | Administrative & support | 2009 |
| Chefs Catering Supplies Ltd | Wholesale & retail | 2005 |
| Chefs Plate Ltd | Manufacturing | 2018 |
| Chelmsford Business Park Management Company Limited | Real estate | 2001 |
| Chelsea International Limited | Real estate | 2024 |
| Chelsie Giles Ltd | Arts & recreation | 2022 |
| Chelsworth Limited | Construction | 2002 |
| Chelsworth Peacock Limited | Hospitality | 2021 |
| Chelsworth Woodland | Arts & recreation | 2002 |
| Cheltenham Capital Holdings Limited | Financial services | 2026 |
| Cheltenham Capital Management Limited | Wholesale & retail | 2023 |
| Chemcomply Ltd | Information & communication | 2023 |
| Chempartner UK Limited | Professional & scientific | 2025 |
| Chenery Creative Limited | Professional & scientific | 2017 |
| Chennai Expresses Limited | Hospitality | 2019 |
| Chentwell Letting Ltd | Real estate | 2024 |
| Chequers Inn Limited | Hospitality | 2025 |
| Cherry Blossom House Properties Limited | Real estate | 2017 |
| Cherry Project Management Ltd | Public administration | 2025 |
| Chertsey Artists Limited | Arts & recreation | 2000 |
| Chester Gardener Ltd | Agriculture & fishing | 2010 |
| Chestnut CS Ltd | Professional & scientific | 2024 |
| Chestnut Living Limited | Real estate | 2025 |
| Chestnut Trip Limited | Transport & logistics | 2023 |
| Chevino Investments Limited | Financial services | 2020 |
| Chevron Photography Limited | Professional & scientific | 2012 |
| Chewychews UK Limited | Manufacturing | 2021 |
| CHG Limited | Real estate | 2016 |
| Chicaane Investment Company Limited | Real estate | 1957 |
| Chicago Property Ltd | Real estate | 2020 |
| Chicken & Dessert Corner Limited | Hospitality | 2024 |
| Chief Mechanic Limited | Information & communication | 2021 |
| Chigozie Ltd | Wholesale & retail | 2017 |
| Childcare Connect Limited | Administrative & support | 2025 |
| Children & Family Support Services Limited | Health & social care | 2019 |
| Chilegs Ltd | Health & social care | 2019 |
| Chilli and Spice Martlesham Ltd | Hospitality | 2024 |
| Chillin-Group Ltd | Information & communication | 2026 |
| Chillman Group Limited | Financial services | 2022 |
| Chills on Wheels Ltd | Extraterritorial | 2026 |
| Chim Chimney & Sons Elevations Limited | Construction | 2021 |
| Chim Chimney & Sons Ltd | Administrative & support | 2022 |
| Chimera Consulting Ltd | Information & communication | 2020 |
| Chimera Investment Group Ltd | Real estate | 2020 |
| Chimo Services Ltd | Transport & logistics | 2025 |
| China Chef Ipswich Ltd | Hospitality | 2022 |
| China Garden Hadleigh Ltd | Hospitality | 2018 |
| Chinchilla Limited | Financial services | 2012 |
| Chinese Chequers Stowmarket Ltd | Hospitality | 2025 |
| Chinese Wellness Centre Ipswich Ltd | Other services | 2025 |
| Chinesewei Limited | Wholesale & retail | 2013 |
| Chiobi Consultants Limited | Administrative & support | 2015 |
| Chipster Ltd | Hospitality | 2026 |
| Chitts Hill (Colchester) Management Company Limited | Households | 2021 |
| Choice Apparel Ltd | Wholesale & retail | 2015 |
| Choice Digital Limited | Information & communication | 2023 |
| Choices Clothes Limited | Wholesale & retail | 2003 |
| Choices Property Services Limited | Real estate | 2024 |
| Choise Group Ltd | Wholesale & retail | 2018 |
| Chomko & Rosier Limited | Arts & recreation | 2015 |
| Chonkywonkywood Ltd | Wholesale & retail | 2026 |
| Chosen LMN Ltd | Education | 2025 |
| CHQ Consulting Ltd | Professional & scientific | 2019 |
| Chris Bardy Ltd | Information & communication | 2013 |
| Chris Burgess Consult and Recruit Ltd | Administrative & support | 2020 |
| Chris Business Ventures Ltd | Hospitality | 2024 |