| CH Highways Ltd | Professional & scientific | 2019 |
| CH Smart Ltd | Construction | 2015 |
| CH59 Ltd | Hospitality | 2022 |
| Chackson Ltd | Health & social care | 2025 |
| Chai Life Ltd | Hospitality | 2016 |
| Chaii Ltd | Hospitality | 2024 |
| Chaiiwala Cafe Limited | Hospitality | 2017 |
| Chakk Group Ltd | Construction | 2023 |
| Chalk and Chambers Ltd | Construction | 2023 |
| Challenge Burger Ltd | Hospitality | 2025 |
| Chamberlain Electrical Ltd | Construction | 2009 |
| Champion Flooring Limited | Administrative & support | 2012 |
| Champion System UK Ltd | Wholesale & retail | 2021 |
| Champro Ltd | Wholesale & retail | 2025 |
| Change 2 Achieve Ltd | Professional & scientific | 2010 |
| Channing Utilities Ltd | Construction | 2019 |
| Chantry Renovations Limited | Construction | 2023 |
| Chapel Farm Barns Management Company Limited | Real estate | 2015 |
| Chapel Gate Residents Management Company Limited | Households | 2022 |
| Chapelbridge Farming Limited | Extraterritorial | 2015 |
| Chapelwood Carpentry (UK Wide) Ltd | Construction | 2011 |
| Chapelwood Construction Ltd | Construction | 2020 |
| Chapman Development Group Ltd | Wholesale & retail | 2022 |
| Chapman Online Services Ltd | Professional & scientific | 2020 |
| Chapter House Consultancy Services Ltd | Information & communication | 2025 |
| Chariot Financial Services Limited | Professional & scientific | 2022 |
| Charis Grants Limited | Administrative & support | 2003 |
| Charis Management Group Limited | Financial services | 2011 |
| Charisma Advancement Limited | Professional & scientific | 2025 |
| Charisnack Ltd | Extraterritorial | 2015 |
| Charles Aldred Limited | Construction | 1959 |
| Charles Ashby Developments Limited | Construction | 2006 |
| Charles Guest Ltd | Transport & logistics | 2024 |
| Charles Whalley Holdings Ltd | Financial services | 1986 |
| Charleybhair Ltd | Other services | 2024 |
| Charlotte Ives Limited | Hospitality | 2015 |
| Charlotte Jacqueline Limited | Manufacturing | 2012 |
| Charlotte Park Properties Ltd | Real estate | 2017 |
| Charlton Lettings Ltd | Real estate | 2024 |
| Charlton Recycled Autoparts Limited | Wholesale & retail | 1971 |
| Charly-Handy Limited | Construction | 2021 |
| Charm Nails Spa Limited | Other services | 2022 |
| Charmazz Ltd | Administrative & support | 2012 |
| Charmi Care Ltd | Administrative & support | 2020 |
| Charmy Limited | Professional & scientific | 2023 |
| Chart Survey Solutions Ltd | Professional & scientific | 2022 |
| Charter Healthcare Limited | Extraterritorial | 1975 |
| Chartwell Close (Peterborough) Management (NO. 2) Limited | Households | 2006 |
| Chas W. Shelton Limited | Real estate | 2021 |
| Chasing the Giraffe Ltd | Professional & scientific | 2024 |
| Chatelaine Investments Ltd | Professional & scientific | 1988 |
| Chatham Residents Company Limited | Other services | 2022 |
| Chattenden Residents Company Limited | Households | 2011 |
| Chatteris Garage Ltd. | Wholesale & retail | 2005 |
| Chatteris Garage Services Ltd | Wholesale & retail | 2023 |
| Chauffeured Charm Co. Limited | Transport & logistics | 2025 |
| Chayim Limited | Health & social care | 2023 |
| Chayse Consulting Limited | Professional & scientific | 2010 |
| Cheben Star Ltd | Health & social care | 2022 |
| Cheema Cars & Travel Limited | Transport & logistics | 2026 |
| Cheers Pubs and Inns Ltd | Hospitality | 2025 |
| Chef DE LA Maison Limited | Wholesale & retail | 2002 |
| Chelb Limited | Health & social care | 2022 |
| Chelebi Ltd | Wholesale & retail | 2023 |
| Chelmer Foods Services Ltd | Wholesale & retail | 2020 |
| Chemshop Limited | Wholesale & retail | 2020 |
| Chene Properties Ltd | Construction | 2015 |
| Chens Aquatics Ltd | Wholesale & retail | 2023 |
| Chepstow Crescent Residents Company Limited | Households | 2003 |
| Cheri-Leigh Limited | Health & social care | 2025 |
| Cherish 8 Thoughts Limited | Professional & scientific | 2015 |
| Cheriyampurath Limited | Health & social care | 2018 |
| Cherry Bay Limited | Administrative & support | 2025 |
| Cherry Holdings Limited | Financial services | 2021 |
| Cherry Lodge Developments Limited | Construction | 2024 |
| Cherry Tree Business Consulting Ltd | Professional & scientific | 2026 |
| Cherry Tree Grove Ltd | Health & social care | 2023 |
| Cherrylea Ltd | Real estate | 2026 |
| Chessville Ltd | Other services | 2021 |
| Chester (Dale Camp) Residents Company Limited | Households | 2002 |
| Chez Claudine Limited | Professional & scientific | 2019 |
| Chezorama Limited | Households | 2023 |
| Chfc Ltd | Construction | 2025 |
| CHI Clothing Ltd | Wholesale & retail | 2021 |
| Chia Europe Limited | Extraterritorial | 2020 |
| Chickaros PB Ltd | Hospitality | 2025 |
| Chicken Palace (Global) Ltd | Wholesale & retail | 2015 |
| Chicken Palace (Peterborough) Ltd | Wholesale & retail | 2015 |
| Chicksands Residents Company Limited | Households | 2002 |
| Chidam Akason Limited | Manufacturing | 2019 |
| Chieflyai Ltd | Information & communication | 2026 |
| Chiefs Fast Food Peterborough Ltd | Hospitality | 2020 |
| Chigoluchi Ltd | Health & social care | 2023 |
| Chill-Serve Limited | Construction | 2011 |
| Chillcott Consultancy Limited | Professional & scientific | 2015 |
| Chillhire Limited | Wholesale & retail | 2001 |
| Chilli Brothers Gourmet Condiment Company Ltd. | Manufacturing | 2015 |
| Chilli Obsessed Ltd | Hospitality | 2022 |
| Chiltern Distribution Ltd | Transport & logistics | 2006 |
| Chilvers Construction Ltd | Construction | 2018 |