| Chef's Touch (LB) Limited | Hospitality | 2021 |
| Chelham 2018 Ltd | Real estate | 2018 |
| Chelham Investments (2005) Limited | Real estate | 2005 |
| Chellie Limited | Other services | 2005 |
| Chelsea Healthcare Ltd | Real estate | 2008 |
| Chelsea Heritage Limited | Real estate | 2021 |
| Chelsea Imperial Solutions Ltd | Transport & logistics | 2022 |
| Chelsey Cleaning Contract Limited | Administrative & support | 2024 |
| Cheltenham Landscaping & Building Services Ltd | Administrative & support | 2026 |
| Chemistry Creative Ltd | Information & communication | 2023 |
| Chemtrex Consulting Ltd | Information & communication | 2010 |
| Chequers Contract Services Limited | Administrative & support | 2004 |
| Chequers Electrical and Building Services Limited | Construction | 2004 |
| Cheri Books Ltd | Information & communication | 2024 |
| Cherished Children Limited | Health & social care | 2023 |
| Cherry Blossom Counselling, Psychotherapy & Supervision Limited | Health & social care | 2023 |
| Cherry Blossom Garden Limited | Hospitality | 2022 |
| Cherry Blue Consultants UK Limited | Public administration | 2019 |
| Cherry Garden (Janice) Ltd | Hospitality | 2026 |
| Cherry Orchard Funding Limited | Financial services | 2020 |
| Chesham Spice Ltd | Hospitality | 2024 |
| Cheshire Car Polishing Limited | Other services | 2005 |
| Chester Choice Ltd | Hospitality | 2021 |
| Chesterfield Consulting Limited | Professional & scientific | 2014 |
| Chianti Limited | Hospitality | 2025 |
| Chicago Rock Café Ltd | Hospitality | 2026 |
| Chicken & Pizza Corner Limited | Hospitality | 2019 |
| Chicken Since 2000 Ltd | Hospitality | 2025 |
| Chickenero Ltd | Hospitality | 2025 |
| Chicks Crop Shop Limited | Other services | 1987 |
| Chiknzo’S Grill Ltd | Hospitality | 2025 |
| Chilla Accountancy Ltd | Professional & scientific | 2007 |
| Chilled Vibes Drinks Ltd | Manufacturing | 2026 |
| Chilli Bar N Restaurant Limited | Hospitality | 2013 |
| Chilli Pilates (BH) Ltd | Health & social care | 2021 |
| Chilli Pilates (HM) Ltd | Health & social care | 2014 |
| Chilli Pilates (Holdings) Ltd | Financial services | 2009 |
| Chilli Pilates (IH) Ltd | Health & social care | 2009 |
| Chilli Pilates (LH) Ltd | Health & social care | 2009 |
| Chilli Pilates (MB) Ltd | Health & social care | 2021 |
| Chilli Pilates (MH) Ltd | Health & social care | 2014 |
| Chilli Pilates (of) Ltd | Health & social care | 2021 |
| Chilli Pilates (QB) Ltd | Health & social care | 2021 |
| Chilli Pilates (SH) Ltd | Health & social care | 2021 |
| Chilli Pilates (SP) Ltd | Health & social care | 2014 |
| Chilli Pilates Central Services Ltd | Administrative & support | 2009 |
| Chilli Pilates Investments Ltd | Extraterritorial | 2014 |
| Chilli Pilates Ltd | Extraterritorial | 2015 |
| Chilli Pilates Online Ltd | Health & social care | 2014 |
| Chilli Pilates Retail Ltd | Wholesale & retail | 2014 |
| Chilli Pilates Services Ltd | Administrative & support | 2009 |
| Chillstone Scientific Limited | Extraterritorial | 2013 |
| Chillwave Solution Ltd | Wholesale & retail | 2025 |
| Chiltern Business Solutions Ltd | Administrative & support | 2013 |
| Chiltern Cars Ltd | Transport & logistics | 2011 |
| Chiltern Doors & Windows Limited | Construction | 2025 |
| Chiltern Doors Ltd | Wholesale & retail | 2018 |
| Chiltern Future Limited | Real estate | 2023 |
| Chiltern Green Energy Limited | Professional & scientific | 2022 |
| Chiltern Green Holdings Limited | Real estate | 2024 |
| Chiltern Hills PCN Ltd | Health & social care | 2021 |
| Chiltern Holdings Limited | Real estate | 1954 |
| Chiltern Hotel Management Limited | Hospitality | 2019 |
| Chiltern Investments Ltd | Real estate | 2020 |
| Chiltern Learning Trust | Education | 2011 |
| Chiltern Online Ltd | Administrative & support | 2020 |
| Chiltern Private Hire Services Ltd | Transport & logistics | 2019 |
| Chiltern Renewables Limited | Professional & scientific | 2020 |
| Chiltern Renewables Millfield Limited | Construction | 2022 |
| Chiltern Rose Ltd | Real estate | 2017 |
| China House Dunstable Ltd | Hospitality | 2025 |
| China House Wang Limited | Hospitality | 2024 |
| China Mart Limited | Wholesale & retail | 2013 |
| Chinarian Ltd | Wholesale & retail | 2021 |
| Chinese Jade Garden Ltd | Hospitality | 2018 |
| Chinese Takeaway 168 Ltd | Hospitality | 2022 |
| Chingland Consultancy Limited | Administrative & support | 2019 |
| Chintu&Puntu Ltd | Transport & logistics | 2023 |
| Chio Limited | Health & social care | 2013 |
| Chique 50/50 Music MIX Ltd | Information & communication | 2024 |
| Chique Musicmix Studio Ltd | Information & communication | 2024 |
| Chique Radio Ltd | Arts & recreation | 2024 |
| Chirag Jewellers Limited | Manufacturing | 2023 |
| Chisca Ltd | Construction | 2023 |
| Chishtis Financial Services Ltd | Financial services | 2025 |
| Chizymo Limited | Professional & scientific | 2020 |
| CHL Block Management Limited | Real estate | 2025 |
| CHL Coachwork Ltd | Wholesale & retail | 2023 |
| CHL Estate Management Limited | Real estate | 2026 |
| CHL Group Management Limited | Real estate | 2026 |
| Chloe Nezaj Limited | Real estate | 2016 |
| Chloe-Mae Holdings Limited | Administrative & support | 2023 |
| Chloes Coffee Ltd | Hospitality | 2019 |
| Chmkt Ltd | Administrative & support | 2021 |
| Choccos Stopsley Limited | Wholesale & retail | 2025 |
| Chocolate Scotsman Ltd | Construction | 2014 |
| Choice Mart Limited | Wholesale & retail | 2026 |
| Choolaegg Ltd | Health & social care | 2024 |
| Choudhary Traders Ltd | Wholesale & retail | 2019 |
| Choudhry Constructions Ltd | Construction | 2022 |