| Cheltenham Storage Solutions Limited | Transport & logistics | 2016 |
| Cheltenham Stoves and Fireplaces Limited | Construction | 2013 |
| Cheltenham Surveyors and Valuers Ltd | Professional & scientific | 2025 |
| Cheltenham Terrace Nominees Limited | Extraterritorial | 2026 |
| Cheltenham Theatre Investments Limited | Financial services | 2017 |
| Cheltenham Tourist Information Centre CIC | Administrative & support | 2025 |
| Cheltenham Trauma Clinic LLP | | 2008 |
| Cheltenham Tutoring Ltd | Education | 2024 |
| Cheltenham Tweed Ltd | Wholesale & retail | 2026 |
| Cheltenham USC 2024 Ltd | Hospitality | 2024 |
| Cheltenham Waste Limited | Water & waste | 2024 |
| Cheltenham Wealth and Management Ltd | Financial services | 2011 |
| Cheltenham Welding Supplies Limited | Wholesale & retail | 2013 |
| Cheltenham Wine & Sausage Limited | Extraterritorial | 2006 |
| Cheltenham Worktops Limited | Manufacturing | 2023 |
| Cheltenham&District Painting&Decorating Ltd | Construction | 2024 |
| Cheltenhamswing.Dance CIC | Arts & recreation | 2021 |
| Cheltmed Limited | Financial services | 2019 |
| Cheltonian Care (UK) Ltd | Health & social care | 2006 |
| Cheltpad Limited | Real estate | 2016 |
| Cheltpharm Holding Ltd | Real estate | 2025 |
| Cheltport Trustees Limited | Administrative & support | 2025 |
| Cheltprops Limited | Real estate | 2021 |
| Cheltsea Ltd | Hospitality | 2020 |
| Chennai Balti Ltd | Hospitality | 2023 |
| Chequers Management Company (West END) Ltd | Households | 2018 |
| Cherry Court Investments | Financial services | 2025 |
| Cherry Group App Ltd | Construction | 2016 |
| Cherry Group Homes Ltd | Construction | 2021 |
| Chess Equine Laboratory Limited | Professional & scientific | 2002 |
| Chess Equine Products Limited | Manufacturing | 1994 |
| Chessman Advisory Limited | Professional & scientific | 2020 |
| Chester Property Developments Limited | Construction | 2020 |
| Chestnut Gardens London Ltd | Administrative & support | 2024 |
| Chestnut Green Management Company Limited | Households | 1976 |
| Cheyene Limited | Professional & scientific | 2025 |
| Chibroco Limited | Real estate | 2007 |
| Chic Chef on Demand Ltd | Hospitality | 2025 |
| Chichi Fit Ltd | Other services | 2022 |
| Chicken Micken Limited | Hospitality | 2026 |
| Chicksgrove Quarry Limited | Mining & quarrying | 1997 |
| Chidwick Electrical Ltd | Construction | 2019 |
| Chikenzo Limited | Hospitality | 2017 |
| Chilcott Properties Limited | Real estate | 2009 |
| Child and Family Learning Trust | Education | 2011 |
| Child's Play Clubs UK Ltd | Health & social care | 2017 |
| Childcare Marketing Ltd | Education | 2020 |
| Children in Mind (CIM) Ltd | Health & social care | 2025 |
| Childrenleadtheway CIC | Education | 2024 |
| Chilli Carl Ltd | Hospitality | 2024 |
| Chiltern Services Group Limited | Financial services | 2023 |
| Chimera Kitchens Limited | Wholesale & retail | 2012 |
| Chinese Business Support Limited | Professional & scientific | 2003 |
| Chinese Culture Connection Limited | Arts & recreation | 2024 |
| Chinese Medical Centre Limited | Education | 1999 |
| Chip Shed Cheltenham Limited | Hospitality | 2022 |
| Chippenham TIP Site Partnership | | 1990 |
| Chloeharry Ltd | Financial services | 2021 |
| Choc Clifford Unlimited | Financial services | 2022 |
| Choccie Trading Ltd | Wholesale & retail | 2019 |
| Chocob Team Ltd | Administrative & support | 2024 |
| Choose to Grow L&D Ltd | Professional & scientific | 2018 |
| Chorley's Auctioneers Limited | Wholesale & retail | 2006 |
| Chosen 9 Properties Ltd | Real estate | 2019 |
| Chosen Ventures Limited | Wholesale & retail | 2021 |
| Chosen View Construction Ltd | Construction | 2023 |
| Chris Barnham Research and Strategy Limited | Professional & scientific | 2014 |
| Chris D Projects Ltd | Information & communication | 2017 |
| Chris Hughes Gardens Ltd | Administrative & support | 2010 |
| Chris Maude Limited | Arts & recreation | 2004 |
| Chris Nelson Plumbing & Heating Ltd | Construction | 2022 |
| Christ the King Ministries Ltd | Health & social care | 2016 |
| Christchurch Court Cheltenham Management Company Limited | Households | 1980 |
| Christchurch Healthcare and Management Limited | Professional & scientific | 2004 |
| Christian City Church - Cheltenham | Other services | 2005 |
| Christiane Stanke Consulting Limited | Administrative & support | 2018 |
| Christie International Limited | Wholesale & retail | 2002 |
| Christine Cross Limited | Professional & scientific | 2003 |
| Christirena Ltd | Real estate | 2021 |
| Christopher Clarke (Antiques) Limited | Wholesale & retail | 1987 |
| Christopher Cornwell Photography Limited | Professional & scientific | 2013 |
| Christopher Davidson Solicitors LLP | | 2010 |
| Christopher Galloway Associates Limited | | 1968 |
| Christos Carpentry Company Limited | Manufacturing | 2018 |
| Chrit Managed Services Limited | Information & communication | 2014 |
| Chriza Ltd | Transport & logistics | 2024 |
| Chroma Renovations Limited | Construction | 2019 |
| Chrome Valley Ltd | Wholesale & retail | 2025 |
| Chrysalis 4 Design Limited | Professional & scientific | 2013 |
| CHS Restaurants Limited | Hospitality | 2025 |
| Chunkichilli Knitwear Limited | Manufacturing | 2004 |
| Church Court Cottages Prestbury Limited | Real estate | 1985 |
| Church Farm Brailes Limited | Agriculture & fishing | 1961 |
| Church Road Coffee Ltd | Hospitality | 2024 |
| Church Street Stroud Management Company Limited | Households | 2022 |
| Churchdown Limited | Construction | 2019 |
| Churchdown Osteopaths Ltd | Health & social care | 2011 |
| Churchill Court Cheltenham (1990) Limited | Households | 1991 |
| Churchill Glass and Glazing Ltd | Manufacturing | 2023 |
| Churchill Holding Ltd | Financial services | 2025 |