| CEJ Investments Ltd | Real estate | 2017 |
| Celah Innovations Ltd | Wholesale & retail | 2021 |
| Celiam Ltd | Real estate | 2020 |
| Cellular Technologies Ltd | Information & communication | 2014 |
| Cellys Gloucester Hair Studio Ltd | Other services | 2018 |
| Celsius Cooling and Heating Ltd | Manufacturing | 2018 |
| Celsius P & H Ltd | Construction | 2018 |
| Cemo Safe Storage Limited | Wholesale & retail | 2010 |
| Cenaj Enterprise UK Ltd | Transport & logistics | 2025 |
| Centre for Practical Innovation in Care Ltd | Health & social care | 2018 |
| Centre Pointe Creative Dance Academy Ltd | Education | 2023 |
| Century House (Gloucester) Limited | Professional & scientific | 2008 |
| Cerano Ceramics Limited | Manufacturing | 2025 |
| Cerberon Ltd | Construction | 2025 |
| Certainmove Property Management Limited | Real estate | 1994 |
| CEY Synergy Ltd | Manufacturing | 2024 |
| Cezri Group Limited | Wholesale & retail | 2023 |
| CG & IB Property Ltd | Real estate | 2021 |
| CG Dining Limited | Hospitality | 2026 |
| CG Energy Solutions Limited | Administrative & support | 2025 |
| CG Nail Ltd | Other services | 2024 |
| Cgpnc Ltd | Construction | 2021 |
| Chadbourne Properties Ltd | Real estate | 2020 |
| Chaika III Limited | Transport & logistics | 2017 |
| Chainings Limited | Manufacturing | 1983 |
| Chalham CIS Limited | Transport & logistics | 2026 |
| Chalham Limited | Professional & scientific | 2014 |
| Chamberlayne Farms Limited | Agriculture & fishing | 1964 |
| Chamberlayne Payroll Services Limited | Professional & scientific | 2016 |
| Champion Home Improvements Ltd | Construction | 2015 |
| Champion Windows Limited | Administrative & support | 2012 |
| Championship Mindsets C.I.C. | Education | 2026 |
| Champness Consulting Limited | Professional & scientific | 2022 |
| Chanderra Ltd | Manufacturing | 2023 |
| Chandlers Court Management (NO 1) Limited | Households | 1990 |
| Chandley Plumbing and Heating Ltd | Construction | 2020 |
| Chandos Fields (Brockworth) Limited | Households | 2010 |
| Chandys Enterprise Limited | Financial services | 2026 |
| Chanford Holdings Limited | Financial services | 2021 |
| Chang NOI Promotions Limited | Extraterritorial | 1994 |
| Changesoft Limited | Information & communication | 2010 |
| Changetify Consulting Ltd | Professional & scientific | 2024 |
| Changing Tack CIC | Education | 2020 |
| Chapel House Tewkesbury Limited | Households | 1987 |
| Chaplin's Property Staging Ltd | Administrative & support | 2025 |
| Chapman Land and Property Management Ltd | Agriculture & fishing | 2018 |
| Chapman Management Holdings Limited | Financial services | 2021 |
| Chapman Management Services Ltd | Real estate | 2011 |
| Chargrove Property Management Limited | Construction | 2004 |
| Charles Breese Limited | Professional & scientific | 2022 |
| Charles Christopher Homes Limited | Construction | 2020 |
| Charles Edward Flooring Ltd | Construction | 2019 |
| Charles Gordon Associates Limited | Manufacturing | 1976 |
| Charles Hospitality Group Ltd | Hospitality | 2025 |
| Charles Russell International Limited | Transport & logistics | 1992 |
| Charleston Browne Limited | Manufacturing | 2017 |
| Charlie Foyle Auctioneers Ltd | Other services | 2019 |
| Charlie's Foods Ltd | Hospitality | 2021 |
| Charlie's Trees and Stumps Ltd | Administrative & support | 2021 |
| Charnwood House Nursing Home Limited | Health & social care | 2011 |
| Chase Financial Management Limited | Financial services | 2017 |
| Chase Landscapes Ltd | Construction | 2019 |
| Chase Lane Plates Ltd | Manufacturing | 2021 |
| Chase Plumbing and Bathrooms Ltd | Construction | 2024 |
| Chase View (Prestbury) Management Limited | Households | 2009 |
| Chatcombe Enterprises Limited | Administrative & support | 2017 |
| Chaudhary & Sons Ltd | Hospitality | 2025 |
| Chauhdary Traders Ltd | Wholesale & retail | 2022 |
| Chautari Events Ltd | Arts & recreation | 2025 |
| Chawda Investment Holdings Limited | Financial services | 2025 |
| Check My Diary Ltd | Information & communication | 2025 |
| Checkers Gymnastics CIC | Arts & recreation | 2015 |
| Checks and Edges Limited | Professional & scientific | 2025 |
| Cheeky Chica Ltd | Wholesale & retail | 2012 |
| Chef Group Limited | Hospitality | 2016 |
| Chefcampers Ltd | Wholesale & retail | 2019 |
| Cheltenham & Gloucester Gymnastics Club Ltd | Arts & recreation | 2020 |
| Cheltenham & Gloucester Kitchens and Bathrooms Ltd | Construction | 2019 |
| Cheltenham and Gloucester Auto Centre Limited | Wholesale & retail | 2000 |
| Cheltenham and Gloucester Mortgages Limited | Financial services | 2022 |
| Cheltenham Brewery Limited | Manufacturing | 2006 |
| Cheltenham Business Forms Limited | Manufacturing | 1986 |
| Cheltenham Carpet Outlet Limited | Wholesale & retail | 2016 |
| Cheltenham Ceiling Co. Limited | Construction | 1980 |
| Cheltenham Construction Limited | Real estate | 1985 |
| Cheltenham Couture Cleaning Services Ltd | Administrative & support | 2026 |
| Cheltenham Equine Vets LLP | | 2015 |
| Cheltenham Exterior/Interior Painting and Decorating Ltd | Construction | 2025 |
| Cheltenham Foodie Ltd | Hospitality | 2023 |
| Cheltenham Glass (Trade Counter Sales) Limited | Manufacturing | 2023 |
| Cheltenham Hackspace Ltd | Professional & scientific | 2014 |
| Cheltenham Mowers Limited | Wholesale & retail | 2007 |
| Cheltenham Plant Hire Ltd | Construction | 2014 |
| Cheltenham Property Developments Limited | Real estate | 2014 |
| Cheltenham Strategics Limited | Professional & scientific | 2020 |
| Cheltenham Surfacing Company Limited | Construction | 1960 |
| Cheltenham Timber Products Limited | Transport & logistics | 2006 |
| Cheltenham Valeting Services Ltd | Administrative & support | 2024 |
| Cheltenham Wealth Financial Practice Ltd | Financial services | 2000 |
| Cheltenham Woodcraft Limited | Construction | 2006 |