| Batemans (Sports) Limited | Wholesale & retail | 1941 |
| BC Storage Ltd | Transport & logistics | 2017 |
| BDM Financial Consultants Ltd | Financial services | 2003 |
| BDR Design Limited | Professional & scientific | 2000 |
| Beaudesert Park School Trust Limited | Education | 1968 |
| Beaufort Court (Cirencester) Management Company Limited | Households | 1994 |
| Beechfield Park Management Limited | Households | 1996 |
| Belle Photo Limited | Arts & recreation | 2006 |
| Belmont Park Limited | Real estate | 1995 |
| Belmore House Limited | Households | 2004 |
| Bennett Built Motorsport Limited | Manufacturing | 2021 |
| Bennetts Farm Limited | Agriculture & fishing | 2003 |
| Berkeley Garage (Cheltenham) Limited | Wholesale & retail | 2003 |
| Beyond Creative Design Ltd | Professional & scientific | 2014 |
| Bidford Bright Stars Limited | Health & social care | 2019 |
| Billot Limited | Real estate | 1998 |
| BK RIP Ltd | Construction | 2016 |
| Blackboys House Management Company Limited | Real estate | 2010 |
| Blade Barbers Dursley Ltd | Other services | 2022 |
| Blueboy Carpets Limited | Wholesale & retail | 1983 |
| Bodyharmonics Limited | Other services | 1999 |
| Boldlute Limited | Construction | 1989 |
| Books Plus Gloucester Limited | Wholesale & retail | 2005 |
| Bowfell Management Ltd. | Professional & scientific | 1999 |
| BPC Consulting Limited | Professional & scientific | 2007 |
| Brabow Engineering Company Limited | Manufacturing | 1966 |
| Brandrule Limited | Education | 1985 |
| Briarlea Care & Supported Living Limited | Health & social care | 2003 |
| Brierley Hill Services Limited | Wholesale & retail | 2001 |
| Bristol & Gloucestershire Gliding Club Limited | Arts & recreation | 1977 |
| British Approvals for Fire Equipment Limited | Public administration | 2025 |
| British Holiday and Home Parks Association Limited | Professional & scientific | 1962 |
| Broadlands Pre-School Centre | Education | 1994 |
| Broadreach Designs Limited | Professional & scientific | 1992 |
| Brocante Exchange Limited | Wholesale & retail | 2003 |
| Brockworth Court Partnership | | 1992 |
| Broomville Limited | Information & communication | 1993 |
| Building and Technical Services Ltd | Real estate | 2005 |
| Bumford Property Ltd | Real estate | 2023 |
| Burghley Commercial Estates (Europe) Limited | Construction | 1989 |
| Bushell & Meadows Limited | Manufacturing | 1962 |
| BWW Limited | Hospitality | 2003 |
| C F R Group Services Limited | Construction | 2002 |
| C&D Soft Pretzels Ltd | Hospitality | 2004 |
| Cabot Design Limited | Professional & scientific | 2000 |
| Cabot Systems Limited | Extraterritorial | 2004 |
| Calcot Health & Leisure Company Limited | Hospitality | 2000 |
| Calcot Manor Hotel Limited | Hospitality | 1992 |
| Calloway Ltd | Administrative & support | 2007 |
| Camargue Group Limited | Professional & scientific | 2000 |
| Campden BRI | Professional & scientific | 1952 |
| Campden BRI (Chipping Campden) Limited | Professional & scientific | 1999 |
| Campden BRI (Nutfield) | Professional & scientific | 1992 |
| Cardinal Systems Limited | Information & communication | 1998 |
| Carewash Limited | Real estate | 1993 |
| Carr Solutions Limited | Professional & scientific | 2006 |
| Carroll Holdings Limited | Administrative & support | 2006 |
| Carron Mann Ltd | Wholesale & retail | 1937 |
| Caspian Caviar Limited | Wholesale & retail | 2002 |
| Castaway Properties Ltd | Real estate | 2007 |
| Caught & Cured Limited | Manufacturing | 2011 |
| CEC Europe Resourcing Limited | Administrative & support | 2002 |
| Central Clinical Research Services Partnership | | 1999 |
| Central Stores (Lydbrook) Limited | Financial services | 2003 |
| CH Medical Services Ltd | Health & social care | 2017 |
| Chalace Ltd | Construction | 1999 |
| Charles Russell Transport UK Limited | Transport & logistics | 2003 |
| Charlton Abbotts Landscaping Limited | Agriculture & fishing | 1993 |
| Charlton Construction (GB) Limited | Construction | 2000 |
| Charmont Ltd | Construction | 2006 |
| Charter Travel (for Groups) Limited | Administrative & support | 2006 |
| Chase Leisure Limited | Extraterritorial | 1996 |
| Chaucer Homes Ltd | Administrative & support | 2000 |
| Cheltenham College Services Limited | Construction | 1993 |
| Cheltenham Medical Company Limited | Manufacturing | 2003 |
| Cheltenham Open Door | Health & social care | 1997 |
| Cheltenham Properties Limited | Real estate | 2006 |
| Cheltenham Racing Limited | Extraterritorial | 1993 |
| Cheltenham Tree Services Limited | Other services | 2003 |
| Cheltenham Ymca | Hospitality | 2000 |
| Cheltine Limited | Real estate | 1914 |
| Chipping Campden School Enterprises Ltd | Hospitality | 2017 |
| Choice Fire & Security Solutions Limited | Administrative & support | 2004 |
| Choice Security & Fire Solutions Ltd | Extraterritorial | 2004 |
| Christopher Powell | | 1994 |
| Churn Properties Limited | Construction | 2003 |
| Cider Mill Marketing Ltd | Administrative & support | 2025 |
| Cirencester Car Club Limited | Arts & recreation | 1981 |
| Cirencester Garage Limited | Real estate | 1930 |
| Cirencester Skips Limited | Extraterritorial | 2003 |
| Cjgr Italy Limited | Financial services | 2006 |
| CK Accountants Limited | Professional & scientific | 2001 |
| Clark & Maslin Limited | Professional & scientific | 2006 |
| Classical Stores Limited | Wholesale & retail | 2019 |
| Cleave Systems Limited | Professional & scientific | 2006 |
| Clevedon Organs (UK) Limited | Manufacturing | 2007 |
| Clincy UK Limited | Transport & logistics | 2005 |
| Clough Winter Management Services Ltd | Real estate | 1987 |
| Cocoa Limited | Wholesale & retail | 2006 |
| Colin John Hair Limited | Other services | 2006 |