| Badrunissa Limited | Hospitality | 2002 |
| Bain Plant Limited | Construction | 2003 |
| Balderton Capital Investment Limited | Financial services | 2025 |
| Balmy Beauty Apothecary Ltd | Other services | 2021 |
| Banks & Evans (Properties) Limited | Construction | 1999 |
| Banksearch Information Consultancy Limited | Information & communication | 2000 |
| Barlow Gray Construction Limited | | 1991 |
| Bates Developments Limited | Construction | 2007 |
| Bathrooms & Kitchens by Design Limited | Wholesale & retail | 2002 |
| BE Consulting Services Limited | Professional & scientific | 2005 |
| Beauchamp House Management (Kenilworth) Limited | Households | 1987 |
| Beaver-Visitec International (UK) Limited | Administrative & support | 2010 |
| Beaver-Visitec International Sales Limited | Wholesale & retail | 2010 |
| Bedworth Visionplus Limited | Professional & scientific | 2005 |
| Belvoirbed Ltd | Agriculture & fishing | 2008 |
| Bendada Limited | Real estate | 1976 |
| Benson Central Limited | Professional & scientific | 2004 |
| Bericote Group Holdings Limited | Financial services | 2018 |
| Bertie Court Management Co. Limited | Households | 1986 |
| Biaret Limited | Information & communication | 2007 |
| Bidford Motor Company Limited | Wholesale & retail | 2004 |
| Bigdogsclocks Limited | Professional & scientific | 2007 |
| Bill Chater Carpentry Services Limited | Construction | 1999 |
| Binswood Launderette Limited | Other services | 2007 |
| Bird Services Limited | Real estate | 2003 |
| BKZ Enterprises Limited | Construction | 2008 |
| Blythe Wills Limited | Professional & scientific | 2008 |
| BOB Powell Consulting Ltd | Professional & scientific | 2007 |
| Boothroyd Property Services Limited | Real estate | 1987 |
| Bowdraper Limited | Administrative & support | 1977 |
| Bowens of Alcester | Wholesale & retail | 1962 |
| Bradley Cave Ltd | Professional & scientific | 2003 |
| Brand Boxes Limited | Professional & scientific | 2025 |
| Brian Catchpole Transport Limited | Transport & logistics | 2002 |
| Brickworth Investment Ltd | Real estate | 2020 |
| Bridge END Gardens Limited | Households | 1974 |
| Bright Vision Events Ltd | Administrative & support | 1987 |
| Briter Aviation Services Limited | Transport & logistics | 1987 |
| British Motor Industry Heritage Centre Limited | Hospitality | 1988 |
| British Motor Industry Heritage Trust | Arts & recreation | 1983 |
| British Simmental Cattle Society Limited(The) | Other services | 1970 |
| Broadwing Limited | Hospitality | 1997 |
| Brooker Properties Limited | Real estate | 1990 |
| Brunswick Healthy Living Centre Limited | Health & social care | 2007 |
| Bubbenhall`S Malt Shovel Limited | Administrative & support | 2007 |
| Buckingham Swimming Pools Limited | Construction | 1989 |
| Buildcraft Property Maintenance Ltd | Construction | 2021 |
| Bulkington Village Centre | Arts & recreation | 1996 |
| Bull & Young Quality Butchers Limited | Wholesale & retail | 1996 |
| Bullimore Properties Limited | Real estate | 1996 |
| Burton Farms (Stratford) Limited | Real estate | 1974 |
| Bush Bricklaying Contractors Ltd | Construction | 2003 |
| BVI Group Limited | Financial services | 2021 |
| BVI Holdings Kensington Limited | Financial services | 2018 |
| BVI Holdings Limited | Financial services | 2018 |
| BVI Holdings Mayfair Limited | Financial services | 2019 |
| BVI Knightsbridge Limited | Financial services | 2018 |
| BVI Ovington Limited | Financial services | 2018 |
| BVI Victoria Limited | Other services | 2019 |
| C & C Tyres & Exhausts Limited | Wholesale & retail | 2003 |
| C & K Morton (Farmers) Limited | Agriculture & fishing | 2002 |
| C Wiltshire Limited | Professional & scientific | 1999 |
| C.A. Sagar & Co. Limited | Wholesale & retail | 1951 |
| C.A.K. Tanks Limited | Professional & scientific | 1999 |
| C.D. Atkinson Engineering Company Limited | Manufacturing | 1981 |
| C.H.S. Construction Limited | Construction | 2003 |
| CAD Equipe Limited | Professional & scientific | 2006 |
| CAL Gavin Research Ltd. | Professional & scientific | 1998 |
| Calserv Limited | Manufacturing | 2002 |
| Calvitch Design & Build Ltd | Professional & scientific | 2006 |
| Camelian Ltd | Other services | 2000 |
| Camellia Holdings Ltd | Manufacturing | 2024 |
| Cameron Soft Furnishings Limited | Manufacturing | 2011 |
| Cancer Vaccines Limited | Professional & scientific | 1999 |
| Cannylads Limited | Construction | 1979 |
| Cape Road Dental Practice Limited | Health & social care | 2007 |
| Cape Verde Exclusive Ltd | Extraterritorial | 2007 |
| Caravan Accessories (Kenilworth) Limited | Professional & scientific | 1970 |
| Caravan Accessories C.A.K. Tanks Ltd. | Manufacturing | 1998 |
| Cardigan House Management Company Limited | Households | 2000 |
| Cardscale Limited | Other services | 1994 |
| Carlton Watson Automotive Limited | Wholesale & retail | 2026 |
| Cart & TIP Services Ltd | Other services | 2020 |
| Caspian Designs Ltd. | Information & communication | 1999 |
| Castle Enterprises (Midlands) Limited | Manufacturing | 2003 |
| Caton Agricultural Limited | Agriculture & fishing | 1984 |
| Centaur Biomechanics Limited | Professional & scientific | 2006 |
| Central Control Services Limited | Construction | 1988 |
| Central Control Systems Limited | Professional & scientific | 1998 |
| Central Window Cleaners Limited | Administrative & support | 2004 |
| Change Management Consultancy Limited | Professional & scientific | 2006 |
| Charles Watts Engineering Limited | Manufacturing | 1949 |
| Cherwell Associates Limited | Professional & scientific | 2005 |
| Chester House Hotel Limited | Hospitality | 2006 |
| Chillimint (Europe) Limited | Professional & scientific | 2009 |
| China International Engineering Company Limited | Professional & scientific | 2015 |
| Church END Brewery Limited | Manufacturing | 1994 |
| Churchill Executive Search Limited | Administrative & support | 2012 |
| Circle Insurance Services (Nottingham) Ltd | Extraterritorial | 2000 |
| Citizens Advice South Warwickshire | Other services | 2004 |