| Bradán Theatre Ltd | Isleworth | 2025 |
| Braemar Castle Limited | Braemar | 2023 |
| Braemar Royal Highland Charity | Ballater | 2006 |
| Braena Community Interest Company | Sunderland | 2010 |
| Braes Golf Centre Limited | Glasgow | 2019 |
| Braes Golf Limited | Glasgow | 2020 |
| Braes Leisure Limited | Glasgow | 2022 |
| Braeside Equestrian Centre Ltd | Dover | 2014 |
| Braeside Equestrian Ltd | Dover | 2014 |
| Bragbet Limited | Belfast | 2013 |
| Braham-Barrett & Co Limited | London | 2016 |
| Braid Hills Shop Limited | Midlothian | 1997 |
| Braided - Lets Braid Limited | Swanscombe | 2023 |
| Braids Tryst Limited | | 1946 |
| Brailsford and Ednaston Village Hall Ltd | Ashbourne | 2023 |
| Brain Blips Ltd | Wigan | 2018 |
| Brain Bottle Films Ltd | London | 2022 |
| Brain MEN Ltd | London | 2017 |
| Brain Music Company Limited | London | 2025 |
| Brain Scran Limited | Bristol | 2019 |
| Brain Space Makeup Limited | Aylesbury | 2025 |
| Brainbath Studios Ltd | Brighton | 2025 |
| Brainchild Arts CIC | London | 2021 |
| Brainfade Limited | Redditch | 2023 |
| Brains and Hunch Limited | Woodford Green | 2008 |
| Brainstorms Projects Ltd | Borehamwood | 2024 |
| Braintree Canoeing Club Ltd | London | 2021 |
| Braintree District Leisure Community Association Limited | London | 2002 |
| Braintree District Museum Trust | Braintree | 2005 |
| Braintree Golf Club Limited | Braintree | 1969 |
| Braintree Hockey Club Ltd | Braintree | 2012 |
| Braintree Town Football Club Limited | Braintree | 1986 |
| Brainwash Official Ltd | London | 2025 |
| Brainxcape Ltd | London | 2025 |
| Brainy Beast Media Limited | Woodford Green | 2013 |
| Braithwell and Micklebring Recreation and Leisure Association Ltd | Rotherham | 2013 |
| Brake a Sweat BPS Ltd | London | 2024 |
| Brake a Sweat Hammersmith Ltd | London | 2024 |
| Brakeaway Bike Tours Ltd | Colchester | 2013 |
| Brakepoint Limited | Canterbury | 2025 |
| Brakepoint Wincheap Limited | Canterbury | 2025 |
| Braley Limited | Daventry | 2019 |
| Bramall Park Golf Club Limited(The) | Stockport | 1920 |
| Bramble Tots Limited | Northampton | 2025 |
| Bramble Verbiage CIC | Oxford | 2014 |
| Brambledown Designs Limited | Romsey | 2019 |
| Bramcote Athletic Ltd | Scarborough | 2022 |
| Bramcote Driving Range Limited | Stafford | 2006 |
| Bramcote Golf Soccer Limited | Stafford | 2015 |
| Bramcote Swimming Club Limited | Nottingham | 2015 |
| Bramford Golf Centre Ltd | Ipswich | 2026 |
| Bramford Open Spaces Ltd | Bramford | 2012 |
| Bramhall Golf Club Limited(The) | Bramhall | 1913 |
| Bramhall Lane Lawn Tennis Club (Trading) Limited | Stockport | 2024 |
| Bramhall Lane Lawn Tennis Club Limited | Stockport | 2024 |
| Bramley Community Arts CIC | Leeds | 2021 |
| Bramley Golf Club Limited | Guildford | 2020 |
| Bramley Leisure Ltd | Craigavon | 2023 |
| Brampton Blitz Ltd | London | 2025 |
| Brampton Golf Club (Trading) Ltd | Carlisle | 2016 |
| Brampton Heath Golf Centre Ltd | Northampton | 1979 |
| Brampton Rovers Holdings Limited | Chesterfield | 2015 |
| Bramwellbrand Productions Ltd | Brighton | 2024 |
| Branbridges Leisure Limited | Sevenoaks | 2021 |
| Brancaster Staithe Sailing Club | Kings Lynn | 1991 |
| Brancepeth Castle Golf Club,Limited(The) | Co Durham | 1931 |
| Branch OUT Consultancy Limited | Charlbury | 2017 |
| Branches & Waves Ltd | London | 2017 |
| Branching Beyond Ltd | London | 2025 |
| Branching OUT Adventures Ltd | Shoreham-By-Sea | 2014 |
| Branco REX Ltd | Taunton | 2014 |
| Brand F Limited | Brighton | 2005 |
| Brand Film Works Ltd | Swaffham | 2018 |
| Brand Motorsports Limited | Huntingdon | 1998 |
| Brand N Deliver Limited | Sheffield | 2016 |
| Brand New AGE Films Limited | Cobham | 2020 |
| Brand Red Limited | London | 2007 |
| BRAND5 Limited | Tewkesbury | 2013 |
| Brandarque Ltd | London | 2023 |
| Branded + Moniker Ltd | London | 2024 |
| Branded Seagulls Ltd | Bristol | 2025 |
| Branded Talent Ltd | Leatherhead | 2017 |
| Brandforce Marketing Ltd. | Milton Keynes | 2004 |
| Brandinho Music Limited | London | 2025 |
| Brandle's Amusements Limited | Gerrards Cross | 2022 |
| Brandler Galleries (Brentwood) Limited | Ingatestone | 1959 |
| Brandmagic Limited | London | 2002 |
| Brandmaster Ltd | Gilmoss | 2000 |
| Brando Pictures Limited | London | 2014 |
| Brandon Allotments Limited | Brandon | 2000 |
| Brandon Bethell Ltd | London | 2024 |
| Brandon Carr Racing Limited | Sheffield | 2020 |
| Brandon Golf Limited | Hartlepool | 2021 |
| Brandon Kelly Limited | Glasgow | 2024 |
| Brandon Racing Limited | Northampton | 2000 |
| Brandonblanefitness Ltd | Derby | 2023 |
| Brands Hatch Circuits Limited | West Kingsdown | 2003 |
| Brands Hatch Investments Limited | West Kingsdown | 2003 |
| Brands Hatch Leisure Limited | West Kingsdown | 2003 |
| Brands Hatch Limited | West Kingsdown | 2003 |