| Britpack 3PL Ltd | Weston-Super-Mare | 2025 |
| Brits Money Ltd | Newark | 2016 |
| Britsafe EOT Limited | York | 2022 |
| Britsail Limited | Alloa | 2011 |
| Britscan Developments Limited | | 1986 |
| Britsecurepay Ltd | London | 2026 |
| Britserve Solutions Ltd | Manchester | 2025 |
| Britson Electrical Limited | Hailsham | 2015 |
| Britstone Ltd | Newark | 2022 |
| Brittan Chamberlain Nichols (Joint Enterprise) Ltd | London | 2019 |
| Brittax Accountancy Ltd | Northampton | 2026 |
| Brittechsync Ltd | London | 2026 |
| Brittle Limited | Stoke On Trent | 1998 |
| Brittle Motor Company Limited | Stoke On Trent | 1998 |
| Britvibe Media Ltd | London | 2026 |
| Britwave Studios Ltd | London | 2026 |
| Brivon Limited | Aberdeen | 2014 |
| Brixham Heights Investments Limited | London | 2025 |
| Brixham Heights Limited | London | 2025 |
| Brixnwata Limited | Weybridge | 2011 |
| Brixon Manufacturing (U.K.) Limited | Ewhurst | 1993 |
| Brixter Probuild Ltd | Hassocks | 2025 |
| Brixton Central Limited | London | 2017 |
| Brixworth Brewery Company Ltd | Northampton | 2018 |
| BRK Trade Co., Ltd | London | 2023 |
| Brkayt Yacht Ltd | London | 2025 |
| Brkhd Ltd | Dinnington | 2025 |
| BRM Solicitors Limited | Chesterfield | 2013 |
| Brmco (262) Limited | Sheffield | 2025 |
| BRN Marine Limited | London | 2025 |
| BRN115 Limited | London | 2015 |
| BRO OG Kantstein Service Limited | London | 2009 |
| BRO Properties Ltd | Lisburn | 2016 |
| Broad & Hurst Limited | Walsall | 2023 |
| Broad Eyecare Ltd | Shipley | 2014 |
| Broad FEN Ltd | Norwich | 2020 |
| Broad Oak Events Limited | Stoke-On-Trent | 2019 |
| Broad Oak Motors Limited | Whitchurch | 2024 |
| Broad One Limited | Manchester | 2024 |
| Broad Street 2026 Limited | Spalding | 2000 |
| Broad Street Securities Limited | Rugby | 1977 |
| Broad Two Limited | Manchester | 2024 |
| Broad Vision Network Limited | Bridgwater | 2023 |
| Broadacre Builders Limited | Kates Hill Dudley | 2002 |
| Broadacre Limited | New Romney | 2003 |
| Broadale Limited | Copmanthorpe | 2016 |
| Broadaxe Developments Ltd | Ludlow | 2023 |
| Broadband Buyer Limited | Milton Keynes | 2008 |
| Broadband UN Limited | Swansea | 2013 |
| Broadbean Digital Ltd | Tetbury | 2012 |
| Broadbent Services Limited | Oldham | 2019 |
| Broadcast Experts Limited | Ashford | 2009 |
| Broadcast Relay Service (Overseas) Limited | Crawley | 1947 |
| Broadcast.London Ltd | London | 2024 |
| Broader Industry Co., Ltd. | London | 2018 |
| Broader Visions Limited | London | 2013 |
| Broadfield Properties Limited | Sheffield | 2008 |
| Broadfield Securities Limited | Torquay | 1960 |
| Broadgate Holdings Ltd | Bradford | 2022 |
| Broadheath Day Nursery Limited | Worcester | 2020 |
| Broadhill Developments Limited | Birmingham | 1988 |
| Broadhurst Clarkson & Fuller Limited | Tonbridge | 2016 |
| Broadhurst Electrical Limited | Stowmarket | 2018 |
| Broadland Nominees Limited | London | 2002 |
| Broadland Properties Trading Limited | Scarborough | 2017 |
| Broadland Renewable Construction Limited | Scarborough | 2012 |
| Broadland Services Limited | Norwich | 1998 |
| Broadlea Developments Limited | Oldham | 2013 |
| Broadleaf Flooring Ltd | Ammanford | 2020 |
| Broadmark Way Limited | Bognor Regis | 2013 |
| Broadmeadow Limited | Salford | 2001 |
| Broadmeadows 1955 Limited | Alfreton | 2014 |
| Broadoak Building Isca Limited | Exeter | 2011 |
| Broadpark Court Management Company (Torquay) Limited | Torquay | 2000 |
| Broadpath General Trading Ltd | Manchester | 2026 |
| Broads Marina Ltd | Norwich | 2019 |
| Broadside Marketing Limited | South Shields | 2017 |
| Broadside Sailing Ltd | Norwich | 2025 |
| Broadspin Limited | Norwich | 2017 |
| Broadstairs Leisure Limited | Kent | 2006 |
| Broadstone Media Ltd | Newport | 2018 |
| Broadsword Pest Control Limited | Basingstoke | 2016 |
| Broadsword Ventures Ltd | London | 2025 |
| Broadtrec Prospective Co., Ltd. | Beckenham | 2014 |
| Broadview Partners Limited | Penrith | 2016 |
| Broadwake Limited | Whitley Bay | 1986 |
| Broadwalk Holdings Limited | Hoddesdon | 2009 |
| Broadwater Farm Limited | West Malling | 2022 |
| Broadwater Group Ltd | Wotton-Under-Edge | 2015 |
| Broadwater Hundred Limited | Letchworth Garden City | 2020 |
| Broadwater Limousines Limited | Sutton Coldfield | 1974 |
| Broadway Entertainment Network Limited | London | 2010 |
| Broadway Express Leicester Ltd | Leicester | 2024 |
| Broadway Fields Residents Management Company Limited | High Wycombe | 2006 |
| Broadway Financial Planning Ltd | Nottingham | 1994 |
| Broadway Financial Services Ltd | Tamworth | 2013 |
| Broadway Heights 1962 Limited | Maidstone | 2015 |
| Broadway Hill Limited | Mitcham | 2019 |
| Broadway Nominees Limited | London | 2007 |
| Broadway Properties (Southend) Limited | Basildon | 2021 |