| BROKER2U Limited | Chelmsford | 2014 |
| Brokerbility Holdings Limited | Leicester | 2009 |
| Brokerbility Information Gateway Limited | Leicester | 2007 |
| Brokerbility Limited | Leicester | 2004 |
| Brokerco Limited | Marlow | 2021 |
| Brokerex Ltd | Glasgow | 2024 |
| Brokerize Ltd | London | 2024 |
| Brokernet Ltd | Wimborne | 2021 |
| Brokers Broking Limited | London | 2025 |
| Brokers Direct.Net Ltd | Glasgow | 2004 |
| Brokers Incorporated Limited | Basildon | 2012 |
| Brokersure Ltd | Ipswich | 2009 |
| Brokersync Ltd | Stockton-On-Tees | 2025 |
| Brokertec Europe Limited | London | 1991 |
| Brokery Finance Ltd | Uxbridge | 2026 |
| Brokery Ltd | Uxbridge | 2024 |
| Brokes Lodge Estate Gardens Investment Limited | Reigate | 2021 |
| Brokura Limited | Halstead | 2026 |
| Broledco Investment Services Limited | Cardiff | 2024 |
| Brolen Holdings Limited | Basingstoke | 2018 |
| Brollachaun Holdings Limited | Richmond | 2022 |
| Brolly Ventures Ltd | London | 2025 |
| Brolly Works Securities Company Limited | Sutton Coldfield | 2010 |
| Brom MO Co Ltd | London | 2022 |
| Bromakin Holdings Limited | Loughborough | 2015 |
| Bromberg Consulting Limited | Knaresborough | 2024 |
| Bromborough Estates Holding Co Limited | Wellingborough | 2019 |
| Bromcraft Limited | Leckford | 1992 |
| Brome Holdings Ltd | Winchmore Hill | 2026 |
| Bromfelde Estates Ltd | Chichester | 2023 |
| Bromfield Farms Limited | Wigton | 2019 |
| Bromfield Holdings Limited | Barrow-Upon-Humber | 2023 |
| Bromfield Legal Holdings Ltd | Nuneaton | 2025 |
| Bromham Group Limited | Cambridge | 2005 |
| Bromham Holdings Limited | Bedford | 1958 |
| Bromham Management Limited | Hertford | 2018 |
| Bromige Limited | Forest Row | 2006 |
| Bromley and Harrison Capital Limited | London | 2024 |
| Bromley Bella Holdings Limited | Manchester | 2024 |
| Bromley Bella Limited | Manchester | 2024 |
| Bromley Best Resi Limited | Croydon | 2025 |
| Bromley by BOW Health Ltd | London | 2020 |
| Bromley Clackett Holdings Limited | Bognor Regis | 2023 |
| Bromley Investments Group Limited | Leeds | 2026 |
| Bromley Lane Investments Limited | Bishop'S Stortford | 2003 |
| Bromley RDG Group Limited | Barnsley | 2020 |
| Brompton 35 Limited | Witney | 2014 |
| Brompton 360 Limited | Peterborough | 2008 |
| Brompton Asset Finance Limited | Northampton | 2011 |
| Brompton Asset Management Group Limited | London | 2023 |
| Brompton Asset Management Holdings Limited | London | 2009 |
| Brompton Asset Management Limited | London | 2009 |
| Brompton Asset Management Services Ltd | London | 2016 |
| Brompton Developments Ltd | London | 2014 |
| Brompton Finance Limited | Kenley | 2016 |
| Brompton Gate Limited | London | 2024 |
| Brompton Grey Ltd | Harrow | 2020 |
| Brompton Holdco Ltd | London | 2021 |
| Brompton Investment Limited | London | 2009 |
| Brompton Investment Management Limited | London | 2009 |
| Brompton Partners Limited | London | 2010 |
| Brompton Property Management Holdings Limited | London | 2009 |
| Brompton Real Estate Holdings Limited | London | 2009 |
| Brompton Real Estate Investment Management Limited | London | 2009 |
| Brompton Technology Holdings Limited | London | 2018 |
| Brompton Views Letting Limited | Stourbridge | 2022 |
| Bromsgrove Printing Company Holdings Limited | Bromsgrove | 2020 |
| Bromsgrove Schools SPV (Holdings) Limited | Milton Keynes | 2005 |
| Bromstar Limited | Leicester | 2015 |
| Bromwall Limited | Hatfield | 1974 |
| Bromwell Holdings Limited | London | 2024 |
| Bromwest Limited | Oxford | 1954 |
| Bromwich Hardy Group Limited | Coventry | 2021 |
| Bromwich Holdings Ltd | York | 2026 |
| Bromyard Holdings Ltd | London | 2024 |
| Bron Developments Limited | London | 2014 |
| Bron-Yr-Aur Limited | Sheffield | 2016 |
| Broncroft Holdings Limited | Aylesbury | 2000 |
| Brondesbury Global Investments Limited | London | 2017 |
| Bronel Group Holdings Limited | Basildon | 2016 |
| Brones Ventures Ltd | North Shields | 2020 |
| Bronifach Ltd | Carmarthen | 2022 |
| Bronsens Financial Services Limited | Witney | 2008 |
| Bronson's Holding Limited | London | 2025 |
| Bronte Holdings Ltd | Halifax | 2024 |
| Bronte Industries, Ltd | Reading | 2019 |
| Bronte-Stewart Capital Ltd | London | 2019 |
| Bronwin and Abbey Holdings Limited | Ross-On-Wye | 2022 |
| Bronz Ninja Holdings Ltd | Preston | 2025 |
| Bronz Properties Ltd | Preston | 2023 |
| Bronze Holdings Limited | Stamford | 2017 |
| Bronze Services Europe Ltd | Scarborough | 2014 |
| Bronze UK Investment Ltd | Edmonton | 2017 |
| Bronze Vase Limited | Reigate | 2016 |
| Bronzerapid Limited | North Yorkshire | 2007 |
| Bronzewood Capital Ltd | London | 2025 |
| Bronzewood Group Holding Limited | London | 2025 |
| Brood Ventures Limited | London | 2024 |
| Brook & Churches Limited | West Sussex | 1985 |
| Brook & Co Group Ltd | Sheffield | 2026 |