| Brep Asia II Semi UK Holdco Limited | London | 2020 |
| Brep Asia II Sydney Office UK Holdco Limited | London | 2018 |
| Brep Student Ltd | Henley-On-Thames | 2017 |
| Brep UK Holdings Limited | London | 2015 |
| Brereton Future Finance Ltd | Witham | 2026 |
| Brereton Group Limited | Exeter | 2020 |
| Brereton Jackson Financial Limited | Halstead | 2015 |
| Brereton Services Limited | Derbyshire | 2007 |
| Breslau Limited | London | 2021 |
| Breslin Holdings Limited | Gravesend | 2025 |
| Breslins Financial Planning Ltd | Sutton Coldfield | 2025 |
| Bresmed Holdings Limited | London | 2020 |
| Bress Holdings Ltd | Bury St. Edmunds | 2021 |
| Bressenden III Limited | London | 2025 |
| Bretal Limited | Glasgow | 2021 |
| Bretema Capital Advisors Limited | London | 2007 |
| Bretherton Estate Limited | St. Albans | 2025 |
| Bretherton Homes Limited | Preston | 2006 |
| Bretland Capital Limited | Bishop'S Stortford | 2025 |
| Breton House Ltd | London | 2025 |
| Bretsy Limited | Rothwell | 2026 |
| Brett Burrows Limited | Market Harborough | 2024 |
| Brett Capital Ltd | Swindon | 2025 |
| Brett Holdings Ltd | Swadlincote | 2024 |
| Brett Investment Limited | Borders | 2003 |
| Brett James Consultancy Ltd | Tamworth | 2019 |
| Brett Noble Ltd | London | 2024 |
| Brett Owen Investments Limited | Beaconsfield | 2020 |
| Brett Palos Capital Limited | London | 2010 |
| Brett Palos Capital USA Limited | London | 2016 |
| Brett Palos Investments NO.2 Limited | London | 2020 |
| Brett Palos Investments NO.3 Limited | London | 2020 |
| Brett Palos Investments NO.4 Limited | London | 2021 |
| Brett Palos Investments NO.5 Limited | London | 2021 |
| Brett Pension Trustee Limited | Canterbury | 2011 |
| Brett Property Holdings Ltd | Swindon | 2022 |
| Brett Research Ltd | London | 2024 |
| Brettell Holdings Ltd | Amblecote | 2022 |
| Bretti UN Limited | Matlock | 2024 |
| Bretton Holdings Limited | Chippenham | 2018 |
| Bretton Woods Holdings Limited | London | 2018 |
| Bretton Woods International Limited | London | 2015 |
| Breukr Group Ltd | Coventry | 2026 |
| Brevan Howard Asset Management Services Limited | Reading | 2017 |
| Brevan Howard Investment Management Limited | London | 2024 |
| Breve Technology Holdings Limited | Huntingdon | 2020 |
| Brew Brew Holdings Limited | London | 2023 |
| Brew Holdings Ltd | London | 2021 |
| Brew Inc. Ltd | Sutton Coldfield | 2024 |
| Brew Propco Ltd | London | 2021 |
| Brew Twenty Three Group Limited | Sutton Coldfield | 2024 |
| Brewama Limited | Newtown | 2017 |
| Brewer Manufacturing Limited | Chichester | 2018 |
| Brewer Mortgage Advice Limited | Oldham | 2024 |
| Brewer Street Holdings Limited | London | 2019 |
| Brewers of Nuneham Limited | Poole | 1961 |
| Brewhouse Equity Partners Ltd | Winchester | 2025 |
| Brewin 1762 Nominees Limited | London | 2012 |
| Brewin Dolphin Limited | London | 1987 |
| Brewin Dolphin MP | London | 2003 |
| Brewin Nominees Limited | London | 1970 |
| Brewin Ventures Ltd | Shifnal | 2026 |
| Brewing Brothers Holdings Limited | Hastings | 2022 |
| Brewins Family Investment Company Limited | Harrogate | 2023 |
| Brewlabs Holdings Ltd | Hoddesdon | 2017 |
| Brewood Holdings Limited | Stafford | 2026 |
| Breworks Ltd | Pickering | 2014 |
| Brewster Bros. Ltd | Livingston | 2017 |
| Brewster Financial Planning Limited | Gravesend | 2009 |
| Brewster Investment Group Ltd | Sheffield | 2020 |
| Brex Fintech UK Limited | Altrincham | 2019 |
| Brex Technologies UK Limited | Altrincham | 2023 |
| Brexa Limited | Borehamwood | 2001 |
| Brexit Movers Limited | Omagh | 2025 |
| Breyer Holdings Limited | London | 2008 |
| BRF Consultancy Ltd | Bishop'S Stortford | 2024 |
| BRF Group Limited | Nottingham | 2020 |
| BRG Capital Ltd | London | 2026 |
| BRG Enterprise Solutions (Holdings) Limited | London | 2022 |
| BRG Holdings (Lincoln) Limited | Lincoln | 2020 |
| BRG Investment Holdings Limited | Dronfield | 2025 |
| BRH Holdings Limited | Kidwelly | 2023 |
| Brhl Master UK Holdings Limited | London | 2024 |
| Brhl UK Topco Limited | London | 2024 |
| Brhr Holdings Limited | Bradford | 2023 |
| BRI Bluerock Investment Ltd | London | 2024 |
| BRI Investments Limited | Lichfield | 2020 |
| BRI Wealth Management PLC | Meriden Green Business Park | 1962 |
| Bri-Chez Haulage Limited | Sudbury | 2020 |
| Brian Bell Holdings Limited | Swindon | 2026 |
| Brian Carter Ltd | Guildford | 2019 |
| Brian Clendinning Limited | Downpatrick | 2023 |
| Brian Close Wealth Management Limited | Falkirk | 2019 |
| Brian Davies Insurance Consultants Ltd | Hassocks | 1999 |
| Brian Dent Group Limited | Clitheroe | 2025 |
| Brian Fearon SG Holdings Limited | Newry | 2023 |
| Brian Fudge Limited | Petworth | 2015 |
| Brian Gale Holdings Limited | Redhill | 2021 |
| Brian H Day Limited | Sevenoaks | 1951 |
| Brian J Hyman (Holdings) Limited | Borehamwood | 1970 |