| Brittain Mortgage Consultancy Ltd | Towcester | 2015 |
| Britten Enterprises Ltd | Hatfield | 2013 |
| Brittens Music Limited | Tunbridge Wells | 2008 |
| Britton Investment Management Ltd | London | 2026 |
| Britton Mortgages Limited | Sandbach | 2025 |
| Brittonian Limited | Boston | 2017 |
| Britvista Property Limited | London | 2023 |
| Britwell Enterprises Ltd | Reading | 2023 |
| Britz Holdings Ltd | London | 2024 |
| Britza Limited | London | 2024 |
| Briway Investment Ltd | Northampton | 2017 |
| Briway Management Ltd | Northampton | 2017 |
| Brix Finance Ltd | London | 2025 |
| Brix Group Ltd | Warrington | 2023 |
| Brix Mortgages Limited | Canterbury | 2025 |
| Brixey Holdings Limited | Bournemouth | 2024 |
| Brixtech Group Limited | Penarth | 2021 |
| Brixton Bizness Cafe Limited | Manchester | 2003 |
| Brizman Advisors Limited | Rosewell | 2023 |
| Brjb Holdings Limited | Brentwood | 2023 |
| Brjo Trades Ltd | Stanmore | 2025 |
| BRK Care Holdings Limited | Birmingham | 2022 |
| BRK ENG Holdings Ltd | Scarborough | 2025 |
| BRK Holdings Leamington Limited | Coventry | 2024 |
| Brkly Global Limited | Cardiff | 2024 |
| Brkt Investments Ltd | Grangemouth | 2026 |
| Brkw Solutions Limited | London | 2023 |
| BRL Partners Limited | Lutterworth | 2026 |
| Brly Limited | Forest Row | 2022 |
| BRM Capital Ltd | London | 2019 |
| BRM Consultancy ( Scotland ) Ltd | Glasgow | 2024 |
| BRM Group Ltd | Londonderry | 2020 |
| BRM Holding Co Limited | Kendal | 2026 |
| BRM Solutions Ltd | Manchester | 2021 |
| Brmco (257) Limited | Chesterfield | 2022 |
| BRN Building Services Limited | Bangor | 2019 |
| BRN Finco Limited | London | 2023 |
| BRO 001 Ltd | London | 2025 |
| BRO 002 Ltd | London | 2025 |
| BRO Financial Solutions Ltd | Leven | 2024 |
| BRO Holdings Limited | Bilston | 2022 |
| BRO Hose Ltd | Portsmouth | 2024 |
| BRO Investment Group Limited | Liverpool | 2025 |
| BRO Well Holdings Limited | Newcastle Upon Tyne | 2025 |
| Bro.Fin.Med. Ltd | Beaconsfield | 2021 |
| Broad & Co. Wealth Management Limited | Leicester | 2014 |
| Broad Arrow Group UK Limited | London | 2022 |
| Broad Business Group Limited | Launceston | 2024 |
| Broad Capital Investments Limited | Manchester | 2014 |
| Broad Capital Trading Limited | Manchester | 2020 |
| Broad Energy Trading Limited | Manchester | 2017 |
| Broad Fintech Ltd | Cardiff | 2019 |
| Broad Fort (Holdings) Ltd | London | 2024 |
| Broad Group Holdings Limited | Chester | 2025 |
| Broad Insure Limited | London | 2017 |
| Broad Lane (Holdings) Limited | Coventry | 2021 |
| Broad Lane Kirkby Limited | Liverpool | 2024 |
| Broad Money Payment & Digital Services Limited | Grays | 2020 |
| Broad Mount Holdings Limited | Luton | 2025 |
| Broad Oak Finance Broker Ltd | Macclesfield | 2026 |
| Broad Oak Finance Limited | Stanmore | 1988 |
| Broad Oak Financial Solutions Limited | Redditch | 2023 |
| Broad Oak KM Limited | Stoke-On-Trent | 2013 |
| Broad Power Holdings Limited | Wimborne | 2022 |
| Broad Property Holdings Limited | Manchester | 2025 |
| Broad Reach Investment Management Services Limited | London | 2016 |
| Broad Spectrum Consulting Ltd | London | 2015 |
| Broad Street Asset Management Ltd | Chippenham | 2018 |
| Broad Street Finco Limited | London | 2022 |
| Broad Street International Credit Investments Limited | London | 2020 |
| Broad Street Investments ( Stamford ) Ltd | Sutton Coldfield | 2018 |
| Broad Street Real Estate Group Limited | Cheadle | 2016 |
| Broad Wealth Management Limited | Laurencekirk | 2009 |
| Broadacre Financial Management Ltd | York | 2013 |
| Broadacre House Ltd | Leicester | 2025 |
| Broadacres Holdings Ltd | London | 2018 |
| Broadale Investments Limited | Copmanthorpe | 2020 |
| Broadaxe Holdings Ltd | London | 2025 |
| Broadbased Accountax Consultants Ltd | London | 2023 |
| Broadbench Ltd | London | 2011 |
| Broadbill Consulting Ltd | Petworth | 2023 |
| Broadbranch Limited | Sale | 1976 |
| Broadburn Capital | Aberlour | 2025 |
| Broadcast Decisions Limited | Horsham | 1999 |
| Broadcast Insurance Brokers Ltd | St. Ives | 2023 |
| Broadcasting Investments Group Limited | London | 2012 |
| Broadcastmed Limited | Knutsford | 2023 |
| Broadfast (Holdings) Limited | Birmingham | 2002 |
| Broadfield Business Park Ltd | Altrincham | 2025 |
| Broadfield House Investment Co Ltd | Kent | 2026 |
| Broadfields Global Holdings Limited | Cardiff | 2026 |
| Broadfields Group Ltd | Potters Bar | 2026 |
| Broadgate 1960 Company Limited | Kingston Upon Thames | 2017 |
| Broadgate Affordable Limited | Spalding | 2005 |
| Broadgate Arch Holdings Ltd | Thorpe St. Andrew, Norwich | 2018 |
| Broadgate Estates Limited | London | 2004 |
| Broadgate Financial Consulting Ltd | Creeting St.Mary | 2010 |
| Broadgate International Limited | Edgware | 2005 |
| Broadgate Search Holdings Limited | London | 2018 |
| Broadgate Strategic Ventures Ltd | London | 2025 |