| BUX Limited | Preston | 2012 |
| Buxbaum Loggia Limited | London | 2005 |
| Buxfam Limited | Scarborough | 2024 |
| Buxoplas Group Limited | Bradwell, Hope Valley | 2022 |
| Buxoplas Pipe Systems Group Limited | Hope Valley | 2022 |
| Buxton + Mcnulty Mechanical Services (2012) Limited | Erith | 2012 |
| Buxton Beresford Financial Planning Ltd | Norwich | 2011 |
| Buxton Butchers Holdings Ltd | Bristol | 2022 |
| Buxton Commercial Holdings Limited | Stowmarket | 2026 |
| Buxton Consortium Limited | Buxton | 2005 |
| Buxton Financial Intermediary Services Limited | Stockport | 2016 |
| Buxton Lane Mortgage Services Ltd | Chadderton | 2005 |
| Buxton Printing Company Limited(The) | | 1939 |
| Buxton Printing Group Limited | Buxton | 2023 |
| Buxton Water Holdings Ltd | Lytham St. Annes | 2020 |
| Buy Sell FX Ltd | Ruislip, | 2025 |
| Buy the DIP Ltd | Ilford | 2021 |
| Buy the Mind Limited | King'S Lynn | 2012 |
| Buy to LET Capital Limited | Brighton | 2021 |
| Buy to LET Direct Limited | Leeds | 2008 |
| Buy to LET Loans Limited | Brighton | 2021 |
| Buy Whole Foods Family Co. Ltd | Ramsgate | 2022 |
| Buy Whole Foods Online Holdings Ltd | Ramsgate | 2021 |
| Buyaparcel Limited | Lowestoft | 2014 |
| Buybrand Limited | Chatham | 2014 |
| Buying Should BE FUN Limited | Cranleigh | 2011 |
| Buyit Finance Ltd | Manchester | 2023 |
| Buyline Ltd | Gloucester | 2018 |
| Buyrite Holdings Limited | Coalville | 2019 |
| Buyside Partners Ltd | London | 2023 |
| Buysure Trust & Insurance Services GB Ltd | Wirral | 2003 |
| Buytolet Limited | Colchester | 2015 |
| Buzios Holdings Ltd | Kingston Upon Thames | 2023 |
| Buzios Limited | London | 2025 |
| Buzwair Limited | Doncaster | 2026 |
| Buzz Brokers Limited | Brighton | 2025 |
| Buzz Business Limited | Manchester | 2024 |
| Buzz Capital Finance Limited | Brighton | 2018 |
| Buzz Capital Property Finance Limited | Brighton | 2019 |
| Buzz Co Group Limited | London | 2025 |
| Buzz Financial Ltd | Weston-Super-Mare | 2013 |
| Buzz Futures Limited | London | 2010 |
| Buzz GP Ltd | London | 2022 |
| Buzz Holdco Limited | Oxfordshire | 2026 |
| Buzz IFA Limited | Berkshire | 2003 |
| Buzz Monkey Limited | Enfield | 2017 |
| Buzz Mortgages Limited | Ely | 2024 |
| Buzz Supplies Holdings Limited | Bishop'S Stortford | 2026 |
| Buzz Wireless Networks Holdings Ltd | Doncaster | 2023 |
| Buzzacott Financial Services Limited | London | 1984 |
| Buzzoole Holdings Limited | London | 2016 |
| Buzzy Group Limited | Bradford | 2022 |
| BV & Partners Ltd | London | 2023 |
| BV Alpha Systems Limited | Canterbury | 2020 |
| BV Capital Advisors Ltd | London | 2024 |
| BV Group Holdings Limited | Stockport | 2024 |
| BV Holdings Ltd | Alton | 2025 |
| BV Propco III Limited | London | 2021 |
| BV Property Limited | Lutterworth | 2016 |
| BV Region Limited | Leamington Spa | 2019 |
| BV Services Limited | Bury St Edmunds | 1995 |
| BV10 Limited | Colchester | 2019 |
| BV100 Limited | Colchester | 2019 |
| BV101 Limited | Colchester | 2019 |
| BV102 Limited | Colchester | 2022 |
| BV103 Limited | Colchester | 2023 |
| BV104 Limited | Colchester | 2025 |
| BV7 Investments Limited | Tiverton | 2025 |
| BV8 Limited | Colchester | 2019 |
| BV9 Limited | London | 2019 |
| BVA Group Limited | Manchester | 2023 |
| BVA Infinite Payment Solutions Ltd | Kingston Upon Thames | 2015 |
| BVC Investments Limited | Rochester | 2022 |
| BVD Investments Limited | Derby | 2021 |
| Bvest Limited | Perranporth | 2011 |
| Bvgn Holdings Limited | Newcastle | 2025 |
| Bvgne | Ripon | 2025 |
| Bvgrp Ltd | Stoke-On-Trent | 2023 |
| BVI Group Limited | Warwickshire | 2021 |
| BVI Holdings Kensington Limited | Warwickshire | 2018 |
| BVI Holdings Limited | Warwickshire | 2018 |
| BVI Holdings Mayfair Limited | Warwickshire | 2019 |
| BVI Knightsbridge Limited | Warwickshire | 2018 |
| BVI Ovington Limited | Warwickshire | 2018 |
| BVL Bidco Limited | Pudsey | 2025 |
| BVL Capital 2021 Limited | London | 2020 |
| BVL Capital F3 Limited | London | 2021 |
| BVL Group Holding Limited | Dagenham | 2024 |
| BVL Holdings Limited | Bury | 2016 |
| BVL Investments Holdings Limited | Acton | 2020 |
| BVL Midco Limited | Pudsey | 2025 |
| BVL Services Ltd | London | 2020 |
| BVL Topco Limited | Pudsey | 2025 |
| BVM Group Holdings UK Ltd | Wrexham | 2024 |
| Bvnk DLT (UK) Limited | London | 2021 |
| Bvnk DLT Group (UK) Limited | London | 2020 |
| Bvnk Group Services (UK) Limited | London | 2021 |
| Bvnk Holdings Limited | London | 2022 |
| Bvnk Services Limited | London | 2021 |
| BVO Groep Limited | Carcroft | 2005 |