| Beauty North Group Ltd | Northwich | 2026 |
| Beauty Spot Holdings Limited | Shipley | 2017 |
| Beauty Studio MGT Holdings Limited | Keele | 2026 |
| Beauty Tonic Holdings Limited | Chester | 2017 |
| Beautyconnect Holdings Limited | London | 2022 |
| Beautysure Insurance Services Limited | Lane Pudsey | 1973 |
| Beauvallon Capital Limited | London | 2024 |
| Beaver and Butterfly Holdings | Bowdon | 2024 |
| Beaver Capital Ltd. | London | 2000 |
| Beaver Group Ltd | Hertford | 2023 |
| Beaverbank Holdings Limited | Edinburgh | 2024 |
| Beavertrades Ltd | London | 2025 |
| Beavis Morgan 360 Holdings Limited | London | 2018 |
| Beazer Group Limited | York | 1980 |
| Beazer Limited | Maidenhead | 1968 |
| Beazfx Ltd | Abingdon | 2025 |
| Beazley Bermuda Holdings Limited | London | 2025 |
| Beazley Corporate Member (NO. 3) Ltd | London | 2014 |
| Beazley Corporate Member (NO. 6) Ltd | London | 2014 |
| Beazley Corporate Member (NO.2) Ltd | London | 2012 |
| Beazley Furlonge Limited | London | 1985 |
| Beazley Group Limited | London | 2000 |
| Beazley Investments Limited | London | 1997 |
| Beazley Management Limited | London | 2004 |
| Beazley PLC | London | 2015 |
| Beazley Solutions Limited | London | 1997 |
| Beazley Staff Underwriting Limited | London | 2003 |
| Beazley Underwriting Limited | London | 2002 |
| Beazley Underwriting Services Limited | London | 2000 |
| BEB Capital Limited | Billingshurst | 2021 |
| BEB Holdings Limited | Manchester | 2025 |
| Bebc Holdings Ltd | Poole | 2026 |
| Bebesi Ugyvedi Iroda Ltd | Cardiff | 2025 |
| Bebo Renewables Ltd | London | 2020 |
| BEC (L&W) Limited | Barking | 2024 |
| BEC Construction Holdings Limited | Manston | 2018 |
| BEC Industries Ltd | Clydebank | 2023 |
| BEC Investments Limited | Harrogate | 2020 |
| BEC Plastics Holdings Limited | Clydebank | 2019 |
| Becchetti Group Ltd | Derby | 2022 |
| Beccles Carpet Centre Holdings Limited | Great Yarmouth | 2022 |
| Becco UK MGA Limited | London | 2024 |
| Beccola Limited | Cheadle | 2016 |
| Becerra Cortes Investment Partners Ltd | Sheffield | 2025 |
| Bechard Legacy Limited | Chobham | 2024 |
| Bechtel Enka UK Limited | London | 2015 |
| Bechtel Fabrication Limited | London | 2024 |
| Bechtel Holdings Limited | London | 1991 |
| Bechtel Nuclear Power Company Limited | London | 2017 |
| Bechto Limited | Weybridge | 2016 |
| Beck & Pollitzer Engineering Holdings Ltd. | Burton-On-Trent | 1998 |
| Beck Capital Limited | Beckenham | 2019 |
| Beck Evans Holdings Limited | London | 2021 |
| Beck Holdings Limited | Hunmanby | 1995 |
| Beck Products Holdings Ltd | Hereford | 2021 |
| Beck Property Finance Limited | Sidcup | 2020 |
| Beck Wealth Management Ltd | Benfleet | 2016 |
| Beck Wind Holdings Limited | Newark | 2013 |
| Beckenham Engineering Group EOT Limited | Congleton | 2025 |
| Beckenham Manor Ltd | South Croydon | 2024 |
| Beckenham Park Holdings Limited | London | 2020 |
| Beckenreid Limited | Kendal | 2017 |
| Becker and Company (Alpha Agri One) Ltd | Tunbridge Wells | 2025 |
| Becker Bidco Limited | Bilston | 2021 |
| Becker RE Group Ltd | Nottingham | 2025 |
| Becker Volt Group Ltd | Nottingham | 2025 |
| Beckerman-Palm Limited | London | 2008 |
| Becket Holdings Ltd | Canterbury | 2017 |
| Becket Insurance Services Limited | Kent | 1989 |
| Beckett & Associates Ltd | Portaferry | 2012 |
| Beckett Asset Management Limited | Norwich | 1993 |
| Beckett Family Holdings Limited | Stafford | 2026 |
| Beckett Financial Services Limited | Bury St Edmunds | 1987 |
| Beckett Holdings Limited | Great Yarmouth | 2017 |
| Beckett Jones Associates Limited | Nelson | 2014 |
| Beckett Philatelics Holdings Limited | Wolverhampton | 2019 |
| Beckett's Brook Holding Limited | Horsham | 2020 |
| Beckette & Co Ltd | West Kirby | 2025 |
| Becketts Bidco Limited | London | 2022 |
| Becketts Connect Ltd | Poulton Le Fylde | 2014 |
| Becketts Consultancy Services Ltd | Horwich | 2010 |
| Becketts Consulting Ltd | Huddersfield | 2020 |
| Becketts F S Ltd | Poulton Le Fylde | 2004 |
| Becketts Financial Group Ltd | Poulton Le Fylde | 2020 |
| Becketts Number 18 Limited | Tadworth | 2020 |
| Becketts Wealth Limited | Wilmslow | 2022 |
| Beckford & Lewis Financial Planning Ltd | Diss | 2019 |
| Beckford Advisory Ltd | Guildford | 2025 |
| Beckford Capital Limited | Wrotham Heath | 2025 |
| Beckford Family Holdings Ltd | Rayleigh | 2022 |
| Beckford Surveying Services Limited | Enfield | 2025 |
| Becki Ventures Limited | London | 2009 |
| Beckingtons Holdings Limited | York | 2015 |
| Beckland Holding Company Limited | Bury St Edmunds | 2023 |
| Beckley (Oak Tree) Management Limited | Rye | 2014 |
| Beckley Financial Planning Ltd | Newbury | 2019 |
| Beckley Group Limited | London | 2016 |
| Beckside Minerals Limited | Whitby | 2012 |
| Beckwith Healthcare Limited | Chesham | 2024 |
| Beckwith Holdings Ltd | Hove | 2019 |