| Belmont Group Holdings Ltd | Luton | 2021 |
| Belmont Healthcare (Lincs) Limited | Redditch | 2026 |
| Belmont Healthcare Group 1 Limited | Redditch | 2022 |
| Belmont Healthcare Group 2 Limited | Redditch | 2025 |
| Belmont Healthcare Management Limited | Redditch | 2019 |
| Belmont Holdings Group Limited | London | 2026 |
| Belmont Holdings Trading Group Limited | St. Ives | 2025 |
| Belmont House Investments | Birmingham | 2017 |
| Belmont Investment (UK) Limited | Esher | 2013 |
| Belmont Investment Holdings Ltd | Bromley | 2019 |
| Belmont Medical (UK) Holdings Limited | Altrincham | 2018 |
| Belmont Park Holdings Ltd | Cheltenham | 2021 |
| Belmont Regency (Insurance Services) Ltd | Derby | 2009 |
| Belmont Road Ventures Limited | Windlesham | 2025 |
| Belmont Thornton Limited | London | 2008 |
| Belmore Financial Planning Ltd | Telford | 2020 |
| Belmore Holding Ltd | Enniskillen | 2021 |
| Belmore Property Developments Ltd | Belfast | 2021 |
| Belmore Wood Limited | Norwich | 2010 |
| Beloo Limited | London | 2019 |
| Beloura Ltd | Leeds | 2025 |
| Below Wensted Limited | Ellesmere Port | 2022 |
| Belowi Invest Ltd | London | 2005 |
| Belper Freemasons Hall (Property) Ltd | Belper | 2024 |
| Belper Independent Financial Solutions Limited | Chorley | 2012 |
| Belrock Holdings Limited | London | 2024 |
| Belron - UK Pension Plan Trustees Limited | Bedford | 2011 |
| Belron UK Finance PLC | Egham | 2024 |
| Belron UK Holdings Limited | Egham | 2024 |
| Belrose Holdings Limited | Nottingham | 2021 |
| Belsco 1039 Limited | Edinburgh | 2009 |
| Belsey Investment Partners Ltd | Norwich | 2024 |
| Belsfield Holdco Limited | Carlisle | 2022 |
| Belsford Holdings Ltd | Totnes | 2022 |
| Belsio Ltd | London | 2024 |
| Belsize Brands Holdings Limited | London | 2025 |
| Belsize Holdings Ltd | London | 2017 |
| Belsize Investors Limited | London | 2020 |
| Belstone Group Limited | London | 2025 |
| Beltane Holdings Limited | London | 2020 |
| Beltap Capital Limited | Rainham | 2020 |
| Belted Galloway Limited | London | 2019 |
| Belting & Mechanical Leather Company Employee Ownership Trust Limited | Glasgow | 2025 |
| Beltline Capital Ltd | London | 2023 |
| Beltline Holdings 2 Ltd | Manchester | 2024 |
| Belton Farm Group Limited | Whitchurch | 2013 |
| Belton Massey Limited | Mansfield | 2015 |
| Beltoy Associates Limited | Enniskillen | 2005 |
| Beltrae Partners Limited | Belfast | 2003 |
| Beltrami & Company Holdings Limited | Glasgow | 2021 |
| Beltus Limited | Witney | 2025 |
| Belvadere Ltd | Manchester | 2004 |
| Belvedere Accountancy Limited | London | 2019 |
| Belvedere Advisory Holdings Ltd | Harrow | 2021 |
| Belvedere ASH Limited | West Yorkshire | 2026 |
| Belvedere Care Group Holdings Ltd | Heanor | 2025 |
| Belvedere Corporation Limited | Buckshaw Village | 2006 |
| Belvedere Hill Ltd | Sutton | 2005 |
| Belvedere Investments Limited | Sunderland | 2014 |
| Belvedere Peak Limited | London | 2022 |
| Belvedere Wealth Limited | Swansea | 2019 |
| Belvedere-B (Holdings) Limited | Morecambe | 2025 |
| Belvide Finance Limited | Wolverhampton | 2018 |
| Belvidere Court Holdings Limited | Coventry | 2025 |
| Belvidere Financial Ltd | Shrewsbury | 2017 |
| Belvidere Holdings Limited | Edinburgh | 2025 |
| Belvidere Knighton Limited | Sidmouth | 2014 |
| Belvidere Residential Care Home Property Limited | Coventry | 2021 |
| Belvin Holdings Limited | Nettleham | 2021 |
| Belvoir Equity Funding Limited | Watford | 1994 |
| Belvoir Group Limited | Bournemouth | 2011 |
| Belvoire Consulting Limited | London | 2018 |
| Belward Investments Limited | Ripon | 2019 |
| Belwight TOO Ltd | Wetherby | 2022 |
| Belyaan Holdings Ltd | Rotherham | 2026 |
| Belyfted Limited | Dagenham | 2018 |
| Belyn Financial Services Limited | Llandudno Junction | 2011 |
| BEM Associates Ltd | London | 2025 |
| BEM Family Limited | Blackpool | 2025 |
| BEM Group Limited | Exeter | 2020 |
| Bemar Properties Limited | Dore | 2025 |
| Bembee Global Multiple Service Ltd | London | 2025 |
| Bembridge & Osborne Holdings Limited | Teddington | 2024 |
| Bembridge Consultancy Solutions Limited | Bourne | 2002 |
| Bemc WHV Limited | London | 2026 |
| Bemi Investments Limited | Sutton Coldfield | 2023 |
| Bemkat Holdings Limited | London | 2001 |
| Bempah Investment Management Ltd | London | 2024 |
| BEN & BOO (Holdings) Limited | Malmesbury | 2022 |
| BEN Adams Ltd | Swansea | 2015 |
| BEN AMP Holdings Limited | Harrow | 2012 |
| BEN and Lisa Simpson Holdings Ltd | Walsall | 2024 |
| BEN ARI Holdings Ltd | Manchester | 2025 |
| BEN ARI Properties Limited | Loughton | 2026 |
| BEN Building EOT Limited | Edinburgh | 2024 |
| BEN Capital Limited | Worksop | 2024 |
| BEN Charles Durham F.S. Limited | Durham | 2009 |
| BEN Cluny Holdings Ltd | Skipton | 2019 |
| BEN Coverdale Property Services Ltd | Bishop Auckland | 2024 |
| BEN Financial Solutions Limited | Glasgow | 2019 |