| Beehive Asset Management Limited | Real estate | 2024 |
| Beehive Consulting Limited | Professional & scientific | 2017 |
| Beehive FTG Limited | Hospitality | 2022 |
| Beekay Ltd | Administrative & support | 2015 |
| Beel & Co Ltd | Real estate | 2023 |
| Beeland Controls Limited | Manufacturing | 2002 |
| Beeline Realisations Limited | Extraterritorial | 2007 |
| Beer Supply Limited | Wholesale & retail | 2009 |
| Beer's Beer Company Ltd | Hospitality | 2023 |
| Beerboss Limited | Hospitality | 2025 |
| Beermaster Ltd | Extraterritorial | 2010 |
| Beerstar Limited | Hospitality | 2022 |
| Bees Investments Limited | Administrative & support | 1946 |
| Beeseen Labs Ltd | Information & communication | 2025 |
| Beesla Construction Limited | Construction | 2025 |
| Beeston Autocare Ltd | Wholesale & retail | 2024 |
| Beeston Cars Ltd | Wholesale & retail | 2025 |
| Beeston Courier Ltd | Transport & logistics | 2024 |
| Beeston Crowns UK Ltd | Wholesale & retail | 2024 |
| Beeston Diye Ltd | Wholesale & retail | 2024 |
| Beeston Express 195 Ltd | Wholesale & retail | 2026 |
| Beeston Express Ltd | Wholesale & retail | 2024 |
| Beeston Hill Pharmacy Limited | Wholesale & retail | 2013 |
| Beeston Line Ltd | Transport & logistics | 2025 |
| Beeston Local Limited | Wholesale & retail | 2026 |
| Beeston Mart Limited | Wholesale & retail | 2021 |
| Beeston Mobile & Computer Ltd | Wholesale & retail | 2025 |
| Beeston Offlicence Ltd | Wholesale & retail | 2019 |
| Beeston One Stop Auto Centre Ltd | Wholesale & retail | 2017 |
| Beeston Stores Limited | Wholesale & retail | 2003 |
| Beet Properties Ltd | Real estate | 2019 |
| Beever Dental Technology Limited | Manufacturing | 2003 |
| Beeyond Impact Ltd | Agriculture & fishing | 2026 |
| Beff Properties Limited | Real estate | 2018 |
| Befor Ltd | Wholesale & retail | 2026 |
| Before Anything Else Ltd | Hospitality | 2025 |
| Befuddle Limited | Information & communication | 2007 |
| Begee's Ltd | Real estate | 2022 |
| Begin Limited | Professional & scientific | 2018 |
| Begra Healthcare Services Ltd | Other services | 2020 |
| Behold ME Limited | Health & social care | 2015 |
| Behsa Limited | Wholesale & retail | 2008 |
| Beijer REF Refrigerants Limited | Wholesale & retail | 2019 |
| Beilby Grange Properties Limited | Financial services | 2021 |
| Beishon Engineering Ltd | Professional & scientific | 2025 |
| Beit Construction Ltd | Construction | 2024 |
| Bekaa Services Limited | Extraterritorial | 2024 |
| BEL Mercator Limited | Professional & scientific | 1999 |
| BEL Vestito Boutique Ltd | Wholesale & retail | 2024 |
| Bela Donaa Limited | Wholesale & retail | 2022 |
| Belanna Ltd | Information & communication | 2018 |
| Belat Ltd | Wholesale & retail | 2020 |
| Beleshi Ltd | Hospitality | 2025 |
| Belford Investments 2014 | Financial services | 2015 |
| Belford JLB Projects | Financial services | 2021 |
| Belgabar (UK) Limited | Hospitality | 2002 |
| Belgrade Insulations Limited | Construction | 1976 |
| Belgrade Trading Limited | Professional & scientific | 2009 |
| Belgravia Living (Burlington House) Limited | Real estate | 2016 |
| Belgravia Living Group Limited | Professional & scientific | 2015 |
| Belgravia Umbrella Professional Limited | Administrative & support | 2019 |
| Belino UK Limited | Wholesale & retail | 2026 |
| Belivat Bidco Limited | Administrative & support | 2025 |
| Belivat Holdco Limited | Administrative & support | 2025 |
| Belivat Hydro Investments Limited | Financial services | 2016 |
| Belks Inns Limited | Hospitality | 2023 |
| Bell Catering Limited | Hospitality | 2017 |
| Bell Hartwell Limited | Financial services | 2021 |
| Bell M&E Solutions Ltd | Administrative & support | 2025 |
| Bell Structural Engineering Ltd | Professional & scientific | 2020 |
| Bella Cafe Leeds Limited | Hospitality | 2024 |
| Bella Nails Beauty Spa Ltd | Other services | 2024 |
| Bella Pizza (Bentley) Limited | Hospitality | 2014 |
| Bella Pizza (Doncaster) Limited | Hospitality | 2011 |
| Bella Regia Leeds Ltd | Hospitality | 2025 |
| Bella Roma Ltd | Hospitality | 2025 |
| Bella Supply Ltd | Administrative & support | 2021 |
| Bella Vista Property Limited | Construction | 2021 |
| Bella's Baskets Limited | Manufacturing | 2025 |
| Bellafricana UK Limited | Wholesale & retail | 2023 |
| Bellagio Investments Limited | Professional & scientific | 2014 |
| Bellanna Ltd | Health & social care | 2025 |
| Bellario UK Limited | Real estate | 2018 |
| Bellas Deli Ltd | Wholesale & retail | 2025 |
| Bellawood Interiors Limited | Manufacturing | 2025 |
| Bellawood Products Limited | Manufacturing | 2019 |
| Belle Beauty Salon Ltd | Other services | 2025 |
| Belle Isle Dental Ltd | Health & social care | 2014 |
| Belle Isle Fisheries (Leeds) Limited | Hospitality | 2025 |
| Belle Isle Fisheries Limited | Hospitality | 2024 |
| Belle Skin Ltd | Health & social care | 2022 |
| Belleva Ltd | Wholesale & retail | 2025 |
| Bellgold Consulting Ltd | Information & communication | 2022 |
| Bellgrillz Limited | Hospitality | 2025 |
| Bellini Group Limited | Hospitality | 2019 |
| Bellis Acquisition Company PLC | Financial services | 2020 |
| Bellis Financial Investments 4 Limited | Financial services | 2024 |
| Bellis Finco PLC | Professional & scientific | 2020 |
| Bellis Noncore 1 Limited | Financial services | 2020 |
| Bellis Noncore 2 Limited | Financial services | 2020 |