| Beavs Properties Ltd | Real estate | 2025 |
| Beck Nadlan Limited | Real estate | 2016 |
| Beckford Resources Limited | Professional & scientific | 2019 |
| Bederech Kovod Limited | Other services | 2019 |
| Bedes Properties Limited | Extraterritorial | 2013 |
| Bedjid Ltd | Water & waste | 2025 |
| Bedlington Estates (2) Limited | Extraterritorial | 2026 |
| Bedlington Estates Limited | Extraterritorial | 2026 |
| Beds' Nest Properties Limited | Real estate | 2025 |
| BEE Cargo Limited | Transport & logistics | 2018 |
| BEE City Living Limited | Real estate | 2018 |
| BEE Inspired Sourcing Ltd | Real estate | 2025 |
| BEE Leisure Group Limited | Hospitality | 2024 |
| BEE Noir Manchester Ltd | Hospitality | 2025 |
| Beebot AI Ltd | Information & communication | 2018 |
| BEECARED4 Limited | Health & social care | 2018 |
| Beech Gardens Ltd | Real estate | 2025 |
| Beech Ltd | Real estate | 2021 |
| Beechwood Chairs Ltd | Manufacturing | 2020 |
| Beenest Children's Services Limited | Health & social care | 2026 |
| Beeston (Bolton) Management Company Limited | Households | 1982 |
| Beeston Royds Estate Company II Limited | Other services | 2018 |
| Beeston Royds Estate Company Limited | Extraterritorial | 2017 |
| Beeston Royds Estate Company NO. 2 Limited | Other services | 2018 |
| Beeston Royds Estate Company NO.3 Limited | Other services | 2019 |
| Beeyoutiful Boutique Ltd | Wholesale & retail | 2019 |
| Beikvei Hatzoin Club Limited | Health & social care | 2022 |
| Beis Chaya Mushka Ltd | Other services | 2015 |
| Beis Rochel MCR Girls' School Ltd | Education | 2019 |
| Beis Tefilloh Limited | Professional & scientific | 1994 |
| Beitar Limited | Real estate | 2013 |
| Bejealous Ltd | Professional & scientific | 2016 |
| Belgacom International Carrier Services UK Limited | Information & communication | 1998 |
| Belgrade Plaza Estates Ltd | Extraterritorial | 2017 |
| Belgrade Plaza Ltd | Extraterritorial | 2017 |
| Belissima Studios Limited | Professional & scientific | 2025 |
| Bella Hill Hair and Beauty Ltd | Other services | 2024 |
| Bellissimo Training CIC | Education | 2025 |
| Belmont Estate Management Limited | Real estate | 2008 |
| Belmont VH Limited | Professional & scientific | 2016 |
| Belteshazzar Ltd | Administrative & support | 2026 |
| Beltime Limited | Professional & scientific | 2020 |
| Belverdale Ltd | Real estate | 2014 |
| Belvoro Ltd | Wholesale & retail | 2025 |
| Belwick Estates Ltd | Real estate | 2026 |
| Bemnz Limited | Wholesale & retail | 2025 |
| Bemosh Ltd | Other services | 2013 |
| Bemzah Properties LLP | | 2009 |
| BEN Assets Limited | Real estate | 2026 |
| BEN Chai Estates Limited | Real estate | 2024 |
| BEN Swift Services Limited | Transport & logistics | 2025 |
| Benaa Group Ltd | Professional & scientific | 2026 |
| Benard Invest Ltd | Real estate | 2017 |
| Bencow Estates Ltd | Households | 2020 |
| Benfleet Properties Ltd | Real estate | 2022 |
| Bengo Estates Ltd | Real estate | 2022 |
| Benison (Nursery School) Limited | Education | 1989 |
| Beniyke Cleaning Services Ltd | Administrative & support | 2020 |
| Benneson Engineering Ltd | Construction | 2019 |
| Benny Boots Aesthetics Ltd | Wholesale & retail | 2026 |
| Benny's Services Ltd | Construction | 2022 |
| Benrob Limited | Real estate | 2013 |
| Bens Parties Limited | Administrative & support | 2017 |
| Benshu Consulting Limited | Extraterritorial | 2019 |
| Bent Hedonism Ltd | Information & communication | 2023 |
| Bentley & Sidney Holdings Limited | Real estate | 2016 |
| Bentley Trading Limited | Real estate | 2001 |
| Bently Sales Limited | Wholesale & retail | 2025 |
| Benwell Lane Newcastle SPV Limited | Construction | 2019 |
| Benz Estates II Ltd | Extraterritorial | 2018 |
| Benz Estates Ltd | Other services | 2017 |
| Berco Estates Ltd | Real estate | 2023 |
| Bergwell Estates 2 Ltd | Real estate | 2026 |
| Bergwell Estates Ltd | Real estate | 2026 |
| Berkeley Court Salford Management Limited | Real estate | 1986 |
| Berko Properties Ltd | Real estate | 2015 |
| Bermy Packaging Ltd. | Wholesale & retail | 2010 |
| Bernabeuauto Ltd | Wholesale & retail | 2025 |
| Berry Park Nominees Limited | Real estate | 1993 |
| Berrymans Lace Mawer LLP | | 2008 |
| Berty Fashion Ltd | Wholesale & retail | 2025 |
| Berzins Construction Ltd | Construction | 2025 |
| Besht Grill Limited | Hospitality | 2025 |
| Bespoke Crystals Ltd | Professional & scientific | 2019 |
| Bespoke Facades Ltd | Construction | 2023 |
| Bespoke Living Inc.Co Ltd | Other services | 2018 |
| Bespoke Services Group Ltd | Professional & scientific | 2017 |
| Bespoke Trade Bathrooms Limited | Wholesale & retail | 2022 |
| Best App Services Limited | Information & communication | 2026 |
| Best Audio Ltd | Wholesale & retail | 2023 |
| Best Bargain Sewing Supplies Ltd | Manufacturing | 2018 |
| Best END Solutions Ltd | Wholesale & retail | 2024 |
| Best Hairdresser Ltd | Other services | 2022 |
| Best Motors North West Ltd | Wholesale & retail | 2025 |
| Best Munghal Ltd | Hospitality | 2019 |
| Best of Ushys Ltd | Hospitality | 2019 |
| Best One Land Slide Ltd | Wholesale & retail | 2017 |
| Best One Mart Ltd | Wholesale & retail | 2019 |
| Bestbrokersuk Ltd | Professional & scientific | 2015 |
| Bestdeal Charter Travel Limited | Transport & logistics | 2005 |