| Bennett Group Holdings Limited | Financial services | 2024 |
| Bennett Homes South West Ltd | Real estate | 2018 |
| Bennett PUB Company Ltd | Hospitality | 2024 |
| Bennett PUB Group Ltd | Hospitality | 2015 |
| Bennett Stock Limited | Professional & scientific | 1995 |
| Bennett Technology Services Limited | Information & communication | 2023 |
| Bennetts Solicitors Limited | Professional & scientific | 2011 |
| Benny Drivers Ltd | Transport & logistics | 2014 |
| Bennykayale Ltd | Administrative & support | 2019 |
| Benoy LXM Ltd | Administrative & support | 2026 |
| Bens Burners Limited | Administrative & support | 2022 |
| Benson Accountancy Services Ltd | Professional & scientific | 2003 |
| Benson Industry Ltd | Construction | 2022 |
| Benson Quantum Ltd | Administrative & support | 2013 |
| Bensy Limited | Manufacturing | 2024 |
| Bentley Dabell Limited | Professional & scientific | 2018 |
| Bentley Developments Limited | Construction | 2026 |
| Bentley Park (UK) Limited | Professional & scientific | 2015 |
| BENTLEY8 Limited | Information & communication | 2015 |
| Bento House Limited | Hospitality | 2015 |
| Benton-Roch Developments Limited | Construction | 2020 |
| Beny Trans Ltd | Transport & logistics | 2014 |
| Beonboard Limited | Extraterritorial | 2023 |
| Beonline Ltd | Information & communication | 2011 |
| BEP Construction SPV1 Ltd | Construction | 2022 |
| BEP Workshop Ltd | Real estate | 2022 |
| Bepractical Ltd | Other services | 2022 |
| Berar Limited | Hospitality | 2026 |
| Berburn Properties Ltd | Real estate | 2024 |
| Bereket for Seasons Ltd | Hospitality | 2025 |
| Beresford Dunne Consultants Limited | Professional & scientific | 2004 |
| Beresford House Flat Management Company Limited | Households | 1996 |
| Beresford House Holdings Limited | Real estate | 2017 |
| Bergamont Ltd | Real estate | 2022 |
| Bergerschaffitzel Ltd | Professional & scientific | 2026 |
| Bergwelle Estates Ltd | Real estate | 2024 |
| Beringer Anaesthesia Limited | Health & social care | 2020 |
| Berite Property Services Ltd | Construction | 2025 |
| Berkeley Barbers Ltd | Other services | 2024 |
| Berkeley Centre Health Ltd | Health & social care | 2017 |
| Berkeley Cleaning Services SW Ltd | Administrative & support | 2025 |
| Berkeley Court (Bath) Limited | Households | 1971 |
| Berkeley Estates (Bristol) LLP | | 2017 |
| Berkeley Estates Sales Limited | Real estate | 2015 |
| Berkeley Financial Services Ltd | Professional & scientific | 1983 |
| Berkeley Green Management Limited | Households | 1992 |
| Berkeley Guardians Ltd | Education | 2019 |
| Berkeley Horizon Limited | Real estate | 2025 |
| Berkeley House Clifton Limited | Households | 1988 |
| Berkeley Marketing Ltd | Professional & scientific | 2012 |
| Berkeley Place Property and Investment Ltd | Professional & scientific | 2015 |
| Berkeley Professional Fitness Limited | Arts & recreation | 2012 |
| Berkeley Property Investments SW Ltd | Real estate | 2025 |
| Berkeley Property Maintenance SW Ltd | Construction | 2025 |
| Berkeley Property Management (Bristol) Ltd | Real estate | 2014 |
| Berkeley Road Management Company Limited | Real estate | 2000 |
| Berkeley Skye Associates Ltd | Other services | 2020 |
| Berkeley Square (Clifton) Management Company Limited | Real estate | 2008 |
| Berkeley Square IT Ltd | Administrative & support | 2004 |
| Berkeley Stainless Fittings Limited | Manufacturing | 1998 |
| Berkeley Stays Limited | Construction | 2018 |
| Berkford Limited | Construction | 2014 |
| Berkobeerfest Ltd | Extraterritorial | 2025 |
| Berkshire Body and Mind Ltd | Extraterritorial | 2010 |
| Berkshire Grey UK, Ltd. | Professional & scientific | 2020 |
| Berkshire Production Ltd | Wholesale & retail | 2021 |
| BERMUUDA2TRAVEL Ltd | Manufacturing | 2026 |
| Bernz Limited | Wholesale & retail | 2025 |
| Berona Kitchen Ltd | Hospitality | 2026 |
| Berry Barn Limited | Wholesale & retail | 2015 |
| Berry Brothers (Tormarton) Limited | Agriculture & fishing | 2012 |
| Berry Rowan Recruitment Limited | Administrative & support | 2017 |
| Berry Yates Limited | Wholesale & retail | 2003 |
| Berry's Heating Services Ltd | Construction | 2017 |
| Berrydrop Ltd | Wholesale & retail | 2025 |
| Berrymead Productions Limited | Information & communication | 2003 |
| Berrywell Nutrition Limited | Financial services | 2022 |
| Berrywood Contractors Group Ltd | Other services | 2020 |
| Bersa Perfumery Ltd | Wholesale & retail | 2023 |
| Bertha's at Home Ltd | Manufacturing | 2024 |
| Bertha's Pizza Ltd | Hospitality | 2014 |
| Bertie & Belle Franchising Limited | Professional & scientific | 2023 |
| Bertie Gregory Productions Limited | Information & communication | 2017 |
| Bertie's Pet Store Ltd | Wholesale & retail | 2022 |
| Bertram Clinic Ltd | Extraterritorial | 2020 |
| Bertran LP | | 2012 |
| Bert’S Burgers Ltd | Hospitality | 2025 |
| Berwick Lodge Limited | Hospitality | 2004 |
| BES Healthcare Ltd | Wholesale & retail | 1998 |
| BES Marquees Ltd | Administrative & support | 2015 |
| BES Systems Ltd | Administrative & support | 2008 |
| Besde Ltd | Wholesale & retail | 2026 |
| Beside Ltd | Professional & scientific | 2023 |
| Besley & Co Design and Build Ltd | Construction | 2024 |
| Besley Hill Franchising Limited | Real estate | 2003 |
| Besley Hill Survey & Professional Ltd | Professional & scientific | 1995 |
| Besouthchan Holdings Ltd | Financial services | 2024 |
| Besouthchan Ltd | Financial services | 2024 |
| Bespin Research Ltd | Manufacturing | 2017 |
| Bespo'Ke Male Grooming Ltd | Health & social care | 2011 |