| Beetee Care Limited | Health & social care | 2019 |
| Befria Global X Ltd | Information & communication | 2025 |
| Befria Limited | Wholesale & retail | 2017 |
| Befria Prestige Solutions Limited | Wholesale & retail | 2017 |
| Bego Haulage Ltd | Transport & logistics | 2017 |
| BEGREEN2 Limited | Other services | 2020 |
| Beit Achuzzah Properties Ltd | Hospitality | 2025 |
| Bejm Capital Limited | Real estate | 2021 |
| Bejm Language Services Ltd | Education | 2015 |
| BEL Kare Ltd | Health & social care | 2019 |
| Bela Cafe Limited | Hospitality | 2022 |
| Bela Transport Ltd | Transport & logistics | 2019 |
| Belasica Ltd | Financial services | 2025 |
| Beldrive Ltd | Transport & logistics | 2016 |
| Belfar Plumbing & Heating Ltd | Construction | 2017 |
| Belfry Investments (Midlands) Limited | Real estate | 2024 |
| Belgard Consulting Limited | Professional & scientific | 2017 |
| Belgrade Property Investments Limited | Real estate | 2015 |
| Believe in Green Limited | Water & waste | 2016 |
| Belinda Bhebe Ltd | Financial services | 2015 |
| Bell Addington Ltd | Hospitality | 2026 |
| Bell at Buckland Ltd | Hospitality | 2013 |
| BELL.E17 Limited | Hospitality | 2012 |
| Bella Design Ltd | Manufacturing | 2022 |
| Bella Financial Ltd | Financial services | 2023 |
| Bella Kare Ltd | Health & social care | 2022 |
| Bella Napoli Hastings Ltd | Hospitality | 2023 |
| Bella Propco Ltd | Real estate | 2023 |
| Bella Property Management Ltd | Real estate | 2020 |
| Bella Rocks Ltd | Wholesale & retail | 2025 |
| BELLA27 Ltd | Hospitality | 2023 |
| Bellavip Ltd | Transport & logistics | 2020 |
| Belle Femme Nails and Beauty Limited | Other services | 2017 |
| Belle Vous Salon Ltd | Other services | 2012 |
| Belloost Limited | Manufacturing | 2019 |
| Bellore Shop Ltd | Wholesale & retail | 2026 |
| Bells Motor Group Limited | Wholesale & retail | 1988 |
| Belmax Properties Ltd | Real estate | 2024 |
| Belmont Associates Limited | Financial services | 1995 |
| Belmont Press Limited | Information & communication | 1952 |
| Belocosov Transport Services Ltd | Transport & logistics | 2025 |
| Beloved Childcare Ltd | Health & social care | 2023 |
| Belovia Healthcare PVT Ltd | Health & social care | 2024 |
| Below the Belt Ltd | Wholesale & retail | 2023 |
| Below the Line Consulting Ltd | Information & communication | 2012 |
| Belsell Limited | Wholesale & retail | 2023 |
| Belsteads Bungalow Limited | Health & social care | 2023 |
| Belta Care Support Ltd | Health & social care | 2022 |
| Beltree Properties Limited | Real estate | 2001 |
| Belvedere Building Services Limited | Construction | 2019 |
| Belvedere Property Services Limited | Real estate | 2020 |
| Bemax Limited | Construction | 2022 |
| Bemimax Ltd | Real estate | 2023 |
| Bemuse Coaching Ltd | Professional & scientific | 2024 |
| BEN & Jones Ltd | Real estate | 2023 |
| BEN & Lyndsey Hartley Holdings Ltd | Real estate | 2024 |
| BEN Evans T/A the Old Stables Limited | Hospitality | 2024 |
| BEN Jones Golf Limited | Extraterritorial | 2021 |
| BEN Nickels Ltd | Health & social care | 2022 |
| BEN Satchfield Ltd | Hospitality | 2016 |
| BEN White Hair Artistry Ltd | Other services | 2023 |
| Ben&Co Travel Ltd | Administrative & support | 2019 |
| Bench Grade Brands Holdings Limited | Wholesale & retail | 2014 |
| Bench Grade Brands Limited | Wholesale & retail | 2008 |
| Bench Grade Brands Operations Limited | Wholesale & retail | 2020 |
| Bench Grade Brands Wholesale Limited | Wholesale & retail | 2014 |
| Benchmark (UK) Limited | Manufacturing | 1999 |
| Benchmarx Kitchens and Joinery Limited | Wholesale & retail | 1993 |
| Bendini Lambert Consultants Limited | Real estate | 2010 |
| Benfavour Healthcare Ltd | Health & social care | 2023 |
| Bengal Love Limited | Extraterritorial | 2003 |
| Beni's Transport Ltd | Transport & logistics | 2020 |
| Beniam Limited | Real estate | 2017 |
| Benn Security Services Limited | Administrative & support | 2014 |
| Bennett & Co. Defence Solicitors Ltd | Professional & scientific | 2021 |
| Bennett Electrical (Northampton) Limited | Construction | 2019 |
| Bennett Holdings (Northampton) Limited | Financial services | 2025 |
| Bensen Lashes Ltd | Other services | 2023 |
| Benson Price Consultants Ltd. | Administrative & support | 2013 |
| Benson's Agency Limited | Administrative & support | 2017 |
| Benthebomberboxing Limited | Arts & recreation | 2025 |
| Bentlebury Limited | Information & communication | 2021 |
| Bentley & Rowe Ltd | Construction | 2010 |
| Bentley Design and Build Limited | Construction | 2010 |
| Bentley Wealth Limited | Extraterritorial | 2022 |
| Benu London Ltd | Wholesale & retail | 2022 |
| Benyca Construction Ltd | Construction | 2015 |
| Benysor 69 Limited | Transport & logistics | 2016 |
| Berean Bible Club Ltd | Education | 2023 |
| Bereket Trading Ltd | Hospitality | 2023 |
| Berf Developments Ltd | Construction | 2023 |
| Berfhavin Ltd | Hospitality | 2023 |
| Bergari Group Ltd | Construction | 2024 |
| Bergari Homes Ltd | Construction | 2024 |
| Bergari Lettings Ltd | Real estate | 2024 |
| Bergari Ltd | Construction | 2018 |
| Bergfix Solutions Ltd | Construction | 2025 |
| Beri Services Ltd | Transport & logistics | 2025 |
| Berisfords Property Limited | Real estate | 2017 |
| Berkeley Asset Finance Ltd | Financial services | 2016 |