| Beast HQ Limited | Arts & recreation | 2022 |
| Beata Snarska Ltd | Wholesale & retail | 2022 |
| Beaumont & Sons Abbey Clinic Ltd | Construction | 2025 |
| Beaumont & Sons Commercial Properties Limited | Real estate | 2023 |
| Beaumont & Sons Property Holdings Limited | Financial services | 2025 |
| Beaumont & Sons Residential Properties Limited | Real estate | 2021 |
| Beaumont Dubai Limited | Financial services | 2024 |
| Beauty 181 Ltd | Other services | 2019 |
| Beauty by Tyler Savanna Ltd | Administrative & support | 2017 |
| Beaux Aesthetics Limited | Other services | 2009 |
| Beaver Consulting Limited | Professional & scientific | 2016 |
| Beaver Project Management LLP | | 2016 |
| Bebetr Technical Services Ltd | Wholesale & retail | 2025 |
| Beck Build Ltd. | Administrative & support | 2018 |
| Beckabows Ltd | Wholesale & retail | 2024 |
| Bedson Construction Services Limited | Construction | 2022 |
| BEE Active Childcare Ltd | Education | 2014 |
| BEE Clean Systems Ltd | Wholesale & retail | 2016 |
| BEE Excellent Homes Ltd | Health & social care | 2026 |
| Bee-Rite Builders Ltd | Construction | 2025 |
| Beech Avenue Events Limited | Hospitality | 2025 |
| Beech Roofing Limited | Construction | 2015 |
| Beechcroft Electrical Services Ltd | Construction | 2014 |
| Beedale Limited | Agriculture & fishing | 2009 |
| Beek Ltd | Wholesale & retail | 2024 |
| Beema Ltd | Wholesale & retail | 2024 |
| Bees Knees Scents Ltd | Manufacturing | 2022 |
| Beestoon Ltd. | Information & communication | 2025 |
| Bekologistics Limited | Transport & logistics | 2019 |
| Beku Ltd | Professional & scientific | 2017 |
| BEL Momento Ltd | Hospitality | 2024 |
| Belford and Brian Construction Ltd | Construction | 2019 |
| Belford Bros Skip Hire Limited | Water & waste | 2003 |
| Belgravia International Limited | Water & waste | 2022 |
| Bella Cosmetics Ltd | Wholesale & retail | 2016 |
| Bella Moora Ltd | Wholesale & retail | 2016 |
| Bella Toiletries and Trading Ltd | Wholesale & retail | 2016 |
| Bellamy Plumbing and Heating Ltd | Construction | 2021 |
| Belle Coachworks Holdings Limited | Financial services | 2022 |
| Belle Walk Apartments Ltd | Hospitality | 2023 |
| Belle Walk Commercial Ltd | Hospitality | 2023 |
| Belle Walk Group Ltd | Financial services | 2023 |
| Belle Walk Properties Ltd | Real estate | 2021 |
| Bellena Publishing Ltd | Information & communication | 2024 |
| Bellerton Service Centre Ltd | Wholesale & retail | 2019 |
| Bellwright Consultancy Ltd | Information & communication | 2025 |
| Belmont Healthcare Consulting Ltd | Professional & scientific | 2026 |
| Bempf Housing Solution Ltd | Real estate | 2024 |
| BEN Thompson Autos Ltd | Wholesale & retail | 2025 |
| Benchdollar Limited | Construction | 1982 |
| Benched AI Systems Limited | Information & communication | 2026 |
| Benedict Flynn Limited | Professional & scientific | 2017 |
| Benfield Pension Trustees Limited | Extraterritorial | 2001 |
| Benjamin LEE Consultancy Limited | Professional & scientific | 2021 |
| Bennett Legacy Properties Ltd. | Real estate | 2025 |
| Bennett Property Group Ltd | Real estate | 2025 |
| Bennett-Squires SR Ltd | Health & social care | 2019 |
| Bennion Kearny Limited | Information & communication | 2008 |
| Bentley Fencing Limited | Manufacturing | 2006 |
| Benx Holdings Limited | Professional & scientific | 2015 |
| Benx Limited | Manufacturing | 2002 |
| Berchiu Trade and Transport Ltd | Transport & logistics | 2016 |
| Beresford Accounting Services Limited | Extraterritorial | 2016 |
| Beresford Building Services Ltd | Construction | 2006 |
| Bericon Services Limited | Professional & scientific | 1982 |
| Bermuda Watch Company Ltd | Wholesale & retail | 2015 |
| Berrisford Car Sales Limited | Wholesale & retail | 2012 |
| Berrisford Management Services Limited | Real estate | 2014 |
| Berry Property & Housing Ltd | Real estate | 2025 |
| Berthold Moyo Limited | Arts & recreation | 2025 |
| Bertrand Homes Limited | Real estate | 2025 |
| Bescura Ltd | Health & social care | 2022 |
| Bespoke Bathrooms Staffs Ltd | Wholesale & retail | 2020 |
| Bespoke Cabins & Joinery Ltd | Manufacturing | 2025 |
| Bespoke Financial (Newcastle) Limited | Financial services | 2014 |
| Bespoke Gatherings Ltd | Professional & scientific | 2025 |
| Bespoke Global Solutions Limited | Transport & logistics | 2020 |
| Bespoke IT Services Ltd | Information & communication | 2023 |
| Bespoke Living Designs Ltd | Professional & scientific | 2025 |
| Bespoke Media Walls Limited | Construction | 2023 |
| Bespoke Regional Developments Ltd | Construction | 2024 |
| Bespoke Salon Furniture Limited | Manufacturing | 2021 |
| Bespoke Transitions Limited | Health & social care | 2013 |
| Bespoke Upvc Windows and Doors Limited | Construction | 2019 |
| Best 4 U Hanley Limited | Hospitality | 2024 |
| Best Choice Convenience Store Ltd | Wholesale & retail | 2025 |
| Best Choice Direct Ltd | Wholesale & retail | 2010 |
| Best Hand Car Wash Cobridge Ltd | Administrative & support | 2026 |
| Best Kept Secret Kitchen Company Ltd | Professional & scientific | 2022 |
| Best Practice Investigations Limited | Administrative & support | 2012 |
| Best Retail Shop Ltd | Wholesale & retail | 2026 |
| Best Superstore Ltd | Wholesale & retail | 2025 |
| Best Talent Solutions Ltd | Administrative & support | 2007 |
| Best Tech Services Limited | Construction | 2014 |
| Best View Windows Ltd | Manufacturing | 2010 |
| BEST4BUILD Limited | Construction | 2020 |
| Bestclan Ltd | Professional & scientific | 2018 |
| Besthgv Ltd | Transport & logistics | 2019 |
| Beswicks Financial Limited | Professional & scientific | 2018 |
| BET365 Group Limited | Professional & scientific | 2001 |