| BDP Consultants Limited | Professional & scientific | 2017 |
| BDR Management Limited | Households | 2002 |
| BDS Plastering & Property Services Ltd | Construction | 2024 |
| BDT Mechanical Engineering Ltd | Professional & scientific | 2019 |
| BE a Lady Ltd | Other services | 2023 |
| BE BE Free Ltd | Administrative & support | 2014 |
| BE Bluz Ltd | Hospitality | 2021 |
| BE Ltd | Professional & scientific | 2004 |
| BE Okay Services CIC | Health & social care | 2024 |
| BE Safe Northwest Ltd. | Administrative & support | 2010 |
| BE Supplies Ltd | Wholesale & retail | 2024 |
| BE YOU Therapy Limited | Public administration | 2026 |
| Bean House Limited | Wholesale & retail | 2024 |
| Beanon Software Limited | Information & communication | 2018 |
| Beans Accountants Ltd | Professional & scientific | 2009 |
| Bear Abodes Limited | Real estate | 2022 |
| Bear East Holdings Ltd | Professional & scientific | 2019 |
| Bear East Limited | Real estate | 2001 |
| Beard Buildzz Ltd | Manufacturing | 2024 |
| Beard Buildzz Trailer Co Ltd | Administrative & support | 2025 |
| Beastwoe Games Ltd | Information & communication | 2025 |
| Beat Modules Ltd | Information & communication | 2025 |
| Beats With Vibes Sounds Limited | Information & communication | 2025 |
| Beaufort Power Ltd | Energy | 2014 |
| Beaulieu Estate Management Limited | Administrative & support | 2015 |
| Beaumont Project Services Limited | Professional & scientific | 2020 |
| Beaumont UK Properties Ltd | Real estate | 2021 |
| Beautiful Active Nourished Limited | Professional & scientific | 2010 |
| Beautiful Moon Ltd | Real estate | 2023 |
| Beautiful Soul Ltd | Administrative & support | 2025 |
| Beauty at Heart (Warrington) Ltd | Other services | 2015 |
| Beauty by Sophie Cheshire Ltd | Other services | 2025 |
| Beauty Fresh Limited | Wholesale & retail | 2009 |
| Beauty in the Industry Ltd | Education | 2021 |
| Beauty Worx Warrington Limited | Wholesale & retail | 2025 |
| BEAUTY@111 Limited | Other services | 2018 |
| Beauxfield Limited | Real estate | 1988 |
| Beavis Engineering Ltd | Administrative & support | 2026 |
| Bebe MCR Ltd | Hospitality | 2025 |
| Bebington DRY Cleaning Limited | Other services | 2019 |
| Becam TS Ltd | Construction | 2021 |
| Because YOU Matter Counselling Ltd | Health & social care | 2022 |
| Beckenham Consultancy Limited | Administrative & support | 2012 |
| Becko Delivery Ltd | Transport & logistics | 2026 |
| Becks & Clates Ltd | Professional & scientific | 2024 |
| Become a Champion Ltd | Other services | 2018 |
| Bec’S Beauty Bar Ltd | Other services | 2023 |
| BED Factory (Contracts) Limited | Wholesale & retail | 2002 |
| BED Holdings Limited | Professional & scientific | 2020 |
| Bedford & Family Childcare Ltd | Health & social care | 2021 |
| Bedford Packaging Limited | Wholesale & retail | 1992 |
| Bedrock Investment Limited | Real estate | 2020 |
| BEE & GEE Ltd | Professional & scientific | 2025 |
| BEE Assured Limited | Wholesale & retail | 2026 |
| BEE Investment Group Ltd | Real estate | 2021 |
| BEE Property Investment Ltd | Real estate | 2020 |
| BEE Solution Services Ltd | Real estate | 2023 |
| BEE Stays Ltd | Real estate | 2022 |
| Beechmount Investigations Ltd | Administrative & support | 2013 |
| Beechways (Appleton Park) Residents Association Limited | Households | 1987 |
| Beechways Developments Limited | Construction | 2001 |
| Beechwood EV Solutions Ltd | Construction | 2024 |
| Beechwood Fire and Security Ltd | Construction | 2024 |
| Beechwood Landscaping Facilities Limited | Administrative & support | 2017 |
| Beechwood Training Services Ltd | Professional & scientific | 2007 |
| Beechwoodconstruct Ltd | Construction | 2025 |
| Beer CAN Co Ltd | Hospitality | 2025 |
| Begde Properties Limited | Real estate | 2018 |
| Begl 4 Limited | Energy | 2010 |
| Bela Estates Ltd | Real estate | 2025 |
| Bele Consultancy Limited | Other services | 2017 |
| Belfield Project Management Ltd | Professional & scientific | 2019 |
| Belford One Ltd | Wholesale & retail | 2025 |
| Believe & Receive Ltd | Health & social care | 2024 |
| Bell Taverns Ltd | Hospitality | 2025 |
| Bella BOO Developments Ltd | Real estate | 2025 |
| Bella Harris Creative Ltd | Professional & scientific | 2024 |
| Bella UK Property Limited | Real estate | 2025 |
| Bellabe Design Consultancy Ltd | Professional & scientific | 2020 |
| Belle Ombre Ltd | Wholesale & retail | 2019 |
| Belle VUE Digital Consulting Limited | Information & communication | 2015 |
| Bellefields Brew Limited | Hospitality | 2025 |
| Bellhouse Cottage Limited | Real estate | 2024 |
| Belling (1992) Limited. | Administrative & support | 1992 |
| Bells & Whistles (Stockton Heath) Ltd | Wholesale & retail | 2020 |
| Belro Environmental Services Limited | Professional & scientific | 2023 |
| Belt Hub Limited | Wholesale & retail | 2024 |
| Belter Solutions Ltd | Information & communication | 2016 |
| Belvedere Apartments (Management Company) Limited | Households | 2021 |
| Belvio Ltd | Wholesale & retail | 2023 |
| Bemmy Limited | Other services | 2017 |
| BEN Gulliver Limited | Administrative & support | 2026 |
| BEN Jackson Consulting Ltd | Professional & scientific | 2018 |
| BEN Spalding VFX Ltd | Information & communication | 2018 |
| Benchmark Enterprises UK Limited | Households | 2019 |
| Benchmark Skills Limited | Professional & scientific | 2015 |
| Benedicto ET MEL Ltd | Health & social care | 2024 |
| Benefits Realisation Management Limited | Professional & scientific | 2018 |
| Benessere Ltd. | Professional & scientific | 2016 |
| Benevoly Limited | Professional & scientific | 2025 |