| Beans and Buns Limited | Hospitality | 2022 |
| Bearing Factors Limited | Wholesale & retail | 2016 |
| Beast Benefits Ltd | Professional & scientific | 2026 |
| Beaufort Properties (Nelson) Limited | Real estate | 2016 |
| Beaute by Tara Ltd | Other services | 2023 |
| Beauty Hub 131 Ltd | Other services | 2025 |
| Beautyfba.Com Ltd | Wholesale & retail | 2025 |
| Beckett Jones Associates Limited | Financial services | 2014 |
| Beech's (1959) Ltd | Financial services | 2024 |
| Behroz Brothers Ltd | Manufacturing | 2023 |
| Beko Network Ltd | Real estate | 2021 |
| Bellovisto Ltd | Wholesale & retail | 2025 |
| Bennett Leather Developments Ltd | Construction | 2025 |
| Bespoke Social Care Solutions Limited | Health & social care | 2017 |
| Best Booze Convenience Store Ltd | Wholesale & retail | 2014 |
| Best Brothers Inc Ltd | Wholesale & retail | 2014 |
| Best One (Hallam) Ltd | Wholesale & retail | 2025 |
| Best One (Reedley) Ltd | Wholesale & retail | 2025 |
| Best One Failsworth Ltd | Wholesale & retail | 2019 |
| Best Pandi Group UK Ltd | Manufacturing | 2024 |
| Best-One Nelson Ltd | Wholesale & retail | 2024 |
| Bestview Windows and Doors Ltd | Manufacturing | 2026 |
| Beyond Care NW Ltd | Health & social care | 2026 |
| Beyond Homecare Limited | Health & social care | 2023 |
| BFI Furniture Holdings Ltd | Other services | 2018 |
| BGZ Snooker Club Ltd | Arts & recreation | 2025 |
| Bhatti Properties Ltd | Real estate | 2025 |
| BHG Advisory Ltd | Extraterritorial | 2025 |
| Bhvi Limited | Hospitality | 2017 |
| BIA Accountants Ltd | Professional & scientific | 2025 |
| Bibis Fastfood Street Food Ltd | Hospitality | 2026 |
| Biddably Ltd | Administrative & support | 2017 |
| Biea Trading Ltd | Wholesale & retail | 2024 |
| Big Talkers Ltd | Administrative & support | 2020 |
| Bigjims TV Ltd | Transport & logistics | 2025 |
| BIL & DAN Ltd | Wholesale & retail | 2024 |
| Bilal Properties Limited | Real estate | 2023 |
| Bilal Retails Ltd | Wholesale & retail | 2024 |
| BIN Noor Enterprises Limited | Wholesale & retail | 2025 |
| Bingo Thats Bonkers Ltd | Arts & recreation | 2021 |
| Bint Mansha Travel Ltd | Administrative & support | 2026 |
| BIS Traders Ltd | Wholesale & retail | 2020 |
| Bizi Bizz Limited | Wholesale & retail | 2026 |
| BKL Financial Planning Ltd | Professional & scientific | 2022 |
| Black Otter Solutions Ltd | Information & communication | 2005 |
| Blackadder Properties Limited | Construction | 2006 |
| Blackburn Retail Limited | Wholesale & retail | 2022 |
| Blackmans Legal Limited | Professional & scientific | 2025 |
| Blacko Estates Limited | Construction | 2000 |
| Blacko Foot Property Management Company (NO2) Limited | Administrative & support | 2014 |
| Blackstone Assist Limited | Administrative & support | 2023 |
| Blackstone Courier Limited | Transport & logistics | 2026 |
| Blaze Trail Management Limited | Professional & scientific | 2024 |
| Blazro Holdings Limited | Financial services | 2013 |
| Blessed Land Tours Ltd | Administrative & support | 2023 |
| Bloombridge Care Ltd | Health & social care | 2025 |
| Blue Border EOT Limited | Financial services | 2023 |
| Blue Border Ltd | Professional & scientific | 2015 |
| Blue Box Luxury Limited | Wholesale & retail | 2025 |
| Blue Island Home Ltd | Manufacturing | 2015 |
| Blue Rock IT Limited | Information & communication | 2018 |
| Blue Sun Retail Limited | Wholesale & retail | 2020 |
| Bluebell Northwest Limited | Construction | 2009 |
| Bluebrook Car Sales Limited | Wholesale & retail | 2018 |
| Bluepixel Technologies Ltd Ltd | Wholesale & retail | 2026 |
| BMH Traders Limited | Wholesale & retail | 2024 |
| Boards Enterprise Ltd | Professional & scientific | 2024 |
| Boba Bubble Tea Ltd | Hospitality | 2023 |
| Bobby’S Food & Drink Ltd | Wholesale & retail | 2026 |
| Boden Homes Ltd | Construction | 2024 |
| Boiler Care & GAS Works Ltd | Construction | 2023 |
| Boldlawn Holdings Limited | Health & social care | 2003 |
| Bolton Brady Limited | Extraterritorial | 2016 |
| Bontane Limited | Other services | 2021 |
| Boost Wellbeing C.I.C. | Health & social care | 2017 |
| Born UP North Limited | Hospitality | 2020 |
| Borrans Court Residents Association Limited | Extraterritorial | 1988 |
| Boss Transport NW Ltd | Transport & logistics | 2025 |
| Bottle Shop (SY) Nelson Ltd | Wholesale & retail | 2026 |
| Bottle Shop Ltd | Wholesale & retail | 2025 |
| Boutique by Victoria Limited | Wholesale & retail | 2019 |
| Boxtide Ltd | Wholesale & retail | 2025 |
| BR Motor Trade Ltd | Wholesale & retail | 2022 |
| BR Motorsport Ltd | Wholesale & retail | 2015 |
| Bracewell and Venn Estates Ltd | Real estate | 2025 |
| Bradford & District Motor Club Limited | Arts & recreation | 1979 |
| Bradford Car Centre Ltd | Wholesale & retail | 2016 |
| Bradford Davies Holdings Limited | Financial services | 2023 |
| Bradfords Cellar Limited | Wholesale & retail | 2026 |
| Bradley Metal Scrap Ltd | Wholesale & retail | 2026 |
| Bradley Timber Merchants Ltd | Wholesale & retail | 2019 |
| Bradley Tyres Ltd | Wholesale & retail | 2018 |
| Braithwaite Holdings Limited | Professional & scientific | 2007 |
| Bravehead Ltd | Other services | 2020 |
| Brew & Boost Ltd | Hospitality | 2026 |
| Brhaive Products Ltd | Wholesale & retail | 2025 |
| Bridey Accessories Ltd | Wholesale & retail | 2025 |
| Bridgewater Law Ltd | Professional & scientific | 2024 |
| Bridgewater+ Limited | Real estate | 2020 |
| Brier Engineering Limited | Manufacturing | 1985 |