| B D Kumar Ltd | Health & social care | 2020 |
| B F Chicken Ltd | Hospitality | 2025 |
| B Freer Window Cleaning Ltd | Administrative & support | 2024 |
| B H Pharm Limited | Health & social care | 2022 |
| B H Taxi Limited | Transport & logistics | 2022 |
| B Khan Enterprise Ltd | Transport & logistics | 2024 |
| B Local OFF Licence Limited | Wholesale & retail | 2025 |
| B N Direct Limited | Wholesale & retail | 2018 |
| B N Plumbing & Heating (North Lincs) Ltd | Construction | 2017 |
| B N Plumbing & Heating Ltd | Construction | 2016 |
| B P Fine Antiques Ltd | Wholesale & retail | 2019 |
| B P Global Trading Limited | Wholesale & retail | 2021 |
| B P Khan Limited | Health & social care | 2014 |
| B P Vehicle Centre Group Limited | Wholesale & retail | 2021 |
| B Paterson Logistics Ltd | Transport & logistics | 2025 |
| B RAM & Co Accountants Ltd | Professional & scientific | 2019 |
| B S Builders Ltd | Construction | 2026 |
| B S M Plumbing Services Ltd | Construction | 2024 |
| B S Midlands Services Ltd | Transport & logistics | 2025 |
| B S P Enterprises Holding Ltd | Financial services | 2023 |
| B S P Enterprises Trading Ltd | Other services | 2023 |
| B S Products Ltd | Wholesale & retail | 2020 |
| B Success Group Limited | Administrative & support | 2014 |
| B T Projects Limited | Construction | 2019 |
| B&A Furniture Limited | Wholesale & retail | 2026 |
| B&C Developments (Yorkshire) Limited | Construction | 2024 |
| B&Dcommerce Ltd | Wholesale & retail | 2025 |
| B&H Pubs Limited | Hospitality | 2025 |
| B&H Trans Limited | Transport & logistics | 2022 |
| B&S Carriage Ltd | Transport & logistics | 2020 |
| B&T Traders Ltd | Wholesale & retail | 2025 |
| B&T Transport Limited | Transport & logistics | 2019 |
| B-Plain Ltd | Wholesale & retail | 2025 |
| B.F.S. (Barnsley Food Catering Supplies) Limited | Wholesale & retail | 2006 |
| B.H. Improvements Ltd | Construction | 2012 |
| B.I.G.Services Ltd | Construction | 2026 |
| B.L.A. (Bradford) Limited | Real estate | 2017 |
| B.V Transportation Limited | Transport & logistics | 2018 |
| B1 Poultry Limited | Manufacturing | 2013 |
| B24SCE Ltd | Other services | 2025 |
| B3 Haberdashery Limited | Manufacturing | 2024 |
| B3S Ventures Limited | Real estate | 2020 |
| B4 Fastfood Takeaway Ltd | Hospitality | 2025 |
| B4BARGAINS Ltd | Wholesale & retail | 2022 |
| BA Consultancy Services Ltd | Information & communication | 2025 |
| BA Mehat Properties 2 Limited | Real estate | 2023 |
| BA Mehat Properties Limited | Households | 2021 |
| BAA Ortho Limited | Health & social care | 2026 |
| Baab AL Imaan CIC | Health & social care | 2023 |
| Baabai Ltd | Wholesale & retail | 2022 |
| Baaz Transport Ltd | Wholesale & retail | 2014 |
| BAB Logistic Ltd | Transport & logistics | 2025 |
| Baba Jaga Sklep Ltd | Wholesale & retail | 2017 |
| Baba Roti Catering Service Ltd | Hospitality | 2019 |
| Baba Roti House Ltd | Hospitality | 2016 |
| Babat Management Ltd | Hospitality | 2025 |
| Babef Ltd | Manufacturing | 2019 |
| Babes of the Most High Global CIC | Administrative & support | 2024 |
| Babiesdecor Ltd | Manufacturing | 2024 |
| Babji Corporation Ltd | Wholesale & retail | 2018 |
| BABRAKK-22 Ltd | Wholesale & retail | 2023 |
| Baby and Home Limited | Wholesale & retail | 2025 |
| Baby Cookie Ltd | Information & communication | 2022 |
| Babyballet HKR Limited | Education | 2025 |
| Babycare (Bradford) Limited | Wholesale & retail | 2006 |
| Babynu Limited | Wholesale & retail | 2022 |
| BAC Products UK Ltd | Wholesale & retail | 2017 |
| BAC to Business Ltd | Information & communication | 2013 |
| Back-Up Yorkshire Limited | Financial services | 2022 |
| Bacrown UK Ltd | Manufacturing | 2025 |
| BAD Reaction Games Ltd | Information & communication | 2020 |
| Badal Fashion Wear Ltd | Wholesale & retail | 2020 |
| Badgers Rest Ltd | Hospitality | 2022 |
| Badr 313 Limited | Wholesale & retail | 2025 |
| Badran Bakery Ltd | Manufacturing | 2020 |
| Badshah Logistics Ltd | Transport & logistics | 2018 |
| Bafhl Ltd | Wholesale & retail | 2025 |
| Bagewadi & Co Limited | Health & social care | 2015 |
| Bagga Transport Limited | Transport & logistics | 2025 |
| Baggage and Moore Limited | Wholesale & retail | 2020 |
| Bagh Delights Limited | Hospitality | 2026 |
| Bagshot Developments Limited | Construction | 2009 |
| Bahboye LYF Ltd | Wholesale & retail | 2025 |
| Bahy Medical Ltd | Health & social care | 2025 |
| Baig Property LLP | | 2019 |
| Baig Travels Ltd | Transport & logistics | 2026 |
| Baildon Childcare Co-Operative Ltd. | Health & social care | 1997 |
| Baildon Road Service Centre Limited | Wholesale & retail | 2011 |
| Bailes & Sutcliffe Limited | Construction | 2000 |
| Bailey Commercials Ltd | Transport & logistics | 2021 |
| Bailey P Music Ltd | Information & communication | 2023 |
| Bailey's Wholesale Fruit Distributors Limited | Wholesale & retail | 2001 |
| Baileys Ambarella Holdings Ltd | Construction | 2021 |
| Baileys Homes Limited | Real estate | 2020 |
| Baithak by Anwaar Ltd | Hospitality | 2024 |
| Baitullah & Umrah Tours Ltd | Administrative & support | 2026 |
| Bajrang Enterprise Limited | Wholesale & retail | 2025 |
| Bajy Group Limited | Administrative & support | 2018 |
| Bajy Properties Limited | Real estate | 2018 |
| Bakecendo Foods Ltd | Manufacturing | 2026 |