| Baobab Care UK Limited | Health & social care | 2016 |
| Baobab Women's Project C.I.C. | Information & communication | 2019 |
| Baohaus Ltd | Hospitality | 2025 |
| Bapu Colorectal Care Ltd | Health & social care | 2026 |
| Baqstocks Limited | Wholesale & retail | 2023 |
| Baquilin Ltd | Administrative & support | 2021 |
| Bar Chef Company Ltd | Hospitality | 2022 |
| Bar Jester (B1) Limited | Hospitality | 2012 |
| Bar One Quinton Ltd | Hospitality | 2024 |
| Bara & Co Maintenance Limited | Construction | 2023 |
| Bara Creations Ltd | Education | 2023 |
| Bara Recruitment Limited | Administrative & support | 2026 |
| Baraka Influence Ltd | Professional & scientific | 2025 |
| Baraka Internet Cafe Ltd | Hospitality | 2021 |
| Baraka Maintenance Ltd | Construction | 2025 |
| Baraka Property Group Limited | Real estate | 2021 |
| Barakacity Ltd. | Other services | 2016 |
| Barakah Birmingham Limited | Real estate | 2024 |
| Barakah by Zymal’S CIC | Hospitality | 2025 |
| Barakah Electrical Ltd | Manufacturing | 2025 |
| Barakah Journeys Ltd | Administrative & support | 2025 |
| Barakah Mabrook Ltd | Professional & scientific | 2025 |
| Barakah Residential Limited | Real estate | 2021 |
| Barakat Foods Limited | Hospitality | 2024 |
| Barako Engineering Limited | Professional & scientific | 2025 |
| Baran Supermarket Ltd | Wholesale & retail | 2019 |
| Barani Pharma Ltd | Wholesale & retail | 2021 |
| Baraq Holdings Ltd | Financial services | 2024 |
| Barbara Scandrett Consulting Limited | Health & social care | 2008 |
| Barbarus Delivery Ltd | Transport & logistics | 2015 |
| Barbary Macaque Ltd | Wholesale & retail | 2024 |
| Barbellmarketing Ltd | Professional & scientific | 2019 |
| Barber Palace Ltd | Other services | 2023 |
| Barber Stop Limited | Other services | 2020 |
| Barberi and Newman Academy Trust | Education | 2012 |
| Barberini Medical Communications Ltd | Health & social care | 2019 |
| Barbers RAZ Ltd | Other services | 2024 |
| Barbers Warehouse Ltd | Wholesale & retail | 2018 |
| Barbon Studios Ltd | Professional & scientific | 2025 |
| Barboo Ltd | Professional & scientific | 2022 |
| Barbryn Limited | Extraterritorial | 1978 |
| Barbudo Traders Ltd | Wholesale & retail | 2025 |
| Barcan Group Cleaning Ltd | Administrative & support | 2023 |
| Barcelona Construction Limited | Construction | 2015 |
| Barcelonasl Ltd | Wholesale & retail | 2021 |
| Barclay Court Management Company Limited | Households | 1984 |
| Barclays Nominees (Branches) Limited | Professional & scientific | 1925 |
| Barcred Limited | Administrative & support | 2013 |
| Bardashan Food Store Ltd | Wholesale & retail | 2026 |
| Barday Hotels Ltd | Hospitality | 2022 |
| Bardoy Holdings Ltd | Real estate | 2023 |
| Bare Delish Ltd | Wholesale & retail | 2021 |
| Bare Face Aesthetics Limited | Health & social care | 2015 |
| Bare Faced by Hanah Limited | Other services | 2026 |
| Bare Tools Ltd | Wholesale & retail | 2023 |
| Bare-Non Limited | Wholesale & retail | 2016 |
| Bareeno Ltd | Wholesale & retail | 2020 |
| Bareeqtechs Investment Limited | Real estate | 2017 |
| Bareface Media Limited | Professional & scientific | 2013 |
| Barefoot Health & Wellbeing Ltd. | Administrative & support | 2011 |
| Barefoot Wellbeing C.I.C. | Health & social care | 2015 |
| Barefoot Yoga Harborne Limited | Administrative & support | 2020 |
| Barenburg Capital Partners Ltd | Real estate | 2018 |
| Barentta Limited | Manufacturing | 2025 |
| Bareta Cleanpro Group Ltd | Administrative & support | 2025 |
| Bareta Media and Communications C.I.C. | Information & communication | 2025 |
| Barfix Ltd | Construction | 2019 |
| Barfly UK Limited | Wholesale & retail | 2002 |
| Bargain Auction UK Limited | Wholesale & retail | 2019 |
| Bargain Bandit Ltd | Wholesale & retail | 2026 |
| Bargain Base Ltd | Wholesale & retail | 2025 |
| Bargain Beds Limited | Information & communication | 2010 |
| Bargain Buyz Ltd | Manufacturing | 2025 |
| Bargain Carz Ltd | Wholesale & retail | 2024 |
| Bargain Clothes Co Ltd | Wholesale & retail | 2025 |
| Bargain Crown Ltd | Wholesale & retail | 2024 |
| Bargain Crown WM Ltd | Wholesale & retail | 2026 |
| Bargain Food and Wine Ltd | Wholesale & retail | 2018 |
| Bargain Foods Holdings Ltd | Wholesale & retail | 2017 |
| Bargain Hunter Ltd | Wholesale & retail | 2025 |
| Bargain Munky Limited | Financial services | 2014 |
| Bargain World Limited | Wholesale & retail | 2023 |
| BARGAIN2PUBLIX Ltd | Wholesale & retail | 2025 |
| BARGAIN360 Ltd | Wholesale & retail | 2023 |
| Bargainbranded Limited | Wholesale & retail | 2025 |
| Bargaincrate Ltd | Wholesale & retail | 2025 |
| Bargains Clearance UK Ltd | Wholesale & retail | 2020 |
| Bargains Deal 50 Ltd | Wholesale & retail | 2026 |
| Bargainsbuster Ltd | Wholesale & retail | 2026 |
| Bargainsforuk Limited | Wholesale & retail | 2026 |
| Bari & Bari the Estate Agents Limited | Real estate | 2025 |
| Baril Coatings UK Limited | Professional & scientific | 2008 |
| Barista and Baker Limited | Manufacturing | 2021 |
| Bark and Jack Ltd | Wholesale & retail | 2018 |
| Barkat & Sons Holding Ltd | Real estate | 2021 |
| Barkat Ventures Ltd | Financial services | 2017 |
| Barker Brettell LLP | | 2008 |
| Barker Brettell Services Limited | Administrative & support | 2012 |
| Barker Road Management Company Limited | Households | 1999 |
| Barkhat Properties Limited | Real estate | 2023 |