| B Rashid Limited | Health & social care | 2016 |
| B S & N K Panesar (Holdings) Limited | Wholesale & retail | 2018 |
| B S Infrastructure Solutions Limited | Information & communication | 2007 |
| B S Living Ltd | Construction | 2023 |
| B S O'Brien Orthopaedics Ltd. | Health & social care | 2011 |
| B S Polythene Holdings Limited | Other services | 2017 |
| B S Polythene Limited | Manufacturing | 2010 |
| B S Properties Management Limited | Wholesale & retail | 2024 |
| B S Rigging Limited | Administrative & support | 2002 |
| B Sales Ltd | Wholesale & retail | 2016 |
| B SIG Limited | Real estate | 2023 |
| B Switch Ltd | Administrative & support | 2025 |
| B T Trimmings Ltd | Administrative & support | 2025 |
| B Tech B,Ham Ltd | Wholesale & retail | 2022 |
| B Travels Ltd | Transport & logistics | 2017 |
| B W B Estates Limited | Real estate | 2007 |
| B Welcome CAD Limited | Administrative & support | 2014 |
| B Writing Limited | Professional & scientific | 2023 |
| B&A Designs Ltd | Other services | 2017 |
| B&A Taverns Limited | Hospitality | 2026 |
| B&A Travel (Oxford) Limited | Wholesale & retail | 2019 |
| B&A Worldwide Limited | Wholesale & retail | 2021 |
| B&B Electrical Ltd | Construction | 2021 |
| B&B Electrical Wholesale Limited | Real estate | 2006 |
| B&B Group Ltd | Wholesale & retail | 2026 |
| B&B Housing Ltd | Real estate | 2025 |
| B&B Property Management Limited | Real estate | 2024 |
| B&B Rubbish Clearance Ltd | Water & waste | 2026 |
| B&B Therapy Ltd | Education | 2024 |
| B&B Timber Limited | Manufacturing | 2025 |
| B&C TRU Shea Butter Ltd | Wholesale & retail | 2025 |
| B&D Commercial Catering Equipment Ltd | Wholesale & retail | 2024 |
| B&D Holdings Ltd | Real estate | 2018 |
| B&D Medical Ltd | Health & social care | 2014 |
| B&D Quality Homes Ltd | Real estate | 2018 |
| B&G Croydon Ltd | Hospitality | 2024 |
| B&G Vehicle Solutions Ltd | Wholesale & retail | 2023 |
| B&H Home Management Limited | Real estate | 2020 |
| B&H Union Trading Ltd | Wholesale & retail | 2024 |
| B&H Ventures Ltd | Real estate | 2024 |
| B&K Restaurants Limited | Hospitality | 2018 |
| B&K Support Services Ltd | Health & social care | 2025 |
| B&L Living Limited | Real estate | 2024 |
| B&M Exotic Fruits & VEG Ltd | Wholesale & retail | 2022 |
| B&Mm Ltd | Transport & logistics | 2014 |
| B&N Accountants Ltd | Real estate | 2023 |
| B&N Property Holdings Limited | Real estate | 2017 |
| B&R Engineering Ltd | Wholesale & retail | 2025 |
| B&R Hand Car Wash Ltd | Other services | 2021 |
| B&R Properties (Birmingham) Ltd | Construction | 2017 |
| B&S Discount Ltd | Wholesale & retail | 2017 |
| B&S Midlands Link Ltd | Extraterritorial | 2021 |
| B&Y Construction Ltd | Construction | 2023 |
| B&Y Estates Ltd | Construction | 2025 |
| B&Y Limpio Limited | Wholesale & retail | 2019 |
| B'Ham Homes Ltd | Real estate | 2025 |
| B'Ham Neuro Ltd | Health & social care | 2023 |
| B'Opera Ltd | Education | 2024 |
| B-Active Health and Fitness Centre Limited | Arts & recreation | 2009 |
| B-Angelicus Health & Care Limited | Health & social care | 2015 |
| B-Bho Records Ltd | Information & communication | 2024 |
| B-Desh Ltd | Wholesale & retail | 2018 |
| B-Empowered Project CIC | Health & social care | 2025 |
| B-Hive Holdings Limited | Financial services | 2022 |
| B-Yond Trading Ltd | Hospitality | 2025 |
| B. & S. Tools Limited | Manufacturing | 1947 |
| B. Close Ltd | Professional & scientific | 2021 |
| B. J. Roofing Services Limited | Construction | 2024 |
| B. Price Holdings Limited | Extraterritorial | 2009 |
| B. Price Limited | Construction | 1981 |
| B. R. Autos Ltd | Wholesale & retail | 2021 |
| B. S. Building Specialists Ltd | Construction | 2015 |
| B. Yeomans (Pallets) Limited | Manufacturing | 1974 |
| B.A Social Housing Ltd | Real estate | 2026 |
| B.A. Media Holdings Limited | Financial services | 2011 |
| B.A. Skele Limited | Administrative & support | 2025 |
| B.B Quality Ltd | Professional & scientific | 2022 |
| B.B.N Hire Ltd | Water & waste | 2024 |
| B.Boateng Limited | Construction | 2018 |
| B.C.K. Limited | Professional & scientific | 2019 |
| B.Courageous Ltd | Wholesale & retail | 2022 |
| B.D.G. Manufacturing (Holdings) Ltd | Professional & scientific | 2015 |
| B.D.G. Manufacturing Ltd | Manufacturing | 1941 |
| B.E.M Projects and Facilities Management Limited | Manufacturing | 2016 |
| B.G. Transport and Logistics Services UK Ltd | Transport & logistics | 2025 |
| B.G.Sheet Metal Co.Limited | Manufacturing | 1963 |
| B.H. Seals (Bham) Limited | Manufacturing | 1994 |
| B.H.Leake & Sons Limited | Manufacturing | 1972 |
| B.I.G Homes Limited | Real estate | 2024 |
| B.I.G International (UK) Limited | Transport & logistics | 2007 |
| B.I.G Storage and Processing Ltd | Administrative & support | 2019 |
| B.J.E. Banks (Outfitters) Limited | Wholesale & retail | 1964 |
| B.K.Jandu Property Ltd | Real estate | 2021 |
| B.Kerins & Co.(Contractors)Limited | Construction | 1970 |
| B.L.K Brickwork Ltd | Extraterritorial | 2017 |
| B.L.S.S. (Hall Green) Limited | Wholesale & retail | 2000 |
| B.M.A Global Ltd | Professional & scientific | 2017 |
| B.M.B Tech Ltd | Other services | 2017 |
| B.M.Marli Limited | Households | 2025 |
| B.M.S. (Cookware) Limited | Professional & scientific | 1982 |