| AW Midlands Construction Limited | Construction | 2024 |
| Awais Khan Ltd | Wholesale & retail | 2025 |
| Awan Transport Ltd | Transport & logistics | 2018 |
| Axentra Holdings & Investments Ltd | Financial services | 2024 |
| Axentra Innovations Ltd | Wholesale & retail | 2024 |
| Axiom Tools (Dudley) Limited | Manufacturing | 1969 |
| Axis Construction Management Ltd | Construction | 2025 |
| Axwoven UK Limited | Administrative & support | 2016 |
| Ayaan Courier Services Limited | Transport & logistics | 2018 |
| Ayaan Skin Doctor Limited | Wholesale & retail | 2018 |
| Ayesha Tariq Ltd | Public administration | 2022 |
| Azaan Housings Ltd | Real estate | 2024 |
| Azha Traders Ltd | Administrative & support | 2026 |
| AZI Accountancy Services Ltd | Professional & scientific | 2019 |
| Azman Transport Services Ltd | Transport & logistics | 2024 |
| B & C Building and Carpentry Ltd | Construction | 2015 |
| B & W Commercials (Holdings) Limited | Wholesale & retail | 2020 |
| B & W Commercials Limited | Wholesale & retail | 1994 |
| B and C West Midlands Limited | Other services | 2024 |
| B C Stockford & Co Limited | Professional & scientific | 2003 |
| B J Car Salvage Limited | Wholesale & retail | 2016 |
| B M Forktrucks Ltd | Other services | 2019 |
| B M Plant Sales Ltd | Wholesale & retail | 2015 |
| B P Mobile Welding Services Ltd | Manufacturing | 2026 |
| B&F Flooring Limited | Construction | 2010 |
| B&L Accountants Ltd | Professional & scientific | 2010 |
| B. H. Thai Catering Limited | Hospitality | 2016 |
| B.L.R. Stainless Products Limited | | 1988 |
| B.R.Builders 01 Ltd | Construction | 2024 |
| B.S.F. Investments Limited | Real estate | 1998 |
| B.S.L. Properties UK Limited | Real estate | 1999 |
| B2B Exhibitions Ltd | Other services | 2009 |
| B3 Property Developments Limited | Real estate | 2005 |
| Baaz Investment Holdings Ltd | Real estate | 2025 |
| Baby Dollz Aesthetics Ltd | Other services | 2025 |
| Badger Electrical Services Limited | Construction | 2009 |
| Badger Global Enterprises Ltd | Information & communication | 2023 |
| BAE Cleaning Ltd | Transport & logistics | 2025 |
| Baggeridge Holdings Ltd | Financial services | 2020 |
| Baggeridge Social Club Limited | Hospitality | 2000 |
| BAH Best Logistics Ltd | Transport & logistics | 2025 |
| Bailey & Brown Ltd | Construction | 2018 |
| Bailey Bradley Ltd | Construction | 2018 |
| Bake My Day (West Midlands) Ltd | Manufacturing | 2023 |
| Baker and Wilkes Limited | Manufacturing | 1974 |
| Baljinder Brar Ltd | Construction | 2019 |
| Ball and Reign Ltd | Manufacturing | 2020 |
| Ballard Property Development Limited | Real estate | 2020 |
| Ballast Ltd | Administrative & support | 2023 |
| Balmoral Court (Dawley) Management Company Limited | Households | 2006 |
| Balquis Interiors Ltd | Wholesale & retail | 2022 |
| Balustrade UK Limited | Manufacturing | 2003 |
| Balutad Auto Ltd | Wholesale & retail | 2021 |
| Bamidele Ayankoso Ltd | Administrative & support | 2016 |
| Banair (Holdings) Ltd | Financial services | 2019 |
| Bandala Group Ltd | Real estate | 2025 |
| Bandit Ventures Limited | Arts & recreation | 2012 |
| Banham Property Ltd | Hospitality | 2024 |
| Banner of Peace Limited | Real estate | 2013 |
| Bannerbrook Grange (Coventry) Management Company Limited | Households | 2009 |
| Banners of Dudley | | 1991 |
| BAO Limited | Health & social care | 2013 |
| Bar Diva Dudley Ltd | Hospitality | 2017 |
| Bar Sport Brands Limited | Administrative & support | 2010 |
| Barak Care Services Limited | Health & social care | 2024 |
| Bargain Resell Limited | Wholesale & retail | 2024 |
| Baristro Limited | Hospitality | 2025 |
| Barkah Ltd | Wholesale & retail | 2025 |
| Barmy Prints Ltd | Manufacturing | 2022 |
| Barnfather Ltd | Extraterritorial | 2023 |
| Baron Cart.Co Ltd | Wholesale & retail | 2026 |
| Baron U.K. Limited | Wholesale & retail | 2003 |
| Baronford Investments Limited | Households | 2019 |
| Bartram Investment Group Limited | Real estate | 2025 |
| Bartrams Sales & Lettings Limited | Real estate | 2003 |
| Baruch Horizen Ltd | Real estate | 2025 |
| BASE-10 Cleaning Services Limited | Administrative & support | 2024 |
| Baskerville Real Estate Limited | Real estate | 2015 |
| Baskerville Ventures Limited | Financial services | 2012 |
| Bastion Online Advertising Ltd | Professional & scientific | 2026 |
| BATCH17 Limited | Wholesale & retail | 2026 |
| Bateman Holdings Limited | Financial services | 2015 |
| Bateman Property Development Ltd | Real estate | 2024 |
| Batoum Properties Limited | Real estate | 2025 |
| Battery Services Ltd | Wholesale & retail | 2009 |
| Baxters Barbershop Ltd | Other services | 2024 |
| Baynam Books Press Ltd | Information & communication | 2025 |
| Baytree Adventures Limited | Financial services | 2022 |
| BB Buckley Property Ltd | Real estate | 2026 |
| BBB C&P Ltd | Construction | 2024 |
| BBS Autosyphons Limited | Extraterritorial | 1998 |
| Bbtaa Team Ltd | Professional & scientific | 2019 |
| BC Car Detailing Ltd | Administrative & support | 2026 |
| BC Motis Limited | Hospitality | 2008 |
| Bccs Holdings and Investments Ltd | Financial services | 2024 |
| Bcda Services Ltd | Real estate | 2023 |
| BCP Builders Ltd | Construction | 2025 |
| Bcph Holdings & Investments Ltd | Financial services | 2026 |
| BCV Designs Limited | Other services | 2021 |
| BCV Properties Limited | Real estate | 2023 |