| Azsha Horizons Limited | Households | 2023 |
| Aztec CKM Limited | Health & social care | 2013 |
| Aztec Holding LP | | 2017 |
| Aztex Controls Ltd | Information & communication | 2023 |
| Azulejo Limited | Real estate | 2026 |
| Azure Aesthetics Limited | Wholesale & retail | 2020 |
| Azure Consultancy Services Ltd | Information & communication | 2019 |
| Azure Developments Limited | Construction | 2002 |
| Azure Health and Medical Ltd | Health & social care | 2022 |
| Azure Property Solutions Limited | Real estate | 2023 |
| Azure Residential Limited | Real estate | 2024 |
| Azure Sky Property Limited | Households | 2025 |
| Azure Window Cleaning Services Ltd | Administrative & support | 2024 |
| Azurebecca Limited | Health & social care | 2023 |
| Azuri Creations Ltd | Other services | 2024 |
| AZW Healthcare Ltd | Health & social care | 2021 |
| AZW Properties Ltd | Real estate | 2026 |
| AZZ Property Services Limited | Real estate | 2025 |
| Azzaman PVT Ltd | Wholesale & retail | 2019 |
| Azzan Properties Ltd | Real estate | 2020 |
| Azzo Investment Ltd | Professional & scientific | 2025 |
| B & a Contractors Limited | Construction | 2026 |
| B & B Glazing Limited | Other services | 2018 |
| B & G Consulting Engineers Limited | Professional & scientific | 2016 |
| B & H Cash and Carry Ltd | Hospitality | 2025 |
| B & H Plant Hire Limited | Wholesale & retail | 2006 |
| B & I Convenience Store Ltd. | Wholesale & retail | 2017 |
| B & L Property Investments Limited | Health & social care | 2002 |
| B & M Grocery Ltd | Wholesale & retail | 2024 |
| B & M Investments (Midlands) Ltd | Financial services | 2025 |
| B & M Universal Services Ltd | Construction | 2019 |
| B & N Murria Properties Limited | Real estate | 2024 |
| B & Q Financial Services Limited | Financial services | 2006 |
| B & R (Roofing Contractors) Limited | | 1980 |
| B & R Fruits and VEG Merchants Limited | Wholesale & retail | 2019 |
| B & R Quality Building Services Limited | Construction | 2017 |
| B & R Rental Services Ltd | Real estate | 2025 |
| B & S Ceilings & Partitions Limited | Construction | 2010 |
| B & S Holdings Ltd | Financial services | 2022 |
| B & S Services (ENG) Limited | Manufacturing | 2008 |
| B & S Vale Ltd | Wholesale & retail | 2013 |
| B & T Rewinds (Holdings) Limited | Professional & scientific | 2004 |
| B & T Rewinds Limited | Construction | 1976 |
| B & T Trading Co (GB) Ltd | Wholesale & retail | 2013 |
| B . Rail Engineering Limited | Construction | 2022 |
| B 2024 Limited | Real estate | 2024 |
| B 23 Agent Limited | Wholesale & retail | 2025 |
| B a Boyle & SON Limited | Construction | 2020 |
| B a Housing Solutions Limited | Real estate | 2025 |
| B a K Limited | Wholesale & retail | 2007 |
| B a Locum Services Limited | Health & social care | 2002 |
| B a Schiller Limited | Other services | 2017 |
| B a Warehousing Ltd | Real estate | 2019 |
| B and a Property Clearances Ltd | Water & waste | 2024 |
| B and S Networks Limited | Information & communication | 2014 |
| B and S Wigmore Limited | Hospitality | 2016 |
| B B Connect Limited | Hospitality | 2013 |
| B Best Taste Limited | Hospitality | 2022 |
| B C Blinds Ltd | Other services | 2017 |
| B C H Property Limited | Other services | 2019 |
| B C J Delivery Limited | Other services | 2020 |
| B City Motors Ltd | Administrative & support | 2022 |
| B Contracting Limited | Other services | 2010 |
| B Cutz Barbers Ltd | Other services | 2023 |
| B D Demolitions Limited | Construction | 2015 |
| B D Healthcare Limited | Wholesale & retail | 2003 |
| B D Properties (Dudley Port) Ltd | Construction | 2024 |
| B D Properties (Midlands) Ltd | Real estate | 2017 |
| B Delivery Ltd | Transport & logistics | 2026 |
| B Empowered Limited | Health & social care | 2015 |
| B Events Presents Ltd | Professional & scientific | 2025 |
| B Executive Cars Limited | Transport & logistics | 2015 |
| B F R Holdings Limited | Construction | 2024 |
| B F R Limited | Construction | 2024 |
| B G Enterprise Limited | Water & waste | 2019 |
| B G I Developments Limited | Construction | 2020 |
| B Good Taste Ltd | Administrative & support | 2025 |
| B H C (Midlands) Ltd | Health & social care | 2023 |
| B H Mohammed Solicitors Ltd | Professional & scientific | 2003 |
| B J Banning (Holdings) Limited | Professional & scientific | 2002 |
| B J C Trading Limited | Wholesale & retail | 2017 |
| B J D (GB) Limited | Real estate | 2004 |
| B J Travel Services Ltd | Administrative & support | 2023 |
| B James Enterprise Ltd | Construction | 2014 |
| B K Windows Ltd | Construction | 2007 |
| B L H Realisations Limited | Manufacturing | 1901 |
| B M C Roofing & Cladding Limited | Construction | 2009 |
| B M Electrical and Security Limited | Construction | 2013 |
| B M Mobiles Ltd | Other services | 2018 |
| B Major CIC | Education | 2023 |
| B Mcclory Ltd | Wholesale & retail | 2017 |
| B Mccormick Anaesthesia Ltd | Health & social care | 2017 |
| B Miah Limited | Health & social care | 2019 |
| B Military Martial Arts Ltd | Education | 2018 |
| B My Chip Limited | Hospitality | 2020 |
| B Nails and Spa Limited | Other services | 2025 |
| B P F K Solutions Ltd | Construction | 2026 |
| B P Global Ltd | Real estate | 2019 |
| B Point Investments Ltd | Real estate | 2020 |
| B R K Properties Limited | Real estate | 2009 |