| BDH Chase Ltd | Real estate | 2022 |
| BDP UK Properties Ltd | Real estate | 2022 |
| BDS Manufacturing Ltd | Wholesale & retail | 2025 |
| Bdsj Renovations Ltd | Construction | 2024 |
| Be.Shanti Limited | Health & social care | 2024 |
| BEA Cleaning Limited | Administrative & support | 2025 |
| Beacon Machine Tools (1980) Limited | Manufacturing | 1969 |
| Beacon Print 247 Limited | Manufacturing | 2016 |
| Beaconview Supermarket Ltd | Wholesale & retail | 2022 |
| Bear N BOW Creation Ltd | Transport & logistics | 2025 |
| Bearwood Phones & Vapes Ltd | Wholesale & retail | 2026 |
| Beauty Body Centre Ltd | Other services | 2012 |
| Beauty for Ashes Ltd | Extraterritorial | 2023 |
| Bedsha Properties Limited | Real estate | 2024 |
| Beeches Ventures Limited | Financial services | 2020 |
| Beehive WB Ltd | Education | 2021 |
| Bellcliffe Engineering Limited | Manufacturing | 2016 |
| Belting Service Ltd | Manufacturing | 2003 |
| Berkley Consultant Ltd | Administrative & support | 2024 |
| Bespace Property Management Ltd | Real estate | 2019 |
| Bespoke Autos Ltd | Wholesale & retail | 2018 |
| Bessie Care Solutions Ltd | Health & social care | 2022 |
| Besso Distribution Ltd | Wholesale & retail | 2024 |
| Best Choice Catering Ltd | Hospitality | 2018 |
| Best Cutz Ltd | Other services | 2022 |
| Best Cutz Pro Ltd | Other services | 2026 |
| Best Dream Builder U.K. Ltd | Construction | 2024 |
| Best Homes Builder Ltd | Construction | 2019 |
| Best Quality Stores (BQS) Limited | Wholesale & retail | 2021 |
| Beverley Interiors Ltd | Construction | 2015 |
| Beyond (Coleshill) Ltd | Real estate | 2021 |
| Beyond (Exchange) Ltd | Real estate | 2021 |
| Beyond (Holloway) Ltd | Real estate | 2017 |
| Beyond (Intersection) Ltd | Real estate | 2018 |
| Beyond (Kaizen) Ltd | Real estate | 2024 |
| Beyond (Lombard Holding) Ltd | Other services | 2019 |
| Beyond (Lombard LH) Ltd | Real estate | 2019 |
| Beyond (Lombard) Ltd | Real estate | 2017 |
| Beyond (Shinka) Limited | Real estate | 2022 |
| Beyond Group of Companies Ltd | Real estate | 2022 |
| Beyond Property Group Holdings PLC | Real estate | 2022 |
| Bfca Ltd | Wholesale & retail | 2023 |
| BFK Transport Ltd | Transport & logistics | 2022 |
| BGJ Motorsport Ltd | Wholesale & retail | 2022 |
| BGN Boards (Holdings) Limited | Financial services | 2014 |
| BGR Estates Ltd | Real estate | 2024 |
| BH Investment Properties Limited | Real estate | 2025 |
| Bham Building Co Ltd | Construction | 2023 |
| Bhamraa Constructions Ltd | Construction | 2022 |
| Bhamraa Properties Ltd | Real estate | 2024 |
| Bhangu Carriers Ltd | Transport & logistics | 2026 |
| Bharawan DA DHABA-2 Ltd | Wholesale & retail | 2023 |
| Bhatia Builder Ltd | Construction | 2022 |
| Bhatia Sweet Centre Ltd | Hospitality | 2025 |
| Bhinder Food and Wings Ltd | Wholesale & retail | 2012 |
| Bhogal Builders Midlands Ltd | Construction | 2024 |
| Bhogal Housing Ltd | Real estate | 2016 |
| Bhuchar Properties Ltd | Real estate | 2019 |
| Bhullar Constructions UK. Ltd | Construction | 2022 |
| Bibiana Confererence Hall Ltd | Other services | 2024 |
| Bien Dong Ltd | Real estate | 2024 |
| Bifold&Sliding Door Systems Ltd | Manufacturing | 2018 |
| Big Bite Grill House Limited | Hospitality | 2024 |
| Big Easy Shipping Limited | Wholesale & retail | 2019 |
| Big Fish Contractors Limited | Construction | 2025 |
| Big MAK West Brom Ltd | Hospitality | 2023 |
| Bihewari Ltd | Information & communication | 2025 |
| Bihola Real Estate Ltd | Real estate | 2021 |
| Biholas Ltd | Real estate | 2025 |
| Bijou Retreats Ltd | Hospitality | 2024 |
| Bill & Suki Holdings Ltd | Real estate | 2025 |
| Bill House Properties Limited | Real estate | 2023 |
| Bill's Enterprises Midlands Ltd | Wholesale & retail | 2022 |
| BIN Store Co Ltd | Wholesale & retail | 2025 |
| Binda Catering Limited | Hospitality | 2026 |
| BIO Green Design & Build Limited | Construction | 2023 |
| Biomass RS Limited | Energy | 2017 |
| Birch Day Care Ltd | Health & social care | 2025 |
| Birmingham Door Panels Ltd | Extraterritorial | 2016 |
| Birmingham Doors Ltd | Extraterritorial | 2016 |
| Birmingham Road Properties Limited | Construction | 2021 |
| Birmingham Travel Agency Ltd | Administrative & support | 2025 |
| Biro Group Limited | Wholesale & retail | 2026 |
| Bishnoi Brothers Ltd | Wholesale & retail | 2025 |
| Bishop Ltd | Construction | 2017 |
| Bishop Recruitment Limited | Administrative & support | 2021 |
| Bisla Construction Ltd | Construction | 2019 |
| Bist Doab Logistics Limited | Transport & logistics | 2025 |
| Bite & Bolt Ltd | Hospitality | 2026 |
| BJY 713 Limited | Hospitality | 2021 |
| BK Assets Limited | Financial services | 2025 |
| BK Mehmi Construction Ltd | Construction | 2020 |
| BK Optical Services Limited | Health & social care | 2014 |
| BL Residences Limited | Real estate | 2024 |
| Black Country Chippy Limited | Wholesale & retail | 2010 |
| Black Country Women's AID | Hospitality | 1993 |
| Black Dog Pest Solutions UK Limited | Agriculture & fishing | 2022 |
| Black Foster Carers Alliance CIC | Education | 2023 |
| Blakemore Road West Bromwich Limited | Real estate | 2014 |
| Blessbliful Care Recruitment Agency Limited | Administrative & support | 2021 |