| Azfk Ltd | Wholesale & retail | 2024 |
| Azmar Halal Butchers Ltd | Wholesale & retail | 2025 |
| B and D 1 Limited | Real estate | 2025 |
| B and D Energy Consultants Ltd | Professional & scientific | 2019 |
| B G Taverns Ltd | Hospitality | 2022 |
| B Hairstylist Ltd | Health & social care | 2020 |
| B S Dhanda Ltd | Hospitality | 2023 |
| B S Maan Construction Ltd | Construction | 2026 |
| B Singh Enterprise Ltd | Transport & logistics | 2024 |
| B&P Canopy & Extraction Hygiene Cleaning Ltd | Administrative & support | 2025 |
| B&R Bifold Fittings Ltd | Construction | 2025 |
| B&R Windows Frames Ltd | Construction | 2019 |
| B.K.T. Courier Services UK Ltd | Transport & logistics | 2026 |
| B101 Crew Ltd | Administrative & support | 2021 |
| B6 Glazing Ltd | Construction | 2025 |
| B66 Limited | Professional & scientific | 2018 |
| B68 Limited | Hospitality | 2015 |
| Baaz Trucking Ltd | Transport & logistics | 2019 |
| Baba Glow Windows Ltd | Construction | 2013 |
| Baby Gems Playhouse Limited | Education | 2010 |
| Babystepschildcare Ltd | Health & social care | 2022 |
| Back 2 Back Fitness Academy Limited | Arts & recreation | 2011 |
| BAD Noise Ltd | Information & communication | 2015 |
| Bada Properties Limited | Real estate | 2022 |
| BAF Properties WM Ltd | Real estate | 2026 |
| Baguette Bar Company Ltd | Wholesale & retail | 2025 |
| BAI Group Ltd | Information & communication | 2024 |
| Baidwan Properties Limited | Real estate | 2023 |
| Baines Drinks Ltd | Wholesale & retail | 2020 |
| Bajwa Courier Ltd | Transport & logistics | 2019 |
| BAKE4LOV Ltd | Manufacturing | 2019 |
| Bakerfield IT Ltd | Construction | 2020 |
| Bakersfield Software Ltd | Construction | 2020 |
| Bakhanbeauty Limited | Other services | 2026 |
| Bakhtani Enterprise Ltd | Hospitality | 2025 |
| Bakhushop Ltd | Wholesale & retail | 2021 |
| BAL Courier Ltd | Transport & logistics | 2017 |
| Bala Properties Management Services Ltd | Real estate | 2018 |
| Bala Property Investments Ltd | Real estate | 2024 |
| Balanced Bowls Ltd | Wholesale & retail | 2025 |
| Balanetics Software Ltd | Information & communication | 2022 |
| BALDE465 Limited | Transport & logistics | 2025 |
| Balm in Gilead Ltd | Agriculture & fishing | 2020 |
| Balman Import & Export Limited | Wholesale & retail | 2006 |
| Balmoral (Walsall) Limited | Extraterritorial | 1988 |
| Balpuria Couriers and Logistics Ltd | Transport & logistics | 2024 |
| Baltimore Projects Ltd | Construction | 2020 |
| Baltimore Software Ltd | Construction | 2020 |
| BAM 1 Limited | Real estate | 2025 |
| Banana Walsall Limited | Wholesale & retail | 2023 |
| Baniglazing Ltd | Construction | 2026 |
| Bannerpark Limited | Manufacturing | 1987 |
| Bansal Homes Ltd | Real estate | 2026 |
| Baqoshi Brothers Ltd | Wholesale & retail | 2025 |
| Bar Liminal Ltd | Hospitality | 2025 |
| Baro BAX Ltd | Hospitality | 2025 |
| Bartholamew Lodge Nursing Home Limited | Health & social care | 1991 |
| Basava Ltd | Real estate | 2022 |
| BASH3214 Ltd | Hospitality | 2025 |
| Basra Builders Limited | Construction | 2010 |
| Bassi Builders Ltd | Construction | 2011 |
| Bassi Sweets Ltd | Wholesale & retail | 2021 |
| Batra's Convenience Limited | Wholesale & retail | 2026 |
| Baxton’S Care Ltd | Health & social care | 2021 |
| Bay Digital World Ltd | Information & communication | 2025 |
| Bayliss (Garages) Limited | Wholesale & retail | 1960 |
| Bayliss Garages (Holdings) Limited | Wholesale & retail | 2010 |
| Bayt Al-Amanah Ltd | Real estate | 2026 |
| BAZ Industries Ltd | Wholesale & retail | 2026 |
| Bazaar Buzz Limited | Wholesale & retail | 2026 |
| BBG Motors UK Ltd | Wholesale & retail | 2022 |
| BBI Express Ltd | Transport & logistics | 2025 |
| BBN Construction Ltd | Construction | 2024 |
| Bbrn 1 Ltd | Real estate | 2025 |
| Bbuys Electrical Limited | Construction | 2015 |
| Bbuys Limited | Wholesale & retail | 2008 |
| Bbuys Property Maintenance Limited | Construction | 2015 |
| BBX Product UK Ltd | Wholesale & retail | 2020 |
| BCC Passenger Transport Ltd | Transport & logistics | 2021 |
| BCM Building Construction Merchant Ltd | Construction | 2016 |
| BCM Constructions (UK) Ltd | Construction | 2013 |
| BCM Constructions (West) Ltd | Construction | 2015 |
| BCM Developments (Bham) Ltd | Real estate | 2019 |
| BCM Glazing & Shopfronts Ltd | Construction | 2024 |
| BCM Group (Bham) Ltd | Construction | 2018 |
| Bdee Ltd | Transport & logistics | 2025 |
| BDK Investments Ltd | Real estate | 2017 |
| BDS Freightways Ltd | Transport & logistics | 2023 |
| BDS Services Limited | Construction | 2025 |
| Bdsb Properties Limited | Real estate | 2004 |
| BE Blessed UK Ltd | Education | 2021 |
| BE Success Recruitment Limited | Administrative & support | 2025 |
| Beacon Books Publication Ltd | Information & communication | 2016 |
| Beanie Boat Ltd | Wholesale & retail | 2021 |
| Bear Bookshop Limited | Wholesale & retail | 2020 |
| Bearwood Auto Sales Limited | Wholesale & retail | 2024 |
| Bearwood Baguette Ltd | Hospitality | 2017 |
| Bearwood Booze Ltd | Wholesale & retail | 2026 |
| Bearwood Express Ltd | Wholesale & retail | 2025 |
| Bearwood Happy CAF Ltd | Hospitality | 2025 |