| Bonds Holdings Limited | Wholesale & retail | 2015 |
| Bonds Property Repairs Ltd | Construction | 2024 |
| Bondtiles Ltd | Construction | 2025 |
| Bondvoyage Ltd | Administrative & support | 2025 |
| Bondwest Ltd | Professional & scientific | 2021 |
| Bonefide Ltd | Information & communication | 2023 |
| Bonehead Birmingham Ltd | Hospitality | 2017 |
| Bongix Ltd | Professional & scientific | 2025 |
| Bongo Brasserie Limited | Hospitality | 2019 |
| Bongsload Ltd | Health & social care | 2022 |
| Bonita Holdings Ltd | Real estate | 2026 |
| Bonita Smile Ltd | Health & social care | 2021 |
| Bonjoor Ltd | Wholesale & retail | 2023 |
| Bonjour Driver Limited | Transport & logistics | 2022 |
| Bonne Terre Gaming Limited | Arts & recreation | 2024 |
| Bonnetts Fullfillment Limited | Transport & logistics | 2025 |
| Bonneville Cleaning Services Ltd | Administrative & support | 2023 |
| Bonneville Group Ltd | Financial services | 2023 |
| Bonnie Bramble Limited | Financial services | 2024 |
| Bonoful Mishti Ltd | Other services | 2026 |
| Bonus International Ltd | Wholesale & retail | 2025 |
| Bonzali Ltd | Wholesale & retail | 2025 |
| Bonzo+ Ltd | Wholesale & retail | 2019 |
| Boo'D UP Ltd | Other services | 2018 |
| Booboo Retail Trading (Leicester) Ltd | Hospitality | 2022 |
| Boocock Trading Limited | Financial services | 2003 |
| Boodah Consulting Limited | Information & communication | 2014 |
| Boodle Fight UK Ltd | Hospitality | 2025 |
| Booghe Toys Limited | Wholesale & retail | 2012 |
| Booghe Toys Retail Ltd | Wholesale & retail | 2023 |
| Book a GP Ltd | Health & social care | 2015 |
| Book and Brew Ltd | Wholesale & retail | 2021 |
| Book at ME Limited | Wholesale & retail | 2021 |
| Book Health Limited | Information & communication | 2022 |
| Book VIA Ltd | Information & communication | 2025 |
| Bookaclean Ltd | Administrative & support | 2023 |
| Booked Cars Ltd | Transport & logistics | 2022 |
| Booked. Dent Ltd | Information & communication | 2026 |
| Bookinglab Limited | Information & communication | 2019 |
| Bookkeeper Services Limited | Professional & scientific | 2019 |
| Bookmakers of Birmingham Limited | Real estate | 1963 |
| Bookmydine Ltd | Information & communication | 2025 |
| Bookspace Ltd | Professional & scientific | 2020 |
| Bookwise Accountants Ltd | Professional & scientific | 2024 |
| Bookyup.Com Ltd | Information & communication | 2017 |
| Boombuy Limited | Wholesale & retail | 2025 |
| Boomerang Commercials Ltd | Wholesale & retail | 2025 |
| Boost Digital Media Ltd | Professional & scientific | 2010 |
| Boost Digital Services Ltd | Information & communication | 2025 |
| Booster Health Care Services Ltd | Health & social care | 2024 |
| Booster Learning Limited | Education | 2020 |
| Booster Properties Investment Limited | Households | 2021 |
| Booster Property Investment Ltd | Real estate | 2017 |
| Boostify Creatives Ltd | Information & communication | 2025 |
| Bootcamp Media Limited | Information & communication | 2012 |
| Booth Construction Solutions Ltd | Construction | 2019 |
| Booth Street Estates Ltd | Real estate | 2021 |
| Bootsie Carpentry Limited | Construction | 2026 |
| Booz Busters (Plymouth) Ltd | Wholesale & retail | 2011 |
| Booze & Beverages Ltd | Wholesale & retail | 2020 |
| Boozeburst Ltd | Wholesale & retail | 2016 |
| Boparan Brands Limited | Wholesale & retail | 2022 |
| Boparan Events Limited | Administrative & support | 2012 |
| Boparan Family Trustee Limited | Professional & scientific | 2014 |
| Boparan Holdco Limited | Professional & scientific | 2011 |
| Boparan Manufacturing Group Limited | Financial services | 2016 |
| Boparan Midco Limited | Professional & scientific | 2011 |
| Boparan Private Office Limited | Financial services | 2021 |
| Boparan Restaurants Holdings Limited | Financial services | 2016 |
| Boporea Group Ltd | Wholesale & retail | 2024 |
| Borab Ltd | Professional & scientific | 2015 |
| Boraq Housing Ltd | Real estate | 2026 |
| Borark Ltd | Manufacturing | 2022 |
| Borda Properties Limited | Real estate | 2025 |
| Bordeaux Cycle Tours Limited | Administrative & support | 2008 |
| Border Bridge Export Limited | Transport & logistics | 2023 |
| Borderless TEK Ltd | Information & communication | 2024 |
| Borderless UK Holdings Ltd | Information & communication | 2023 |
| Bordesley Alloy Wheel Centre Ltd | Wholesale & retail | 2020 |
| Bordesley Apartments Limited | Real estate | 2024 |
| Bordesley East PCN Limited | Health & social care | 2023 |
| Bordesley Green Centre Ltd | Health & social care | 2025 |
| Bordesley Green MOT Ltd | Wholesale & retail | 2019 |
| Bordesley Green Valeting Center Ltd | Administrative & support | 2020 |
| Bordesley Mobile Tyre Services Ltd | Wholesale & retail | 2026 |
| Bordesley Properties Limited | Real estate | 1996 |
| Bordesley Service Station Ltd | Wholesale & retail | 2019 |
| Bordesley Tyre Services Ltd | Wholesale & retail | 2018 |
| Bordesley Village DP Ltd | Health & social care | 2021 |
| Bordesly Offlicence's I Ltd | Wholesale & retail | 2026 |
| Bordo Design Ltd | Construction | 2021 |
| Bored Wreckers Inc Limited | Manufacturing | 2020 |
| Bored Wreckers Marketplace Ltd | Manufacturing | 2024 |
| Borehole Calibration and Testing Solutions Ltd | Manufacturing | 2018 |
| Borehole Solutions (North) Limited | Construction | 2017 |
| Borehole Solutions Group Ltd | Financial services | 2018 |
| Borehole Solutions Ltd | Construction | 2014 |
| Borhanco Group UK Ltd | Professional & scientific | 2021 |
| Born Beautiful Ltd | Other services | 2022 |
| Born Tasty Limited | Wholesale & retail | 2008 |