| Bula Shop Ltd | Wholesale & retail | 2025 |
| Bulat Bikes Ltd | Wholesale & retail | 2023 |
| Bulk Couture Limited | Wholesale & retail | 2025 |
| Bulk Goods Ltd | Wholesale & retail | 2024 |
| Bulk Supply Warehouse Ltd | Wholesale & retail | 2025 |
| Bulk Tees 2012 Limited | Professional & scientific | 2012 |
| Bulkeley Investments Ltd | Financial services | 2024 |
| Bulktrove Limited | Wholesale & retail | 2025 |
| Bull Logistics Limited | Transport & logistics | 2024 |
| Bull Property Limited | Real estate | 2017 |
| Bulldog Fashions Limited | Real estate | 1978 |
| Bulle Transport Company Ltd | Transport & logistics | 2020 |
| Buller Engineering Services Ltd | Other services | 2014 |
| Bullet Project Limited | Professional & scientific | 1998 |
| Bulletproof Agency Network Limited | Administrative & support | 2017 |
| Bullion Outlet Limited | Wholesale & retail | 2026 |
| Bullk Clothing Limited | Wholesale & retail | 2015 |
| Bullroad Ltd | Information & communication | 2022 |
| Bulls EYE 1 Services Limited | Administrative & support | 2022 |
| Bullwell Ltd | Wholesale & retail | 2024 |
| Bullwhip Ltd | Information & communication | 2025 |
| Bully Elite Ltd | Other services | 2019 |
| Bully Elite Training & Hydro Ltd | Other services | 2019 |
| Bulthi HUT Ltd | Hospitality | 2026 |
| Bumble Autos Limited | Wholesale & retail | 2025 |
| Bumble Trumble Limited | Wholesale & retail | 2024 |
| Bumblebee Marketing and Communications Ltd | Professional & scientific | 2014 |
| Bumblebee Woodland Trust Limited | Other services | 1998 |
| Bumblefit Ltd | Health & social care | 2025 |
| Bump & Beyond Ryecroft Day Nursery Limited | Health & social care | 2023 |
| Bump Health Ltd | Health & social care | 2012 |
| Bums Ltd | Financial services | 2025 |
| BUN and Smoke Ltd | Hospitality | 2025 |
| Bunch Floral Design Ltd | Wholesale & retail | 2020 |
| Bundles Department Limited | Information & communication | 2010 |
| Bundlify Limited | Wholesale & retail | 2024 |
| Bunmo Limited | Wholesale & retail | 2025 |
| Bunnell Roofing Ltd | Construction | 2025 |
| Bunni Estate Ltd | Real estate | 2018 |
| Bunnies Limited | Hospitality | 2025 |
| Bunnies That Lunch Ltd | Wholesale & retail | 2017 |
| Bunny Bound Media Ltd | Professional & scientific | 2025 |
| Buns Baked Goods Ltd | Manufacturing | 2024 |
| Buntoun Motors Limited | Wholesale & retail | 2024 |
| Bunya for Integrated Services & Business Ltd | Other services | 2024 |
| Bunzburger & Shakes Limited | Hospitality | 2026 |
| Bunzilla Ltd | Hospitality | 2023 |
| Buoy Ltd | Wholesale & retail | 2023 |
| Buoyancy Solutions Ltd | Health & social care | 2024 |
| Buoyee Limited | Other services | 2021 |
| BUP Mark Limited | Professional & scientific | 2024 |
| Bupang International Ltd | Wholesale & retail | 2023 |
| Bupo Solutions Ltd | Administrative & support | 2026 |
| Buraaq Foods Ltd | Wholesale & retail | 2022 |
| Burak Transport & Solutions Ltd | Transport & logistics | 2018 |
| Buraq Accounting Firm Ltd | Professional & scientific | 2015 |
| Buraq Construction Ltd | Real estate | 2024 |
| Buraq Construction Services Ltd | Construction | 2023 |
| Buraq Estates Ltd | Real estate | 2013 |
| Buraq Estates MCR Ltd | Real estate | 2021 |
| Buraq Online Traders Ltd | Wholesale & retail | 2019 |
| Buraq Properties (MCR) Ltd | Real estate | 2024 |
| Buraq Residential Ltd | Real estate | 2016 |
| Buras Transport Ltd | Administrative & support | 2016 |
| Buraya Ltd | Administrative & support | 2024 |
| Buraz Ltd | Wholesale & retail | 2026 |
| Burberry Homes Ltd | Construction | 2018 |
| Burdett Offices Ltd | Real estate | 2016 |
| Burdtec Industries Ltd | Information & communication | 2026 |
| Bureau of International Certification Ltd | Extraterritorial | 2025 |
| Bureau One Zero Ltd | Arts & recreation | 2024 |
| Bureau Veritas Commodity Services Limited | Professional & scientific | 1992 |
| Burfam Products Ltd | Wholesale & retail | 2017 |
| Burford Court Management Limited | Households | 2000 |
| Burgaboy Ltd | Arts & recreation | 2026 |
| Burgeon Business Services Ltd | Administrative & support | 2017 |
| Burgeon Business Solutions Ltd | Wholesale & retail | 2021 |
| Burger Addict Ltd | Hospitality | 2025 |
| Burger and Masal House Ltd | Hospitality | 2025 |
| Burger Bazar Limited | Hospitality | 2026 |
| Burger BEE Ltd | Hospitality | 2023 |
| Burger Buns Ltd | Hospitality | 2026 |
| Burger Eats (MCR) Ltd | Hospitality | 2026 |
| Burger Express Bolton Ltd | Hospitality | 2021 |
| Burger Heaven WF Ltd | Hospitality | 2024 |
| Burger Joint Chunk Ltd | Hospitality | 2024 |
| Burger N Shake SIP Limited | Hospitality | 2024 |
| Burger Plus Food Brands Ltd | Hospitality | 2025 |
| Burger Shack MCR Ltd | Hospitality | 2019 |
| Burger Stop Franchise Ltd | Hospitality | 2025 |
| Burger Stop Manchester Ltd | Hospitality | 2024 |
| Burger Stop Sale Ltd | Hospitality | 2020 |
| Burger Stop Salford Ltd | Hospitality | 2024 |
| Burgereato Limited | Hospitality | 2025 |
| Burgerism Ltd | Hospitality | 2026 |
| Burgerzilla Ltd | Hospitality | 2025 |
| Burgess Brothers (Bolton) Limited | Transport & logistics | 2000 |
| Burgess Drywall Limited | Construction | 2018 |
| Burgess Drywall Manchester Limited | Construction | 2023 |
| Burgess Security Systems Limited | Administrative & support | 2015 |