| Brews and Brunch Bolton Limited | Hospitality | 2025 |
| Brexit Law Limited | Professional & scientific | 2020 |
| BRG Pointing Limited | Construction | 2026 |
| Bri-Tek Limited | Wholesale & retail | 2016 |
| Bri-Tek Technologies Ltd | Manufacturing | 2010 |
| Brian Beck Consulting Limited | Professional & scientific | 2010 |
| Brian Cele Transport Ltd. | Transport & logistics | 2018 |
| Brian Nichols Limited | Wholesale & retail | 1991 |
| Brian Sutcliffe Packaging Limited | Manufacturing | 2000 |
| Briardane Limited | Manufacturing | 1999 |
| Briars Homecare Services Limited | Health & social care | 2005 |
| Brica Ltd | Real estate | 2020 |
| Brickart Ltd | Construction | 2021 |
| Brickbridge Investments Limited | Real estate | 2026 |
| Brickline Estate and Construction Services Ltd | Construction | 2024 |
| Bridal Attractions Ltd | Professional & scientific | 2020 |
| Bridal Couture Italia Limited | Wholesale & retail | 2023 |
| Bridalwear by Emma Louise Limited | Wholesale & retail | 2015 |
| Bride to BE Boxes Ltd | Other services | 2019 |
| Bridek Enterprises Limited | Real estate | 1975 |
| Bridge B&B Ltd | Hospitality | 2026 |
| Bridge Corporation Holdings Ltd | Financial services | 2019 |
| Bridge Corporation Properties Limited | Real estate | 2019 |
| Bridge Deane Ltd | Administrative & support | 2015 |
| Bridge Door Systems Holdings Limited | Financial services | 2020 |
| Bridge Door Systems Ltd | Administrative & support | 2014 |
| Bridge Door Systems NE Limited | Administrative & support | 2020 |
| Bridge Electrical Supplies Limited | Wholesale & retail | 2000 |
| Bridge Inn Horwich Limited | Hospitality | 2018 |
| Bridge Pharmacy Limited | Wholesale & retail | 1962 |
| Bridge Property Lettings Ltd | Real estate | 2026 |
| Bridge Roofing (NW) Limited | Construction | 2011 |
| Bridge Rooms Ltd | Hospitality | 2024 |
| Bridge School of Excellence Limited | Education | 2019 |
| Bridge Telecoms Ltd | Information & communication | 2013 |
| Bridge Vintners Limited | Wholesale & retail | 1983 |
| Bridge Wines and News Ltd | Wholesale & retail | 2024 |
| Bridge Works Project Limited | Construction | 2024 |
| Bridgeman Convenience Limited | Wholesale & retail | 2026 |
| Bridgeman Desserts Limited | Hospitality | 2024 |
| Bridgeman Investments Ltd | Real estate | 2017 |
| Bridgeman Street Motors T/A Empire Motors Ltd | Wholesale & retail | 2019 |
| Bridgepoint Financial Ltd | Professional & scientific | 2025 |
| Bridgewater Auto Windscreens Limited | Wholesale & retail | 2005 |
| Bridgewater Consultancy UK Ltd | Administrative & support | 2024 |
| Bridgewater Global Investments Limited | Financial services | 2016 |
| Bridgewater Heating Ltd | Construction | 2015 |
| Bridgewater Laminate Products Limited | Manufacturing | 1998 |
| Bridgewater Manufacturing Group Ltd | Manufacturing | 2018 |
| Bridgewater Property Finance Ltd | Construction | 2026 |
| Bridgewater Transport Limited | Transport & logistics | 2026 |
| Bridgewater Windscreens Limited | Extraterritorial | 2020 |
| Bridging Loans 4 U Limited | Financial services | 2016 |
| Brierley Estates Limited | Real estate | 2012 |
| Brierley Street Trade Centre Ltd | Wholesale & retail | 2025 |
| Bright & White Ltd | Construction | 2023 |
| Bright Bloom Trading Limited | Wholesale & retail | 2026 |
| Bright Direction Training Limited | Professional & scientific | 2010 |
| Bright Futures Childcare Limited | Health & social care | 2007 |
| Bright Futures Holdings Limited | Financial services | 2019 |
| Bright Home Charge Ltd | Manufacturing | 2025 |
| Bright Horizons GRH Ltd | Health & social care | 2025 |
| Bright Innovations Gateway Limited | Professional & scientific | 2011 |
| Bright Kidz Zone CIC | Education | 2026 |
| Bright Leaders Ltd | Education | 2021 |
| Bright Path Education Consultancy Ltd | Professional & scientific | 2025 |
| Bright Pathways Child Care Limited | Health & social care | 2025 |
| Bright Street Consulting Ltd | Professional & scientific | 2025 |
| Bright Sustainability Ltd | Information & communication | 2024 |
| Brighter Futures Foster Care Ltd | Health & social care | 2009 |
| Brightfabrics Ltd | Other services | 2019 |
| Brightmind Property Limited | Real estate | 2022 |
| Brightside Business Limited | Financial services | 2012 |
| Brightside Financial Planning LLP | | 2011 |
| Brightside Financial Planning NW Limited | Financial services | 2023 |
| Brightwave Online Ltd | Wholesale & retail | 2025 |
| Brilliant Links Limited | Wholesale & retail | 2024 |
| Brilliantbids Ltd | Professional & scientific | 2025 |
| Bringing Bargains to YOU Ltd | Wholesale & retail | 2026 |
| Brinnington Pharmacy Limited | Wholesale & retail | 2011 |
| Brinscall Care (GM) Ltd | Health & social care | 2021 |
| Brinscall Hall Barn Management Company Limited | Households | 2019 |
| Brinsop Ltd | Hospitality | 2025 |
| Brioche Brothers Manchester Ltd | Hospitality | 2024 |
| Brisk Global Consults Limited | Professional & scientific | 2023 |
| Brisk International UK Ltd | Wholesale & retail | 2024 |
| Brisk Property Ltd | Real estate | 2026 |
| Brit Beauty Limited | Wholesale & retail | 2017 |
| Brit Housing Limited | Real estate | 2022 |
| Britannia Inspection Services Ltd | Water & waste | 2020 |
| Britannia Medicare Limited | Health & social care | 2013 |
| Britannia Online Marketplace Limited | Wholesale & retail | 2021 |
| Britannia Realty Investors Ltd | Households | 2024 |
| Britannia Safe Deposit Ltd | Administrative & support | 2019 |
| Britch Commercial Finance Limited | Professional & scientific | 2025 |
| Britek Emergency Battery Limited | Manufacturing | 2016 |
| Britek Solar Ltd | Other services | 2022 |
| Briteshine Polish Co. Limited | Professional & scientific | 1994 |
| Britikoch Limited | Wholesale & retail | 2025 |
| British Turntable Co Limited | Manufacturing | 1960 |