| Bolad Ventures Ltd | Health & social care | 2017 |
| Bolaji Ltd | Information & communication | 2015 |
| Bold Bunny Limited | Professional & scientific | 2022 |
| Bold Fitness Limited | Arts & recreation | 2023 |
| Boldgrade Limited | Real estate | 1981 |
| Boldon Drilling Limited | Mining & quarrying | 1972 |
| Bolds Properties Ltd | Real estate | 2026 |
| Boldsubtle Limited | Professional & scientific | 2026 |
| Boleyn Ltd | Information & communication | 2024 |
| Boliem Ltd | Financial services | 2021 |
| Bolina Haulage Ltd | Transport & logistics | 2015 |
| Bolingey Management Limited | Professional & scientific | 2024 |
| Bolt Installations Ltd | Construction | 2025 |
| Bolt Self Storage Ltd | Transport & logistics | 2025 |
| Boltcinematics Ltd | Professional & scientific | 2025 |
| Bolthole Design Limited | Professional & scientific | 2019 |
| Bolton Plastic Components Limited | Manufacturing | 1983 |
| Bomanton Employees' Trustees Limited | Administrative & support | 1997 |
| Bombay Joe's Bingham Ltd | Hospitality | 2020 |
| Bona Fide Consulting Limited | Administrative & support | 2013 |
| Bonafide Interiors Ltd | Professional & scientific | 2025 |
| Bonam & Berry 4SD Limited | Construction | 2026 |
| Bonam & Berry Holdings Limited | Construction | 2018 |
| Bonam & Berry Limited | Manufacturing | 1974 |
| Bonaventura Sales UK Limited | Wholesale & retail | 2003 |
| Bond GB Holdings Ltd | Financial services | 2008 |
| Bond Lewis Ltd | Professional & scientific | 2019 |
| Bonds of Nottingham Ltd | Health & social care | 2020 |
| Bondswell Properties Limited | Real estate | 2007 |
| Bone Health Clinic Limited | Health & social care | 2026 |
| Bone Trans Ltd | Transport & logistics | 2019 |
| Bone Voyage Limited | Wholesale & retail | 2018 |
| Bonearrow Limited | Wholesale & retail | 2023 |
| Bonella Global Trading Ltd | Wholesale & retail | 2024 |
| Bongo Associates Limited | Information & communication | 2022 |
| Bongo Therapy Initiatives Limited | Health & social care | 2025 |
| Bonham Holdings Limited | Financial services | 2019 |
| Bonincontro House Ltd | Wholesale & retail | 2024 |
| Bonincontro Limited | Wholesale & retail | 2020 |
| Bonnamain Limited | Administrative & support | 1997 |
| Bonnello Ltd | Real estate | 2014 |
| Bonni M Limited | Transport & logistics | 2018 |
| Bonnie B Honey Ltd | Wholesale & retail | 2026 |
| Bonnington Plastics Limited | Wholesale & retail | 1977 |
| Bonsai Wealth Management Incorporated Ltd | Financial services | 2022 |
| Bonzai to Go Sushi Bar Limited | Hospitality | 2025 |
| Boof Media Ltd | Information & communication | 2025 |
| Boogie Microphone Ltd | Information & communication | 2025 |
| Boogles Global Ltd | Real estate | 2013 |
| Booglez Inc Limited | Information & communication | 2024 |
| Booglez Limited | Information & communication | 2013 |
| Book a Movement Ltd | Transport & logistics | 2018 |
| Book Properties Limited | Real estate | 2016 |
| Bookandrest Limited | Hospitality | 2024 |
| Booker Property Services Ltd | Real estate | 2015 |
| Bookings Group (Party) Ltd | Information & communication | 2025 |
| Bookitlist Group Ltd | Professional & scientific | 2017 |
| Booklaw Publications Ltd | Information & communication | 2022 |
| Bookmaster Distribution Limited | Wholesale & retail | 2006 |
| Bookmymot.Com Limited | Information & communication | 2026 |
| Bookwise Southwell | Wholesale & retail | 2007 |
| Boom Burgers Ltd | Hospitality | 2023 |
| Boom Coffee Ltd | Hospitality | 2022 |
| Boom Magazine Ltd | Professional & scientific | 2023 |
| Boomerang Construction Ltd | Construction | 2018 |
| Boomlux Cleaning Services Ltd | Administrative & support | 2025 |
| Boomrate Ltd | Health & social care | 2022 |
| Boony Ltd | Information & communication | 2021 |
| Boop Beauty Limited | Wholesale & retail | 2023 |
| Boost Potential Ltd. | Administrative & support | 2017 |
| Boost Your Body Limited | Arts & recreation | 2017 |
| Booster Box Rivals Limited | Wholesale & retail | 2026 |
| Booth & Derry (Electrical) Limited | Construction | 2006 |
| Booth Curie Limited | Professional & scientific | 2003 |
| Boothop BD Ltd | Information & communication | 2026 |
| Boothys Ltd | Construction | 2018 |
| Boots & Brambles Forest School Ltd | Health & social care | 2021 |
| Boots Digital Health Limited | Professional & scientific | 2020 |
| Boots International Management Services Limited | Administrative & support | 2010 |
| Boots Management Services Limited | Administrative & support | 2009 |
| Boots Optical Investment Holdings Limited | Financial services | 2009 |
| Boots Opticians Professional Services Limited | Wholesale & retail | 2008 |
| Boots Supplementary Plan Trustee Limited | Financial services | 2025 |
| Bopo Concept Ltd | Professional & scientific | 2024 |
| Borazida Geoservices Ltd | Construction | 2025 |
| Bordeaux Dordogne Limited | Construction | 2018 |
| Bordeaux Energy Limited | Real estate | 2023 |
| Bordeaux Estates (Washington) Limited | Construction | 2024 |
| Bordeaux Estates Limited | Construction | 2024 |
| Bordeaux Estates Management Limited | Professional & scientific | 2018 |
| Bordeaux Garonne Limited | Construction | 2019 |
| Border Control Garden Design Ltd | Administrative & support | 2018 |
| Border Fastenings Ltd | Extraterritorial | 2015 |
| Border Partnership Limited | Wholesale & retail | 2015 |
| Border Project Management Limited | Construction | 2012 |
| Border Reprographics Ltd | Extraterritorial | 2015 |
| Border Signs Ltd | Extraterritorial | 2015 |
| Borderfields Limited | Extraterritorial | 2009 |
| Borderless Love Ltd | Information & communication | 2026 |
| Bordersley Power Ltd | Construction | 2019 |