| Bolton Wanderers Community Trust | Arts & recreation | 2001 |
| Bolton Wanderers Development Association (Chorley) Limited | Arts & recreation | 1979 |
| Bolton Wanderers Remembrance Group C.I.C. | Other services | 2023 |
| Bolton Welding Inspection Services Limited | Professional & scientific | 2025 |
| Bolton Window Cleaners Limited | Administrative & support | 2017 |
| Bolton Windows Ltd | Construction | 2025 |
| Bolton-Le-Moors Car Club Limited | Arts & recreation | 1958 |
| Bolton-Pb Ltd | Hospitality | 2025 |
| Boltoncontemporary CIC | Arts & recreation | 2019 |
| Boltondriveways Ltd | Construction | 2020 |
| Boltong Lettings Limited | Real estate | 2012 |
| Boltongolfstarzcoaching Limited | Arts & recreation | 2023 |
| Boltons Bottle GAS Ltd | Wholesale & retail | 2007 |
| Boltons Rescue & Repair Ltd | Wholesale & retail | 2024 |
| Bomaju Enterprise Limited | Real estate | 2022 |
| Bomaju Ltd | Health & social care | 2019 |
| Bombay Streetfood Catering Ltd | Hospitality | 2021 |
| Bona TK Ltd | Professional & scientific | 2019 |
| Bond Brotherz Ltd | Hospitality | 2025 |
| Bond Celebrations Ltd | Arts & recreation | 2025 |
| Bond GAS Company Limited | Construction | 2014 |
| Bond Logistics and Haulage Ltd | Transport & logistics | 2025 |
| Bonica Ltd | Other services | 2021 |
| Bonne Healthcare and Support Services Ltd | Administrative & support | 2022 |
| Bonneville Sales Limited | Extraterritorial | 2023 |
| Bonnie Homes Ltd | Real estate | 2019 |
| Bonny Bakers Ltd | Hospitality | 2025 |
| Bonty Transport Ltd | Transport & logistics | 2025 |
| Bonworth Limited | Financial services | 2023 |
| BOO Coaching and Consulting Limited | Professional & scientific | 2015 |
| Book ANY Van Ltd | Information & communication | 2023 |
| Booking Beyond Limited | Information & communication | 2018 |
| Books 4 U MCR Ltd | Wholesale & retail | 2025 |
| Bookthatminibus.Com Ltd | Transport & logistics | 2026 |
| Boom Mobile World Limited | Wholesale & retail | 2020 |
| Boomibloom Ltd | Hospitality | 2022 |
| Boomz Events Limited | Hospitality | 2023 |
| Boot OUT Breast Cancer | Administrative & support | 2010 |
| Booth Associates Limited | Professional & scientific | 2009 |
| Booth Care Ltd | Health & social care | 2026 |
| Booth Community Care Limited | Health & social care | 2024 |
| Booth Consultancy Ltd | Wholesale & retail | 2013 |
| Booth Heating Solutions Limited | Manufacturing | 2006 |
| Booth Road Stores Ltd | Wholesale & retail | 2023 |
| Booth Seating Ltd | Manufacturing | 2024 |
| Bootle Self Serve Limited | Wholesale & retail | 2008 |
| Booze Brothers Bolton Ltd | Wholesale & retail | 2018 |
| Booze Point Limited | Wholesale & retail | 2023 |
| Borek Holdings Limited | Real estate | 2025 |
| Bornite Consulting Limited | Professional & scientific | 2019 |
| Bornite Holdings Limited | Real estate | 2017 |
| Bornite Legal Limited | Professional & scientific | 2015 |
| BOS IT Limited | Information & communication | 2023 |
| Boshhh Ltd | Wholesale & retail | 2021 |
| Bospon Makeway Housing Ltd | Real estate | 2026 |
| Boss Brows Limited | Administrative & support | 2017 |
| Boss Edition Ltd | Extraterritorial | 2023 |
| Boss Group Holdings GB Ltd | Financial services | 2021 |
| Boss Group Ltd | Transport & logistics | 2022 |
| Boss Laundry Ltd | Other services | 2022 |
| Boss Shot International Limited | Wholesale & retail | 2017 |
| Bossmans Burgers Ltd | Hospitality | 2025 |
| Bossthings on Ebay Limited | Real estate | 2018 |
| Boston Executive Search Limited | Other services | 2023 |
| Boston Holdco a Limited | Financial services | 2013 |
| Boston Mitchell Limited | Real estate | 2015 |
| Botanic Bubbles Ltd | Wholesale & retail | 2025 |
| Botanica Films Ltd | Information & communication | 2023 |
| Botley Properties Limited | Real estate | 2010 |
| Boujee MK Ltd | Other services | 2020 |
| Bouldr Limited | Extraterritorial | 2011 |
| Boultby Limited | Information & communication | 2023 |
| Boulton Meica Services Limited | Construction | 2019 |
| Boumalol Express Ltd | Wholesale & retail | 2022 |
| Boumalol Express Super Store Limited | Wholesale & retail | 2025 |
| Bounce 'N' Boogie Limited | Administrative & support | 2023 |
| Bounce Planet Ltd | Administrative & support | 2026 |
| Boundary Bites Limited | Hospitality | 2025 |
| Boundary Gate and Barrier (Contracts) Limited | Construction | 2011 |
| Boundary Gate and Barrier Installations Ltd | Construction | 2018 |
| Bourbach Ltd | Manufacturing | 2024 |
| Bourne & Co Software Solutions Limited | Information & communication | 2018 |
| Bourne Surgical Limited | Health & social care | 2017 |
| Bourneley Limited | Administrative & support | 2010 |
| Boutique 370 Cards & Gifts Ltd | Wholesale & retail | 2023 |
| Boux Plants Ltd | Administrative & support | 2021 |
| Bowater Developments Ltd | Real estate | 2006 |
| Bowers Court Limited | Real estate | 2007 |
| Bowker Enterprises Limited | Financial services | 2012 |
| Bowker Steer Ltd | Professional & scientific | 2017 |
| Bowland View Gisburn Management Company Limited | Households | 2019 |
| Bowlers Yard SPV Limited | Construction | 2025 |
| Bowling Court Management Company One Limited | Households | 2001 |
| Bowling Green Horwich Ltd | Other services | 2016 |
| Bowling-Ryan Limited | Wholesale & retail | 1999 |
| Bowness Consultancy Ltd | Professional & scientific | 2024 |
| Box Power CIC | Administrative & support | 2014 |
| Box Right Limited | Professional & scientific | 2020 |
| Boxd Logistics Ltd | Transport & logistics | 2019 |
| Boxfish Software Limited | Information & communication | 2022 |