| Bolton Sunblind Centre Limited | Wholesale & retail | 2006 |
| Bolton Wall & Flooring Limited | Construction | 1995 |
| Boltons Funerals Ltd | Other services | 2026 |
| Bond Personnel Ltd | Administrative & support | 2003 |
| Bonkers Prices Ltd | Wholesale & retail | 2021 |
| Boomerang Training Ltd | Professional & scientific | 2017 |
| Boomerram Ltd | Administrative & support | 2024 |
| Boomlife Wellness Ltd | Health & social care | 2024 |
| Booths Brow Management Company Limited | Real estate | 2018 |
| Border Rose Developments Limited | Construction | 2023 |
| Bore Equipment Limited | Manufacturing | 2013 |
| Bores Meadow Management Company Limited | Households | 2016 |
| Bork Corp. Ltd | Wholesale & retail | 2022 |
| Borron Shaw Management Limited | Real estate | 2008 |
| Boruler Limited | Hospitality | 2025 |
| Boss Beverage Gases Limited | Wholesale & retail | 2005 |
| Bostmechan Inspection Ltd | Professional & scientific | 2017 |
| Boswell & Berry Limited | Administrative & support | 2018 |
| Bote Ltd | Manufacturing | 2024 |
| Boudillon Resources Limited | Wholesale & retail | 2020 |
| Bounce Alot Northwest Ltd | Arts & recreation | 2024 |
| Bound Studios Ltd | Wholesale & retail | 2023 |
| Bowen Business Ltd | Real estate | 2025 |
| Bowker Lettings Ltd | Real estate | 2014 |
| Bowker Property Investments Limited | Real estate | 2025 |
| Bowland CAD Ltd | Professional & scientific | 2025 |
| Box Kitchen Ltd | Hospitality | 2020 |
| Boxed UP Packaging Ltd | Manufacturing | 2021 |
| Boxflow Container Sales & Hire Ltd | Wholesale & retail | 2026 |
| Boxing for Better C.I.C. | Education | 2021 |
| Boxx Global Limited | Administrative & support | 2025 |
| Boxx Limited | Administrative & support | 2026 |
| Boyd Property Management Ltd | Real estate | 2026 |
| Boydells Farm Management Limited | Real estate | 2022 |
| Boys Line Ltd | Other services | 2026 |
| BP Legacy Ltd | Real estate | 2021 |
| BPE Enterprises Ltd | Financial services | 2021 |
| BPE Holdings Limited | Financial services | 2019 |
| BPE Retail Limited | Professional & scientific | 2004 |
| BPG Investments Ltd | Wholesale & retail | 2017 |
| Bq-Faces Ltd | Professional & scientific | 2023 |
| Bradley Consultants Limited | Wholesale & retail | 2023 |
| Bradley Land Management Limited | Real estate | 2011 |
| Bradleys Construction Ltd | Manufacturing | 2010 |
| Bradleys Fabrication Ltd | Construction | 2020 |
| Bradleys Machinery Ltd | Wholesale & retail | 2019 |
| Bradpharm Ltd | Wholesale & retail | 2008 |
| Bradwest (Wigan) Ltd | Wholesale & retail | 2025 |
| Braemar Properties Limited | Real estate | 1988 |
| Braemere Models Ltd | Manufacturing | 2022 |
| Brago Engineering Services Limited | Manufacturing | 2016 |
| Brain Blips Ltd | Arts & recreation | 2018 |
| Braising Glory Limited | Hospitality | 2025 |
| Branches of Beauty Limited | Other services | 2015 |
| Brand Battle Ltd | Professional & scientific | 2024 |
| Brand Generate Ltd | Professional & scientific | 2023 |
| Brand Stock Box Ltd | Professional & scientific | 2018 |
| Brandlesholme One Ltd | Hospitality | 2025 |
| Brash Monumental Masons Ltd | Manufacturing | 2021 |
| Brat-Bros Catering Ltd | Hospitality | 2020 |
| Bravo Property Developments NW Limited | Construction | 2026 |
| Bravo Roofing & Building Projects Limited | Construction | 2025 |
| Bravo Theatre Company Limited | Arts & recreation | 2014 |
| Breakey & Co Limited | Real estate | 2026 |
| Breastfeeding Together | Health & social care | 2014 |
| Breath Alchemy Ltd | Health & social care | 2020 |
| Breath for Healing Limited | Health & social care | 2024 |
| Breave Ltd | Professional & scientific | 2023 |
| Breck Casings Ltd | Manufacturing | 2016 |
| Breeze Heating Ltd | Construction | 2018 |
| Breheny Bros UK Ltd | Manufacturing | 2026 |
| Breheny Groundwork Contractors Limited | Construction | 2004 |
| Breheny Plant Hire Ltd | Administrative & support | 2024 |
| Breheny Technology Services Ltd | Manufacturing | 2026 |
| Breloris | Professional & scientific | 2026 |
| Brent GAS UK Limited | Construction | 2026 |
| Brent Renewable Energy Solutions Ltd | Other services | 2016 |
| Brew & Bake Limited | Hospitality | 2021 |
| Brian Rolls Ltd | Construction | 2012 |
| Brick Store Limited | Wholesale & retail | 1990 |
| Brick Tiles Nationwide Limited | Construction | 2012 |
| Brickora Property Ltd | Real estate | 2026 |
| Bridge & Sons Ltd | Professional & scientific | 2026 |
| Bridge Relocations Ltd | Transport & logistics | 2024 |
| Bridgeborne Limited | Health & social care | 2010 |
| Bridgebrite Ltd | Health & social care | 2023 |
| Bridgeman Accountants Ltd | Professional & scientific | 2010 |
| Bridgeman Business Hub Ltd | Real estate | 2025 |
| Bridgerose Projects Limited | Construction | 2022 |
| Bridgerose Property Developments Ltd | Real estate | 2025 |
| Bridgewater Care Group Ltd | Financial services | 2014 |
| Bridgewater Home Care (Franchise) Ltd | Administrative & support | 2019 |
| Bridgewater Home Care Ltd | Health & social care | 2010 |
| Bright Moon Crystals Limited | Wholesale & retail | 2022 |
| Bright Sparkz Ltd | Construction | 2024 |
| Brightbean Ltd | Professional & scientific | 2018 |
| Brighter Cleaning Solutions Ltd | Administrative & support | 2024 |
| Brighter Dayz Ltd | Health & social care | 2020 |
| Brighter Futures Youth Project CIC | Arts & recreation | 2025 |
| Brighter Roots CIC | Public administration | 2026 |