| Bakers Property Solutions Ltd | Real estate | 2025 |
| Balance Garden Design Ltd | Administrative & support | 2026 |
| Ballistic Entertainment Limited | Hospitality | 2017 |
| Bamber & Lune Ltd | Wholesale & retail | 2025 |
| Bamoel Consultancy Ltd | Real estate | 2021 |
| Banini UK Ltd | Wholesale & retail | 2014 |
| Banks Flooring Solutions Limited | Construction | 2017 |
| Bar Indigo (Leyland) Ltd | Hospitality | 2022 |
| Baron's (Fylde Coast Supplies) Limited | Manufacturing | 1991 |
| Baron's Contract Furniture Limited | Extraterritorial | 2012 |
| Baron-Oxberry Motorsports Ltd | Manufacturing | 2022 |
| Barton Dene Luxury Animal Boarding Establishment Ltd | Other services | 2024 |
| BAS Residential Limited | Real estate | 2025 |
| Base (NW) Ltd | Real estate | 2025 |
| Bass Heating Spares Ltd | Wholesale & retail | 2017 |
| Baum Labs Ltd | Professional & scientific | 2023 |
| Bawn HQ Ltd | Financial services | 2024 |
| BB Workwear Limited | Manufacturing | 2025 |
| BBL Body Confidence Ltd | Other services | 2024 |
| BCH Groundworks Limited | Construction | 2022 |
| BCK Technology Ltd | Other services | 2024 |
| BD Dental Care Ltd | Health & social care | 2013 |
| BDW Property Consultants LLP | | 2011 |
| Beans & Bites Leyland Ltd | Hospitality | 2024 |
| Beauty & the Hair Boutique Ltd | Other services | 2023 |
| Beauty @ the Honey POT Limited | Extraterritorial | 2018 |
| Beauty at ITS Best (NW) Ltd | Other services | 2024 |
| BEE Automation Ltd | Professional & scientific | 2023 |
| Beechfield Consultants Ltd | Administrative & support | 2019 |
| Beechstone Advisory Ltd | Professional & scientific | 2023 |
| Bella Blue Ltd | Arts & recreation | 2017 |
| Belmont Formations Ltd | Administrative & support | 2024 |
| Benefits & Accounting Ltd | Professional & scientific | 2020 |
| Benson and Sons Limited | Construction | 2013 |
| Bent Lane Management Company Ltd | Real estate | 2013 |
| Bentall Rowlands Silo Storage Limited | Manufacturing | 2019 |
| Benteck Limited | Information & communication | 2013 |
| Bentleys Joinery + Roofing Services Limited | Construction | 2023 |
| Bertie's Maintenance Services Limited | Construction | 2021 |
| Bespoke Media Limited | Information & communication | 2019 |
| Bespoke Places Limited | Real estate | 2021 |
| Bespoke Traffic and Highway Solutions Limited | Manufacturing | 2018 |
| Best Before END Digital Ltd | Information & communication | 2009 |
| Bethanny O'Reilly Ltd | Health & social care | 2019 |
| Bethels Property Services Limited | Construction | 2021 |
| Beyond Neurological Limits Limited | Health & social care | 2020 |
| BG Asset & Property Group Ltd | Construction | 2025 |
| BG School Ivan Vazov Preston Ltd | Education | 2021 |
| Bicc (Blackley) Ltd | Extraterritorial | 2010 |
| Biggar Groundwork and Construction Limited | Construction | 2020 |
| Bikers Gear Australia Limited | Wholesale & retail | 2018 |
| Birchmore Willow Ltd | Professional & scientific | 2019 |
| Bishop Rawstorne Church of England Academy Trust | Education | 2011 |
| Bishop Rawstorne International Language College Trust | Education | 1997 |
| Bitbandit Limited | Administrative & support | 2024 |
| BJT Flooring Ltd | Wholesale & retail | 2021 |
| BK Garden and Design Ltd | Construction | 2026 |
| BK Landscaping Ltd | Construction | 2026 |
| Bkhq Limited | Professional & scientific | 2022 |
| Black Rose Plant Services Limited | Professional & scientific | 2026 |
| Black Schnauzer Productions Limited | Arts & recreation | 2026 |
| Black Swan (NW) Limited | Professional & scientific | 2010 |
| Black Swan Property Management Limited | Real estate | 2021 |
| Blackpool Pubs Ltd | Hospitality | 2021 |
| Blackstock Engineering Ltd | Construction | 2022 |
| Bleasdale Engineering Projects Ltd | Professional & scientific | 2020 |
| Blinx Beauty Studio Ltd | Other services | 2019 |
| Blinxacademy Limited | Other services | 2025 |
| Blomfield RYE Ltd | Wholesale & retail | 2025 |
| Bloom Curriculum Limited | Education | 2025 |
| Blowout Hair Ltd | Other services | 2019 |
| Blue Gryphon Properties Ltd | Real estate | 2020 |
| Blue Light Driving Consultancy Ltd | Education | 2026 |
| Blue ORB Ltd | Professional & scientific | 2026 |
| Bluebell Upholstery Limited | Other services | 2020 |
| Blueprint Design and Frames Ltd | Arts & recreation | 2015 |
| BM Sports Events Limited | Arts & recreation | 2023 |
| BNG Consultancy Limited | Construction | 2015 |
| Boat Spa Ltd | Manufacturing | 2023 |
| Body Reach Ltd | Arts & recreation | 2025 |
| Bodycare (Health & Beauty) Limited | Extraterritorial | 1990 |
| Bodyoo Ltd | Education | 2021 |
| Boggyhall Spaniels Limited | Agriculture & fishing | 2023 |
| Boston Doone Ltd | Wholesale & retail | 2025 |
| Botanica Grounds Maintenance Ltd | Administrative & support | 2023 |
| Botanica Group Ltd | Administrative & support | 2023 |
| Botanica Plant Hire Ltd | Administrative & support | 2023 |
| Bowers Marshall Ltd | Wholesale & retail | 2025 |
| Box Clever Northwest C.I.C. | Arts & recreation | 2020 |
| BP Tax Consultants Ltd | Professional & scientific | 2025 |
| Brabco 2213 Limited | Professional & scientific | 2022 |
| Bradbury Engineering Ltd | Manufacturing | 2018 |
| Brea Property Investments Ltd | Real estate | 2026 |
| Brewsters (NW) Ltd | Hospitality | 2020 |
| Brian Worthington Embalming Service Ltd | Professional & scientific | 2016 |
| Bricks Ventures Ltd | Financial services | 2024 |
| Brides at Charnock Farm Ltd | Wholesale & retail | 2022 |
| Bridge Flooring NW Ltd | Wholesale & retail | 2017 |
| Brierley Solutions Limited | Information & communication | 2026 |
| Brierleypropertyservices Ltd | Construction | 2025 |