| B S Accessories Ltd | Wholesale & retail | 2014 |
| B S D Investments Ltd | Real estate | 2002 |
| B T G Consultancy Limited | Professional & scientific | 2018 |
| B Unique Beauty Ltd | Other services | 2024 |
| B West Limited | Wholesale & retail | 2024 |
| B Your Best Self Ltd | Professional & scientific | 2025 |
| B&A Corner Shop Ltd | Wholesale & retail | 2026 |
| B&A Properties (Lyell) Ltd | Real estate | 2015 |
| B&B Care Limited | Health & social care | 2013 |
| B&C Associates (Manchester) Limited | Real estate | 2005 |
| B&C Trading Solutions Ltd | Wholesale & retail | 2026 |
| B&Cp Ltd | Professional & scientific | 2019 |
| B&E Property Investments Ltd | Real estate | 2026 |
| B&F Collectives Ltd | Wholesale & retail | 2025 |
| B&F Friends Ltd | Hospitality | 2025 |
| B&G Builders Ltd | Construction | 2021 |
| B&G Fulfillment Ltd | Transport & logistics | 2017 |
| B&G Vehicle Repairs Ltd | Wholesale & retail | 2020 |
| B&H Bright Future Co. Ltd | Real estate | 2017 |
| B&H Products Ltd | Wholesale & retail | 2026 |
| B&H.Pt. Limited | Manufacturing | 1996 |
| B&J Family English and Caribbean Ltd | Hospitality | 2024 |
| B&J Leaflet Distribution Ltd | Information & communication | 2016 |
| B&J Management Services Ltd | Administrative & support | 2019 |
| B&M Business Services Ltd | Hospitality | 2025 |
| B&M Fishing LLP | | 2011 |
| B&M Home Investments Ltd | Real estate | 2025 |
| B&N Bookkeeping Limited | Professional & scientific | 2008 |
| B&N Property Investments Ltd | Real estate | 2025 |
| B&N Stores Ltd | Wholesale & retail | 2017 |
| B&R Care Limited | Health & social care | 2015 |
| B&S Autos Ltd | Transport & logistics | 2019 |
| B&S Consultancy Ltd | Other services | 2012 |
| B&S Family Food Ltd | Hospitality | 2019 |
| B&S Retail Private Ltd | Wholesale & retail | 2022 |
| B&S Travel Limited | Transport & logistics | 2004 |
| B&U Fashion Trendz Limited | Wholesale & retail | 2025 |
| B&V Legacy Ltd | Real estate | 2026 |
| B&V Trading, Pet Accessories Limited | Wholesale & retail | 2020 |
| B&W Global Limited | Real estate | 2022 |
| B&X Ltd | Administrative & support | 2026 |
| B'S Beauty Ltd | Other services | 2023 |
| B-Lafe Holdings Limited | Financial services | 2025 |
| B-Teq LLP | | 2012 |
| B-Uplift-Ed Ltd | Hospitality | 2018 |
| B. Entwistle (Bacon) Limited | Extraterritorial | 2004 |
| B. Horwitz Ltd | Wholesale & retail | 2017 |
| B. Kelly Ltd | Construction | 2005 |
| B. Luft Limited | Manufacturing | 2003 |
| B. M. Dobbins Surgical Services Ltd | Health & social care | 2004 |
| B. Simpson Building Limited | Construction | 2003 |
| B. Sternberg & Sons Limited | Real estate | 1995 |
| B.A. Richardson Construction Limited | Construction | 2018 |
| B.A. Tech Ltd | Information & communication | 2011 |
| B.A.A.R Properties Limited | Real estate | 2026 |
| B.A.B IT & Digital Solutions Ltd | Information & communication | 2025 |
| B.A.G Consultancy Ltd | Professional & scientific | 2019 |
| B.A.M Retro & Classics Cars Ltd | Wholesale & retail | 2025 |
| B.A.S.S. (NW) Limited | Administrative & support | 2005 |
| B.Asr Ltd | Construction | 2019 |
| B.B. Motors Ltd | Wholesale & retail | 2024 |
| B.C.H Civils Limited | Construction | 2008 |
| B.C.N Enterprises Ltd | Other services | 2017 |
| B.D.Silvert Research Limited | Professional & scientific | 1987 |
| B.E Joiners & Sons Limited | Construction | 2022 |
| B.E.B.C. Ltd | Education | 2013 |
| B.E.M Property Management Ltd | Real estate | 2017 |
| B.H. & Co. Consulting Ltd | Administrative & support | 2017 |
| B.I.Distribution Ltd | Wholesale & retail | 2026 |
| B.I.G Tdib Limited | Professional & scientific | 2019 |
| B.J. Stainless Fabrications Limited | Manufacturing | 2002 |
| B.K. Consultancy (NW) Ltd | Administrative & support | 2010 |
| B.K. Financial Services Ltd | Other services | 1997 |
| B.K.L. Investments Limited | Financial services | 1968 |
| B.L. Controls Limited | Manufacturing | 1998 |
| B.M.C. Climbing Walls Limited | Extraterritorial | 1988 |
| B.M.S. Medical Limited | Health & social care | 2012 |
| B.P.I. Projects Limited | Professional & scientific | 1995 |
| B.Payne & SON Limited | Extraterritorial | 1962 |
| B.Ryan Air Tech Ltd | Manufacturing | 2016 |
| B.S.N.T. Ltd. | Manufacturing | 2020 |
| B.S.Property Renovations Ltd | Construction | 2021 |
| B.T. & Tours Limited | Administrative & support | 2018 |
| B.T.E. Limited | Real estate | 1929 |
| B.W Quantum Ltd | Financial services | 2025 |
| B.Y Bunz Ltd | Hospitality | 2025 |
| B1 Design Ltd | Manufacturing | 2022 |
| B1 Security Ltd | Administrative & support | 2025 |
| B1SN Ltd | Wholesale & retail | 2025 |
| B2 Consulting Limited | Professional & scientific | 2010 |
| B26 Holdings Limited | Information & communication | 2017 |
| B2B Collect Ltd | Administrative & support | 2020 |
| B2B Consultancy and Marketing Limited | Information & communication | 2012 |
| B2B Deals Ltd | Wholesale & retail | 2025 |
| B2B Progress (UK) Ltd | Wholesale & retail | 2014 |
| B2B Trading Solutions Limited | Wholesale & retail | 2011 |
| B2C Retail Ltd | Wholesale & retail | 2017 |
| B2PM Ltd | Other services | 2017 |
| B2SEE Ltd | Wholesale & retail | 2013 |
| B3 Communications Ltd | Information & communication | 2022 |