| B T Patel Ltd | Health & social care | 2024 |
| B Williams Hair & Co Ltd | Other services | 2014 |
| B Y Investments Ltd | Real estate | 2021 |
| B&A Asset Management Limited | Real estate | 2025 |
| B&A Training and Consulting Ltd | Information & communication | 2013 |
| B&B Event Services Ltd | Administrative & support | 2024 |
| B&Co. Ltd | Administrative & support | 2016 |
| B&E Painting Services Limited | Construction | 2025 |
| B&H Corporation Ltd | Professional & scientific | 2025 |
| B&I Truck and Trailer Services Ltd | Wholesale & retail | 2025 |
| B&K Catering Limited | Hospitality | 2020 |
| B&K Cleaning Solutions Ltd | Construction | 2021 |
| B&M Print and Embroidery Limited | Manufacturing | 2022 |
| B&P Assets Ltd | Real estate | 2022 |
| B&R Property Solutions Ltd | Real estate | 2025 |
| B&R Seedat Ltd | Real estate | 2024 |
| B&S Incorporation Limited | Wholesale & retail | 2017 |
| B&T Homes Ltd | Real estate | 2026 |
| B-Bikers Ltd | Education | 2019 |
| B-Clean Ltd | Administrative & support | 2023 |
| B-Hope and Care Services Ltd | Health & social care | 2016 |
| B-Inspired (Trading) Limited | Administrative & support | 2010 |
| B-J's Print & Design Limited | Information & communication | 1993 |
| B-Nile Limited | Other services | 2024 |
| B-Spoke Systems Ltd | Wholesale & retail | 2003 |
| B-Sure Installations Ltd | Construction | 2009 |
| B-Sure Recycling Ltd | Other services | 2023 |
| B. Durkin Developments Ltd | Construction | 2004 |
| B. I. Limited | Manufacturing | 1982 |
| B. Misk Fitness Limited | Arts & recreation | 2013 |
| B. Misk Limited | Real estate | 2010 |
| B. P. Singh Limited | Health & social care | 2008 |
| B. V. Commercials Ltd | Wholesale & retail | 2016 |
| B.A.R (Leicester) Mechanical Services Limited | Construction | 2013 |
| B.Arif Limited | Financial services | 2015 |
| B.Bassi Ltd | Health & social care | 2015 |
| B.C. Installations Limited | Construction | 1999 |
| B.C.D. Team Limited | Professional & scientific | 2005 |
| B.H Cars Ltd | Wholesale & retail | 2024 |
| B.H.M. International Limited | Wholesale & retail | 2009 |
| B.H.M. Knitwear Limited | Manufacturing | 1972 |
| B.I.G Wilz Entertainment Ltd | Information & communication | 2025 |
| B.J.S. Building Supplies Limited | Wholesale & retail | 2015 |
| B.J.S. Concrete Limited | Wholesale & retail | 2018 |
| B.J.S. Properties (Leicester) Ltd | Real estate | 2019 |
| B.K. Deliveries UK Ltd | Transport & logistics | 2026 |
| B.K.D Transport Limited | Transport & logistics | 2020 |
| B.M.Fashions (U.K.) Limited | Manufacturing | 1999 |
| B.M.Pharma Ltd | Wholesale & retail | 2012 |
| B.S. Attwall & Co. Limited | Manufacturing | 1964 |
| B.S.Components Limited | Manufacturing | 1983 |
| B.Scott Chimney Services Ltd | Administrative & support | 2025 |
| B.T.A Installations Ltd | Construction | 2018 |
| B.T.D.A. Ltd | Education | 1973 |
| B.T.E. Plant Sales (Northern) Limited | Wholesale & retail | 2009 |
| B.T.E. Plant Sales Limited | Wholesale & retail | 1994 |
| B.T.S. Group (Holdings) Limited | Real estate | 1986 |
| B.Y.T. Electrical Services Limited | Manufacturing | 2003 |
| B1 Barbershop Ltd | Other services | 2025 |
| B2 Investment Limited | Households | 2021 |
| B2B (Leicester) Ltd | Manufacturing | 2024 |
| B2B (TNR) Limited | Administrative & support | 2021 |
| B2B Global Impex Ltd | Wholesale & retail | 2025 |
| B2B UK Events Ltd | Administrative & support | 2022 |
| B2E Investment Limited | Real estate | 2023 |
| B2WISE Holdings Ltd | Financial services | 2024 |
| B2WISE UK Ltd | Professional & scientific | 2016 |
| B2Z Limited | Wholesale & retail | 2018 |
| B3 Developments UK Limited | Construction | 2021 |
| B33S Ltd | Wholesale & retail | 2019 |
| B3T Ltd | Other services | 2023 |
| B@D Trans Ltd | Construction | 2016 |
| BA & Co Accountants Ltd | Professional & scientific | 2025 |
| BA Events Ltd | Administrative & support | 2026 |
| BA Transport Services Ltd | Transport & logistics | 2025 |
| BA Travels (Leic) Ltd | Transport & logistics | 2023 |
| Baaba Shair Ltd | Hospitality | 2017 |
| Baajh Homes PVT Ltd. | Real estate | 2025 |
| Baalvi Properties Ltd | Real estate | 2021 |
| Baap Limited | Manufacturing | 2005 |
| Baariz Care Services Ltd | Health & social care | 2025 |
| Baasaa Ltd | Wholesale & retail | 2023 |
| Baaz Roofing Services Ltd | Construction | 2026 |
| Baazz Transport Limited | Transport & logistics | 2023 |
| Baba Kitchen and Caters Ltd | Hospitality | 2026 |
| Baba Zulmai Limited | Wholesale & retail | 2023 |
| Babak Joinery Ltd | Construction | 2025 |
| Babar Medical Services Limited | Health & social care | 2023 |
| Babdm Limited | Education | 2008 |
| Babe Clothing Ltd | Manufacturing | 2013 |
| Babg Logistics Company Ltd | Transport & logistics | 2020 |
| Babley Shisha Leicester Limited | Administrative & support | 2025 |
| Babra Financials Ltd | Financial services | 2019 |
| Baby BOO Couture Limited | Wholesale & retail | 2019 |
| Baby Box Online Limited | Wholesale & retail | 2024 |
| Baby Moose Ltd | Wholesale & retail | 2023 |
| Baby Originals Limited | Wholesale & retail | 2015 |
| Baby Planet (Online) Limited | Wholesale & retail | 2017 |
| Baby Scans 4D Ltd | Health & social care | 2024 |
| Babydreamsafe Ltd | Wholesale & retail | 2024 |