| Brotherguard Limited | Administrative & support | 2025 |
| Brothers Investments (Leic) Ltd | Financial services | 2017 |
| Brothers Transport Limited | Transport & logistics | 2026 |
| Brothers UK Investments Ltd | Real estate | 2022 |
| Brotherz Limited | Wholesale & retail | 2019 |
| Broughton Astley Cleaners Ltd | Administrative & support | 2024 |
| Broughton Astley Empire Barber Ltd | Other services | 2025 |
| Broughton House Properties Ltd | Real estate | 2021 |
| Broughton House Upholstery Limited | Manufacturing | 2003 |
| Broughton Vapes Ltd | Wholesale & retail | 2017 |
| Broughtons Group Limited | Financial services | 2018 |
| Broughwand Limited | Real estate | 1979 |
| Brouq Developments Limited | Construction | 2024 |
| Brown and Shaw Limited | Financial services | 2018 |
| Brown Construction Group Limited | Construction | 2019 |
| Brown Girl in a Bottle CIC | Education | 2025 |
| Brown Squared Property Ltd | Real estate | 2025 |
| Brown's Care Consultancy Ltd | Public administration | 2025 |
| Brown's of Enderby Limited | Administrative & support | 1970 |
| Brownedge Consulting Ltd | Administrative & support | 2026 |
| Brownes Retail Ltd | Other services | 2017 |
| Brownfox Quality Care Limited | Health & social care | 2012 |
| Brownhill Estates Limited | Real estate | 1992 |
| Browns Automotive (Leicester) Ltd | Wholesale & retail | 2021 |
| Browside Ltd | Construction | 2016 |
| Browston Services Ltd | Administrative & support | 2014 |
| Broxtowe Fishbar Limited | Other services | 2019 |
| Brpr Ltd | Wholesale & retail | 2026 |
| Brrr Limited | Real estate | 2015 |
| BRS Accounting Services Limited | Professional & scientific | 2020 |
| BRS Contracting Ltd | Construction | 2017 |
| BRS Property Investments Ltd | Real estate | 2025 |
| BRS Trans Ltd | Transport & logistics | 2013 |
| Brsh Ltd | Real estate | 2020 |
| Brtc Holdings Ltd | Financial services | 2023 |
| Brtk Ltd | Transport & logistics | 2026 |
| BRU Holdings Ltd | Professional & scientific | 2019 |
| BRU Leicester Ltd | Wholesale & retail | 2017 |
| Brucciani (Midlands) Limited | Manufacturing | 1965 |
| Bruce Electrical Engineering Ltd | Construction | 2022 |
| Bruce Street Leics Ltd | Wholesale & retail | 2023 |
| Brucester's Coffee Limited | Hospitality | 2025 |
| Brudax Limited | Professional & scientific | 2025 |
| Bruinx Ltd | Administrative & support | 2025 |
| Bruj Ltd | Financial services | 2018 |
| Brunel Property Holdings Ltd | Administrative & support | 2014 |
| Brunel Security Limited | Administrative & support | 2012 |
| Brunel Trustees Limited | Professional & scientific | 1988 |
| Bruno & Martin Construction Ltd | Real estate | 2022 |
| Brunswick Mills Limited | Wholesale & retail | 2013 |
| Brunswick Pharma Limited | Health & social care | 2019 |
| Bruntingthorpe Motor Engineers Limited | Wholesale & retail | 2014 |
| Brush Paint Ltd | Construction | 2026 |
| Brusk Motors Ltd | Wholesale & retail | 2022 |
| Bruvent Ltd | Administrative & support | 2025 |
| Bruxelles Ltd | Hospitality | 2016 |
| Brva Holdings Limited | Construction | 2023 |
| Brydestone Ltd | Professional & scientific | 2026 |
| Bryland Fire Holdings Limited | Financial services | 2024 |
| Bryland Fire Protection Limited | Wholesale & retail | 1973 |
| Brynemore Cleaning Ltd | Other services | 2019 |
| Brysons Haulage Ltd | Transport & logistics | 1997 |
| Bryter Moon Ltd | Hospitality | 2017 |
| Brûlée Eats Ltd | Wholesale & retail | 2024 |
| BS Construction Services Ltd | Construction | 2019 |
| BS Day One Support Services CIC | Health & social care | 2019 |
| BS Dyal Ltd | Wholesale & retail | 2025 |
| BS Facilities Ltd | Transport & logistics | 2024 |
| BS Handling Property Services Limited | Real estate | 2017 |
| BS Handling Storage Systems Limited | Administrative & support | 2017 |
| BS Heating Solution Limited | Construction | 2019 |
| BS Provent Ltd | Real estate | 2022 |
| BS4444 Limited | Financial services | 2024 |
| BSD (Leic) Ltd | Transport & logistics | 2019 |
| BSE Housewares Ltd | Wholesale & retail | 2024 |
| BSE Property Investment Ltd | Real estate | 2017 |
| BSG Medical Services Ltd | Health & social care | 2016 |
| BSG Retail Limited | Wholesale & retail | 2021 |
| BSG Trading Ltd | Wholesale & retail | 2010 |
| Bshah Ltd | Health & social care | 2026 |
| BSJ Healthcare Limited | Health & social care | 2013 |
| BSJ Smiles Ltd | Health & social care | 2026 |
| BSK (Keshwala) Holdings Limited | Financial services | 2026 |
| Bskye Ltd | Professional & scientific | 2024 |
| Bslik Group Ltd | Construction | 2024 |
| Bslik Professional Ltd | Wholesale & retail | 2025 |
| Bslnet Ltd | Education | 2013 |
| BSM Brothers Ltd | Transport & logistics | 2024 |
| Bsmck Technologies Ltd | Information & communication | 2018 |
| BSP Estates Ltd | Real estate | 2018 |
| BSP Pharma Ltd | Wholesale & retail | 2021 |
| BSP Pubs Limited | Hospitality | 2015 |
| BSR Enterprise Group Ltd | Hospitality | 2020 |
| BST Alarms Ltd | Administrative & support | 2026 |
| BSV Management Services Limited | Financial services | 2023 |
| BSV Property Holdings Limited | Real estate | 2023 |
| BSV Traders Ltd | Wholesale & retail | 2022 |
| BT Auto Logistics Limited | Transport & logistics | 2017 |
| BT Store Ltd | Wholesale & retail | 2026 |
| BTC Hodlings Limited | Financial services | 2021 |