| BPS Maintenance Services Ltd | Construction | 2020 |
| BPS Properties Ltd. | Real estate | 1967 |
| BPT Bowling Ltd | Arts & recreation | 2018 |
| Bpuk Holdings Limited | Financial services | 2023 |
| BPV Shine Ltd | Wholesale & retail | 2026 |
| BPV Visram Property Limited | Real estate | 2024 |
| BPW Limited | Manufacturing | 1984 |
| BR (Leicester) Ltd | Other services | 2012 |
| BR Board of Coaching Limited | Education | 2025 |
| BR Legal Services Ltd | Professional & scientific | 2013 |
| Braatar Holdings Ltd | Real estate | 2024 |
| Brabo Hockey UK Limited | Wholesale & retail | 2007 |
| Brabus Cladding Ltd | Construction | 2025 |
| Bracebridge Heath Residential Management Company Limited | Real estate | 2025 |
| Bracondale Holdings Limited | Other services | 2013 |
| Bracondale Property Company Limited | Real estate | 2013 |
| Brad.Ro Ltd | Transport & logistics | 2025 |
| Bradbury Display Solutions Limited | Manufacturing | 2023 |
| Bradbury Flooring Limited | Construction | 2003 |
| Bradcaster Insurance Brokers Ltd | Financial services | 2015 |
| Braddock Logistics Ltd | Transport & logistics | 2014 |
| Bradford International Alliance Limited | Education | 2024 |
| Bradgate Asset Management Limited | Real estate | 2017 |
| Bradgate Auto Centre Ltd | Wholesale & retail | 2023 |
| Bradgate Brides Limited | Wholesale & retail | 2006 |
| Bradgate Brook Flooring Limited | Construction | 2009 |
| Bradgate Carpentry and Joinery Limited | Construction | 2007 |
| Bradgate Construction Ltd | Construction | 2023 |
| Bradgate Consultancy Limited | Administrative & support | 2018 |
| Bradgate Consulting Limited | Professional & scientific | 2020 |
| Bradgate Controls Ltd | Construction | 2020 |
| Bradgate Education Partnership | Education | 2012 |
| Bradgate Estates Limited | Real estate | 2002 |
| Bradgate Films Ltd | Information & communication | 2005 |
| Bradgate Financial Solutions Ltd | Financial services | 2014 |
| Bradgate Foods Limited | | 1984 |
| Bradgate Heath Ltd | Information & communication | 2023 |
| Bradgate Holdings Ltd | Real estate | 2023 |
| Bradgate Management Services Limited | Other services | 2025 |
| Bradgate Office Suites Limited | Construction | 2019 |
| Bradgate Pearson Limited | Administrative & support | 2025 |
| Bradgate Properties Ltd | Real estate | 2018 |
| Bradgate Property Investments Ltd | Administrative & support | 2018 |
| Bradgate Property Services Limited | Construction | 2017 |
| Bradgate Residential Sales Ltd | Real estate | 2026 |
| Bradgate Windows & Doors Limited | Construction | 2023 |
| Bradley Decorations Limited | Construction | 2002 |
| Bradley Drakenberg Excel Ltd | Wholesale & retail | 2026 |
| Bradmore Transport Ltd | Transport & logistics | 2014 |
| Bradwell Hazel Ltd | Wholesale & retail | 2025 |
| Brady Project Management Limited | Construction | 2022 |
| Braepac GB Limited | Extraterritorial | 2021 |
| Brahma 5 Limited | Wholesale & retail | 2021 |
| Braidlam Property Limited | Construction | 2021 |
| Brailsford Kitchens Ltd | Construction | 2025 |
| Brailsford Transport Ltd | Transport & logistics | 2014 |
| Brain Art Ltd | Education | 2019 |
| Brain Freeze Designs Ltd | Extraterritorial | 2015 |
| Brainch Limited | Health & social care | 2021 |
| Braingevity Limited | Health & social care | 2025 |
| Brainpark Consultancy Ltd | Information & communication | 2019 |
| Brainstorm U.K. Limited | Manufacturing | 2021 |
| Brake Caliper Solutions Ltd | Manufacturing | 2020 |
| Brake Calipers Direct Limited | Professional & scientific | 1997 |
| Brakes While U Wait Ltd | Wholesale & retail | 2011 |
| Bramble Healthcare Ltd | Health & social care | 2021 |
| Bramble SHE Services Limited | Administrative & support | 2018 |
| Bramley Courier Service Ltd | Transport & logistics | 2025 |
| Bramley Hawthorn Logistics Ltd | Wholesale & retail | 2025 |
| Bramley Property Solutions Ltd | Professional & scientific | 2025 |
| Branagh PR Limited | Professional & scientific | 2020 |
| Brancaster Investments Limited | Professional & scientific | 2017 |
| Brancaster Transport Ltd | Transport & logistics | 2014 |
| Branch Bazaar Limited | Hospitality | 2018 |
| Brand Advantage Ltd | Professional & scientific | 2015 |
| Brand Box Creations Ltd | Professional & scientific | 2025 |
| Brand Ignite Limited | Professional & scientific | 2012 |
| Brand Logistics Limited | Transport & logistics | 2025 |
| Brand Motive Ltd | Professional & scientific | 2014 |
| Brand Sauce Limited | Wholesale & retail | 2018 |
| Brand Your Business Ltd | Manufacturing | 2025 |
| Brand-Ward Services Limited | Professional & scientific | 2019 |
| Brandaroo Ltd | Professional & scientific | 2022 |
| Brandboard Ltd | Professional & scientific | 2017 |
| Brandbridge Global Ltd | Wholesale & retail | 2023 |
| Branded Lingerie UK Ltd | Manufacturing | 2019 |
| Branded Promo Ltd | Administrative & support | 2022 |
| Branded Web Ltd | Information & communication | 2023 |
| Brandex Ltd | Professional & scientific | 2024 |
| Brando Property Services Ltd | Real estate | 2024 |
| Brandonville Properties Limited | Real estate | 1993 |
| BRANDS4LESS General Trading Ltd | Other services | 2020 |
| Brandwick IT Solutions Limited | Information & communication | 2011 |
| Bransdale Roxby Ltd | Wholesale & retail | 2025 |
| Branston Site Services Ltd | Construction | 2014 |
| Branville Properties Ltd | Real estate | 2025 |
| Brascote & Company Limited | Manufacturing | 2017 |
| Bratch Transport Ltd | Transport & logistics | 2024 |
| Bratislava Store Limited | Wholesale & retail | 2018 |
| Braunstone Chippy Limited | Hospitality | 2023 |