| Benoit Technologies UK Ltd | Wholesale & retail | 2019 |
| Benok Business Support Services Ltd | Administrative & support | 2023 |
| Benoli Services Limited | Water & waste | 2024 |
| Bensons Car & Commercials Limited | Wholesale & retail | 2007 |
| Bentham Butchers Limited | Wholesale & retail | 2026 |
| Bentley Corporate Consultants LLP | | 2007 |
| Bentley Corporate Manufacturing LLP | | 2008 |
| Bentley Electrical Limited | Construction | 2002 |
| Bentleys Security Ltd | Administrative & support | 2025 |
| Benvue Developments Limited | Real estate | 2012 |
| Benvue Group Limited | Financial services | 2025 |
| Beppe's Bradshaw Ltd | Hospitality | 2020 |
| Beppe's Pizzeria Ltd | Hospitality | 2019 |
| Berari Ltd | Manufacturing | 2022 |
| Berbar Limited | Financial services | 2022 |
| Berg Pro Ltd | Wholesale & retail | 2023 |
| Berisha (SAN Marino) Ltd | Hospitality | 2020 |
| Berkley Group Trading Limited | Wholesale & retail | 2025 |
| Berloce Beauty Ltd | Wholesale & retail | 2025 |
| Bernard Pele Limited | Information & communication | 2015 |
| Berntech Limited | Information & communication | 2022 |
| Berol Energy Ltd | Construction | 2024 |
| Berrydale Holdings Limited | Other services | 2019 |
| Bertie & Hope Ltd | Wholesale & retail | 2024 |
| Berts Homebake Ltd | Hospitality | 2019 |
| BES Electrical Fire & Security Ltd | Manufacturing | 2012 |
| BES Fire and Security Ltd | Manufacturing | 2016 |
| Besisco Ltd | Real estate | 2018 |
| Besong Residential Limited | Transport & logistics | 2022 |
| Bespoke Clothing Limited | Wholesale & retail | 2016 |
| Bespoke Community Care Limited | Health & social care | 2024 |
| Bespoke Composite Doors Ltd | Construction | 2007 |
| Bespoke Control and Safety Engineering Solutions Limited | Other services | 2022 |
| Bespoke Credit Hire Ltd | Administrative & support | 2004 |
| Bespoke Decorative Glass Limited | Manufacturing | 2009 |
| Bespoke Design & Drawing Limited | Information & communication | 2019 |
| Bespoke Design Glazing Limited | Construction | 2017 |
| Bespoke Events Group Ltd | Hospitality | 2018 |
| Bespoke Frameworks by Chris Hesketh Ltd | Health & social care | 2018 |
| Bespoke Home & Build Ltd | Construction | 2022 |
| Bespoke Insolvency Solutions Limited | Professional & scientific | 2019 |
| Bespoke Joinery Installations Limited | Manufacturing | 2024 |
| Bespoke Living (Construction & Development) Ltd | Construction | 2022 |
| Bespoke Property Ltd | Households | 2022 |
| Bespoke Spirits Ltd | Professional & scientific | 2022 |
| Bespoke Travel Consultancy Ltd. | Administrative & support | 2017 |
| Bespoke Wills and Estate Planning Limited | Professional & scientific | 2020 |
| Besseges (Valves, Tubes and Fittings) Limited | Wholesale & retail | 1988 |
| Besseges Valves Tubes & Fittings (Group) Limited | Manufacturing | 2018 |
| Besseges Valves, Tubes & Fittings (Holdings) Limited | Professional & scientific | 2000 |
| Best Beauty Sales Limited | Wholesale & retail | 2015 |
| Best BID Group Ltd | Information & communication | 2022 |
| Best Bike BID Ltd | Information & communication | 2023 |
| Best Build Renovations Ltd | Construction | 2023 |
| Best Buy Swami Emporium Ltd | Wholesale & retail | 2022 |
| Best Chapter Limited | Administrative & support | 2021 |
| Best Electrical Supplies Limited | Wholesale & retail | 2011 |
| Best Face Beauty Ltd | Wholesale & retail | 2024 |
| Best Loft Ladders Limited | Construction | 2014 |
| Best One Shop Ltd | Wholesale & retail | 2024 |
| Best Print Solutions Ltd | Other services | 2025 |
| Best Service Moree Ltd | Wholesale & retail | 2025 |
| Best Travel Trips Limited | Administrative & support | 2025 |
| Bestelo Ltd | Wholesale & retail | 2020 |
| Besthaul Limited | Transport & logistics | 2023 |
| Bestjoin Residents Management Limited | Real estate | 1987 |
| Bestrent Limited | Real estate | 2022 |
| Bestun Car Recovery Limited | Transport & logistics | 2022 |
| Bestway Mini Buses Ltd | Administrative & support | 2013 |
| Beta Family Investments Ltd | Financial services | 2019 |
| Beta Partners Limited | Professional & scientific | 2002 |
| Beta Tech Services Limited | Information & communication | 2023 |
| Bethesda Shelter and Care Home Ltd | Administrative & support | 2023 |
| Betheseams Limited | Wholesale & retail | 2020 |
| Better Business Design Consulting Limited | Professional & scientific | 2022 |
| Better Buys 4 U Ltd | Wholesale & retail | 2025 |
| Better Drinking Company Ltd | Professional & scientific | 2019 |
| Better Rides Ltd | Arts & recreation | 2014 |
| Betterbuild (North West) Limited | Construction | 2008 |
| Betterbuild Developments Limited | Construction | 2017 |
| Betterbuild Northern Limited | Construction | 2016 |
| Beunard Ltd | Information & communication | 2019 |
| Bevan Electricals Limited | Construction | 2019 |
| Beverly Homes Ltd | Real estate | 2021 |
| Bevilacqua Consulting Group Ltd | Other services | 2016 |
| Bexgreen Hospitality Limited | Hospitality | 2021 |
| Beyond Barriers NW CIC | Health & social care | 2024 |
| Beyond Evergreen Limited | Information & communication | 2019 |
| Beyond Profit Ltd | Professional & scientific | 2017 |
| Beyond Profit Software Solutions Ltd | Information & communication | 2022 |
| Beyond Solutions UK Limited | Wholesale & retail | 2022 |
| Beyond the Nest Ltd | Education | 2024 |
| Beyoutiful Minds Limited | Health & social care | 2022 |
| Beyy Ltd | Wholesale & retail | 2025 |
| Bezalel Enterprise Limited | Wholesale & retail | 2026 |
| BFC Property Limited | Real estate | 2011 |
| BFL Group Limited | Administrative & support | 2023 |
| BFN Estates Ltd | Real estate | 2025 |
| Bfpm Ltd | Professional & scientific | 2013 |
| BFS Capital Ltd | Financial services | 2014 |