| Broskis Bury Ltd | Hospitality | 2023 |
| Brosnoque Ltd | Administrative & support | 2019 |
| Brotex Limited | Extraterritorial | 2020 |
| Browfield Residential Home Limited | Health & social care | 2001 |
| Brownbridge Holdings Limited | Financial services | 2005 |
| Brownbridge Limited | Construction | 1989 |
| Brownnj Holdings Ltd | Professional & scientific | 2024 |
| Browns Foods Limited | Wholesale & retail | 2025 |
| Browny Limited | Administrative & support | 2018 |
| BRR Kitchen Ltd | Hospitality | 2026 |
| BRS Northern Ltd | Construction | 2021 |
| Brumm Brumm Limited | Other services | 2016 |
| Bryer Street (Lancaster) Company Limited | Households | 1995 |
| Brymoor Enterprises Limited | Wholesale & retail | 2016 |
| BS Media Productions Ltd | Information & communication | 2025 |
| BSK Optical Services Ltd | Health & social care | 2022 |
| BST Capital Ltd | Financial services | 2025 |
| BTP Consultants Limited | Professional & scientific | 2011 |
| BU Analytics Ltd | Information & communication | 2026 |
| Bubbles OUT of School Club Ltd | Health & social care | 2025 |
| Buccaneer Capital Limited | Professional & scientific | 2019 |
| Buckhurst Group (Holdings) Ltd | Financial services | 2018 |
| Buckhurst Group Limited | Professional & scientific | 2005 |
| Buckhurst Land Investments Limited | Real estate | 2016 |
| Buckhurst Plant Hire Limited | Administrative & support | 1997 |
| Buckley Grange Court Management Company Limited | Households | 2002 |
| Buete Limited | Information & communication | 2022 |
| Build a Baller Ltd | Arts & recreation | 2023 |
| Build-Excel Ltd | Construction | 2026 |
| Buildaballergym Ltd | Other services | 2026 |
| Building Online Ltd | Information & communication | 2007 |
| Building Project Services Limited | Construction | 2025 |
| Buildly Ltd | Wholesale & retail | 2024 |
| Built by AJ Limited | Professional & scientific | 2021 |
| Built by ME Ltd | Real estate | 2025 |
| Bukcar Ltd | Wholesale & retail | 2023 |
| Bulk Zone Ltd | Wholesale & retail | 2026 |
| Bump and Beyond Health & Wellness Group Ltd | Health & social care | 2021 |
| BUN DAT Ltd | Hospitality | 2023 |
| Burak Tech Ltd | Information & communication | 2026 |
| Burak Traders NW Limited | Wholesale & retail | 2024 |
| Burgaflex Automotive Limited | Manufacturing | 2001 |
| Burgaflex U.K. Ltd. | Manufacturing | 1991 |
| Burger Brothers (1997) Limited | Hospitality | 2023 |
| Burlington Property (UK) Limited | Real estate | 2010 |
| Burning Desire Fireplace Centre (UK) Limited | Wholesale & retail | 2000 |
| Burns Mcleod Business Solutions Limited | Professional & scientific | 2011 |
| Burnt House Farm (Agricultural) Limited | Agriculture & fishing | 2021 |
| Burraq Traders Ltd | Wholesale & retail | 2023 |
| Burrell Consulting Limited | Professional & scientific | 2018 |
| Burrs Vocational Rehabilitation Services Limited | Health & social care | 2021 |
| Burton & Barlow Engineering Limited | Manufacturing | 1977 |
| Bury Accident Repair Ltd | Wholesale & retail | 2023 |
| Bury Auto Stripper Ltd | Wholesale & retail | 2025 |
| Bury Autos Limited | Wholesale & retail | 2018 |
| Bury BAE Ltd | Wholesale & retail | 2025 |
| Bury Bags Ltd | Wholesale & retail | 2024 |
| Bury Bakehouse Limited | Wholesale & retail | 2025 |
| Bury Barber NO 1 Limited | Other services | 2026 |
| Bury Basketball Alliance CIC | Arts & recreation | 2021 |
| Bury Bath and Tile Ltd | Construction | 2020 |
| Bury Beekeeping Ltd | Manufacturing | 2020 |
| Bury BID Company Ltd | Other services | 2022 |
| Bury Body Centre Ltd | Wholesale & retail | 2012 |
| Bury Bridge Storage Limited | Real estate | 2022 |
| Bury Cake Box Ltd | Hospitality | 2023 |
| Bury Car City Limited | Wholesale & retail | 2023 |
| Bury Car Club Ltd | Wholesale & retail | 2025 |
| Bury Car Trade Limited | Wholesale & retail | 2024 |
| Bury Carpets Holdings Ltd | Financial services | 2022 |
| Bury Carpets Limited | Wholesale & retail | 2013 |
| Bury Cash & Carry Ltd | Wholesale & retail | 2024 |
| Bury Chicken Limited | Hospitality | 2026 |
| Bury Chimney Sweep Ltd | Administrative & support | 2026 |
| Bury Chiropractic Limited | Health & social care | 2006 |
| Bury Commercial Finance Limited | Financial services | 2019 |
| Bury Construction Group Ltd | Construction | 2019 |
| Bury Convenience Store Limited | Wholesale & retail | 2022 |
| Bury Cuisine Ltd | Hospitality | 2025 |
| Bury Damp Solutions Ltd | Construction | 2025 |
| Bury Delivery Ltd | Transport & logistics | 2025 |
| Bury Denture Clinic Holdings Limited | Real estate | 2024 |
| Bury Denture Clinic Ltd. | Manufacturing | 2015 |
| Bury Drone Services Ltd | Professional & scientific | 2025 |
| Bury Fabrications Ltd | Manufacturing | 2006 |
| Bury FC Community Sports Trust Limited | Arts & recreation | 2020 |
| Bury Fellowship | Other services | 2012 |
| Bury Financial Advisers Limited | Financial services | 2008 |
| Bury Food Store Ltd | Wholesale & retail | 2024 |
| Bury Foot Clinic Limited | Health & social care | 2018 |
| Bury Football Club (2019) Ltd | Arts & recreation | 2019 |
| Bury Garage Conversions Limited | Construction | 2018 |
| Bury GAS Ltd | Construction | 2022 |
| Bury Gateway | Other services | 2002 |
| Bury Global Travel Ltd | Administrative & support | 2022 |
| Bury Golf Club Limited | Arts & recreation | 2014 |
| Bury GP Practices Limited | Health & social care | 2012 |
| Bury Grammar Schools Services Limited | Extraterritorial | 2012 |
| Bury Gymnastics Club Limited | Arts & recreation | 2009 |
| Bury Healthcare Ltd | Administrative & support | 2010 |