| Britmall Online Limited | Wholesale & retail | 2025 |
| Britmax Limited | Real estate | 2004 |
| Britmeals Limited | Transport & logistics | 2024 |
| Britmover Ltd | Wholesale & retail | 2026 |
| Brito Global Ltd | Transport & logistics | 2023 |
| Britons Business Solutions Limited | Administrative & support | 2013 |
| Britpolish Ltd | Administrative & support | 2024 |
| Brits College of Learning Ltd | Education | 2023 |
| Britserve Solutions Ltd | Extraterritorial | 2025 |
| Britsino Ltd | Wholesale & retail | 2024 |
| Britsmaid Ltd | Administrative & support | 2025 |
| Britsol Limited | Information & communication | 2019 |
| Britspace Modular Buildings Limited | Manufacturing | 2002 |
| Britsure Security Services Ltd | Administrative & support | 2024 |
| Britsure Services Ltd | Administrative & support | 2024 |
| Britta Ltd | Wholesale & retail | 2019 |
| Brittannia OIL Ltd | Manufacturing | 2025 |
| Brittech Global Ltd | Wholesale & retail | 2025 |
| Brittonvue Limited | Real estate | 2024 |
| Britvex Advisory Ltd | Professional & scientific | 2024 |
| Britvits Ltd | Wholesale & retail | 2018 |
| Britvogue Retail Limited | Wholesale & retail | 2025 |
| Britway Travel Ltd | Administrative & support | 2026 |
| Britwell OIL & Energy Solutions Limited | Mining & quarrying | 2025 |
| Britwell Pharma Ltd | Manufacturing | 2025 |
| Brity Group Ltd | Education | 2024 |
| Britzpay Ltd | Information & communication | 2025 |
| Britzy Ltd | Wholesale & retail | 2025 |
| Brivona Limited | Wholesale & retail | 2025 |
| Brivra Tech Ltd | Information & communication | 2025 |
| Brix and Mortar Developments Limited | Real estate | 2018 |
| Brix Consulting Group Ltd | Administrative & support | 2022 |
| Brixberg Limited | Information & communication | 2025 |
| Brixo Limited | Wholesale & retail | 2024 |
| Brixton Bizness Cafe Limited | Financial services | 2003 |
| Brixton Life Drawing Ltd | Construction | 2020 |
| BRJ Consulting Services Limited | Information & communication | 2008 |
| BRK 001 Limited | Energy | 2018 |
| BRK Burger&Grill Limited | Real estate | 2025 |
| BRM Solutions Ltd | Financial services | 2021 |
| Brmh Holdings Ltd | Real estate | 2025 |
| BRO & SIS Limited | Hospitality | 2024 |
| Broad Capital Group Limited | Professional & scientific | 2013 |
| Broad Capital Investments Limited | Financial services | 2014 |
| Broad Capital Markets Limited | Professional & scientific | 2017 |
| Broad Capital Trading Limited | Financial services | 2020 |
| Broad Energy (Roden) Limited | Energy | 2020 |
| Broad Energy Limited | Construction | 2013 |
| Broad Energy Trading Limited | Financial services | 2017 |
| Broad Fuels Limited | Wholesale & retail | 2014 |
| Broad Group (UK) Ltd | Professional & scientific | 2013 |
| Broad Medicals Limited | Health & social care | 2016 |
| Broad NOY Property Ltd | Real estate | 2026 |
| Broad Oak Building Services LLP | | 2018 |
| Broad One Limited | Extraterritorial | 2024 |
| Broad Property Holdings Limited | Financial services | 2025 |
| Broad Trading Ltd | Wholesale & retail | 2017 |
| Broad Tree Management Limited | Households | 2017 |
| Broad Two Limited | Extraterritorial | 2024 |
| Broadband Shack Ltd | Professional & scientific | 2018 |
| Broadbent Properties Limited | Real estate | 1976 |
| Broadbent's of Middleton Limited | Professional & scientific | 2025 |
| Broadbents Clothing Limited | Wholesale & retail | 2024 |
| Broadcast.Co Group Limited | Information & communication | 2022 |
| Broaden Films Ltd | Information & communication | 2023 |
| Broadey Gifts Limited | Wholesale & retail | 2010 |
| Broadfield Garden Supplies Limited | Wholesale & retail | 2022 |
| Broadford Estates (NO 2) Limited | Real estate | 2017 |
| Broadford Estates Limited | Real estate | 2003 |
| Broadhead Developments Limited | Construction | 2018 |
| Broadheath Property Holdings Limited | Real estate | 2023 |
| Broadhurst Transport Limited | Transport & logistics | 2008 |
| Broadlea Ltd | Professional & scientific | 2020 |
| Broadmeadow Management Limited | Real estate | 2020 |
| Broadmoor Brickworks Limited | Manufacturing | 1983 |
| Broadnest Services Limited | Other services | 2023 |
| Broadoak Electrical Limited | Construction | 2011 |
| Broadoak Funeral Services Limited | Other services | 2007 |
| Broadoak House Management Company Limited | Households | 2005 |
| Broadoak Park Properties Limited | Real estate | 1988 |
| Broadoak Primary School | Education | 2011 |
| Broadoak Private Finance Ltd | Financial services | 2014 |
| Broadpath General Trading Ltd | Extraterritorial | 2026 |
| Broadpay Limited | Professional & scientific | 2020 |
| Broadstone Plumbing Ltd | Construction | 2003 |
| Broadstonehall Investments Ltd | Real estate | 2025 |
| Broadsword Films Limited | Information & communication | 2017 |
| Broadthorn Construction Limited | Construction | 1975 |
| Broadthunder Accounting Limited | Professional & scientific | 2011 |
| Broadtrend Limited | Professional & scientific | 1987 |
| Broadview Forestry Partners LLP | | 2019 |
| Broadvision Limited | Wholesale & retail | 2013 |
| Broadwalk Investment Group Ltd | Real estate | 2023 |
| Broadway Accrington Management Ltd | Construction | 2020 |
| Broadway Beauty One Ltd | Other services | 2020 |
| Broadway Boulevard Holdings Limited | Real estate | 2022 |
| Broadway Boulevard Ltd. | Real estate | 2018 |
| Broadway Consult (UK) Ltd. | Information & communication | 2012 |
| Broadway Finance Limited | Financial services | 2000 |
| Broadway Garage Services Ltd | Wholesale & retail | 2021 |