| BRM Flame Ltd | Hospitality | 2025 |
| Broadcast Support Limited | Information & communication | 2009 |
| Broadgrey Ltd | Professional & scientific | 2023 |
| Broadwater Management (UK) Limited | Households | 2011 |
| Broadway Mansions Ltd | Real estate | 2025 |
| Broccoli Marketing Limited | Administrative & support | 2006 |
| Brockwell & Co Ltd | Wholesale & retail | 2024 |
| Brombick Electrical Limited | Construction | 2022 |
| Brombridge Property Company Limited | Real estate | 1976 |
| Bromcom Computers PLC | Wholesale & retail | 1986 |
| Bromcom Technologies Ltd. | Manufacturing | 2014 |
| Bromlet Limited | Real estate | 2023 |
| Bromley Malayalee Community Ltd | Health & social care | 2025 |
| Bromley & Lewisham Mencap | Education | 1987 |
| Bromley Accountants Limited | Professional & scientific | 2012 |
| Bromley Accounting Limited | Extraterritorial | 2015 |
| Bromley Allotments & Leisure Gardens Limited | Arts & recreation | 2019 |
| Bromley and Beckenham Hockey Club Limited | Arts & recreation | 2017 |
| Bromley Associates Limited | Professional & scientific | 2011 |
| Bromley Boiler Specialists Limited | Construction | 2020 |
| Bromley Bouncy Castles Limited | Arts & recreation | 2022 |
| Bromley Builds Ltd | Construction | 2024 |
| Bromley Cafe Limited | Hospitality | 2022 |
| Bromley Car Repairs Limited | Wholesale & retail | 2007 |
| Bromley Car Services Ltd | Wholesale & retail | 2009 |
| Bromley Common Allotment Garden Association | Arts & recreation | 2019 |
| Bromley Common Residents Association Limited | Households | 2015 |
| Bromley Common Seafood Stall Ltd | Wholesale & retail | 2025 |
| Bromley Community Services Ltd | Health & social care | 2016 |
| Bromley Construction Ltd | Construction | 2022 |
| Bromley Consultancy Limited | Professional & scientific | 2012 |
| Bromley Convenience Store Ltd | Wholesale & retail | 2025 |
| Bromley Court Management Ltd. | Households | 1989 |
| Bromley Cricket Club | Arts & recreation | 2010 |
| Bromley Curry House Ltd | Hospitality | 2019 |
| Bromley CWA Ltd | Extraterritorial | 2015 |
| Bromley East Limited | Other services | 2019 |
| Bromley Education Sport Training Ltd | Education | 2015 |
| Bromley F.C. (95) Limited | Arts & recreation | 1995 |
| Bromley FC Academy Limited | Extraterritorial | 2009 |
| Bromley FC Community Sports Trust | Education | 2021 |
| Bromley Ferrous & NON Ferrous Ltd | Wholesale & retail | 2022 |
| Bromley Floors Limited | Construction | 2013 |
| Bromley Garden Rooms Ltd | Construction | 2019 |
| Bromley Halal Catering Limited | Hospitality | 2025 |
| Bromley Hardware Ltd | Wholesale & retail | 2022 |
| Bromley Harwood Consulting Ltd | Professional & scientific | 2025 |
| Bromley Home Exacting Standard Ltd | Construction | 2025 |
| Bromley Islamic Centre Ltd | Other services | 2024 |
| Bromley Kitchen & Bathroom Fitters Ltd | Construction | 2025 |
| Bromley Kitchens and Bathrooms Ltd | Construction | 2026 |
| Bromley Leak Detection Ltd | Households | 2026 |
| Bromley Lifts Limited | Manufacturing | 2023 |
| Bromley Little Theatre, Limited | Arts & recreation | 2007 |
| Bromley Local Supermarket Ltd | Wholesale & retail | 2025 |
| Bromley Maintenance Limited | Water & waste | 2023 |
| Bromley Masonic Hall Limited | Hospitality | 1907 |
| Bromley Meat & Co Limited | Wholesale & retail | 2026 |
| Bromley Mencap Enterprises Limited | Extraterritorial | 1994 |
| Bromley Mobiles Ltd | Wholesale & retail | 2019 |
| Bromley Moto Services Limited | Wholesale & retail | 2023 |
| Bromley Motorcycles Ltd | Wholesale & retail | 2025 |
| Bromley Paving Landscape Ltd | Construction | 2026 |
| Bromley Quality Halal Meat and Fish Ltd | Wholesale & retail | 2025 |
| Bromley Road (Catford) Maintenance Limited | Households | 1969 |
| Bromley Supermarket Ltd | Wholesale & retail | 2025 |
| Bromley Taylor Ltd | Other services | 2025 |
| Bromley Thai Ltd | Other services | 2026 |
| Bromley Virtual Hub Ltd | Information & communication | 2025 |
| Bromley Voluntary Sector Trust | Administrative & support | 1997 |
| Bromley Youth Music Trust | Education | 1993 |
| Bromworth Solutions Limited | Professional & scientific | 2023 |
| Brook Testing Solutions Ltd | Information & communication | 2014 |
| Brookbank Road Management Company Limited | Households | 2013 |
| Brookbury House RTM Company Limited | Households | 2022 |
| Brooklands Commercial Finance Limited | Financial services | 2003 |
| Brookpace Limited | Other services | 2023 |
| Brookwood Close (FWP) Limited | Households | 1988 |
| Broomhill Lodge (Bromley) Ltd | Households | 2025 |
| Broomsleigh House RTM Company Limited | Households | 2022 |
| Brother Wolf Ltd | Arts & recreation | 2023 |
| Brothers Grimm Ltd | Extraterritorial | 2025 |
| Brown Invested Limited | Real estate | 2007 |
| Brown PIG Thinking Ltd | Professional & scientific | 2021 |
| Brownhill Holdings Limited | Administrative & support | 1999 |
| Brownhill Insurance Group Limited | Financial services | 1980 |
| Browning Street Management Limited | Real estate | 1987 |
| Broxa Ltd | Professional & scientific | 2025 |
| BRP Accountancy Limited | Professional & scientific | 2013 |
| Bruce Baron Consulting Ltd | Professional & scientific | 2026 |
| Bruno Grill Limited | Hospitality | 2025 |
| Brush Strokes Decorating (UK) Limited | Construction | 2009 |
| Brusk Property Investment Limited | Real estate | 2022 |
| Bryan Green Carpentry & Construction Ltd | Manufacturing | 2023 |
| BS Gtbb Ltd | Manufacturing | 2025 |
| BS Marine Ltd | Extraterritorial | 2025 |
| BSA Sport Ltd | Manufacturing | 2018 |
| BSB Mechanical Limited | Administrative & support | 2016 |
| BSC Mentoring Ltd | Education | 2016 |
| BSD Ventures Limited | Real estate | 2019 |