| BB Chiropractors Ltd | Health & social care | 2010 |
| BBL Holder Group Limited | Wholesale & retail | 2023 |
| BBP Industrial Limited | Extraterritorial | 2010 |
| BC Design Solutions Ltd | Construction | 2019 |
| BC I International Design Co., Ltd | Extraterritorial | 2017 |
| BCS Packaging Ltd | Extraterritorial | 2017 |
| Bcst Group Co., Ltd. | Manufacturing | 2018 |
| BD Lofts & Construction Ltd | Construction | 2021 |
| BDE Services Ltd | Construction | 2025 |
| Bdth Limited | Construction | 2025 |
| BE Future Ready Today Limited | Professional & scientific | 2019 |
| BE Harbour Marine Co., Ltd. | Manufacturing | 2022 |
| BE the Jones Enterprises Ltd | Professional & scientific | 2015 |
| Beacon Industries Ltd | Extraterritorial | 2015 |
| Beaeon Limited | Wholesale & retail | 2018 |
| Beall Steel Co., Ltd | Extraterritorial | 2023 |
| Beauty & Massage Therapy Ltd | Other services | 2023 |
| Beauty Caress Ltd | Wholesale & retail | 2025 |
| Beauty Packaging Co ., Ltd | Wholesale & retail | 2024 |
| Beauty@Hair on the Green Limited | Other services | 2012 |
| Beck Bayer (UK) Ltd. | Extraterritorial | 2018 |
| Beck Capital Limited | Financial services | 2019 |
| Beck Lane Allotments Society Limited | Arts & recreation | 2019 |
| Beck River Park (Management) Limited | Households | 1964 |
| Beck-Industries Limited | Manufacturing | 2020 |
| Beckenham Access Limited | Construction | 2009 |
| Beckenham and Bromley Services Ltd | Construction | 2019 |
| Beckenham Building Services Ltd. | Construction | 2017 |
| Beckenham Building Solutions Limited | Construction | 2023 |
| Beckenham Carpentry Limited | Manufacturing | 2021 |
| Beckenham Carpets Ltd | Wholesale & retail | 2016 |
| Beckenham Ductwork Services Ltd | Construction | 2017 |
| Beckenham Estates Limited | Real estate | 1980 |
| Beckenham Fine Foods Limited | Hospitality | 2017 |
| Beckenham Flowers Studio Limited | Wholesale & retail | 2015 |
| Beckenham Food & Wine Limited | Wholesale & retail | 2024 |
| Beckenham Grill Ltd | Hospitality | 2026 |
| Beckenham Hearing Limited | Wholesale & retail | 2019 |
| Beckenham Heating & Plumbing Limited | Administrative & support | 2017 |
| Beckenham Interiors Limited | Manufacturing | 2015 |
| Beckenham Montessori Pre-School Limited | Education | 2016 |
| Beckenham PCN Limited | Health & social care | 2022 |
| Beckenham Place Park Management Company Limited | Households | 1965 |
| Beckenham Property Company Limited | Real estate | 2009 |
| Beckenham Proprietary Limited | Other services | 1920 |
| Beckenham Psychological Therapies Limited | Health & social care | 2017 |
| Beckenham Shoe Repairs Ltd | Other services | 2026 |
| Beckenham Spinal Health Ltd | Health & social care | 2023 |
| Beckenham Sports Club | Arts & recreation | 2016 |
| Beckenham Town FC Ltd | Arts & recreation | 2024 |
| Becomaware Limited | Education | 2020 |
| BEE Marine Equipment Co., Ltd | Extraterritorial | 2022 |
| Beech Court (Beckenham) Limited | Households | 2016 |
| Beech Court Management (Beckenham) Limited | Households | 1989 |
| Bees Nest Limited | Information & communication | 2024 |
| Beeyond Events Limited | Administrative & support | 2014 |
| Behaviour Academy Ltd | Professional & scientific | 2014 |
| BEI GAO Feng Technology Co., Ltd | Professional & scientific | 2018 |
| Beiaierlan Bann Seaweed Co., Ltd | Extraterritorial | 2025 |
| Beide (UK) Product Service Limited | Extraterritorial | 2009 |
| Beiersdorf Verbindungstechnik Co., Ltd. | Extraterritorial | 2015 |
| Beigani Services Limited | Administrative & support | 2012 |
| Beijing Chaoqun Weiye Intl Co Ltd | Wholesale & retail | 2014 |
| Beijing Sino-Asia Trading Co., Ltd | Extraterritorial | 2019 |
| Beijing Toplaser Technology Co., Ltd | Manufacturing | 2014 |
| Beishuo International Co., Ltd | Extraterritorial | 2016 |
| Beka Trade Limited | Extraterritorial | 2024 |
| Beker Energy Ltd | Wholesale & retail | 2023 |
| BEL AMI Ltd | Wholesale & retail | 2023 |
| Belair Properties Limited | Real estate | 2016 |
| Belgium Annely Co., Ltd | Extraterritorial | 2022 |
| Belgium Anuom Fertilizers Co., Ltd | Extraterritorial | 2015 |
| Belgium Fuyanuo Ltd | Extraterritorial | 2023 |
| Belgium Kelusuo Chemcial Industry Ltd | Extraterritorial | 2023 |
| Belgium Shima (Europe) Chemical Industry Ltd | Extraterritorial | 2024 |
| Belgium Shima BIO Technology Ltd | Extraterritorial | 2021 |
| Belgium Suoteng Fertilizer Ltd | Extraterritorial | 2023 |
| Belgium Wofeng International Chemical Industry Ltd | Extraterritorial | 2024 |
| Beliness Limited | Manufacturing | 2025 |
| Belium Hydraulic Tools UK Ltd | Extraterritorial | 2017 |
| Belize Technology Co., Ltd | Extraterritorial | 2019 |
| Bell Industry Co., Ltd | Wholesale & retail | 2024 |
| Bella Donata Limited | Hospitality | 2007 |
| Bella Global Trading Limited | Extraterritorial | 2020 |
| Belles of London Limited | Extraterritorial | 2014 |
| Bellewood Consulting Limited | Professional & scientific | 2009 |
| Bellissima Nurseries Limited | Education | 2013 |
| Bello Electric and Building Services Ltd | Construction | 2025 |
| Belloq Films Limited | Information & communication | 2022 |
| Belouder Limited | Professional & scientific | 2022 |
| Belt and Road International Public Welfare Federation | Real estate | 2024 |
| Belt Road Global XEN Commerce Ltd | Wholesale & retail | 2019 |
| BEN One Ltd | Wholesale & retail | 2025 |
| Benben Trading & Service Co., Ltd | Wholesale & retail | 2020 |
| Benberg Electric (UK) Limited | Extraterritorial | 2016 |
| Benchmark Technology Ltd | Information & communication | 2023 |
| Benchmode Analysis Limited | Real estate | 1995 |
| Benelephant Painting UK Co Ltd. | Manufacturing | 2022 |
| Benetalk Ltd | Professional & scientific | 2015 |
| Bengbu Huadong Biological Technology Co., Ltd. | Extraterritorial | 2021 |