| Bello Property Management Limited | Real estate | 2024 |
| Bellofina Ltd | Extraterritorial | 2011 |
| Bells & Whistles PR Limited | Professional & scientific | 2016 |
| Belltown Group Limited | Professional & scientific | 2013 |
| Belltown Power UK Limited | Energy | 2015 |
| Belltown Power UK Platform 2 Limited | Energy | 2025 |
| Belltown Power UK Wind Holdco Limited | Energy | 2020 |
| Belltown Power UK Wind Limited | Energy | 2020 |
| Bellwind Estates Limited | Professional & scientific | 1987 |
| Bellwind Limited | Professional & scientific | 1984 |
| Bellwind Partnerships Limited | Professional & scientific | 1994 |
| Bellwind-Edis Limited | Professional & scientific | 2001 |
| Bellydance Summer School Ltd | Other services | 2025 |
| Belmaran LP | | 2012 |
| Belmont 26 Management Company Limited | Households | 2026 |
| Belmont Drafting Services Ltd | Professional & scientific | 2015 |
| Belmont House Clinic Limited | Real estate | 2020 |
| Belmont House Osteopaths Limited | Health & social care | 2017 |
| Belmont Vets Ltd | Extraterritorial | 2006 |
| Beloe Mews Management Limited | Households | 2015 |
| Belonging Childcare Ltd | Education | 2025 |
| Belorama Limited | Arts & recreation | 2024 |
| Belos Transport Limited | Wholesale & retail | 2020 |
| Beloved Bristol Cleaning Services Ltd | Administrative & support | 2025 |
| Below the Surface Ltd | Professional & scientific | 2026 |
| Belsyre Holdings Limited | Real estate | 2019 |
| Belton Woods Lodges Limited | Hospitality | 2015 |
| Belton Woods Lodges Management Company Limited | Households | 2025 |
| Belvedere Building Limited | Construction | 2021 |
| Belvedere Business Services Limited | Professional & scientific | 2019 |
| Belvedere House Management Services Company Limited | Households | 2020 |
| Belvedere Living Ltd | Real estate | 2026 |
| Belvedere Sloane Ltd | Professional & scientific | 2025 |
| Belyn Properties Limited | Construction | 1973 |
| Bemada Limited | Construction | 2019 |
| Bemyguest Ltd | Real estate | 2018 |
| BEN Andrews Consultancy Limited | Professional & scientific | 2012 |
| BEN Chai LLP | | 2019 |
| BEN Corden Cardiology Ltd | Health & social care | 2025 |
| BEN Foley Films Ltd | Information & communication | 2016 |
| BEN Haslett Consulting Limited | Professional & scientific | 2025 |
| BEN Hunt Design Limited | Professional & scientific | 2023 |
| BEN Lock Golf Limited | Wholesale & retail | 2014 |
| BEN Nevis for Trading & Investments Ltd | Wholesale & retail | 2019 |
| BEN O'Connor Property Consultancy Limited | Real estate | 2020 |
| BEN Peace Limited | Information & communication | 2005 |
| BEN Russell Carers Limited | Administrative & support | 2006 |
| BEN Shaddick Electrical Ltd | Construction | 2026 |
| BEN Simmonds Ltd | Information & communication | 2016 |
| BEN Supermarket Ltd | Wholesale & retail | 2020 |
| BEN Wilson Bathrooms Ltd | Construction | 2012 |
| Benaglow Management Limited | Households | 1981 |
| Benatex LP | | 2015 |
| Bence Holdings Limited | Financial services | 2024 |
| Bence Mobile Partnership | | 1991 |
| Bence Service Limited | Other services | 2025 |
| Bench (Bristol) Ltd | Construction | 2014 |
| Bench Professional Services Limited | Financial services | 2016 |
| Bench, Plumbing, Heating and GAS Services Limited | Energy | 2018 |
| Benchmark Building and Property Contractors Ltd | Construction | 2018 |
| Benchmark Contracting Ltd | Administrative & support | 2018 |
| Benchmark Design Limited | Manufacturing | 1995 |
| Benchmark South West Limited | Construction | 2014 |
| Benco Plumbing & Heating Ltd | Construction | 2019 |
| Benco Supplies Limited | Wholesale & retail | 2014 |
| Bendi Foods Ltd | Hospitality | 2023 |
| Bendle Bespoke Ltd | Real estate | 2023 |
| Bendle Motors Limited | Wholesale & retail | 1954 |
| Bendpar Limited | Households | 1980 |
| Bendrey Brothers Limited | Wholesale & retail | 2004 |
| Bendrey Brothers Sawmills Limited | Manufacturing | 2016 |
| Bendy Bars Ltd | Hospitality | 2010 |
| Bene House Management Limited | Real estate | 1986 |
| Benedex Ltd | Manufacturing | 2019 |
| Benedict Properties Limited | Real estate | 2022 |
| Benedict Wallis Ltd | Information & communication | 2019 |
| Benedicta Healthcare Ltd | Health & social care | 2025 |
| Benedicts of Bristol Limited | Wholesale & retail | 2012 |
| Beneficial Business Limited | Real estate | 2001 |
| Benefit Legal Services Ltd | Professional & scientific | 2012 |
| Benellen Towers Residents' Association Limited | Households | 1969 |
| Benevolence Properties - Architects, Consultants Limited | Construction | 2021 |
| Benevolence Properties - Investment Limited | Construction | 2024 |
| Benevolence Properties - Management Limited | Real estate | 2022 |
| Bengalz Ltd | Wholesale & retail | 2025 |
| Benger Consultancy Ltd | Other services | 2024 |
| Benguni Limited | Health & social care | 2025 |
| Benita Construction Limited | Construction | 2025 |
| Benjamin & SON Limited | Hospitality | 2014 |
| Benjamin Bruno Consultancy Limited | Professional & scientific | 2013 |
| Benjamin Moore Land Surveys Ltd. | Professional & scientific | 2013 |
| Benjamin Scrase Limited | Professional & scientific | 2020 |
| Benji and Son's Limited | Health & social care | 2018 |
| Benji Foods Ltd | Hospitality | 2022 |
| Benjy Properties Limited | Real estate | 2020 |
| Benkel Limited | Health & social care | 2024 |
| Benkenstein Sports & Media Limited | Professional & scientific | 2025 |
| Bennett & Co Enterprise Ltd | Households | 2025 |
| Bennett Consulting South West Ltd | Real estate | 2023 |
| Bennett Engineering Solutions Limited | Administrative & support | 2018 |