| Baxbay Limited | Hospitality | 2016 |
| Baxters Installations Ltd | Construction | 2026 |
| Bay Cottage Properties Limited | Real estate | 2014 |
| Bay Tree Bristol Ltd | Other services | 2024 |
| Bay-Kil Ltd | Wholesale & retail | 2018 |
| BAY12 Films Ltd | Information & communication | 2018 |
| Baycliff Developments (Bristol) Ltd | Real estate | 2019 |
| Baycliff House Management Company 1 Ltd | Real estate | 2020 |
| Bayesprice Limited | Information & communication | 2019 |
| Bayglen Holding Limited | Information & communication | 2008 |
| Bayhans Auto Ltd | Wholesale & retail | 2025 |
| Bayleaf Bristol Ltd | Hospitality | 2015 |
| Bayleaf Restaurant Bristol Ltd | Hospitality | 2023 |
| Bayleaf Stoke Gifford Ltd | Real estate | 2024 |
| Bayley HR Limited | Administrative & support | 2026 |
| Bayley Lettings Limited | Real estate | 2026 |
| Bayley M&E Ltd | Professional & scientific | 2025 |
| Baylis Estates Limited | Construction | 1976 |
| Baylis Trustee Company Limited | Professional & scientific | 2007 |
| Bayliss 11 Investments Ltd | Real estate | 2025 |
| Bayolo Limited | Real estate | 2025 |
| Bayon Kacee Ltd | Construction | 2024 |
| Bayrak London Limited | Other services | 2021 |
| Baysek Solutions Europe Ltd | Manufacturing | 2025 |
| Baysek Solutions UK Ltd | Manufacturing | 2025 |
| Bayshill Management (Glos) Ltd | Real estate | 2018 |
| Bayside Court Ltd | Construction | 2017 |
| Baytree Marketing Limited | Professional & scientific | 2024 |
| Baytree Road (WSM) Management Company Limited | Households | 2017 |
| Baytree West Ltd | Real estate | 2023 |
| Baytuk Ltd | Real estate | 2025 |
| Bazooka Bunny Limited | Information & communication | 2016 |
| BB Integrated Medical Solutions Limited | Health & social care | 2025 |
| BB Manufacturing Ltd | Manufacturing | 2015 |
| BB One (Bristol) Ltd | Administrative & support | 2026 |
| BB Promotions Ltd | Arts & recreation | 2026 |
| BB Supply Co Limited | Professional & scientific | 2022 |
| BBB Transport Ltd | Transport & logistics | 2016 |
| BBD Scaffolding Ltd | Construction | 2025 |
| Bbdw Limited | Hospitality | 2023 |
| Bbgp Ltd | Administrative & support | 2004 |
| Bbgr Limited | Manufacturing | 2000 |
| Bbitg Ltd | Information & communication | 2013 |
| BBL Bristol Limited | Hospitality | 2026 |
| BBL Lease Limited | Real estate | 2026 |
| Bbla Limited | Construction | 2014 |
| Bblocks Ltd | Manufacturing | 2025 |
| BBM Bristol Ltd | Wholesale & retail | 2024 |
| BBM Plumbing and Heating Limited | Construction | 2017 |
| BBM Publishing Ltd | Information & communication | 2025 |
| BBN Limited | Education | 2009 |
| BBR West 1 Ltd | Hospitality | 2020 |
| Bbrc Co-Living Limited | Real estate | 2020 |
| Bbrc Homes Limited | Financial services | 2023 |
| Bbrc Homes SPV 1 Limited | Construction | 2021 |
| Bbrc Homes SPV 2 Limited | Construction | 2021 |
| BBS Express Limited | Wholesale & retail | 2026 |
| BBS Homecare Ltd | Administrative & support | 2026 |
| BBS Plumbing and Heating Supplies Limited | Administrative & support | 2002 |
| BC and LJ Limited | Real estate | 2016 |
| BC Benez Intergrated Limited | Health & social care | 2024 |
| BC Carpentry & Build Ltd | Construction | 2017 |
| BC Movement Limited | Other services | 2026 |
| BCB Properties (Bristol) LLP | | 2018 |
| Bccs Endowment Fund | Education | 2009 |
| Bccsc 1 Limited | Extraterritorial | 2020 |
| Bcdf Ltd | Administrative & support | 2019 |
| BCE Cleaning Limited | Administrative & support | 2019 |
| BCE Developments Limited | Real estate | 2026 |
| BCE Management Limited | Real estate | 2019 |
| BCF Property Group Limited | Real estate | 2024 |
| Bcfc Heritage and Archive Limited | Arts & recreation | 2022 |
| Bcfc Limited | Professional & scientific | 1996 |
| BCH Care Limited | Health & social care | 1995 |
| BCH Construction Limited | Construction | 2007 |
| BCH Systems Limited | Information & communication | 2026 |
| BCI Decorating Limited | Construction | 2025 |
| Bcitycharlton Limited | Hospitality | 2023 |
| BCJ Loft Conversions Limited | Construction | 2026 |
| Bclear Communications Ltd | Professional & scientific | 2007 |
| BCM Serv Bristol Ltd | Construction | 2025 |
| BCM Serv Holdings Limited | Real estate | 2015 |
| BCM Serv Limited | Professional & scientific | 2018 |
| BCN Services Ltd | Transport & logistics | 2023 |
| Bcohco Ltd | Education | 2020 |
| BCS Wholesale Ltd | Wholesale & retail | 2016 |
| Bctc Land Limited | Extraterritorial | 1999 |
| Bctcproperties Ltd | Real estate | 2025 |
| Bcylandscapes Ltd | Administrative & support | 2024 |
| BD Mart Ltd | Wholesale & retail | 2020 |
| BD Quartz Ltd | Construction | 2020 |
| BD Racing Ltd | Professional & scientific | 2019 |
| BDA Estates Limited | Real estate | 2012 |
| Bdcmw Ltd | Construction | 2024 |
| BDD Plumbing and Heating Ltd | Construction | 2020 |
| BDI Resourcing Ltd | Administrative & support | 2017 |
| BDJ Florist Limited | Wholesale & retail | 2019 |
| BDM Car Wash Keynsham Ltd | Administrative & support | 2026 |
| BDM Trans Ltd | Transport & logistics | 2021 |
| Bdnk Utilities Limited | Construction | 2026 |