| Balyasny International (Holdings) Limited | London | 2022 |
| Balyasny International Asset Management II Limited | London | 2005 |
| Balyasny International Asset Management Limited | London | 2004 |
| Balyasny International II Ltd | London | 2023 |
| Balyasny International Ltd | London | 2022 |
| BAM Capital Ltd | London | 2020 |
| BAM Enterprise Group Ltd | Salford | 2025 |
| BAM Group (UK) Limited | Farnborough | 1978 |
| BAM Group Holdings Ltd | Manchester | 2018 |
| BAM Investire Limited | Belfast | 2023 |
| BAM Management Ltd | London | 2017 |
| BAM RE UK Holdings Ltd | London | 2021 |
| BAM Stiles Holdings Limited | Heathfield | 2022 |
| Bama Holdings Ltd | Huntingdon | 2025 |
| Bamakean Investments Limited | Orpington | 2016 |
| Bamam Limited | Hatfield | 2017 |
| Bamb Holdings Limited | Renfrew | 2022 |
| Bamber and Reddan Holdings Limited | London | 2013 |
| Bamber Associates Limited | Canterbury | 2009 |
| Bamber Bridge Holding Company Limited | Preston Lancs | 2024 |
| Bamber Bridge Trading Limited | Preston Lancs | 2024 |
| Bambi Properties Midlands Limited | Solihull | 2018 |
| Bambinos Nursery Group Limited | Thame | 2026 |
| Bamboo 1 Lending Limited | Southampton | 2020 |
| Bamboo 2 Lending Limited | Southampton | 2020 |
| Bamboo Cloud Holdings Limited | Bristol | 2020 |
| Bamboo Delta Bidco Ltd | London | 2025 |
| Bamboo Delta Midco Ltd | London | 2025 |
| Bamboo Funding Limited | Basildon | 2018 |
| Bamboo Group Holdings Limited | Cowbridge | 2021 |
| Bamboo Holdings Limited | Edinburgh | 2005 |
| Bamboo International Holdings Limited | Cromer | 2023 |
| Bamboo Investment Group Limited | Ashtead | 2026 |
| Bamboo Limited | Southampton | 2005 |
| Bamboo Marketing Northwest Limited | Manchester | 2020 |
| Bamboo Mart UK Limited | London | 2022 |
| Bamboo Nine Group Ltd | Brighton | 2020 |
| Bamboo Orchard Holdings Ltd | Leeds | 2023 |
| Bamboo Panda Ltd | Bath | 2015 |
| Bamboo Solutions Ltd | Cheadle | 2023 |
| Bamboo Stakes Limited | Limavady | 2023 |
| Bamboo Topco Limited | Southampton | 2016 |
| Bamboo-Growth Holdings Ltd | Plymouth | 2024 |
| Bambridge Holdings Ltd | Cheltenham | 2024 |
| Bambrough Limited | Stowmarket | 2025 |
| Bambru Ltd | Wakefield | 2025 |
| Bamburgh Bidco Limited | Teesside | 2024 |
| Bamburgh Capital Limited | Manchester | 2010 |
| Bamburgh Farms Ltd | Horncastle | 2015 |
| Bamburgh Finance Ltd | East Ham | 2025 |
| Bamburgh Holdings Limited | East Boldon | 2021 |
| Bamburgh Midco Limited | Teesside | 2024 |
| Bamburgh Properties NE Ltd | London | 2025 |
| Bamburgh Topco Limited | Teesside | 2024 |
| Bamburi Holdings Limited | Manchester | 2021 |
| Bame Capital Group Limited | London | 2019 |
| Bamenda Securities Limited | Basingstoke | 2019 |
| Bamford Door Holdings Limited | Stockport | 2022 |
| Bamford Glass Holdings Limited | Barnsley | 2023 |
| Bamford Holdings Limited | Merseyside | 2023 |
| Bamforth Evans Finance Ltd | Reading | 2026 |
| Bamgpu Limited | London | 2016 |
| Bamlastic Holdings Ltd | Winslow | 2023 |
| Bamlo Limited | Belfast | 2022 |
| Bamm (Holdings) Limited | Bristol | 2017 |
| Bamo Holdings Ltd | York | 2024 |
| Bampnigwe Holding Company Ltd. | King'S Lynn | 2019 |
| Bamson Property Limited | Droitwich | 2024 |
| Bamunu Ltd | Northwood | 2021 |
| BAN Credit Ltd | London | 2011 |
| Ban&Nab Ltd | Reading | 2020 |
| Bana One Limited | London | 2010 |
| Banair (Holdings) Ltd | Dudley | 2019 |
| Banana Farm Limited | Chelmsford | 2025 |
| Banana Girl Ventures Ltd | London | 2016 |
| Banana Group Limited | London | 2022 |
| Banana Moon Group Limited | Warwick | 2026 |
| Banana Moon Property Limited | Birstall | 2023 |
| Banana Pancakes Limited | Exeter | 2024 |
| Banana Woffles Limited | Herne Bay | 2025 |
| Bananaki Limited | London | 2024 |
| Bananda Limited | Bristol | 2008 |
| Banani Sakti Investments Ltd | Manchester | 2025 |
| Banat Holdings Ltd | High Wycombe | 2023 |
| Banbury Group Limited | Ashford | 2016 |
| Banbury News Holdings Limited | London | 2025 |
| Banbury Security Ltd | Witney | 2021 |
| Banc of America Strategic Investments Limited | London | 2025 |
| Bancar Technologies Limited | Manchester | 2016 |
| Banchory Financial Services Ltd | Edinburgh | 2016 |
| Banchory Holdings Limited | London | 2018 |
| Banchory Investments Limited | Norwich | 2019 |
| Bancomat Holdings Limited | London | 2019 |
| Bancroft Holdings (Sussex) Limited | Hailsham | 2001 |
| Bancroft Wealth Ltd | Monmouth | 2020 |
| Banctrust Group PLC | London | 2020 |
| Banctrust Investment Bank Limited | London | 2011 |
| Band Bidco Limited | London | 2024 |
| Band Group Holdings Limited | London | 2024 |
| Banda GAS Company Limited | London | 2023 |