| Baker Property Holdings Limited | Worcester | 2017 |
| Baker Recruitment Holdings Ltd | Leeds | 2023 |
| Baker Reynolds & Baker Limited | Halesowen | 2012 |
| Baker Reynolds & Baker Management Limited | Halesowen | 2012 |
| Baker Smith Holdings Ltd | Ramsgate | 2020 |
| Baker Stevens Holdings Ltd | Doncaster | 2026 |
| Baker Street Consultancy Limited | Leicester | 2007 |
| Baker Street EIS Limited | London | 2024 |
| Baker Street Financial Ltd | Norwich | 2026 |
| Baker Street Hair Salon Ltd | Guisborough | 2021 |
| Baker Street Holdings Limited | Knutsford | 2017 |
| Baker Street Partners Limited | Cardiff | 2025 |
| Baker Tilly Financial Management Limited | London | 2000 |
| Baker Tilly Investment Solutions Limited | London | 1986 |
| Baker's Stores,Limited | Betchworth | 1928 |
| Bakers Green Consultancy Limited | Ormskirk | 2016 |
| Bakers Group Holdings Ltd | Brentwood | 2026 |
| Bakers Investments Holdings Limited | Leicester | 2023 |
| Bakers of Danbury Limited | Chelmsford | 2019 |
| Bakersdozen Holdings Limited | Rochdale | 2020 |
| Bakersfield Holdings Ltd | London | 2026 |
| Bakersteel Holdings Ltd | Rotherham | 2024 |
| Bakertron INDUSTRIES101 Ltd | Chippenham | 2026 |
| Bakerville Ltd | Peterborough | 2021 |
| Bakerwood Holdings Ltd | Chatham | 2025 |
| Bakesets International Ltd | London | 2026 |
| Bakewell Limited | Bristol | 2021 |
| Bakfin Limited | Keighley | 2006 |
| Bakhold UK Ltd | Harrowgate | 2015 |
| Bakhrom Investments Ltd | Mildenhall | 2026 |
| Bakhter Money Transfer Limited | London | 2015 |
| Bakimci Holding Limited | London | 2022 |
| Bakkah Holdings Ltd | Nottingham | 2024 |
| Bakkara Limited | Chislehurst | 2016 |
| Bakkavor Estates Limited | London | 2008 |
| Bakkavor Pension Trustees Limited | London | 1988 |
| Bakks Business Services Limited | London | 2020 |
| Bako Bidco Ltd | Preston | 2024 |
| Bakose Holdings Limited | Chichester | 2012 |
| Bakounadi Limited | London | 2024 |
| Bakr Holdings Limited | Southall | 2021 |
| Bakro Group Holdings Limited | London | 2025 |
| Bakro Group Limited | London | 2018 |
| Bakshi Consulting Limited | London | 2011 |
| Bakul Vasant and Granddaughters Ltd | Stone | 2021 |
| Baky Group Ltd | London | 2024 |
| BAL Associates Limited | High Peak | 2007 |
| BAL Emmot Limited | London | 2021 |
| BAL Global Finance (UK) Limited | London | 1990 |
| BAL Holdings Limited | Surrey | 2005 |
| Bala Holdings Ltd | Scarborough | 2025 |
| Bala Productions Limited | London | 2021 |
| Baladart Holdings Limited | Reading | 2026 |
| Balaji Birmingham Ltd | Pinner | 2025 |
| Balaji KI JAI Limited | Chester | 2024 |
| Balaland Holding Limited | Birmingham | 2025 |
| Balan Holdings Limited | Stamford | 2018 |
| Balance FIX Limited | Rossendale | 2025 |
| Balance for Business Ltd | Plymouth | 2010 |
| Balance Legal Capital I UK Ltd | London | 2020 |
| Balance Legal Capital II UK B Ltd | London | 2024 |
| Balance Legal Capital II UK Ltd | London | 2021 |
| Balance Legal Capital III UK a Ltd | London | 2024 |
| Balance Projects Limited | London | 2016 |
| Balance: Wealth Planning Limited | Nottingham | 2013 |
| Balanced Books Holdings Ltd | Kilmarnock | 2024 |
| Balanced Financial Services Limited | Norwich | 2016 |
| Balanced Funding Solutions Limited | Chesterfield | 2009 |
| Balanced Grid Developments Limited | Romford | 2022 |
| Balancepath Financial Planning Ltd | Romford | 2024 |
| Balanus Assets Limited | Dereham | 2012 |
| Balarama UK Holding Limited | London | 2023 |
| Balaton & Co Ltd. | North Finchley | 1997 |
| Balaton Holdings Limited | London | 2021 |
| Balavagh Investments | Birmingham | 2014 |
| Balavale Ltd | Glasgow | 2018 |
| Balazoo Express Ltd | Greater London | 2011 |
| Balbec Capital Limited | London | 2010 |
| Balbis Limited | Barnet | 2019 |
| Balbisi Financial Services Limited | Salford | 2019 |
| Balblair Holdings Limited | Ardgay | 2025 |
| Balbourne Capital Partners Limited | London | 2009 |
| Balbourne Holdings Limited | London | 2011 |
| Balch Holdings Ltd | Chelmsford | 2008 |
| Balch Mortgages Ltd | Hengoed | 2022 |
| Balclutha Holdings Limited | Reading | 2021 |
| Balcombe Associates Ltd | London | 2018 |
| Baldenhall Holdings Limited | Malvern | 2006 |
| Balder Capital Ltd | London | 2015 |
| Balder Capital Nominees Ltd | London | 2020 |
| Balder Holdings Ltd | London | 2023 |
| Balderton Aviation Holdings Limited | Luton | 2005 |
| Balderton Capital Investment Limited | Warwickshire | 2025 |
| Baldman Capital Ltd | Canvey Island | 2025 |
| Baldomero Ltd | Wembley | 2024 |
| Baldota Group Holdings Limited | Edinburgh | 2021 |
| Baldota LAI Property Group Limited | Belfast | 2020 |
| Baldrand Bay Holdings Limited | Shirley | 2017 |
| Baldread Limited | Manchester | 2025 |
| Baldry Bros. Ltd | London | 2023 |