| Bagforce Aggregates Group Limited | Harby | 2014 |
| Bagga Holdings Limited | Sutton | 2018 |
| Baggaley & Jenkins Remedials (Holdings) Limited | Sutton-In-Ashfield | 2014 |
| Baggaley Financial Limited | Rotherham | 2022 |
| Baggeridge Four Holdings Limited | Wolverhampton | 2025 |
| Baggeridge Holdings Ltd | Dudley | 2020 |
| Baggerman Wealth Management Ltd. | Newbury | 2014 |
| Baggette & Company Wealth Management Limited | Poole | 2010 |
| Baggot Holdings Limited | London | 2024 |
| Bagheera Capital Limited | Liverpool | 2023 |
| Bagherli Family Holding Company Limited | Woking | 2026 |
| Bagilegh Investments Limited | Stockport | 2017 |
| Bagira Limited | London | 2016 |
| Bagista Holdings Ltd | London | 2021 |
| Baglan Birchgrove Holding Company Limited | Baglan | 2022 |
| Bagley Investment Group Ltd | Chelmsford | 2022 |
| Bagleys Sales and Property Management Limited | Stourport-On-Severn | 2007 |
| Bagnall Environmental Group Limited | Stafford | 2023 |
| Bagnall Heights Holdings Limited | Stoke On Trent | 2024 |
| Bagnolandia Limited | Aberdeen | 2025 |
| Bagnold Associates Limited | Warminster | 1999 |
| Bagp Holdings Ltd | Cardiff | 2023 |
| Bagri Holdings Ltd | 145 Granville Street | 2026 |
| Bags and Covers Direct Holdings Limited | Wakefield | 2026 |
| BAH Investment Design Corporation Ltd. | Birmingham | 2019 |
| BAH Remit Limited | Birmingham | 2022 |
| Bahaa Fathi Mohamed for Trade Ltd | London | 2025 |
| Bahadur Group Limited | Alcombe Minehead | 2020 |
| Bahamas Invest Holding Limited | Loughborough | 2021 |
| Bahame Group Ltd | Nottingham | 2025 |
| Bahar Holdings Limited | Birmingham | 2026 |
| Bahar Money Transfer Ltd | Edgware | 2015 |
| Bahara Holding Limited | Ilford | 2019 |
| Bahari Holdings Limited | London | 2025 |
| Bahari Investments Limited | Stanmore | 2022 |
| Bahia Industries Limited | Ashford | 2019 |
| Bahisfinshaw Limited | Guildford | 2024 |
| Bahk Holdings Limited | Oxford | 2014 |
| Bahno Limited | London | 2019 |
| Bahson Holdings Limited | Wakefield | 2019 |
| Bahth Holdings Ltd | Derby | 2026 |
| BAI (Run-Off) Ltd | London | 1881 |
| BAI Corporate Holdings Ltd | Epsom | 2024 |
| Baigrie Holdings Limited | London | 2025 |
| Baikal Consulting Ltd | London | 2011 |
| Bail Bonds Ltd | Hull | 2022 |
| Bail Group Ltd | Montrose | 2025 |
| Baile Investments Limited | London | 2026 |
| Baileigh Holdings Ltd | Ilkeston | 2025 |
| Bailen Ltd | Haslemere | 2025 |
| Baileog Underwriting Limited | London | 2003 |
| Bailey & Clarence Ltd | London | 2025 |
| Bailey & Scott Ltd | Urmston | 2019 |
| Bailey and Jones Group Limited | London | 2024 |
| Bailey Capital Limited | Beaconsfield | 2017 |
| Bailey Capital Partners Limited | Braintree | 2024 |
| Bailey Capital Ventures Ltd | Bury St. Edmunds | 2024 |
| Bailey Civils Holdings Limited | Halesowen | 2024 |
| Bailey Clan Ltd | Waltham Cross | 2026 |
| Bailey Construction (Derby) Holdings Limited | Belper | 2015 |
| Bailey Cook Financial Planning Ltd | Bath | 2018 |
| Bailey Family Group Limited | Crewe | 2020 |
| Bailey Family Investments PLC | Neath Abbey | 2001 |
| Bailey Finance Ltd | Hinckley | 2019 |
| Bailey Financial Limited | | 2004 |
| Bailey Financial Mortgages Ltd | London | 2021 |
| Bailey Financial Services ( Preston ) Limited | Pope Lane Whitestake Preston | 2007 |
| Bailey Financial Services (Whitestake) Limited | Preston | 2008 |
| Bailey Grove Partners Ltd | Norwich | 2024 |
| Bailey Holdings (Sussex) Limited | Hailsham | 2023 |
| Bailey Hugo Limited | London | 2025 |
| Bailey Investments Ltd | Braintree | 2015 |
| Bailey J R Limited | Bedford | 2026 |
| Bailey James Holdco Ltd | London | 2024 |
| Bailey Johnson Hayes Solutions Limited | Stockport | 2026 |
| Bailey Lets Limited | Southgate | 2017 |
| Bailey Propco Holdings Limited | Macclesfield | 2021 |
| Bailey Property Group Limited | Stockport | 2020 |
| Bailey's Home Loans Ltd | Stockport | 2020 |
| Bailey's Investments Properties Group Ltd | Milton Keynes | 2024 |
| Bailey's Mortgage Services Ltd | Stockport | 2017 |
| Bailey's of Witham Limited | Darlington | 2024 |
| Baileygomm Group Limited | Ware | 2018 |
| Baileys and Partners Holdings Limited | Gaerwen | 2025 |
| Baileywood Financial Planning Ltd | Tring | 2014 |
| Bailie Holdings Ltd | Birmingham | 2026 |
| Baillie Building & Loan Limited | Glasgow | 2025 |
| Baillie Financial Limited | Perth | 2018 |
| Baillie Gifford & Co Limited | Edinburgh | 1979 |
| Baillie Gifford China Growth Trust PLC | London | 1907 |
| Baillie Gifford Co-Invest (NO. 1) GP Limited | Edinburgh | 2024 |
| Baillie Gifford European Growth Trust PLC | London | 1972 |
| Baillie Gifford General Partner Limited | Edinburgh | 2021 |
| Baillie Gifford Japan Trust Public Limited Company (the) | Edinburgh | 1981 |
| Baillie Gifford Life Limited | Edinburgh | 1998 |
| Baillie Gifford Overseas Limited | Edinburgh | 1983 |
| Baillie Gifford Shin Nippon Public Limited Company | Edinburgh | 1985 |
| Baillie Gifford UK Growth Trust PLC | London | 1994 |
| Baillie Gifford US Growth Trust PLC | London | 2018 |
| Baillie Wind Farm Community Benefit Fund | Thurso | 2013 |