| Baudelaire Dental Clinic Ltd | Abingdon | 2023 |
| Baudelaire Swindon Limited | Abingdon | 2026 |
| Bauer Radio's Cash for Kids Charities | Stockton-On-Tees | 2007 |
| Bauer Radio's Cash for Kids Charities (Scotland) | Edinburgh | 2010 |
| Bauer Surgical Limited | London | 2020 |
| Bauhaus Psychology Ltd | Taunton | 2024 |
| Bauk Community Interest Company | St. Albans | 2024 |
| Baur Care Limited | Southall | 2014 |
| Baurbagh Development Committee (BDC) Ltd | Ilford | 2025 |
| Bautista Care Limited | Edgware | 2023 |
| Bautista Ltd | Newcastle Upon Tyne | 2017 |
| Bauvo Limited | Harrow | 2023 |
| Bauxite Limited | Maidstone | 2026 |
| Bavac Care Ltd | Stoke-On-Trent | 2015 |
| Bavalia Medical Limited | Eastbourne | 2025 |
| Bavani Care Home Limited | London | 2016 |
| Bavarian Nordic UK Ltd | Altrincham | 2024 |
| Bavary Skincare Ltd | Harrow | 2024 |
| Bavura Limited | Rotherham | 2024 |
| BAW Care Ltd | London | 2026 |
| BAW Medical Ltd | Sale | 2011 |
| Bawa MED Limited | Leeds | 2020 |
| Bawa Medicare Ltd | Glasgow | 2016 |
| Bawarish Limited | Darlington | 2016 |
| Bawest Ltd | Manchester | 2025 |
| Bawnmore Care Ltd | Coventry | 2025 |
| Bawtry Care Limited | Bradford | 2017 |
| Bawtry Cosmetic & Implant Clinic Ltd | Doncaster | 2024 |
| Bawtry Dental, Cosmetic & Implant Clinic Ltd | Doncaster | 2012 |
| Bawtry Implant Clinic Ltd | Doncaster | 2025 |
| BAX Healthcare Ltd | Crewe | 2018 |
| Baxcon Ltd | Stockport | 2022 |
| Baxell Ltd | Wellingborough | 2013 |
| Baxendental Ltd | Warminster | 2006 |
| Baxmed Limited | Wilmslow | 2023 |
| Baxter Anaesthetics Limited | Wilmslow | 2023 |
| Baxter and Hill Ltd | Derby | 2016 |
| Baxter Dental Ltd | Wetherby | 2025 |
| Baxter Life Care Limited | Blackpool | 2014 |
| Baxter Medico-Legal Ltd | Nottingham | 2025 |
| Baxter Prosthetics (Expert Witness) Ltd | Burton Upon Trent | 2021 |
| Baxter Young Orthotics Ltd | Abingdon | 2021 |
| Baxters Companions Ltd | Gloucester | 2021 |
| Baxters Consultancy Limited | Staines-Upon-Thames | 2019 |
| Baxters Homecare Ltd | Slough | 2013 |
| Baxton’S Care Ltd | Smethwick | 2021 |
| Baxx Ventures Ltd | Enfield | 2020 |
| Bay Care Digital Ltd | Torquay | 2024 |
| Bay Care Domiciliary Care Ltd | Paignton | 2013 |
| Bay Care Plus Limited | Wolverhampton | 2013 |
| Bay Corporate Ltd | London | 2015 |
| Bay Counselling Services Ltd | Swansea | 2020 |
| Bay Court Residential Home Limited | Flint | 2015 |
| Bay Diagnostics Ltd | Birmingham | 2026 |
| Bay Home Care Limited | Grange Over Sands | 2014 |
| Bay Horse Medical Services Ltd | Bishop Auckland | 2023 |
| Bay House Care Ltd | Hove | 2010 |
| Bay House Dental Practice Limited | Cardiff | 2010 |
| Bay Medical Group Ltd | Morecambe | 2021 |
| Bay Medical Limited | Manchester | 2012 |
| Bay Nutrition Ltd | Port Talbot | 2025 |
| Bay Ophthalmic Ltd | Birmingham | 2020 |
| Bay Oral Health Limited | Penrith | 2007 |
| Bay Orthopaedics Ltd | Lancaster | 2016 |
| Bay Osteopath Ltd | Pinner | 2011 |
| Bay Podiatry Ltd | Whitley Bay | 2014 |
| Bay Psychotherapy & Supervision Limited | Swansea | 2021 |
| Bay Tree Chiropractic Ltd | Lymington | 2022 |
| Bay Tree Cookery Academy Community Interest Company | Liverpool | 2017 |
| Bay Tree Dental Centre Ltd | Basingstoke | 2010 |
| Bay Tree Dental Limited | Cheltenham | 2006 |
| Bay Tree House (Gravesend) Limited | Dartford | 2015 |
| Bay Tree House (Higham) Ltd | Higham | 2020 |
| Bay Tree House (WXM) Limited | Mexborough | 2016 |
| Bay Tree House Group Ltd | Gravesend | 2020 |
| Bay Tree Services Ltd | Borehamwood | 2024 |
| Bay Tree Therapeutic Play and Self-Healing Ltd | Matlock | 2023 |
| Bay Ultrasound Limited | Lancaster | 2016 |
| Bay Veteran's Association CIC | Carnforth | 2023 |
| Bay View Child Care Limited | Bromsgrove | 2010 |
| Bayam Medical Ltd | Manchester | 2015 |
| Bayarch Limited | Barry | 2013 |
| Bayat Medical Limited | Ferndown | 2016 |
| Bayberry House Ltd | Exeter | 2024 |
| Bayberry Limited | Taunton | 2009 |
| Baybridge Limited | London | 2016 |
| Baybridge Medical Ltd | London | 2013 |
| Bayburn Adhd Ltd | Bangor | 2025 |
| Baydan Ltd | London | 2019 |
| Baye Niass UK Ltd | London | 2019 |
| Bayethe Limited | Luton | 2021 |
| Bayfield Court Operations Limited | London | 2014 |
| Bayford New Horizons Limited | Epsom | 2009 |
| Bayhen Ltd | Exeter | 2025 |
| Bayhosh Medics Limited | Ipswich | 2023 |
| Bayis Sheli Ltd | London | 2005 |
| Bayith Rest Home Limited | Waterlooville | 2003 |
| Bayleaf Care Limited | Gateshead | 2023 |
| Bayleaf Holdings (Derby) Ltd | Burton-On-Trent | 2023 |
| Bayleh and Co Ltd | London | 2023 |