| Brain & Mind Medicolegal Ltd | London | 2023 |
| Brain & Spine Services Limited | Coventry | 2009 |
| Brain 22 Ltd | Wembley | 2022 |
| Brain Aaasset Ltd | Gateshead | 2011 |
| Brain and Body Wellness Ltd | Aldershot | 2025 |
| Brain and Spine Clinic Ltd | Bushey | 2010 |
| Brain and Spine Specialist Ltd | Estover | 2022 |
| Brain Body Agency Limited | London | 2024 |
| Brain Body Wealth Ltd | Chatteris | 2017 |
| Brain Brolly Ltd | Edinburgh | 2019 |
| Brain Centre Limited | Leeds | 2017 |
| Brain Child Psychology Services Ltd | Wells | 2025 |
| Brain Developmentuk Limited | Penryn | 2025 |
| Brain FOG Therapy Ltd | London | 2022 |
| Brain Health (London) Ltd | London | 2021 |
| Brain Health Collective Ltd | London | 2023 |
| Brain Health Consultancy Ltd | Wilmslow | 2023 |
| Brain Health Ltd | Wakefield | 2013 |
| Brain Injury IS Big | Woking | 2011 |
| Brain Injury Matters (NI) | Belfast | 1999 |
| Brain Injury Physiotherapy Ltd | Melton Mowbray | 2025 |
| Brain Injury Rehabilitation Trust | West Sussex | 1993 |
| Brain Injury Wales Limited | Porthcawl | 2007 |
| Brain Pinches Ltd | Liverpool | 2022 |
| Brain Products UK Ltd | Winchester | 2016 |
| Brain Recovery Zone Ltd | Hull | 2019 |
| Brain Reframe Ltd | Reigate | 2016 |
| Brain Train Ltd | Tonbridge | 2017 |
| Brain Tumour Focus CIC | York | 2025 |
| Brain Tumour Research | Milton Keynes | 2013 |
| Brain Tumour Support | Bristol | 2015 |
| Brain Tumour Surgery Limited | Winchester | 2010 |
| Brain Tumour UK | Fleet | 2006 |
| Brain Vision (UK) Ltd | Winchester | 2021 |
| Brain Waves C.I.C. | Dover | 2015 |
| Brain Wellness Ltd | London | 2021 |
| Brain Works Therapy Ltd | Ruislip, | 2023 |
| Brainbloom After School Club Limited | Beckenham | 2026 |
| Brainch Limited | Leicester | 2021 |
| Brainconversation Ltd | London | 2025 |
| Brainerd Limited | Hove | 2003 |
| Brainfocus Limited | London | 2014 |
| Braingevity Limited | Leicester | 2025 |
| Braingym Ltd | London | 2024 |
| Brainhealthclinic Ltd | London | 2025 |
| Brainhope Ltd | Ascot | 2024 |
| Brainlogia Ltd | London | 2024 |
| Brainmina Ltd | Birmingham | 2025 |
| Brainpal Ltd | Chelmsford | 2025 |
| Brains and Games Limited | London | 2018 |
| Brains Matter Charity | Tunbridge Wells | 1997 |
| Brains Powered by Music CIC | Liverpool | 2023 |
| Brainscan Limited | Scunthorpe | 2011 |
| Brainstate Ltd | Banbridge | 2021 |
| Brainstein Limited | Tadworth | 2013 |
| Brainstorm Haze Limited | Bromley | 2014 |
| Brainstorm Health Limited | Reading | 2013 |
| Brainstorm Health Solutions Limited | Marlow | 2016 |
| Braintree Area Foodbank Ltd | Braintree | 2012 |
| Braintree Dental Holding Limited | Borehamwood | 2025 |
| Braintree PCN Limited | North Finchley | 2024 |
| Brainwave (Services) Limited | Haywards Heath | 2014 |
| Brainwave Medical Ltd | Old Hall Road | 2022 |
| Brainwaves Brain Health Ltd | Northampton | 2026 |
| Brainworktherapy Ltd | Plymouth | 2018 |
| Brainworkz CIC | Richmond | 2025 |
| Brainy Buds Limited | London | 2026 |
| Braisha Limited | Carshalton | 2016 |
| Braithwaite Orthopaedics Ltd | Chester | 2011 |
| Brakenhale Limited | Cardiff | 2014 |
| Brama Care Ltd | Harrow | 2015 |
| Bramante Caring Hands Ltd | Nottingham | 2026 |
| Bramble Agencies Limited | Co Armagh | 2002 |
| Bramble Bay Limited | Kilgetty | 2006 |
| Bramble Brook Holiday Club Ltd | Bury St. Edmunds | 2021 |
| Bramble Care Homes Limited | Brighton | 1996 |
| Bramble Crescent Ltd | Harlow | 2026 |
| Bramble Diagnostics Limited | King'S Lynn | 2025 |
| Bramble Healthcare Ltd | Leicester | 2021 |
| Bramble Homecare Limited | Norwich | 2010 |
| Bramble Wood Day Nursery Ltd | Swadlincote | 2018 |
| Brambles Care Farm Limited | Cambridge | 2018 |
| Brambles Care Home Ltd | Leigh-On-Sea | 2003 |
| Brambles Care Limited | Ashford | 2015 |
| Brambles Childminding Ltd | Stevenage | 2019 |
| Brambles Healthcare Limited | Orpington | 2020 |
| Brambles Management Services Limited | Gerrards Cross | 2024 |
| Brambles of Oxted Limited | Oxted | 2020 |
| Brambley Cottage Day Nursery Limited | Hull | 2001 |
| Bramblings (Kent) Limited | Kent | 1990 |
| Bramdean Field C.I.C. | Exeter | 2026 |
| Bramhall and Cheadle Hulme PCN Limited | Manchester | 2022 |
| Bramhall Beeches Limited | Stockport | 2026 |
| Bramhall Care Limited | Manchester | 2023 |
| Bramhall Osteopathic Practice Limited | Stockport | 2022 |
| Bramhall Park Physiotherapy Limited | Cheadle Hulme | 2002 |
| Bramhall Smile Clinic Ltd | Stockport | 2023 |
| Bramhams Homecare Ltd | Elland | 2013 |
| Bramhi Healthcare Limited | Manchester | 2022 |
| Bramingham Dental Clinic Limited | Wembley | 2010 |