| Boyton Farms Company (Wilts) Limited | Nr Warminster. | 1976 |
| Boyton Hall Farms Limited | Braintree | 1983 |
| Boyton Hall Limited | London | 2013 |
| Boyturn Farms Limited | Omagh | 2017 |
| BOZ & Company (South West) Ltd | Stroud | 2023 |
| Bozedown Alpacas Limited | Reading | 2004 |
| Bozo & Lorraine Limited | Sawbridgeworth | 2025 |
| BP & MJ Pollard Limited | Holsworthy | 2003 |
| BP AG Services Ltd | Tadcaster | 2024 |
| BP Argo Ltd | Peterborough | 2016 |
| BPA Sales Ltd | Barton-Upon-Humber | 2022 |
| BPE Management Ltd | Coventry | 2025 |
| BPF Business Centre Ltd | Ringmer | 2024 |
| BPJ ARB Services Ltd | Gloucester | 2019 |
| BPS (Stumps Cross) Limited | Beccles | 2006 |
| BR Rope Partners Ltd | London | 2023 |
| Bracadale Marine Ltd | Isle Of Skye | 2019 |
| Bracebridge Tree Surgeons Limited | Knowle, Solihull | 2006 |
| Bracewell Farms Limited | Chorley | 1959 |
| Brackagh Poultry Ltd | Omagh | 2025 |
| Bracken Down Limited | Bristol | 2002 |
| Bracken Farm Ltd | Dungannon | 2016 |
| Bracken Glen Ltd | Lockerbie | 2023 |
| Bracken Hill Farms (NI) Ltd | Pomeroy | 2012 |
| Bracken View Working Dogs Ltd | Presteigne | 2025 |
| Brackenbarrow Farm Limited | Cockermouth | 2009 |
| Brackenburgh Home Farm Limited | Calthwaite | 2024 |
| Brackendale Tree Care Limited | Guildford | 2015 |
| Brackenhill Sport Horses Ltd | Pontefract | 2020 |
| Brackenmore Ltd | Great Chesterford | 2004 |
| Brackenrose Limited | East Grinstead | 1996 |
| Brackens Boarding Ltd | Glasgow | 2024 |
| Brackenview Hill Farm Ltd | Newry | 2026 |
| Brackley Dairies Limited | Armagh | 2017 |
| Brackley Farms Limited | Ross On Wye | 1985 |
| Brackston Land Ltd | Ross-On-Wye | 2012 |
| Braco Castle Farms Limited | Dunblane | 1997 |
| Braco Farm Ltd. | Aberdeenshire | 2004 |
| Brad Brett Farriery Ltd | Moreton-In-Marsh | 2021 |
| Brad Webb Limited | Diss | 2024 |
| Bradden Estates Management Ltd | Northampton | 2009 |
| Bradden Stud Ltd | Alderley Edge | 2018 |
| Bradenham Hall Limited | Thetford | 2010 |
| Brades Earthwise Solutions Limited | Lancaster | 2023 |
| Bradfield Farms Limited | Chippenham | 1983 |
| Bradfields Farm Limited | Taunton | 1960 |
| Bradford Riding School Limited | Knutsford | 2016 |
| Bradford Waste Traders Limited | Bradford | 1986 |
| Bradholme Produce Limited | Thorne | 1989 |
| Bradley Close Farm Ltd | Wylam | 2023 |
| Bradley Farming Limited | Cornwall | 2025 |
| Bradley Gate Farm Ltd | Brighouse | 2014 |
| Bradley Orchard Farms Limited | Frodsham | 2000 |
| Bradleys Farms Limited | Thornton Cleveleys | 2000 |
| Bradmoore Chambers Limited | Coventry | 2019 |
| Bradon Soft Fruit Farm Ltd | Milton Keynes | 2016 |
| Bradonwood Limited | Driffield | 2002 |
| Bradshaw Agricultural Services Limited | Uttoxeter | 2016 |
| Bradstone Flock Limited | Tavistock | 2020 |
| Bradstone Limited | Knaresborough | 2026 |
| Bradvine Limited | Cirencester | 2001 |
| Bradwell Community Orchard Group | Hope Valley | 2010 |
| Braebost Farms Ltd | Portree | 2016 |
| Braebuster Farm | Deerness | 2012 |
| Braegate Produce Limited | Derby | 2013 |
| Braehead (SFO Enterprises) Limited | Edinburgh | 1978 |
| Braehead Engineering (Westray) Limited | Kirkwall | 2009 |
| Braehill Farms Ltd | Middletown | 2013 |
| Braes Farm Kirtlebridge Limited | Lockerbie | 2016 |
| Braes Farm Limited | Skipton | 1995 |
| Braesgill Limited | Aviemore | 1996 |
| Braeside Industries Ltd | Stratford Upon Avon | 2018 |
| Braeside Small Holding Ltd | Gosforth | 2026 |
| Braesteads Farm Limited | Cumbria | 1993 |
| Braggington Pastures Ltd | Stratford-Upon-Avon | 2026 |
| Bragleenbeg Ltd | Oban | 2017 |
| Brahan Farms Limited | Dingwall | 1971 |
| Brahms Agro-Industries Ltd. | London | 2022 |
| Braidestone Farms Limited | | 1971 |
| Braidlaw Limited | Edinburgh | 2023 |
| Braidlea Inc Ltd | Edinburgh | 2025 |
| Braiseworth Hall Farms Limited | Saxmundham | 1950 |
| Braiseworth Orchards Limited | Colchester | 2001 |
| Brake Farm (Dunino) Limited | Forfar | 2003 |
| Brake Farm Yaxham Limited | Newmarket | 2021 |
| Bramall Farming Limited | Harrogate | 2014 |
| Bramble & Bloom Ltd | Selby | 2026 |
| Bramble and Nettle CIC | Swansea | 2022 |
| Bramble Angling Ltd | Swindon | 2017 |
| Bramble Dairy Co Ltd | Dumfries | 2025 |
| Bramble Equine Stud & Services Ltd | Eastleigh | 2019 |
| Bramble Farm Ltd | Cookstown | 2011 |
| Bramble Stud Ltd | Buckingham | 2025 |
| Bramblebee Farm Limited | Wisbech | 2013 |
| Brambles (Warwickshire) Ltd | Rugby | 2014 |
| Brambles Partnership Ltd. | Chipping Norton | 2016 |
| Brambletye Fruit Farm Ltd | Forest Row | 2005 |
| Bramdean Sleepers Ltd | Winchester | 2023 |
| Bramfield Hall Estate Limited | Halesworth | 2017 |
| Bramhall Dog Groomers 2024 Ltd | Stockport | 2024 |