| Bourne Farm (Halstead) Limited | Halstead | 1949 |
| Bourne Farms Limited | | 2006 |
| Bourne Hill Stables Limited | Epsom | 2012 |
| Bourne Place Wood Limited | Tonbridge | 2005 |
| Bourne Valley Contract Farming Limited | Andover | 2008 |
| Bourne Valley Eggs Limited | Winchester | 2025 |
| Bourne VP Limited | Salisbury | 2013 |
| Bournville Beekeepers | Birmingham | 2016 |
| Boustead Agriculture Limited | London | 2012 |
| Boutiq Bullz Limited | Canterbury | 2016 |
| Boutport Limited | London | 1999 |
| Bouvels Ltd | Burnham-On-Crouch | 2021 |
| Bova-Gen Limited | Kelso | 2003 |
| Bovacott Farm Limited | Wadebridge | 2004 |
| Bovagh Limited | London | 2025 |
| Bovers Limited | London | 2015 |
| Boverton Nurseries Limited | South Wales | 1997 |
| Boveva Hill Farm Ltd | Dungiven | 2017 |
| Bovi Tech Breeding Ltd | Emsworth | 2026 |
| Bovi-Stop Limited | Middlesbrough | 2019 |
| Boviaid Limited | Harrogate | 2012 |
| BOW Farm Enterprises Ltd | Bridgwater | 2026 |
| BOW Farms Limited | Carlisle | 2008 |
| BOW Fiddle Fishing Company Limited | Buckie | 1997 |
| BOW Wood Farms Limited | Presteigne | 2008 |
| BOW WOW WOW VIP Ltd | Liverpool | 2024 |
| Boward Tree Surgery (Oxford) Limited | Witney | 1998 |
| Boward Tree Surgery Limited | Harefield, Uxbridge | 1990 |
| Bowbed Ltd | Braybrooke | 2025 |
| Bowd Farming Company Limited | Lincs | 2002 |
| Bowden Farm Partnership Limited | Buckfastleigh | 2017 |
| Bowden Farm Services Limited | Dorchester | 2002 |
| Bowden Springs Farm CIC | Totnes | 2022 |
| Bowdens Nursery Ltd | Okehampton | 2017 |
| Bowditch Countryside Management Limited | Bridport | 2019 |
| Bowdler Farms Limited | Shrewsbury | 2016 |
| Bowdler Plant & Agri Ltd | Rhydaman | 2026 |
| Bowdon View Farm Limited | Altrincham | 2022 |
| Bowe Dairy Farming Company Limited | Wigton | 2008 |
| Bowen Equestrian Limited | Coventry | 2011 |
| Bowen Fisheries and Camping Ltd | Deeside | 2023 |
| Bowen Landscape Management Ltd | Bromsgrove | 2019 |
| Bowen Mixed Farming Ltd | Narberth | 2023 |
| Bowen Sport Horses Limited | Preston | 2012 |
| Bowenhurst Kennels and Cattery Limited | Farnham | 2024 |
| Bower Holdings Ltd | Tunbridge Wells | 2018 |
| Bowers Hill Farm Limited | Cheltenham | 2021 |
| Bowes Farms Limited | Thetford | 2008 |
| Bowes Shellfish Ltd | Isle Of Skye | 2026 |
| Bowett Farm Limited | Haverfordwest | 2003 |
| Bowhayes Trees Limited | Ottery St Mary | 2015 |
| Bowhill Farming Limited | Selkirk | 2017 |
| Bowhouse Farming Limited | Kilmarnock | 2025 |
| Bowker Limited | Exeter | 2000 |
| Bowland Animal Experience Limited | Lytham St. Annes | 2014 |
| Bowland Bioenergy Limited | Preston | 2002 |
| Bowland Equine Therapy Limited | Lancaster | 2023 |
| Bowland Farms Estate Limited | Preston | 2014 |
| Bowland Treecraft Ltd | Whalley | 2015 |
| Bowlby Tree Services & Care Ltd | Lincoln | 2024 |
| Bowldown Farms Limited | Nr Tetbury | 1992 |
| Bowley Equestrian Ltd | Rochdale | 2025 |
| Bowley Farm Limited | Ashford | 2020 |
| Bowlings Livery and Education Limited | Haverfordwest | 2023 |
| Bowlings Riding School Limited | Haverfordwest | 2023 |
| Bowmans Leisure Limited | Newcastle Upon Tyne | 2001 |
| Bowmont Farming Limited | Kelso | 2017 |
| Bown & SON Limited | Wells | 2008 |
| Bowness Farming Limited | Retford | 2010 |
| Bowness Farms Limited | Cumbria | 2006 |
| Bowplant Ltd | Nuneaton | 2004 |
| Bowring Farms Ltd | Mansfield | 2026 |
| Bowshers Dog Ltd | Warrington | 2021 |
| Bowwow’S Dog Company Limited | Prestatyn | 2021 |
| Box END Firewood Ltd | Bedford | 2016 |
| Box Farm Ltd | Waltham Abbey | 2025 |
| Box Gardens Ltd | Alton | 2024 |
| Box River Vineyard Limited | Colchester | 2024 |
| Boxalbrook Stud and Forge Ltd. | Burgess Hill | 2009 |
| Boxbush Farm Limited | Westbury On Severn | 1992 |
| Boxford (Suffolk) Farms Limited | Colchester | 1993 |
| Boxmoor Trout Fishery Limited | Aylesbury | 1976 |
| Boxtree Game Supplies Limited | Ipswich | 2007 |
| Boxwell Farms (Tetbury) Limited | Bristol | 1973 |
| Boxworth 52 Limited | Huntingdon | 2024 |
| Boxworth Farming Co.Limited | Cambridgeshire | 1941 |
| BOY Enzo Fishing Ltd | Berwick-Upon-Tweed | 2021 |
| BOY Frazer Fishing Co Ltd | Lerwick | 2022 |
| BOY KAI AH68 Limited | Arbroath | 2022 |
| BOY Stan Fishing Company Ltd | Burra | 2012 |
| Boycast Limited | Shrewsbury | 1996 |
| Boyd Farming Limited | Edinburgh | 2005 |
| Boyd Forestry Services Limited | Bideford | 2019 |
| Boyd Line Limited | Hessle | 1980 |
| Boyden Aquatics Ltd | Margate | 2021 |
| Boyds Farm Ltd | Byfleet | 2025 |
| Boydside Ltd | Bath | 2017 |
| Boys Own Ltd | East Lothian | 2023 |
| Boystone Limited | Church Stretton | 2010 |
| Boystone Pembroke Ltd | Church Stretton | 2019 |