| B & S Farming Limited | Bury St. Edmunds | 2017 |
| B & S Farms Limited | Worksop | 2013 |
| B & S Pigs Limited | Aylmerton | 2020 |
| B & S Property Services Limited | Rye | 2016 |
| B & W Farms Limited | King'S Lynn | 1988 |
| B & W Trees Ltd | East Yorkshire | 2002 |
| B a Kirk Engineering Ltd | Sheppey | 2010 |
| B and B Jones Limited | Oswestry | 2008 |
| B and M Contracts Ltd | Ty Croes | 2025 |
| B and M Pallets Limited | Kettering | 2002 |
| B and W Feeds (Mobile) Limited | Taunton | 1998 |
| B B Storage Limited | Tain | 1985 |
| B B Timber Limited | Cheltenham | 1998 |
| B Bush & Sons Limited | Boston | 2010 |
| B C Amos & SON Limited | Hereford | 2011 |
| B C Farms Ltd | Holywell | 2025 |
| B Campbell Fish Ltd | Newry | 2011 |
| B D & J H Ponsonby Limited | Buxton | 2003 |
| B Dawe Contracting Limited | Southampton | 2002 |
| B Douglas Ltd | Dalkeith | 2024 |
| B E Baker and Sons Limited | Cwmbran | 2005 |
| B Edwards Tree Services Ltd | Huddersfield | 2026 |
| B Edworthy Contracting Ltd | Tiverton | 2021 |
| B Elliott Farming Ltd | Huddersfield | 2013 |
| B F Blezard Limited | Preston | 2017 |
| B F Dairy Farm Limited | Glasgow | 2021 |
| B Finney & Sons Contracting & Agriculture Ltd | Skegness | 2025 |
| B G Sports Horses Limited | Worcester | 2020 |
| B H a Trees Ltd | Northampton | 2008 |
| B H Grain & Storage Ltd | Ipswich | 2025 |
| B H Stretton Limited | Sturminster Newton | 2011 |
| B Hughson Ltd | Shetland | 2017 |
| B J & S Wallis Limited | Abingdon | 1988 |
| B J Archer Farming Limited | Burton Upon Trent | 2014 |
| B J B Farming Limited | Sutton Coldfield | 1998 |
| B J Goose Digger Hire Limited | Great Yarmouth | 2017 |
| B J Kelso Limited | Maghera | 2012 |
| B J Lambeth Ltd | Grange-Over-Sands | 2019 |
| B J Mould Limited | Stafford | 2005 |
| B J Wright Limited | Norfolk | 2003 |
| B K Fishing Co Limited | Bridlington | 2018 |
| B K Hutchinson Limited | Lydney | 2017 |
| B L Foxwell Limited | Taunton | 2003 |
| B L Moulds & SON Limited | Gainsborough | 2012 |
| B Lears (Woodshavings) Ltd | Wigan | 2005 |
| B M Arboriculture Ltd | South Croydon | 2017 |
| B M Boothman Agronomy Limited | Malton | 2024 |
| B M Coombes & Sons Limited | Taunton | 2010 |
| B M Equestrian Limited | Chelmsford | 2023 |
| B M Perrins Livestock Limited | Redditch | 2012 |
| B M Williamson Ltd | Shetland | 2023 |
| B Mckenna & Sons Ltd | Dungannon | 2015 |
| B Norquoy Ltd | Birsay | 2015 |
| B Powell Forestry Limited | Kington | 2010 |
| B Q Farms Limited | Selkirk | 1977 |
| B R Brooks and SON Limited | Faversham | 2016 |
| B R Gooderham Agricultural Services Ltd | Bungay | 2015 |
| B R Irvine Ltd | Shetland | 2015 |
| B R L Engineering Ltd | Shetland | 2011 |
| B R Nicholls Ltd | Newquay | 2026 |
| B R Warner Services Limited | Manchester | 2017 |
| B Ridland Ltd | Evie | 2012 |
| B S Sheppard & Granddaughters Nutrition Ltd | London | 1999 |
| B Tomlins Ltd | Newtown | 2024 |
| B Tomlinson & SON Limited | Pudsey | 2014 |
| B W Langley & SON Ltd | King'S Lynn | 2015 |
| B W Upton & Sons Limited | Hereford | 2011 |
| B Wood Limited | Preston | 2004 |
| B&A Brownbridge Ltd | Goole | 2021 |
| B&B Farming Limited | Carmarthen | 2025 |
| B&Bmh Ltd | Doncaster | 2005 |
| B&C Sport Horses & Ponies Ltd | Glasgow | 2025 |
| B&K Enterprises Ltd | Stockton-On-Tees | 2011 |
| B&M Crick and Sons Limited | Ipswich | 2009 |
| B&M Farms Ltd | Newry | 2018 |
| B. & J. Farms Limited | Sheffield | 1983 |
| B. B. B. Farms Limited | Braintree | 1962 |
| B. Joyce Tree Services Ltd | Lilley | 2023 |
| B. Plumley Limited | Colchester | 1954 |
| B. R. & J. R. Nicolson Limited | Mossbank | 2024 |
| B. RAE Farming Ltd | Kelso | 2015 |
| B. Richards Tree Services Ltd | Bromsgrove | 2022 |
| B. T. Produce Ltd | Bridlington | 2004 |
| B. Templeton Limited | Glasgow | 2006 |
| B. Webster and Sons (Eastrington) Limited | Goole | 1978 |
| B.A. and C. Pearson Limited | Stockton-On-Tees | 1992 |
| B.A. Yeowart Holdings Limited | Tunbridge Wells | 1956 |
| B.A.Herd & SON Limited | Peterborough | 2015 |
| B.B. Farms Limited | Driffield | 1984 |
| B.Buckingham and Sons Limited | Witney | 1971 |
| B.C.A. Landbase Limited | Berkshire | 1994 |
| B.C.Mitchams Farms(Burwell)Limited | Burwell | 1965 |
| B.C.S. Agriculture Limited | Cambridge | 1992 |
| B.D. Supplies Limited | Perth | 2000 |
| B.E Contracting Services Ltd | London | 2021 |
| B.English & SON Limited | Ipswich | 1962 |
| B.G. Sampson (Farms) Limited | Tadcaster | 1982 |
| B.H.L Fishing Ltd | Shetland | 2026 |
| B.I.G Jumper Ltd | Oldham | 2024 |
| B.I.G Rider Ltd | Oldham | 2024 |