| J & L Farming Ltd | Market Drayton | 2025 |
| J & L Mackay Ltd | Lybster | 2015 |
| J & L Macpherson Ltd | Newchurch | 2014 |
| J & L POT Limited | Ashbourne | 2002 |
| J & L Spencer Ltd | Hebden Bridge | 2022 |
| J & L Winspear Ltd | Thirsk | 2020 |
| J & M Britton Ltd | Holsworthy | 2001 |
| J & M Dearness Limited | Sanday | 2011 |
| J & M Farming Limited | Stafford | 2026 |
| J & M Forbes Limited | Perthshire | 2006 |
| J & M Ground Maintenance Limited | Linlithgow | 2005 |
| J & M Leeming Limited | Clitheroe | 2009 |
| J & M Mcnee Limited | Bathgate | 2009 |
| J & P Farming Limited | Sandy | 2018 |
| J & P Farriers Limited | Hexham | 2022 |
| J & P O'Neill Limited | Wellington House | 2001 |
| J & P Routledge & SON Limited | Cumbria | 2006 |
| J & P Turner | Kington | 1961 |
| J & R Armstrong Farms Limited | Lincoln | 2003 |
| J & R Bell Limited | Knutsford | 2015 |
| J & R Bond Farm Ltd | Diss | 2021 |
| J & R Clappison Limited | Ottringham | 2003 |
| J & R Collingborn Ltd | Chippenham | 2007 |
| J & R Farming Ltd | Oxford | 2020 |
| J & R Hooper Farms Limited | Salisbury | 1954 |
| J & R Morley Limited | Bridlington | 2004 |
| J & R Rankin Limited | Paisley | 2021 |
| J & R Wood Limited | Gomersal | 2015 |
| J & R’S Agricultural Limited | Northampton | 2024 |
| J & S Broadwith Limited | Bedale | 2017 |
| J & S Campbell Contract Ltd. | Peterhead | 2006 |
| J & S Dairying Limited | Market Drayron | 2019 |
| J & S Farming Limited | Yeovil | 2016 |
| J & S Farms Trewidden Limited | Cornwall | 1999 |
| J & S Garrioch Limited | Aberdeenshire | 2022 |
| J & S Grant (Roskill) | Munlochy | 1978 |
| J & S Harrison Limited | Wigton | 2006 |
| J & S M Rowland & Sons Limited | Glastonbury | 2006 |
| J & S Oakley Limited | Hitchin | 2021 |
| J & S Winstanley Ltd | York | 2017 |
| J & T F Macfarlane Limited | Gordon | 1992 |
| J & V Casey and SON Limited | Lincoln | 2003 |
| J & W Cowan Limited | Wigtownshire | 2006 |
| J & W Davis Limited | Shepton Mallet | 2003 |
| J & W K Fisher Limited | Nottingham | 2011 |
| J & W Shuttleworth Ltd | Skipton | 2025 |
| J & W Tait Limited | Kirkwall | 1954 |
| J & W.E. Willets Ltd | Bewdley | 2010 |
| J & WJ Lamb Limited | Tayside | 2005 |
| J a & D M Glover & SON Limited | High Offley | 2011 |
| J a & M Boyes Limited | Darlington | 2010 |
| J a a Agri Ltd | London | 2025 |
| J a Agriculture Limited | Skipton | 2014 |
| J a and K Rowland Limited | Northumberland | 2006 |
| J a C Grierson Limited | Perth | 2006 |
| J a Cattle Ltd | Newry | 2020 |
| J a Dent & Sons Limited | Leyburn | 2011 |
| J a Feed Services Limited | Thame | 2020 |
| J a Fencing Ltd | Biggar | 2023 |
| J a FOX Ltd | Watford | 2017 |
| J a FRY Limited | Driffield | 2013 |
| J a Haworth Ltd | North Ferriby | 2017 |
| J a L R Limited | Chelmsford | 2023 |
| J a Poultry Limited | Armagh | 2018 |
| J a R Fishing Ltd. | Peterhead | 2011 |
| J a S Agricultural (UK) Limited | Ashbourne | 2005 |
| J a Selway Limited | Axbridge | 2008 |
| J a Stewart Tree Surgery Ltd | Bridport | 2023 |
| J a Watts Limited | Spalding | 2015 |
| J a Worley Limited | Maidstone | 1997 |
| J Alston & Sons Limited | Norwich | 1948 |
| J and a Agriculture Ltd | Bicester | 2023 |
| J and a Camp Limited | Exeter | 2022 |
| J and C Rayner Farms Limited | Coggeshall | 1960 |
| J and J Farming Ltd | Yeovil | 2016 |
| J and J Noutch Limited | Newark | 2011 |
| J and J Pattullo Limited | | 2003 |
| J and K Traquair Limited | Edinburgh | 2024 |
| J and R Anstey Limited | Worcester | 2015 |
| J and S Fishing Limited | Bideford | 2011 |
| J Anderson Fishing Ltd. | Lerwick | 2003 |
| J Ascroft & SON Limited | Preston | 2002 |
| J Ashby Tree Services Ltd | Matlock | 2018 |
| J B & E J Peile Limited | Penrith | 2013 |
| J B Farming Ltd | Bury St Edmunds | 2011 |
| J B Fishing Limited | Peterhead | 2003 |
| J B Fishing PHD Ltd | Peterhead | 2025 |
| J B Holliday & Sons Agriculture | Penrith | 2018 |
| J B Robinson and SON Limited | Spalding | 2012 |
| J B Treeworks Ltd | Enfield | 2015 |
| J B Turner Roses Limited | Gorefield | 2003 |
| J Barnett Produce Limited | Soham | 2019 |
| J Bell & SON Farming Limited | Tetbury | 2011 |
| J Bowling & SON Ltd | York | 2007 |
| J Brown Construction Agriculture Ltd | Chorley | 2014 |
| J Buchan Services Limited | Fraserburgh | 2023 |
| J Burr Contracting Limited | Lancaster | 2020 |
| J Burrow Contracting Ltd | Workington | 2026 |
| J Butterfield General Dealer Ltd | Barnard Castle | 2025 |
| J Byass & Sons Limited | Beverley | 2012 |