| J H Vaudrey & SON (Farms) Ltd | Eye | 2017 |
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| J Hagar Limited | Malton | 2012 |
| J Hanmer & Co Limited | Hereford | 2006 |
| J Hargreaves Ltd | Glossop | 2023 |
| J Harrison (Kirkbride) Limited | Wigton | 2007 |
| J Hart & SON Limited | Ware | 2013 |
| J Haywood Farms Limited | Grantham | 2000 |
| J I Wigley Limited | Mansfield | 2013 |
| J J & C a S Davies Limited | Cromer | 2006 |
| J J and B Treecare Limited | Chatham | 2008 |
| J J Brooks Limited | Banbury | 2004 |
| J J C & H E George Limited | Haverfordwest | 2005 |
| J J Davison & Sons Limited | Swadlincote | 2010 |
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| J J Livestock Solutions Limited | Usk | 2017 |
| J J MAC Farming Ltd | Bourne | 2017 |
| J J Megan (Farriers) Ltd | Lichfield | 2003 |
| J J Musson Limited | Hinckley | 2024 |
| J J Payne & SON Limited | Chippenham | 2017 |
| J J Phizacklea Limited | Wigton | 2018 |
| J J Stewart Land & Sea Services Ltd | Shetland | 2014 |
| J Johnson Fishing Ltd | Shetland | 2014 |
| J K Ashbrook Limited | Congleton | 2005 |
| J K Malcolm Limited | Hartlepool | 2023 |
| J K Rotties Ltd | Stourbridge | 2026 |
| J K Smith & Sons Ltd | Leamington Spa | 2026 |
| J K Tree Services Limited | Wells | 2021 |
| J Kidd Services Limited | Macclesfield | 2022 |
| J Kilpatricks Ltd | Magherafelt | 2019 |
| J Kirk Ltd | Wetherby | 2012 |
| J L Bryce Farms Limited | Reading | 2003 |
| J L Fisheries Limited | Deal | 2014 |
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| J L G Agri Limited | Moreton-In-Marsh | 2014 |
| J L Rose Ltd | Beaworthy | 2021 |
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| J Leman & Sons Limited | Kings Lynn | 2014 |
| J Lilley Limited | Ashford | 2023 |
| J Lyon Forestry & Groundworks Ltd | Melrose | 2023 |
| J M & a Robson Limited | Morpeth | 2019 |
| J M & V J Howard Limited | Huddersfield | 2004 |
| J M Becklake Limited | Bideford | 2004 |
| J M Game Birds Limited | Bungay | 2024 |
| J M Greensit and SON Limited | Bedale | 1961 |
| J M H Land Ltd | Manchester | 2023 |
| J M Harris Limited | Romford | 2022 |
| J M Hopley Farms Ltd | Rugeley | 2016 |
| J M Lennie & Co Limited | Orkney | 2003 |
| J M Richardson (Farming) Limited | Pontefract | 1962 |
| J M Shearer Limited | Lanark | 2015 |
| J M Sports Horses Ltd | Liverpool | 2025 |
| J M Stratton & Co Limited | Warminster | 2019 |
| J M Thomas Farms Ltd | Shrewsbury | 2017 |
| J M W Projects Limited | Northwich | 2011 |
| J Maguire Limited | Holyhead | 2025 |
| J Manson Shellfish Ltd | Glasgow | 2020 |
| J MAW & SON (Farm) Limited | Brigg | 2022 |
| J Mcavoy & SON Limited | Cumbria | 2003 |
| J Mccreesh Farming Limited | Newry | 2020 |
| J Melton Tree Surgery Limited | Grimsby | 2002 |
| J Mitchell Fishing Limited | Newton Stewart | 2013 |
| J Moor Farming Limited | Houghton Le Spring | 2011 |
| J Morgan Fishing Ltd | Peterhead | 2022 |
| J Morrell & Co Limited | Doncaster | 2008 |
| J N Franklin & SON Limited | Templecombe | 2012 |
| J N Hallam Engineering Limited | Nottingham | 2002 |
| J N I Agricultural Limited | Turriff | 2015 |
| J N Treescape Ltd | Basingstoke | 2017 |
| J N Webster Ltd | Tarleton Near Preston | 2003 |
| J Nellis Farms Ltd | York | 2014 |
| J Norman Forestry Ltd | Melrose | 2021 |
| J Nudds Shellfish Ltd | Norfolk | 2005 |
| J O Jones CYF | Porthmadog | 2011 |
| J O Nightingale Limited | Cornwall | 2008 |
| J O Smith Ltd | Ashbourne | 2003 |
| J O'Neill Fishing Ltd. | Macduff | 2008 |
| J P and M Hambleton Limited | Burton-On-Trent | 2016 |
| J P Farming Limited | Louth | 2017 |
| J P Fishing Ltd | Fraserburgh | 2015 |
| J P Holliday | Penrith | 2007 |
| J P Reid 75 Limited | Shetland | 2014 |
| J P Stansfield Limited | Todmorden | 2010 |
| J P Stern Ltd | Maidstone | 2013 |
| J Park Services Ltd | Fleetwood | 2026 |
| J Parrish and SON Limited | Shefford | 2014 |
| J Paterson Equine Dental Services Limited | Warrington | 2021 |
| J Pitman Limited | Battle | 2015 |
| J Precision Hooks Ltd | Mansfield | 2017 |
| J Purvis Contracting Ltd | Stanley | 2024 |
| J R & C Barrett Limited | Lugwardine | 2023 |
| J R & MRS C E Jones Limited | Shrewsbury | 1987 |
| J R & R Prescott Limited | Ormskirk | 2011 |
| J R Angell Farming Ltd | Calne | 2009 |
| J R Bodman Limited | Salisbury | 2005 |
| J R Crayston & Sons Limited | Braintree | 2008 |
| J R D Tree Services Ltd | Horncastle | 2016 |
| J R Drinkall (Livestock) Limited | Tarporley | 2011 |