| JC Contracts Ltd | Dungannon | 2025 |
| JC Donald (Farms) Limited | Banbridge | 2020 |
| JC Donald Ltd | Banbridge | 2018 |
| JC Equine Services Ltd | Pontypridd | 2025 |
| JC Farm Services Ltd | Bradford | 2024 |
| JC Farming & SON Ltd | Caersws | 2024 |
| JC Farming Ltd | Cardiff | 2016 |
| JC Fishing Ltd | Scarborough | 2018 |
| JC Forestry Limited | Huddersfield | 2011 |
| JC Forestry Services Ltd | Wadhurst | 2025 |
| JC Land Based Industries Ltd | Preston | 2026 |
| JC Poultry Limited | York | 2019 |
| JC Tate Trading Limited | Northampton | 2022 |
| JC Tree and Garden Care Ltd. | Welshpool | 2024 |
| JC Utility ARB Limited | Droitwich | 2025 |
| JCA Agricultural Services Limited | Immingham | 2021 |
| JCB Farms Limited | Staffordshire | 1964 |
| JCB Fishing Ltd | Fraserburgh | 2014 |
| JCB Shellfish Limited | Swarthmoor | 2023 |
| JCC Farms Limited | Grantham | 2020 |
| JCC Incorporated Ltd | Crewe | 2024 |
| JCC Technologies Limited | Hereford | 2021 |
| JCM Agriculture and Leisure Ltd | Billingham | 2022 |
| Jcmarine Ltd | Lowestoft | 2026 |
| JCR Services (Lincs) Ltd | Scunthorpe | 2015 |
| JCS Autocare Limited | Peebles | 2025 |
| JD & DV Roberts Ltd | Denbigh | 2014 |
| JD & M Capstick Ltd | Millom | 2014 |
| JD & YM Pineo and Partners Ltd | Yeovil | 2021 |
| JD ARB Ltd | Kilmarnock | 2025 |
| JD Falconry Ltd | Watchet | 2024 |
| JD Farms Ltd | Belfast | 2009 |
| JD Farriers Ltd | Southend-On-Sea | 2025 |
| JD Forestry Consulting Ltd | Lockerbie | 2024 |
| JD Forestry Limited | Batley | 2019 |
| JD Graham Ltd | Ballymena | 2014 |
| JD Johnson Limited | Lincolnshire | 2004 |
| JD Livestock Ltd | Bridlington | 2023 |
| JD Outdoor Solutions Ltd | North Shields | 2026 |
| JD Plant Nursery Ltd | Norwich | 2025 |
| JD Tree Services & Countryside Management Ltd | Diss | 2022 |
| JD Tree Services Ltd | Shrewsbury | 2014 |
| JDA Grounds Maintenance Ltd | Kingsbury | 2020 |
| JDA Grounds Maintenance Services Ltd | Tamworth | 2022 |
| JDA Sales Limited | Dunstable | 2014 |
| JDB Farming Limited | Derby | 2019 |
| JDC Contracting Limited | Seascale | 2021 |
| JDH Farms Ltd | Royston | 1999 |
| JDM Ponds Ltd | Ravenshead | 2012 |
| JDM Woodland Management Limited | Crieff | 2017 |
| JDO Projects Limited | Axbridge | 2024 |
| JDR Farms Ltd. | Plymouth | 2012 |
| JDR Skid Steer Services Ltd | Alnwick | 2020 |
| JDS Agri Contracts Limited | Downpatrick | 2012 |
| Jdwtree&Land Ltd | Southampton | 2019 |
| JE & AC Hughes CYF | Carmarthen | 2017 |
| JE & SA Gardener Limited | Bideford | 2025 |
| JE Automation & Control Limited | Manchester | 2007 |
| JE Quick Limited | Taunton | 2024 |
| JE Sports Horses Limited | Retford | 2024 |
| Jeagor Leisure Ltd | Cromer | 2023 |
| Jeal Engineering Ltd | London | 2023 |
| Jealotts Hill Community Landshare CIC | Bracknell | 2023 |
| Jean Dyer Limited | Bristol | 2015 |
| Jean Lion & Company Limited | Dereham | 2015 |
| Jeavons Bros. Limited | Stoulton | 1961 |
| JED Forest Fallen Stock Co Ltd | Hawick | 2019 |
| Jedd O'Keeffe Racing Ltd | Leyburn | 2015 |
| Jeff Boocock Livestock Limited | York | 2025 |
| Jeff Royle Limited | Boston | 2007 |
| Jefff Ltd | Sutton Coldfield | 2021 |
| Jeffrey Contracting Limited | Malton | 2017 |
| Jeffries Farm Ltd | Rugby | 2015 |
| Jehangiri Polo Limited | Maidenhead | 2024 |
| JEK Farm Ltd | Llandeilo | 2013 |
| Jekka's Limited | Bristol | 2022 |
| Jelley Farming Ltd | Epsom | 2014 |
| Jellis & Jellis Limited | Southampton | 2023 |
| Jelly Farming Limited | Salisbury | 2021 |
| JEM Fishing Limited | Aberdeenshire | 2007 |
| Jemed Ltd | Newark | 2025 |
| Jemm Contracting Ltd | Hereford | 2002 |
| Jemm Services Limited | Grimsby | 2023 |
| JEN Gordon Equine Services Ltd | Kineton | 2025 |
| Jenant Limited | Sheffield | 2024 |
| Jencucco Ltd | Helston | 2024 |
| Jenkin Cragg Farms | Kendal | 2013 |
| Jenkins Agri Limited | Aberystwyth | 2026 |
| Jenkins and Rees CYF | Ceredigion | 2006 |
| Jenkins Bros Partnership Limited | Manchester | 2015 |
| Jenkins Brothers (Essex) Limited | Saffron Walden | 1995 |
| Jenkins Farm Agri Limited | Fareham | 2025 |
| Jenkins Plant Limited | London | 2013 |
| Jenkins Rhosfach Limited | Clynderwen | 2025 |
| Jenkins TY HEN Limited | Cardigan | 2005 |
| Jenkinsons Game Farm Ltd | Poulton-Le-Fylde | 2022 |
| Jenks Oxford Limited | Banbury | 2003 |
| Jennie and Co Pet Care Limited | Edinburgh | 2026 |
| Jennie Candlish Racing Limited | Leek | 2006 |
| Jennie Green Acres Ltd | Alton | 2020 |