| Durno Limited | Turriff | 2005 |
| Durrant Diving and Engineering Services Ltd | Great Yarmouth | 2017 |
| Durrant Farming Ltd | Buxton | 2020 |
| Durrants Farm Masts Ltd | Ingatestone | 2021 |
| Durrants Trading Limited | Liverpool | 2016 |
| Durweston Farms Limited | Yeovil | 1976 |
| Dury Salmon Limited | Stirling | 1985 |
| Duskin Farm Limited | Nr Canterbury | 1964 |
| Dusky FR Ltd | Peterhead | 2019 |
| Dusty Roads Europe Ltd | Driffield | 2026 |
| Dutch Dressage Limited | Hadleigh | 2024 |
| Duthie Agri-Services Ltd | Forfar | 2025 |
| Duthie Enterprises Limited | Rosehearty | 2008 |
| Duthie Fishing Ltd. | Fraserburgh | 2013 |
| Duttons Agricultural Contractors Limited | Chester | 2014 |
| DV Live Animal Transport Limited | Reading | 2021 |
| DV Rennie Limited | Berwick-Upon-Tweed | 2017 |
| DVC Agroforestry Farm Ltd | Edinburgh | 2026 |
| DVC Investments Ltd | Edinburgh | 2018 |
| DVF Motors Ltd | Llanelli | 2023 |
| DW & DH Scott Limited | Eye | 2019 |
| DW and SE Richards Poultry Ltd | Caersws | 2024 |
| DW Country Works Ltd | Ilford | 2016 |
| DW ENG Ltd | Shetland | 2017 |
| DW Fisheries Group Limited | Exmouth | 2024 |
| DW Fisheries Limited | Exmouth | 2014 |
| DW Genetics Ltd | Stone | 2025 |
| DW Rail ARB Ltd | Wigan | 2024 |
| DWA Advisory and Consulting Ltd | Newmarket | 2016 |
| DWB Agricultural Services Limited | Ashbourne | 2016 |
| DWB Farming Ltd | Southport | 2018 |
| DWC Livestock Services Ltd | Tadcaster | 2026 |
| Dwce Ltd | Launceston | 2017 |
| DWD Multi-Management Ltd. | Margate | 2020 |
| DWG Contracting Ltd | Nantwich | 2026 |
| DWH Dack Limited | Bideford | 2024 |
| DWH Forestry Ltd | Coventry | 2024 |
| Dwik Ltd | Builth Wells | 2024 |
| Dwom Limited | York | 2021 |
| DWR Engineering Limited | Abergavenny | 2021 |
| DWR Fisheries & Haulage Limited | Montrose | 2023 |
| Dwrs Services Ltd | St. Albans | 2025 |
| Dwyryd Anglers Limited | Blaenau Ffestiniog | 1989 |
| DXT Climate Solutions Limited | London | 2023 |
| DY International Limited | Stratford-Upon-Avon | 2025 |
| Dyan Mill Farm Ltd | Dyan | 2026 |
| Dyas Farms (1988) Limited | Nr.Ramsgate, | 1987 |
| Dycol Limited | Beds | 1972 |
| Dycote Farms Limited | Lincoln | 1956 |
| Dyer Livestock Limited | Thetford | 2004 |
| Dyeus Enterprise Limited | Gravesend | 2017 |
| Dyfan Pendre Uchaf Ltd | Corwen | 2015 |
| Dyfed Fencing Services Ltd | Llandeilo | 2017 |
| Dyffryn Ceidrych Coed CYF | Llangadog | 2023 |
| Dyfi Dairy Ltd | Machynlleth | 2024 |
| Dykegatehead Limited | East Lothian | 2013 |
| Dykehead Dairies Limited | Carlisle | 2022 |
| Dykelands Limited | London | 2011 |
| Dykemoor Farm Ltd | March | 2002 |
| Dylan Evans & Co Ltd | Aberarth | 2013 |
| Dylan W Roberts Ltd | Ruthin | 2026 |
| Dynamic Dairy Farming Limited | Bristol | 2014 |
| Dynamic Dairying Limited | Yeovil | 2013 |
| Dynamic Dogs Limited | Gloucester | 2003 |
| Dynamic Farm Ltd | Glasgow | 2022 |
| Dynamic Housing Limited | Dorchester | 2006 |
| Dzatafia Ltd | London | 2018 |
| D’Oyleys Farm Ludgershall Limited | Aylesbury | 2025 |
| E & a G Stratton Limited | Marlborough | 2011 |
| E & E J Andrews Limited | Norwich | 1947 |
| E & E Logging Limited | Ashford | 2009 |
| E & G Game Limited | London | 2026 |
| E & G Jones CYF | Porthmadog | 2017 |
| E & H Neocleous Limited | Romford | 2023 |
| E & J Solutions Limited | Presteigne | 2007 |
| E & M Batchelor Limited | Andover | 2011 |
| E & P Thompson Limited | King'S Lynn | 2003 |
| E & S Burborough Limited | Reading | 1995 |
| E & S Mayman Limited | Uttoxeter | 2014 |
| E & S Scott Limited | Aberdeen | 2002 |
| E & T Farming Limited | Alnwick | 2017 |
| E a Grant Forestry Limited | Thurso | 2022 |
| E a Sherwen Limited | Seascale | 2014 |
| E a Tyson and Sons Ltd | Scarborough | 2026 |
| E Agri Ltd | Telford | 2025 |
| E Andrew Hughes Ltd | Malton | 2015 |
| E B Showing Limited | Waltham Cross | 2014 |
| E Buchanan Limited | Craigavon | 2012 |
| E C Drummond (Agriculture) Ltd | Ross On Wye | 1962 |
| E C Simpson Plant Hire Limited | West Sussex | 1997 |
| E Clayton & Sons Limited | Boston | 2007 |
| E Corbett Farming Ltd | Rothesay | 2023 |
| E D F Farming and Vermin Control Ltd | Stockbridge | 2024 |
| E Ewan Contractor Ltd | Stonehaven | 2023 |
| E F Veal Farming Ltd | King'S Lynn | 2017 |
| E G Banham & Sons Limited | Skegness | 2011 |
| E G Burton & Sons Ltd | Bishops Castle | 2010 |
| E G Butcher & Sons Ltd | Maidstone | 2023 |
| E G COX & Sons (Holdings) Limited | Crewkerne | 2012 |
| E G Farming Limited | Shetland | 2013 |