| Graylings Farm Limited | Harrogate | 2025 |
| Grays Agricultural Ltd | Gwalchmai | 2009 |
| Grays Farms Limited | Colchester | 1955 |
| Grays Kennels Limited | Carlisle | 2012 |
| Grays Livestock Ltd | Beverley | 2019 |
| Grayshott Farm Limited | Ripley | 1957 |
| Graysons Farm Ltd | Simonswood | 2025 |
| Grayston Agricultural Services Limited | Stamford | 2014 |
| Grazecore Ltd | Cheshire | 2026 |
| Grazers Limited | Penrith | 2006 |
| Grazing Amazing Limited | Exeter | 2024 |
| Grazing for Nature Ltd | Hull | 2021 |
| Grazing Ground Farms Limited | Norwich | 2024 |
| Grazing Management Ltd | Lydney | 2021 |
| Grazing Ventures Limited | Carlisle | 2013 |
| Great Abington Produce Limited | Ongar | 2008 |
| Great Bradley (Withypool) Limited | London | 1985 |
| Great Bradley Farms Company | Suffolk | 1964 |
| Great Bromley Free Range Eggs Limited | | 2007 |
| Great Budworth Stud Ltd | Northwich | 2021 |
| Great Cheveney Farm Limited | Sevenoaks | 2003 |
| Great Cotton Farm Ltd | Dittisham | 2018 |
| Great Cowbridge Grange Farm Limited | Billericay | 1961 |
| Great Easton Trading Limited | London | 2015 |
| Great Frampton Farm Ltd | Llantwit Major | 2023 |
| Great Glen Charcuterie Ltd. | Spean Bridge | 2002 |
| Great Gransden Farms Limited | Sandy | 1968 |
| Great Green Wall (Sahel) Limited | London | 2022 |
| Great Grove Poultry Ltd | Norwich | 2014 |
| Great Hookley Farm Limited | Godalming | 2003 |
| Great Horses (Lanarkshire) CIC | Strathaven | 2021 |
| Great Lodge Farms Limited | Framlingham | 1963 |
| Great Longstone Agricultural Limited | Bakewell | 1996 |
| Great Loxhill Vineyard Ltd | Exmouth | 2022 |
| Great Meadow END Farm Limited | Halstead | 2005 |
| Great Melton Farms Limited | Norwich | 1968 |
| Great Ness Poultry Limited | Shrewsbury | 2010 |
| Great Northern Ventures Limited | Omagh | 2020 |
| Great Oak Trees Ltd | Heywood | 2025 |
| Great Oakley Farms Limited | Corby | 1991 |
| Great Oaks Tree Services Ltd | Preston | 2018 |
| Great Old HAY Winery Limited | Crawley | 2024 |
| Great Path Ltd | Harrow | 2020 |
| Great Pitton Farms Ltd | Swansea | 2022 |
| Great Porton Agricultural Limited | Newport | 2017 |
| Great Stockings Limited | Eastbourne | 2025 |
| Great TEW Grain Processing Limited | Chipping Norton | 2008 |
| Great Trethew Togetherness CIC | Liskeard | 2023 |
| Great Trodgers Farm Limited | Lewes | 2018 |
| Great Wheatley Farm Limited | Rochford | 2019 |
| Greatcentre Limited | Carnforth | 1991 |
| Greater Manchester Business Services Ltd | Bolton | 2012 |
| Greater Manchester Lost Dog Search & Rescue Capture Team C.I.C. | Bolton | 2022 |
| Greatips Limited | Falmouth | 1965 |
| Greatmoor Farm Contracting Ltd | Bracknell | 2014 |
| Greatwood Farms Limited | Reading | 1985 |
| Greave House Farm Trust | Sheffield | 2009 |
| Greaves Contractors Limited | Carlisle | 2010 |
| Greaves Tree Services Ltd | Barrow-In-Furness | 2014 |
| Greeen Horizon Limited | Manchester | 2024 |
| Green 4 Farming Limited | Derby | 2017 |
| Green Acre Dairy Limited | Carmarthen | 2024 |
| Green Acre Poultry Consultancy Limited | Craigavon | 2025 |
| Green Acre Salads Limited | Hoddesdon | 2016 |
| Green Acres Livery Yard Limited | Towcester | 2022 |
| Green Acres Services Ltd | London | 2025 |
| Green Agricultural Group Limited | Henfield | 2017 |
| Green Agricultural Services Ltd | Cottingham | 2021 |
| Green and Glory Garden Community Interest Company | Diss | 2023 |
| Green Aspect Garden Services Ltd | Lisburn | 2024 |
| Green Aspirations Scotland CIC | Stirling | 2013 |
| Green Associates Global Ltd | Harrow | 2024 |
| Green Barn Farm Ltd | Hambleton | 2025 |
| Green Beare Ltd | Keston | 2021 |
| Green BEE Agresearch Limited | Colchester | 2026 |
| Green BIO Farm Limited | London | 2021 |
| Green BIO Tech Ltd | London | 2024 |
| Green Blade Services Limited | Derby | 2024 |
| Green Blades Engineering Limited | Alcester | 2016 |
| Green Canopy Tree Specialists Limited | Huddersfield | 2003 |
| Green Care at Norton CIC | Letchworth Garden City | 2019 |
| Green Clear Ltd | Hereford | 2003 |
| Green Commerce Limited | Barnard Castle | 2003 |
| Green Coordinate Ltd | Spalding | 2022 |
| Green Countryside Ltd | Salisbury | 2026 |
| Green Crown Arborists Ltd | Dover | 2026 |
| Green Development Group Limited | Leamington Spa | 2022 |
| Green Diamond International Ltd | Epsom | 2020 |
| Green Earth Africa Limited | London | 2021 |
| Green Energy Alliance Limited | London | 2020 |
| Green Energy Saving Solutions Limited | Birmingham | 2019 |
| Green Environmental Management Ltd | Ashford | 2025 |
| Green Environmental Solutions Ltd | Port Talbot | 2012 |
| Green Equine Ltd | Congleton | 2026 |
| Green Farm Corporation Ltd | Bridgend | 2023 |
| Green Farm Grafton Ltd | Wantage | 2021 |
| Green Farm Seeds Limited | Gloucestershire | 2004 |
| Green Farming Limited | Scarborough | 1952 |
| Green Farms (Worcestershire) Limited | Nr Redditch | 1991 |
| Green Fern Farms Ltd | Dungannon | 2025 |