| King Industries Limited | Northampton | 2008 |
| King of Trees Ltd | Ipswich | 2022 |
| Kingan Forestry Limited | Dumfries | 2003 |
| Kingdom Agriculture and Landscaping Services Limited | Ashford | 2020 |
| Kingdom Arborist Ltd | London | 2024 |
| Kingdom Horse Community Interest Company | Bromsgrove | 2006 |
| Kingdom Produce Limited | Dundee | 2009 |
| Kinge Farm Services Ltd | Norwich | 2025 |
| Kingfisher Baits Limited | Louth | 2019 |
| Kingfisher Farm Services Ltd | Chippenham | 2013 |
| Kingfisher Mechanical Services Ltd | Leeds | 2015 |
| Kingfisher Red Limited | Winteringham | 2019 |
| Kingfisher Ridge Livery Ltd | Fareham | 2025 |
| Kingfisher Tree Services Ltd | Taunton | 2020 |
| Kingham Farms Ltd | Marlborough | 1998 |
| Kings Arboriculture Ltd | St Albans | 2024 |
| Kings Bloodstock (Sussex) Limited | Chichester | 2016 |
| Kings Court Services Limited | Monmouth | 2003 |
| Kings Farm Estate Ltd | Binsted | 1990 |
| Kings Farm Forestries Ltd | Eye | 2023 |
| Kings Farming Ltd | Hornchurch | 2021 |
| Kings Hill Equestrian Ltd | Haywards Heath | 2019 |
| Kings Horticulture Limited | Cheltenham | 1987 |
| Kings Lodge Ltd | Kidwelly | 2022 |
| Kings Lynn Angling Association Limited | King'S Lynn | 2013 |
| Kings Monster Carp Baits Ltd | Canterbury | 2023 |
| Kings Oak Farm Ltd | Mold | 2019 |
| Kings Ripton Farms Limited | Hitchin | 1987 |
| Kings Tree Services Ltd | Tetbury | 2014 |
| Kings Wood Tree Services Limited | Stone | 2024 |
| Kingsbeck Limited | By Biggar | 2015 |
| Kingsbridge Community Garden | Kingsbridge | 1999 |
| Kingsbridge Farming Services Limited | Stourbridge | 2019 |
| Kingsburgh Forest Trust | Portree | 2002 |
| Kingsbury Farms Limited | St. Albans | 1988 |
| Kingsclere Estates Limited | Basingstoke, | 1890 |
| Kingscliff Contracting Ltd | Exeter | 2015 |
| Kingsdale Farm Limited | Kirkcaldy | 1996 |
| Kingsdon Sporting Ltd | Colyton | 2023 |
| Kingsdown Farm Ltd | Salisbury | 2007 |
| Kingseat Highland Apiaries Limited | Aberdeen | 2025 |
| Kingseat Highland Forestry Limited | Aberdeen | 2026 |
| Kingsfield Equestrian Ltd | Linlithgow | 2026 |
| Kingshill Farming Company Ltd. | Somerton | 1999 |
| Kingslake Holidays Limited | High Wycombe | 2014 |
| Kingsland Farm Livery Ltd. | Milton Keynes | 2015 |
| Kingsland Farm Partnership Limited | Taunton | 1997 |
| Kingslee Farming Limited | Nantwich | 2024 |
| Kingsley Land Services Limited | Kingsley | 2004 |
| Kingsman Eco Farm Limited | Aberdeen | 2016 |
| Kingsman Farm Limited | Aberdeen | 2015 |
| Kingsman Ground Care Limited | Hastings | 2025 |
| Kingsmead Game Services Limited | Abingdon | 2020 |
| Kingsmill Farms Limited | Newry | 2005 |
| Kingsmoor Anglers Limited | Staines | 1966 |
| Kingsmoor Farm Limited | Evesham | 2013 |
| Kingsnoad Farmhouse Farm Ltd | Sittingbourne | 2024 |
| Kingsplay Farming Company Limited | Chippenham | 2003 |
| Kingston Companies Ltd | Chatteris | 2022 |
| Kingston Country Courtyard Limited | Wareham | 1976 |
| Kingston Farm Limited | Kingswear | 2020 |
| Kingston Hill Farm Ltd | Chippenham | 2010 |
| Kingston Hill Fields Limited | Brighton | 2005 |
| Kingstone Farms Limited | Harrogate | 2004 |
| Kingswinford Tree Surgery Ltd | Kingswinford | 2007 |
| Kingswood EC Signature Ltd | Albrighton, Wolverhampton | 2005 |
| Kingswood Equestrian Ltd | Aylesbury | 2025 |
| Kingswood Farm (Corfe Castle) Limited | Wareham | 2014 |
| Kingswood Farmers Limited | Kent | 2002 |
| Kingswood Home Boarding Limited | Coventry | 2026 |
| Kingswood Nutrition and Consultancy Limited | Ballynahinch | 2024 |
| Kingswood Shoot Limited | Bodmin | 2011 |
| Kingswood Stud Limited | Banstead | 2019 |
| Kingswoodbury Limited | Foxton | 1989 |
| Kington Farms Limited | Bristol | 2012 |
| Kington Langley Stud Ltd | Chippenham | 1998 |
| Kington-Agricultural Ltd | Newport | 2023 |
| Kingwell (Aubrey) Limited | London | 1949 |
| Kingwell Farm Contracting Limited | Timsbury | 2023 |
| Kingwell Holdings Limited | Braintree | 1995 |
| Kingwell Stud Limited | Bristol | 2023 |
| Kingwood Stud Management Company Limited | Hungerford | 2010 |
| Kingwood Thoroughbreds Limited | Southampton | 2022 |
| Kininmonth Livestock Ltd | Peterhead | 2022 |
| Kinlocheil Sportings | Fort William | 1999 |
| Kinloss Farms Limited | Cupar | 1962 |
| Kinlough Limited | Banbridge | 2014 |
| Kinnaber Limited | Aboyne | 2000 |
| Kinnear Fishing Ltd. | Perth | 1996 |
| Kinneston Bloodstock Limited | Fife | 2006 |
| Kinsbrook Vineyards Limited | Horsham | 2018 |
| Kinston Davies Farming Ltd | Burton On Trent | 2011 |
| Kinswood Eggs Limited | Farnborough | 1971 |
| Kintail Hatchery Ltd. | Kyle | 2002 |
| Kintail Salmon Ltd | Kyle | 2016 |
| Kintbury Holt Ltd | Taunton | 2013 |
| Kinton Farm Storage Limited | Shrewsbury | 1998 |
| Kintone Limited | Cookstown | 2007 |
| Kintrockat Farm Limited | Brechin | 2023 |
| Kintyre Agricultural Society | Campbeltown | 2002 |