| Laddingford Farm Limited | Westerham | 2006 |
| Ladkarn Holdings Limited | Hertford Heath | 1977 |
| Lady Acorn Limited | Tamworth | 2008 |
| Lady and the Scruff Limited | Shepperton | 2024 |
| Lady Hamilton Helford Ltd | Helston | 2021 |
| Lady House Farm Limited | Salop | 1970 |
| Lady Patricia Ltd | Folkestone | 2012 |
| Ladybird Nurseries (Snape) Limited | Saxmundham | 2016 |
| Ladybug Pest Control Limited | Lydney | 2018 |
| Ladygreen Fisheries Limited | Liverpool | 2002 |
| Ladykirk Estates Limited | Kelso | 1930 |
| Ladymoor Woodland Ltd | Stoke-On-Trent | 2020 |
| Ladysford Limited | Fraserburgh | 2024 |
| Ladyshore Grange Ltd | Bolton | 2023 |
| Ladyswell Kennels Limited | Barnstaple | 2017 |
| Ladyton Ltd | Galston | 2021 |
| Ladyton Manor Ltd | Galston | 2021 |
| Ladyview Kennels Limited | Stoke-On-Trent | 2026 |
| Ladywash Farm Ltd | Hope Valley | 2021 |
| Laga Farms Limited | Orkney | 2002 |
| Lagan Farms (Dorset) Limited | Gillingham | 1996 |
| Laggan Properties Limited | Belfast | 1995 |
| Lagniappe Canine Services Ltd | Barnsley | 2026 |
| Lagquip Ltd | Magherafelt | 2024 |
| Laid Back Country Pursuits Limited | Kingswood Aylesbury | 2003 |
| Laid in Britain Limited | Bridgwater | 2005 |
| Laid in Wales Ltd | Llandrindod Wells | 2025 |
| Laid Woodlands and Lochans Ltd. | Lairg | 1997 |
| Laide & Aultbea Community Woodland | Achnasheen | 2003 |
| Laighparks Nurseries Ltd. | Glasgow | 2004 |
| Laight Farm Limited | Stirling | 2014 |
| Laird BEE Farms Ltd | Lochgilphead | 2024 |
| Laird Erskine & Company Limited | Prestwick | 1975 |
| Laird Estates Limited | Angus | 1998 |
| Laird Farms Ltd | Fraserburgh | 2025 |
| Laity Agricultural Ltd | Penzance | 2026 |
| Lake 2000 Limited | West Glamorgan | 2000 |
| Lake Carpathia Ltd | Romsey | 2015 |
| Lake District Livestock Limited | Cockermouth | 2013 |
| Lake District Protection Project CIC | Nottingham | 2023 |
| Lake Escomb Limited | East Sussex | 2007 |
| Lake of Menteith Fisheries Limited (the) | Stirling | 1966 |
| Lake Play Limited | St Columb | 2017 |
| Lake Solutions (East Anglia) Limited | Diss | 2016 |
| Lake View Events Ltd | Walton-On-Thames | 2009 |
| Lakehead Dairying | Closeburn | 2018 |
| Lakeland Cairndow Limited | Glasgow | 1999 |
| Lakeland Farm Ltd | Chorley | 2019 |
| Lakeland Livestock Limited | Cockermouth | 2013 |
| Lakeland Marine Ltd | Windermere | 2015 |
| Lakeland Pony Treks Ltd | Ulverston | 2016 |
| Lakemount Farms Limited | Omagh | 2012 |
| Lakemount Free Range Eggs Ltd | Dromore | 2023 |
| Lakemount Holdings Ltd | Omagh | 2023 |
| Laker Agricultural Services Ltd | West Malling | 2024 |
| Lakes and Dales Countryside and Landscaping Services Ltd | Ulverston | 2023 |
| Lakes View Farm Herefords Limited | Preston, | 2019 |
| Lakeside Alpacas Ltd | Exeter | 2021 |
| Lakeside BEE Services Ltd | Frome | 2023 |
| Lakeside Farm Ltd | Stocksfield | 2020 |
| Lakeside Farm Services Ltd | Penkridge | 2021 |
| Lakeside Fisheries Ltd | Uxbridge | 2022 |
| Lakeside Herdwicks Limited | Pontypridd | 2025 |
| Lakeside Nursery Limited | Palmers Green | 2011 |
| Lakeside Poultry Limited | Newark | 2011 |
| Lakeside Stables Limited | Bishop Auckland | 2015 |
| Lakeside Stud Ltd | Windsor | 2024 |
| Lakeside Tree Care Ltd | Marple | 2021 |
| Lakeview Contracts Ltd | Trillick | 2022 |
| Lakeview Farm | Omagh | 2025 |
| Lakeview Farm Meats Limited | Crumlin | 2010 |
| Lakeview Poultry Ltd | Aughnacloy | 2017 |
| Lakewest Limited | Ceredigion | 1998 |
| Laksa Limited | Morpeth | 1993 |
| Laksahena Group PVT Ltd | Cardiff | 2025 |
| Lalei Albarakah Holding Limited | Ruislip, | 2025 |
| Lalk Limited | Stirling | 2022 |
| Lallemand Animal Nutrition UK Limited | Malvern Link | 1994 |
| LAM Food & Fibre Limited | Ely | 2021 |
| LAM Forestry Limited | Edinburgh | 2015 |
| Lamb Close Farm Limited | Nottingham | 2025 |
| Lamberhurst Vineyard Ltd | Lamberhurst, Kent | 2021 |
| Lamberts Estates Limited | Bourne | 1945 |
| Lamboro Farm Limited | Haverfordwest | 1999 |
| Lambourne END Ltd | Romford | 2004 |
| Lambretta Concessionaires Ltd | Shrewsbury | 2017 |
| Lambrook Farming Limited | South Petherton | 2025 |
| Lambs END Ltd | Leamington Spa | 2014 |
| Lambshield Farm Limited | | 2005 |
| Lamerwood Farm Limited | London | 2021 |
| Lamerwood Farm Wheathampstead Limited | London | 2021 |
| Lamesley Farm Ltd | Newcastle Upon Tyne | 2023 |
| Lamington Livestock Limited | Biggar | 2021 |
| Lamolls (Agriculture) Limited | Hatfield | 2025 |
| Lampeter Tree Services Limited | Lampeter | 2001 |
| Lampits Farms Limited | Eye | 2005 |
| Lamport Farms Limited | | 1976 |
| Lamyman Farming Company Limited | Skegness | 2011 |
| Lamyman Worlaby Farms Unlimited | Lincs | 1956 |
| LAN Farm Ltd | Carmarthen | 2019 |