| Hunting Travel Club Limited | Duns | 2020 |
| Huntingfield Limited | Royston | 2019 |
| Huntinglands Limited | Abingdon | 1991 |
| Huntington Hall Farms Limited | Chester | 2019 |
| Huntlaw Ltd | Oxnam Nr Jedburgh | 2018 |
| Huntley Agriculture Limited | Salisbury | 2011 |
| Huntly Falconry Ltd | Buckie | 2023 |
| Hunton Farms Limited | Thirsk | 2012 |
| Hunton Legg (Running Gear) Limited | Norwich | 1989 |
| Hunton Tree Services Limited | Nottingham | 2022 |
| Huntree Fencing Limited | Bedfordshire | 1983 |
| Hunts Agricultural Services Ltd | Retford | 2017 |
| Hunts Farming Limited | Stapleford | 2005 |
| Hunts Greenworks Ltd | Coleford | 2026 |
| Hunts Hill Contracting Services Limited | Sturminster Newton | 2009 |
| Hunts Hill Limited | Todber | 2019 |
| Hunts Limited | St. Neots | 1997 |
| Hunts Pest and Wildlife Management Ltd | St Neots | 2013 |
| Huntsmans Dog and Cat Hotel Ltd | Worthing | 2017 |
| Hurbu Ltd | London | 2022 |
| Hurcott Services Limited | Nottingham | 2002 |
| Hurlands Farm Limited | London | 2014 |
| Hurley Fencing Limited | Worcester | 1965 |
| Hurley Hall Farms Limited | Warwickshire | 1962 |
| Hurleyford Farm Caravan Park Group Limited | Maidenhead | 2025 |
| Hurleyford Farm Caravan Park Limited | Maidenhead | 2025 |
| Hurleyford Farm Holdings Limited | Maidenhead | 2025 |
| Hurleyford Farm Limited | Maidenhead | 2001 |
| Hurlock Greyhounds Ltd | Leigh-On-Sea | 2024 |
| Hurman Enterprises Ltd. | Taunton | 1997 |
| Hurn Bros Ltd | Dereham | 2012 |
| Hurren Agronomy Limited | Halesworth | 2008 |
| Hursley Contractors Limited | Eastleigh | 2015 |
| Hurst Animal Health Ltd | Ashford | 2015 |
| Hurst Farms Limited | Uckfield | 2016 |
| Hurst Grange Equestrian Limited | Reading | 2024 |
| Hurst Grange Livery Limited | Reading | 2025 |
| Hurtwood Stables Limited | Old Wolverton | 2020 |
| Husabost Water Company Ltd | Isle Of Skye | 2020 |
| Husbands Support Services Limited | Hull | 2025 |
| Husk Farms Limited | Herne Bay | 2024 |
| Husphins Lane Equestrian Ltd | Newport | 2025 |
| Hussey Farms (Rugby) Limited | Hinckley | 1997 |
| Hussingtree Limited | Hussingtree, Worcester | 2002 |
| Hussite Limited | King'S Lynn | 1977 |
| Hutchinson Agrifoods Limited | Lydney | 2018 |
| Hutchinson Farming (Ponteland) Limited | Newcastle Upon Tyne | 2017 |
| Hutchinson Group Limited | Wisbech | 2003 |
| Hutchison Fishing Company Limited | Westray | 2022 |
| Huthwaite Agri Limited | Sheffield | 2026 |
| Hutson Farming Company Limited | Sleaford | 2001 |
| Hutton Hall Farms Limited | Richmond | 2011 |
| Hutton Wandesley Farms Company Limited | York | 1967 |
| Huttons Ambo Farms Limited | York | 1970 |
| HUW Eurig Jones CYF | Amlwch | 2012 |
| HUW Forestry Limited | Goole | 2017 |
| HUW James & Sons Limited | Fishguard | 2024 |
| HUW Phillips Limited | Crymych | 2003 |
| Huxbear Biofuels Ltd | Newton Abbot | 2012 |
| Huxhams Cross Community Orchard Ltd | Totnes | 2012 |
| Huyton Limited | London | 2025 |
| HW Atkinson & Sons Limited | Bridlington | 1997 |
| HW Dressage Limited | Exning | 2018 |
| HW Equestrian Ltd | Windsor | 2018 |
| HW Mason & Sons (Farming) Ltd | Bedford | 2020 |
| HW Mason & Sons (Holdings) Ltd | Bedford | 2020 |
| HW Polo Limited | Horley | 2018 |
| HW Trees Ltd | Aberystwyth | 2018 |
| HWG (Mosspark) Limited | Gateshead | 2021 |
| HY Microgreens Limited | Edgware | 2025 |
| Hy-Fly Game Farm Limited | Lytham St. Annes | 2017 |
| Hy-Fly Game Hatcheries Limited | Lancashire | 2000 |
| Hy-Gro Hydroponics Ltd | Glasgow | 2020 |
| Hy-Line UK Limited | Henley Road Outhill | 1995 |
| Hybrid Agronomy Ltd | Hythe | 2022 |
| Hyddy Limited | Gravesend | 2019 |
| Hyde International Agricultural Technology Co., Ltd. | Beckenham | 2026 |
| Hyde Park Stables Ltd | London | 2019 |
| Hydeaway Farm Limited | London | 2023 |
| Hydes Farm Limited | Sturminster Newton | 2025 |
| Hydons Flowers Community Interest Company | Surrey | 2021 |
| Hydra Square Limited | Coventry | 2025 |
| Hydre Ltd | Dickleburgh | 2019 |
| Hydro Wizard Ltd | Chichester | 2019 |
| Hydro-Fur-Apy Limited | Cambridge | 2017 |
| Hydroclay Limited | Macclesfield | 2018 |
| Hydrocoir UK Ltd | London | 2021 |
| Hydroculture CIC | Rotherham | 2025 |
| Hydrocut Limited | Colchester | 1959 |
| Hydrodaze Ltd | Nansledan | 2024 |
| Hydronomy Ltd | Birmingham | 2020 |
| Hydroponic Marketplace Ltd | Bury St. Edmunds | 2025 |
| Hydroponicsa Limited | Batley | 2024 |
| Hyfield Farming Limited | Scunthorpe | 2024 |
| Hyfield Stables Ltd | London | 2021 |
| Hygeon Ltd | London | 2023 |
| Hyland Fruits Limited | Somersham | 1978 |
| HYM Family Ltd | Bury St. Edmunds | 2024 |
| Hyndshillend Farm Limited | Biggar | 2000 |
| Hyperform Sport Horses Limited | Ashford | 2019 |