| Heritage Farm & Kitchen Ltd | Helston | 2026 |
| Heritage Farms Limited | Dorking | 1996 |
| Heritage Fruit Trees Limited | Glasgow | 2019 |
| Heritage Harvest Limited | High Wycombe | 2006 |
| Heritage HEN Huts Limited | Southampton | 2024 |
| Heritage Hunting Consultancy Limited | Banbury | 2026 |
| Heritage Livestock Co Ltd | Bradford | 2025 |
| Heritage PAW Canine Services Limited | Belfast | 2025 |
| Heritage Thoroughbreds Ltd | Marlborough | 2022 |
| Heritage Tree Services Limited | High Wycombe | 1989 |
| Heritage Tree Specialists Limited | King'S Lynn | 2013 |
| Heritage Trees Limited | Watford | 2014 |
| Heritage Wood Limited | Ashbourne | 2013 |
| Hermes Financial Consultancy Ltd | Tiverton | 2015 |
| Hermetia Proteins Ltd | Richmond | 2024 |
| Hermitage AI Ltd | Uxbridge | 1998 |
| Hermitage Farm Limited | Southampton | 1979 |
| Hermitage Woodlands Limited | Portsmouth | 2023 |
| Hermosa Ventures Holding Ltd | London | 2026 |
| Hermosa View Limited | Banff | 2019 |
| Herne Bay Aggregates Limited | Herne Bay | 2023 |
| Heron Farm Devon Ltd | Bridport | 2025 |
| Heron Farms Limited | Staines-Upon-Thames | 1965 |
| Heron Hall Farm Ltd | Brentwood | 2024 |
| Heron Meadow CIC | Diss | 2020 |
| Heron Stream Stud Ltd | Wickford | 2020 |
| Heron Ventures Ltd | Honiton | 2018 |
| Heronbrook Fishery Limited | Staffordshire | 2021 |
| Herongate Village Cattery Ltd | Billericay | 2021 |
| Herons Bonsai Limited | Lingfield | 1987 |
| Herons Farm Limited | Ongar | 1978 |
| Heros | Wantage | 2006 |
| Herpetological UK Limited | Leigh-On-Sea | 2008 |
| Herrador Malaga Ltd | Bishop Auckland | 2018 |
| Herring Farms Limited | Market Rasen | 2019 |
| Herringston Farms Ltd | Taunton | 2021 |
| Herringswell Liveries Ltd | Newmarket | 2023 |
| Herron's Tree Solutions Ltd | St. Ives | 2022 |
| Hershcoco Kennels Limited | Billericay | 2021 |
| Hertford Tree Care Ltd | Knebworth | 2025 |
| Hertfordshire Growers Limited | Milton Keynes | 2014 |
| Hertfordshire Organic Growers Limited | Milton Keynes | 1994 |
| Hertfordshire Trees Ltd | Langley | 2025 |
| Herts Beds & Bucks Farmers Limited | Watford | 1998 |
| Herts Horses Hydrotherapy Livery Ltd | Harpenden | 2024 |
| Herts Horses Livery Ltd | Harpenden | 2024 |
| Herts Tree Care Ltd | Ware | 2022 |
| HES (N.I) Ltd | Larne | 2025 |
| Hesket Demain Limited | Carlisle | 2009 |
| Hesket Kennels & Cattery Ltd | Carlisle | 2022 |
| Heslip Fishing Ltd | Kilkeel | 2015 |
| Hesmonds Stud Limited | Lewes | 2010 |
| Hesperidium Ltd | Derby | 2023 |
| Hesselden Bros. Limited | Pateley Bridge | 1958 |
| Hessleham Showdogs Limited | Hessle | 2023 |
| Hestercombe Bloodstock Limited | London | 2021 |
| Hestyngate Ltd | Moffat | 2025 |
| Hethel Farming Limited | Wymondham | 2010 |
| Hettie Harvell Fishing Limited | Scarborough | 2019 |
| Heugh Farm Limited | Newcastle Upon Tyne | 2022 |
| Heughhead Fisheries Limited | Arbroath | 2024 |
| Hevda Marine Ltd | Bixter | 2012 |
| Hever Countryside Services Limited | Edenbridge | 2022 |
| Hever Countryside Training Limited | Edenbridge | 2017 |
| Hever Farm Stud Ltd | Hever | 2024 |
| Hever Tortoise World Ltd | London | 2021 |
| Hevingham Farms Ltd | Norwich | 2014 |
| Heward’S Register Limited | Kirkwall | 2021 |
| Hewbourn Limited | Dover | 2003 |
| Hewingbere Bloodstock Ltd | Newmarket | 2011 |
| Hewins Cleaning Services Ltd | Knighton | 2020 |
| Hewison Farms Limited | Newbury | 1964 |
| Hewitt & Hayward Limited | Cuckfield, Haywards Heath | 2021 |
| Hewitt Farming Ltd | Carnwath | 2015 |
| Hewstown Farm Limited | Carlisle | 2020 |
| Hewton Farms Limited | Callington | 2012 |
| Hexa Overseas Ltd | London | 2024 |
| Hexa Services Limited | Lisburn | 1994 |
| Hexgreave Limited | Newark | 1996 |
| Hexham Auction Mart Company,Limited | Northumberland | 1901 |
| Hexis Plus Limited | Dartford | 2015 |
| HEY Farming Limited | York | 2009 |
| HEY Head Farm Limited | Burnley | 2010 |
| Heybetsy Ltd | Salisbury | 2021 |
| Heydour Farm Stud Limited | Grantham | 2020 |
| Heyes Galloway Cattle Limited | St Helens | 1987 |
| Heyford Grange Nurseries Limited | Northampton | 2020 |
| Heyford Hill Horticultural Ltd | Bicester | 2020 |
| Heygate Contracting Limited | Northampton | 2012 |
| Heygate Farms Swaffham Limited | Northampton | 1953 |
| Heynings Solis Limited | Gainsborough | 2024 |
| Heys Farms Limited | Peterborough | 2019 |
| Heysham House Ltd | Morecambe | 2019 |
| Heywood Farm Partners Ltd | Chulmleigh | 2012 |
| Heywood Plant Hire Co.Limited | Chesterfield | 1952 |
| Heywood Tree Services Ltd | Worsley Manchester | 2023 |
| Heywoof Ltd | Westbury | 2024 |
| HF Animal Rescue Center C.I.C. | Nottingham | 2026 |
| HFL Property Services Ltd | Dorking | 2022 |
| Hflogs Ltd | Wallingford | 2017 |