| Maltas Farms (Scotland) Limited | Hull | 2014 |
| Maltas Farms Limited | Hull | 1964 |
| Maltmas Farms Ltd | King'S Lynn | 2024 |
| Maltwood Hatcheries Ltd | Saffron Walden | 2022 |
| Malvern Hills Cabins Limited | Nr Malvern | 2024 |
| Malvern Plotters and Woodlanders CIC | Malvern | 2026 |
| Mama Africa Agricultural and Livestock Group COM Ltd | Glasgow | 2025 |
| Mambury Farm Limited | Bideford | 2006 |
| Mamex Farms Limited | Birmingham | 2004 |
| Mamlakato Chaye Ltd | London | 2025 |
| Mamut Farm Cleaning Ltd | Hereford | 2025 |
| MAN Coed VM Limited | Manchester | 2015 |
| MAN of Ross Limited | Ross-On-Wye | 1993 |
| MAN Pets Living Ltd | Manchester | 2024 |
| Mana KAU Farming Limited | Carlisle | 2022 |
| Managed Acres Ltd | Bordon | 2011 |
| Management Contract Services Limited | Haslemere | 2008 |
| Manaton Meadows Ltd | Newquay | 2026 |
| Manby Farms Limited | North East Lincolnshire | 1977 |
| Manchester Anglers' Association Limited | Carnforth | 2022 |
| Manchester Angling Club Ltd | Oldham | 2025 |
| Manchester ARB Ltd | Manchester | 2024 |
| Manchester Boarding Kennels Ltd | Manchester | 2023 |
| Manchester Boarding Kennels, Urmston Ltd | Manchester | 2025 |
| Manchester Equestrian Ltd | St. Asaph | 2026 |
| Manchester Fruit Tree Cooperative Limited | Stockport | 2022 |
| Manchester Honey Company Ltd | Sale | 2021 |
| Manchester Trees & Landscapes Ltd | Manchester | 2021 |
| Manchester Urban Diggers C.I.C. | Manchester | 2019 |
| Mandala Garden Project Ltd | Nairn | 2024 |
| Mandol Limited | Sayers Common | 1979 |
| Mandy B'S Ltd | Llanelli | 2025 |
| Mane Chance Sanctuary Limited | London | 2011 |
| Mane Star Equestrian Services Ltd | London | 2024 |
| Manford Farm Contractors Limited | Oswestry | 2021 |
| Manfruut Limited | Barking | 2019 |
| Manger Equine Ltd | Spalding | 2018 |
| Mango (Eco) Ltd | Derby | 2021 |
| Mangrove Conservation UK Ltd | Ashford | 2024 |
| Manley Farms Ltd | Ashford | 2021 |
| Mann Asset Holdings Limited | Glasgow | 2017 |
| Mann Farms Limited | Woodbridge | 1959 |
| Manna Bees & Honey Community Interest Company | Llanfyrnach | 2026 |
| Manna Pharma Ltd | Weston-Super-Mare | 2026 |
| Mannakin Ltd | Grantham | 2008 |
| Manners Farms Limited | Darlington | 1957 |
| Mano Carp Ltd | Grays | 2024 |
| Manok Limited | Thirsk | 2022 |
| Manor Consultancy Services Ltd | Peebles | 2018 |
| Manor Equestrian Livery Limited | Blandford Forum | 2026 |
| Manor Estates (Sibson) Limited | Peterborough | 1973 |
| Manor Falconry Limited | Tain | 2022 |
| Manor Farm & Storage Limited | Bedford | 2003 |
| Manor Farm (Alconbury) Limited | Huntingdon | 1980 |
| Manor Farm (Buckland) Limited | Faringdon | 1979 |
| Manor Farm (Greatham) Limited | Pulborough | 1965 |
| Manor Farm (Leicestershire) Limited | Lutterworth | 2024 |
| Manor Farm (Sixpenny Handley) Ltd | Salisbury | 2012 |
| Manor Farm AD Ltd | Leicester | 2016 |
| Manor Farm Biodiversity Limited | Aylesbury | 2024 |
| Manor Farm Bloodstock Ltd | Lincoln | 2023 |
| Manor Farm Contracting Limited | Bedford | 2013 |
| Manor Farm Dairy Limited | Dorchester | 2007 |
| Manor Farm Dairy Products Ltd | Nottingham | 2014 |
| Manor Farm Experiences Ltd | Tadworth | 2023 |
| Manor Farm Fishery Ltd | London | 2023 |
| Manor Farm Fold Limited | Oaker Thorpe | 2007 |
| Manor Farm Fruits Ltd | Tamworth | 2011 |
| Manor Farm Galton Limited | Dorchester | 2003 |
| Manor Farm Glasshouse Limited | Malvern | 2021 |
| Manor Farm Holdings (Dunham) Limited | Newark | 2025 |
| Manor Farm Limited | Worcester | 1955 |
| Manor Farm Livery Stables Limited | Norwich | 2006 |
| Manor Farm Machinery Limited | Goole | 2010 |
| Manor Farm Mendip Ltd | Huntingdon | 2022 |
| Manor Farm Moreton Pinkney (1986) Limited | Nr Daventry | 1986 |
| Manor Farm Partnership Limited | Bury St Edmunds | 2024 |
| Manor Farm Plant Hire Limited | Chippenham | 1994 |
| Manor Farm Poultry Limited | Stratford-Upon-Avon | 2018 |
| Manor Farm Rackheath Limited | Norwich | 2004 |
| Manor Farm Stables (Norfolk) Ltd | Norwich | 2019 |
| Manor Farm Thoresway Ltd | Lincoln | 2020 |
| Manor Farm Tree Services Limited | Grantham | 2018 |
| Manor Farm Whitsbury Limited | Fordingbridge | 2021 |
| Manor Farm Willingham Ltd | Ely | 2023 |
| Manor Farming Limited | Newark | 2003 |
| Manor Farms (Little Milton) Limited | Wimborne | 1993 |
| Manor Farms (North Witham) | Grantham | 1948 |
| Manor Farms (Steventon) Limited | Abingdon | 2005 |
| Manor Farms (Yelland) Limited | Devon | 1955 |
| Manor Forest Products Limited | Cookstown | 2021 |
| Manor Grange Stud Ltd | Beverley | 2026 |
| Manor Green Investments Limited | Enniskillen | 2014 |
| Manor Growers Limited | Craven Arms | 2009 |
| Manor Gundogs Limited | Bathgate | 2020 |
| Manor Home Farm Ltd | Northallerton | 2026 |
| Manor House Farm Equestrian Ltd | Warrington | 2025 |
| Manor House Partners Ltd | London | 2021 |
| Manor Meadows Limited | Woking | 2019 |
| Manor Organics Ltd | Royston | 2020 |