| R. M. Hobbs Limited | Wiltshire | 2005 |
| R. M. Holmes Limited | Taunton | 2021 |
| R. Marginson (Farmers) Limited | Beverley | 1977 |
| R. Marshall Farms Ltd | Tillicoultry | 2016 |
| R. Martin (Farms) Limited | Faversham | 1959 |
| R. Mcgowan Limited | Bishop'S Stortford | 1987 |
| R. O'Dell (Holdings) Limited | Castle Cary | 1995 |
| R. Oldershaw & Co. | Derby | 1964 |
| R. P. Marine Limited | Waterlooville | 2010 |
| R. P. Richardson (Gwent) Limited | 18 Gold Tops | 1971 |
| R. Pratt & Sons Limited | Diss | 1956 |
| R. Procter Farms Limited | Southminster | 1982 |
| R. Roberts & Sons Limited | Liverpool | 2018 |
| R. S. Agricultural Limited | Sheffield | 2024 |
| R. W. Ford Limited | Rugby | 1963 |
| R. Watts & Sons Limited | Slough | 2002 |
| R. Wray & Sons Limited | Lincoln | 2014 |
| R.& A.Bayston Limited | Brough | 1954 |
| R.A. and K.M. Garrett Limited | Northampton | 1984 |
| R.A. Baillie Ltd | Market Rasen | 1997 |
| R.A. Duckett and Company Limited | Somerset | 1958 |
| R.A. Gibson (Colesden) Limited | Bedfordshire | 1945 |
| R.A. Jelley (Farms) Limited | | 1975 |
| R.A. Latta (Farms) Limited | Huntingdon | 1977 |
| R.A. Rogers (Rossett) Limited | Wrexham | 1976 |
| R.A. Whitebread (Farms) Limited | Rochester | 2000 |
| R.A.B. Agri-Contracting Limited | Hinckley | 2010 |
| R.A.J. Spink (Marnham) Limited | Newark | 2000 |
| R.And J.Hollington Limited | Romford | 1959 |
| R.B Game Birds Ltd | Ilchester | 2026 |
| R.B. Batty (Blackhorse Farm) Limited | Caunton | 1977 |
| R.B. Milne Limited | Aberdeenshire | 2006 |
| R.B.Davies & Sons Limited | Oswestry, Shropshire | 1964 |
| R.B.R. (Crops) Limited | Norfolk | 1967 |
| R.B.R. Potatoes Limited | Norfolk | 1965 |
| R.C Adamson Ltd | Dumfries | 2020 |
| R.C. Engineering (Suffolk) Limited | Woodbridge | 2000 |
| R.C. Landforce Limited | Chelmsford | 2005 |
| R.C. Partridge & Co. Limited | Suffolk | 1997 |
| R.C.Eayrs Limited | Peterborough | 1952 |
| R.C.Langmead Limited | Chichester | 1959 |
| R.C.Reed Limited | 139 Fountainbridge | 1986 |
| R.Caudwell(Produce)Limited | Grimsby | 1964 |
| R.D. Chesters Limited | Bromyard | 2003 |
| R.D. Contractors Limited | Blandford | 2011 |
| R.D. Haylock & SON Limited | Royston | 1950 |
| R.D.Renwick Limited | | 1964 |
| R.D.Sharp Limited | Hull | 1961 |
| R.E. Archer (Farms) Limited | Uttoxeter | 1977 |
| R.E. Hudson (Farms) Limited | Spilsby | 1978 |
| R.E. Searby Limited | Loughborough | 1957 |
| R.E. Sheep Limited | Norwich | 1988 |
| R.E.P (West Wales) Limited | Carmarthen | 2023 |
| R.E.S. Bowser Limited | Spilsby | 1971 |
| R.F. Fielding HAY & Straw Limited | Stockport | 2007 |
| R.F. Staveley Limited | Bury St Edmunds | 1990 |
| R.F.Barnes(Farms)Limited | Cranbrook | 1957 |
| R.F.Hayward(Kelton Farms)Limited | Northampton | 1949 |
| R.F.Stratton Limited | Warminster | 1957 |
| R.F.Whitworth & Co Limited | Manningtree | 1956 |
| R.Fowler & Sons,Limited | Pershore | 1945 |
| R.G. Bain Limited | Orkney | 1957 |
| R.G. Boyce Limited | Newmarket | 1973 |
| R.G. Church Limited | Thirsk | 2008 |
| R.G. Farms Limited | Boston | 1985 |
| R.G. Kendall (Holdings) Limited | York | 2016 |
| R.G. Simpson Limited | Grantham | 1952 |
| R.G. Stephens and Sons Limited | Pershore | 1960 |
| R.G. Thornhill (Holly Farm) Limited | Thetford | 1971 |
| R.G. Walter & SON (Wheatley) Limited | Notts | 1989 |
| R.G.Barwell & Sons Limited | Spalding | 1952 |
| R.G.Hairsine Limited | Lincoln | 1962 |
| R.G.Kendall & Sons Limited | York | 1963 |
| R.G.Wright & Sons Limited | Halesworth | 1963 |
| R.Gibson & Sons Limited | Essex | 1957 |
| R.H. Ashcroft & Sons Limited | Maldon | 1951 |
| R.H. Mowbray Limited | Skegness | 1953 |
| R.H. Sprot & SON Limited | Berwick-Upon-Tweed | 2014 |
| R.H. Ward (Welton) Limited | Lincoln | 1959 |
| R.H. Wilden & Sons Limited | Colchester | 1981 |
| R.H.Blakeway & Sons Limited | Kidderminster | 1959 |
| R.H.Clayton & Sons Limited | Northwingfield | 1972 |
| R.H.J. Croxton & SON (Farms) Limited | Leominster | 1976 |
| R.H.Mountifield (Brantingham) Limited | Brough | 1950 |
| R.H.Topham & Sons Limited | Huntingdon | 1960 |
| R.H.Waterworth Limited | Peterborough | 1960 |
| R.Harkness & Co. Limited | Hertfordshire | 1954 |
| R.Harrison & Sons Limited | Skegness | 1957 |
| R.I.Davies (Civil Engineering) Ltd | Llantwit Major | 2006 |
| R.J. & A.E. Godfrey, | Brigg | 1950 |
| R.J. & N.J. Clarke Limited | Swindon | 2003 |
| R.J. & S.A. Rowe Farms Limited | | 1996 |
| R.J. Agri Services Limited | Hull | 2020 |
| R.J. Baker & Co. Limited | Driffield | 1994 |
| R.J. Cardwell (Farmers) Limited | Lancashire | 2003 |
| R.J. Hancocks Limited | Worcester | 2008 |
| R.J. Mcferran Limited | Newtownards | 2011 |
| R.J. Rose & SON Limited | Chinnor | 1983 |
| R.J.B Farms Ltd | Salisbury | 2025 |
| R.J.E. Trawlers Limited | Brixham | 1993 |