| W.J. Scott Ltd | Hexham | 2004 |
| W.J. Skipper (Haulage) Limited | Burton On Trent | 1965 |
| W.J. Watkins & SON Limited | Launceston | 1976 |
| W.J.&M.Mash Limited | Chesham | 1936 |
| W.J.Bracey Limited | Postwick, Norwich | 1959 |
| W.J.D. Limited | South Molton | 1989 |
| W.J.F.Ross Limited | Norfolk | 1956 |
| W.J.Knight(Farms)Limited | Essex | 1941 |
| W.J.Miller & Sons Limited | Andover | 1961 |
| W.J.Rowlings Nurseries Limited | Pershore | 1959 |
| W.J.Russell & Son(Dunchurch)Limited | Rugby | 1963 |
| W.Keeley & Sons Limited | Battle, | 1958 |
| W.L. Davidson-Gall & Co Ltd. | Peterhead | 1996 |
| W.Lanham & Sons Limited | Norfolk | 1961 |
| W.Lawrence Taylor,Limited | Chelmsford | 1952 |
| W.Leslie Caley Limited | Driffield | 1955 |
| W.Litherland(Farming)Limited | Hale | 1964 |
| W.M Allison & Sons Farms Ltd | Darlington | 2025 |
| W.M. & D.M. Morgan Limited | Carmarthen | 1984 |
| W.M. Elliot and SON Limited | Kettering | 1978 |
| W.M. Hutchison (LOW Mains) Limited | Wigtownshire | 1983 |
| W.M.Cooper & Sons Limited | Boston | 1924 |
| W.M.S. (Norfolk) Limited | Great Yarmouth | 1993 |
| W.Mandry Limited | Hook | 1955 |
| W.N.Hall & Sons Limited | Newcastle On Tyne | 1943 |
| W.Nixon and Sons Limited | Cheadle | 1956 |
| W.O. Alderson Limited | Yarm | 1963 |
| W.O. Sheeran (Farms) Limited | Walgherton | 1980 |
| W.O. Slatter and SON Limited | Cheltenham | 2006 |
| W.O. Watt & Partners Limited | Essex. | 1979 |
| W.O. Young & Sons (Feeds) Ltd | Co Tyrone | 1997 |
| W.O.J. Reed & Company Limited | Haverfordwest | 2011 |
| W.P.Bruce Limited | Perthshire | 1961 |
| W.R. Brown (Farms) Limited | Scunthorpe, | 1973 |
| W.R. Curnick Limited | Marlborough | 1957 |
| W.R. Farms Limited | Eye | 2023 |
| W.R. Gill (Farms) Limited | March | 1979 |
| W.R. Haines (Leasow Farms) Limited | Chipping Campden | 1973 |
| W.R. Humphrey & SON (Farmers) Limited | Spalding | 1956 |
| W.R. Richards & Sons Limited | Truro | 1955 |
| W.R.Bass Agricultural Services Ltd | Sevenoaks | 2026 |
| W.R.Larkin Limited | Horsmonden | 1930 |
| W.R.Sandow Limited | Cornwall | 1964 |
| W.R.Thomas & Sons(Contractors)Limited | Staffs | 1971 |
| W.S. Bayston & SON Limited | Leeds | 1985 |
| W.S. Bentley (Growers) Limited | Gomersal Cleckheaton | 1994 |
| W.S.Chapman & Sons Limited | Scunthorpe | 1957 |
| W.S.F. Specialist Marketing Limited | Malton | 2006 |
| W.S.Furnival Limited | Romney Marsh | 1971 |
| W.S.Furnival(Brookland)Limited | Ashford | 1971 |
| W.S.Harris and Sons Limited | Doncaster | 1952 |
| W.Seabrook & Sons Limited | Little Leighs Chelmsford | 1918 |
| W.St.J.Brice Limited | Hoo, Rochester | 1954 |
| W.Steven Limited | By Arbroath | 1991 |
| W.Swinbank & Sons Limited | Richmond | 1961 |
| W.T. Banks & Co (Farming) Limited | Chester | 1977 |
| W.T. Davies & Co. CYF | Ceredigion | 2006 |
| W.T.Doggett & Co Limited | Royston | 1957 |
| W.T.E. Limited | London | 1998 |
| W.W.Hannam & Sons Limited | Dorset | 1962 |
| W.Ward Limited | Wells-Next-The-Sea | 2012 |
| W9YTE Electrical Ltd | Fraserburgh | 2007 |
| WA & EM Mathias Limited | Haverfordwest | 2007 |
| WA (Fishing) Ltd | Fraserburgh | 2024 |
| WA a ME Davies CYF | Llandysul | 2003 |
| WA Armstrong (Cattle) Ltd | Stockton-On-Tees | 2026 |
| WA1PAW Ltd. | Altrincham | 2013 |
| WAC 2020 Limited | Barnsley | 2020 |
| Wadaa Ltd | Ulverston | 2018 |
| Wadd Farm Ltd | Cranbrook | 2023 |
| Waddingham Land Limited | Brigg | 2014 |
| Waddon Farm Limited | Shepton Mallet | 1960 |
| Waddon Hill Ltd | Taunton | 2019 |
| Wade Bros. (Manor Farm) Limited | Nr.Doncaster | 1967 |
| Wade Environmental Ltd | Basingstoke | 2019 |
| Wades Game Farm Ltd | King'S Lynn | 2021 |
| Wadey Trees Ltd | Blandford Forum | 2020 |
| Wadim Ltd | London | 2024 |
| Wadland Limited | Daventry | 2010 |
| Wadsworth Farming Ltd | Newton Stewart | 2023 |
| Wadwick Farm Limited | Winchester | 2006 |
| Waen Farms Limited | Powys | 2004 |
| Waen LAS Shires Ltd | Denbigh | 2024 |
| Wafs Pacific Limited | Nottingham | 2025 |
| Waft Ltd | Stafford | 2018 |
| WAG 1 WAG Ltd | Sherfield English | 2024 |
| Wag'N'Tails Doggy Daycare Ltd. | Etchingham | 2025 |
| Wagaford Limited | Beaworthy | 2022 |
| Wagatails Ltd | Kingswinford | 2019 |
| Wagging Tailz Ltd | St Annes | 2025 |
| Waggling BEE Ltd | Reading | 1997 |
| Waggoners Farm Ltd | Tetbury | 2015 |
| Wags Dog Day Care Ltd | Sutton Coldfield | 2013 |
| Wags of Cranage Ltd | Cranage | 2018 |
| Wagswood Ecoproject CIC | Gorseinon | 2023 |
| Wahl International Limited | Derby | 2004 |
| Waikato Milking Systems UK Limited | Shrewsbury | 2014 |
| Waikiki Fishing Limited | Dorset | 2003 |
| Wainlode Suffolks Limited | Bishops Norton | 2006 |
| Wainsford's Dairy Limited | Sudbury | 1952 |