| LEWIS, Elizabeth Amie, Dr ACTIVE | Secretary | 31 Dec 2019 | | | | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, SA62 3AQ, Wales |
| ANCILL, Harry Josef ACTIVE | Director | 03 Dec 2021 | | England | February 1994 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| CURTIN, Brian ACTIVE | Director | 12 May 2015 | | Ireland | December 1975 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| HARVEY-WHITE, Alana Jane ACTIVE | Director | 03 Dec 2021 | | England | February 1972 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| JESSOP, Vicky ACTIVE | Director | 23 May 2019 | | England | December 1976 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| PICKARD, David ACTIVE | Director | 03 Dec 2021 | | England | June 1963 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| SHAW, Jody Graeme ACTIVE | Director | 03 Dec 2021 | | England | January 1968 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| WYLIE, Lin Mary, Dr ACTIVE | Director | 29 Apr 2014 | | England | February 1973 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| BALL, James Andrew RESIGNED | Secretary | 01 Jan 2011 | 31 May 2014 | | | Cottage Farm, Plaistow Green Road, Nr Matlock, Derbyshire, DE4 5GX, England |
| BEAUMONT, William Hugh RESIGNED | Secretary | | 31 Aug 2002 | | | Brookwood Farm, Hareplain Biddenden, Ashford, Kent, TN27 8LL |
| BROWN, Geoffrey James Philip RESIGNED | Secretary | 01 Jun 2014 | 31 May 2019 | | | 10, Coasthill, Crich, Matlock, Derbyshire, DE4 5DS, England |
| EVANS, Harry William RESIGNED | Secretary | 01 Sep 2002 | 31 Dec 2010 | | | 238 Chester Road, Hartford, Northwich, Cheshire, CW8 1LW |
| BEDFORD, Michael Richard RESIGNED | Director | 27 Apr 2006 | 14 May 2011 | England | July 1960 | Chestnut House, Beckhampton, Wiltshire, SN8 1QJ |
| BEE, Geoffrey RESIGNED | Director | | 20 Jul 2006 | | August 1945 | 2 Parkside Drive, Long Eaton, Nottingham, Nottinghamshire, NG10 4AL |
| BROWN, Geoffrey James Phillip RESIGNED | Director | 30 Apr 2009 | 31 May 2014 | England | April 1954 | Lecoste Coasthill, Crich, Matlock, Derbyshire, DE4 5DS |
| COLE, Charlotte Anna RESIGNED | Director | 14 Dec 2020 | 14 Jul 2021 | England | October 1981 | Lodge Farm, Greens Norton Road, Towcester, NN12 8AW, England |
| COOK, Melvyn William RESIGNED | Director | 26 Nov 2003 | 23 Apr 2008 | | December 1953 | Clock Cottage, West Ilsley, Newbury, Berkshire, RG20 7AW |
| DEAVILLE, Shane Peter RESIGNED | Director | 26 Nov 1991 | 25 Jun 1998 | | August 1954 | 7 Church Close, Marchington, Uttoxeter, Staffordshire, ST14 8NQ |
| DILLON, Gerald Patrick, Dr RESIGNED | Director | 28 Apr 2016 | 15 Dec 2022 | Ireland | June 1977 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| FORSTER, Paul Denholm RESIGNED | Director | 27 Apr 2006 | 29 May 2015 | England | June 1957 | 24 Rutland Lane, Bottesford, Notts, NG13 0DG |
| GILES, Emily Laura RESIGNED | Director | 29 Apr 2014 | 28 Feb 2019 | England | July 1990 | Probiotics International Ltd, Lopenhead, South Petherton, Somerset, TA13 5JH, England |
| GRACE, John Robert RESIGNED | Director | 01 Dec 1994 | 30 Nov 1995 | England | September 1951 | 38 Grebe Close, Alton, Hampshire, GU34 2LR |
| GRAHAM, Hadden RESIGNED | Director | 14 May 2011 | 29 Apr 2014 | England | June 1954 | 13, Kelham Gardens, Marlborough, Wiltshire, SN8 1PW, United Kingdom |
| GRAHAM, Hadden RESIGNED | Director | 27 Apr 2006 | 03 May 2007 | England | June 1954 | 13 Kelham Gardens, Marlborough, Wiltshire, SN8 1PW |
| JACKSON, Nigel RESIGNED | Director | 26 Nov 2002 | 01 Jan 2005 | | July 1949 | 10 Park Lane, Guisborough, Cleveland, TS14 6LD |
| JACKSON, Nigel RESIGNED | Director | 01 Dec 1994 | 28 Nov 1996 | | July 1949 | 10 Park Lane, Guisborough, Cleveland, TS14 6LD |
| JACKSON, Nigel RESIGNED | Director | | 25 Nov 1993 | | July 1949 | 10 Park Lane, Guisborough, Cleveland, TS14 6LD |
| JESSOP, Vicky RESIGNED | Director | 17 May 2018 | 30 Nov 2018 | England | December 1976 | Anpario Plc, Manton Wood Enterprise Park, Worksop, S80 2RS, England |
| JONES, Philip Baskerville RESIGNED | Director | 03 May 2007 | 11 Dec 2025 | Wales | April 1959 | Ground Floor Lhs Frederick House, Hayston View, Johnston, Haverfordwest, Pembrokeshire, SA62 3AQ, Wales |
| KENNEDY, Gordon RESIGNED | Director | | 25 Nov 1993 | | August 1930 | 1 Beech Wood Drive, Wincham, Northwich, Cheshire, CW9 6EY |
| KUSIAK, Andrzej Mikhail RESIGNED | Director | 29 Apr 2014 | 01 Jul 2016 | England | March 1986 | Unit 3, Woodstock Court, Blenheim Road, Marlborough, Wiltshire, SN8 4AN, England |
| LAUWAERTS, Angelo RESIGNED | Director | 29 Apr 2014 | 29 May 2015 | Belgium | November 1969 | Guldensporenpark 73,, Bldg. H. Fl. 1., Merelberke, B-9820, Belgium |
| LAWRENCE, Keith, Dr RESIGNED | Director | 30 Nov 1995 | 28 Nov 2000 | | April 1949 | 23 Woodside Gardens, Chineham, Basingstoke, Hampshire, RG24 8EU |
| LOCKINGTON, Aileen Angela RESIGNED | Director | 05 Feb 2008 | 03 Dec 2021 | England | May 1975 | 3 Norton Road, Stoke-Sub-Hamdon, Somerset, TA14 6QW |
| LONG, John Albert RESIGNED | Director | 25 Nov 1993 | 30 Nov 1999 | England | April 1934 | Flat 6 15 The Grange, Flax Bourton, Bristol, BS48 3QH |
| LOWE, Robin Anthony, Doctor RESIGNED | Director | | 26 Nov 1992 | | April 1944 | Hatherleigh, Ashbourne Road, Turnditch, Derbyshire, DE56 2LH |
| MIDDLETON, Samuel Edward RESIGNED | Director | 25 Nov 1993 | 26 Nov 2002 | | October 1944 | 25 Thirsk Road, Northallerton, North Yorkshire, DL6 1PE |
| PROBERT, Lyn RESIGNED | Director | 03 May 2012 | 29 Apr 2014 | United Kingdom | November 1971 | 5, Springfields, Astor Crescent Ludgershall, Andover, Hampshire, SP11 9BW, United Kingdom |
| SHEPPERSON, Nigel Patrick Gordon RESIGNED | Director | 26 Nov 2002 | 30 Sep 2005 | England | March 1957 | 184 Rake End, Hill Ridware, Rugeley, WS15 3RQ |
| SHORROCK, Colin RESIGNED | Director | 01 Dec 1994 | 30 Sep 2005 | | May 1946 | 29 Godwins Close, Atworth, Melksham, Wiltshire, SN12 8LD |
| SINGER, Michael Inglis Campbell, Dr RESIGNED | Director | 24 Nov 1998 | 30 Jun 2006 | | May 1942 | 3 Brownfield Way, Wheathampstead, St Albans, Hertfordshire, AL4 8LL |
| SKETCHER, Sally Jane RESIGNED | Director | 28 Nov 1996 | 01 Jan 2005 | England | March 1960 | The Larels 141 Barlaston Road, Trentham, Stoke On Trent, Staffordshire, ST4 8HJ |
| SPRECKLEY, Neil RESIGNED | Director | 02 Jun 2015 | 03 Dec 2021 | England | June 1957 | Corner House, Withington, Cheltenham, Gloucestershire, GL54 4BE, England |
| STOKER, John William RESIGNED | Director | | 01 Dec 1994 | | December 1939 | Hollington Cross Farm, Highclere, Newbury, Berkshire, RG15 9SE |
| THOMPSON, Alison Jane RESIGNED | Director | 25 Nov 1993 | 31 Jul 1998 | | February 1954 | 29 Ridgeway Road, Redhill, Surrey, RH1 6PQ |
| THOMPSON, Jason Gaun RESIGNED | Director | 25 Nov 1993 | 01 Dec 1994 | | September 1953 | 6 Pembroke Street, Cinderford, Gloucestershire, GL14 2DG |
| TZORIS, Achilles, Dr RESIGNED | Director | 03 May 2012 | 01 Dec 2020 | United Kingdom | November 1964 | 12, Burling Walk, Milton, Cambridge, CB24 6DX, United Kingdom |
| WYLIE, Lin Mary, Dr RESIGNED | Director | 29 Apr 2014 | 17 Aug 2015 | England | February 1973 | 80, Main Road, Earls Barton, Northampton, NN6 0HJ, England |
| YOUNG, Kenneth Roy RESIGNED | Director | 28 Nov 1996 | 26 Nov 2002 | United Kingdom | August 1936 | Highfield House Highfield Road, Congleton, Cheshire, CW12 3AQ |