| MCCULLOCH, Shirley ACTIVE | Secretary | 12 Sep 2022 | | | | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| BOEHMER, Jutta Elisabeth, Dr ACTIVE | Director | 17 Jun 2024 | | England | January 1971 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| EVE, Graham Francis ACTIVE | Director | 16 Jan 2026 | | United Kingdom | September 1975 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| HOLLANDS, Michael John ACTIVE | Director | 17 Jun 2024 | | Switzerland | March 1964 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| MUTTON, Lynsey, Dr ACTIVE | Director | 01 Jan 2024 | | England | January 1982 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| BAYLISS, Matthew David RESIGNED | Secretary | 12 Jul 2002 | 12 Sep 2022 | | | Bramley House, The Guildway, Old Portsmouth Road, Artington, Guildford, Surrey, GU3 1LR, United Kingdom |
| BOARDMAN, Lynton David RESIGNED | Secretary | 04 Apr 2001 | 12 Jul 2002 | | | 1 Cumberland Close, London, SW20 8AT |
| MUSKER, Graeme Harold Rankine RESIGNED | Secretary | 25 Sep 1992 | 04 Jan 2000 | | | The Mill House Mill Lane, Balcombe, Haywards Heath, West Sussex, RH17 6QT |
| SULLIVAN, Jonathan Dale RESIGNED | Secretary | 04 Jan 2000 | 04 Apr 2001 | | | 92 Hotham Road, London, SW15 1QP |
| HACKWOOD SERVICE COMPANY RESIGNED | Nominee Secretary | 29 Apr 1992 | 25 Sep 1992 | | | Barrington House 56-67 Gresham Street, London, EC2V 7BB |
| BARNES, James David Francis, Sir RESIGNED | Director | 25 Sep 1992 | 04 Jan 2000 | | March 1936 | Fipps Cottage, Witheridge Hill, Henley On Thames, Oxfordshire, RG9 5PE |
| BISSELL, Robert Bruce RESIGNED | Director | 13 Nov 2000 | 20 Feb 2007 | | September 1946 | European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| BOARDMAN, Lynton David RESIGNED | Director | 04 Apr 2001 | 12 Jul 2002 | | January 1967 | 1 Cumberland Close, London, SW20 8AT |
| BOTHAM, Philip Andrew, Dr RESIGNED | Director | 21 Mar 2014 | 21 Sep 2018 | England | May 1954 | Bramley House, The Guildway, Old Portsmouth Road, Artington, Guildford, Surrey, GU3 1LR, United Kingdom |
| BUGNON, Pascal, Dr RESIGNED | Director | 01 Jan 2019 | 17 Jun 2024 | Switzerland | June 1966 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| BUSHELL, Michael John, Dr RESIGNED | Director | 20 Feb 2007 | 13 Jan 2010 | | December 1954 | European Regional Centre, Priestley Road,Surrey Research Park, Guildford, Surrey, GU2 7YH |
| CONN, Alistair David, Dr RESIGNED | Director | 17 May 2013 | 31 Dec 2021 | England | July 1965 | Bramley House, The Guildway, Old Portsmouth Road, Artington, Guildford, Surrey, GU3 1LR, United Kingdom |
| DEMPSEY, Neil RESIGNED | Director | 04 Apr 2001 | 23 Jul 2004 | | March 1955 | European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| DOYLE, Peter, Doctor RESIGNED | Director | | 05 Apr 1999 | | September 1938 | Twin Oaks Crawley Drive, Camberley, Surrey, GU15 2AA |
| GILLHAM, David John, Dr RESIGNED | Director | 13 Oct 2003 | 06 Apr 2006 | | February 1960 | European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| GRAY, Thomas, Dr RESIGNED | Director | 21 Mar 2014 | 31 Dec 2018 | Switzerland | April 1964 | Bramley House, The Guildway, Old Portsmouth Road, Artington, Guildford, Surrey, GU3 1LR, United Kingdom |
| HALLIWELL, James Dominic RESIGNED | Director | 14 Jan 2014 | 17 Jun 2024 | Switzerland | February 1963 | Bramley House, The Guildway, Old Portsmouth Road, Artington, Guildford, Surrey, GU3 1LR, United Kingdom |
| HENDRIE, Ronald RESIGNED | Director | 31 Dec 2007 | 17 May 2013 | United Kingdom | July 1963 | European Regional Centre, Priestley Road, Surrey Research Park, Guildford, Surrey, GU2 7YH |
| HILL, Keith Edward RESIGNED | Director | 13 Nov 2000 | 10 Nov 2003 | | September 1952 | European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| HOLDSWORTH, Richard RESIGNED | Director | 04 Apr 2001 | 02 Jul 2002 | | October 1945 | 3 Loxhill Cottages, Godalming Road, Hascombe, Surrey, GU8 4BQ |
| JOHNSON, Andrew David RESIGNED | Director | 23 Jul 2004 | 31 Dec 2023 | United Kingdom | February 1964 | Bramley House, The Guildway, Old Portsmouth Road, Artington, Guildford, Surrey, GU3 1LR, United Kingdom |
| LEWIS, Fraser John, Dr RESIGNED | Director | 21 Sep 2018 | 31 Dec 2019 | United Kingdom | December 1961 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| MAYO, John Charles RESIGNED | Director | | 01 Oct 1997 | England | April 1956 | 1 Ellerdale Close, Hampstead, London, NW3 6BE |
| MCKILLOP, Thomas Fulton Wilson, Doctor RESIGNED | Director | 08 Jan 1996 | 13 Nov 2000 | | March 1943 | Flat 7 Rosebery Court, 13/15 Charles Street, London, W1X 7HB |
| PEACOCK, Mark Gerard RESIGNED | Director | 20 Feb 2007 | 21 Mar 2014 | Switzerland | February 1961 | European Regional Centre, Priestley Road,Surrey Research Park, Guildford, Surrey, GU2 7YH |
| PINK, Alan Ind Harvey RESIGNED | Director | 11 May 1993 | 05 Apr 1999 | | February 1938 | The Coppice, Pasture Road, Letchworth, Hertfordshire, SG6 3LW |
| PRAGNELL, Michael Patrick RESIGNED | Director | 01 Jan 1997 | 04 Apr 2001 | United Kingdom | December 1946 | Pound Cottage Church Lane, Silchester, Reading, Berkshire, RG7 2LR |
| RAMSAY, John RESIGNED | Director | 28 Nov 2003 | 14 Jan 2014 | United Kingdom | October 1957 | Syngenta, European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| REAY, James RESIGNED | Director | 11 Feb 2020 | 17 Jun 2024 | United Kingdom | May 1976 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| RICHARDS, Christopher Gareth Joseph RESIGNED | Director | 06 Aug 2002 | 12 Sep 2003 | | October 1953 | European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| RODGERS, Anthony Thomas George RESIGNED | Director | | 30 Sep 1995 | | June 1940 | Yeoman's Farm, Three Oaks Lane, Wadhurst, East Sussex, TN5 6PX |
| RUSHTON, Kenneth John RESIGNED | Director | 25 Sep 1992 | 18 Jan 1993 | England | October 1944 | Chippins Shophouse Lane, Farley Green, Albury, Surrey, GU5 9EQ |
| SNELL, Darren Paul RESIGNED | Director | 13 Jan 2010 | 21 Mar 2014 | United Kingdom | February 1967 | Syngenta European Regional, Centre Priestley Road, Surrey Research Park Guildford, Surrey, GU2 7YH |
| STAVLING, Ake Bo RESIGNED | Director | 04 Jan 2000 | 13 Nov 2000 | | January 1945 | Flat 9 20 Lowndes Square, London, SW1X 9HD |
| SWAINE, Harry RESIGNED | Director | 06 Apr 2006 | 20 Feb 2007 | | October 1950 | European Regional Centre, Priestley Road Surrey Research Park, Guildford, Surrey, GU2 7YH |
| SWAN, Robert Renny RESIGNED | Director | 23 Jul 2004 | 31 Dec 2007 | | February 1952 | European Regional Centre, Priestley Road, Surrey Research Park, Surrey, GU2 7YH |
| SYMONDS, Jonathan Richard RESIGNED | Director | 01 Oct 1997 | 13 Nov 2000 | United Kingdom | February 1959 | Batchworth Heath House, Batchworth Heath, Rickmansworth, Hertfordshire, WD3 1QB |
| WADDINGTON, Peter RESIGNED | Director | 23 May 2022 | 23 Sep 2025 | England | October 1965 | Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom |
| WHITE, Victor Oscar RESIGNED | Director | 25 Sep 1992 | 18 Jan 1993 | United Kingdom | August 1936 | 15 The Winery, Regents Bridge Gardens,Vauxhall, London, SW8 1JR |
| WILLIAMS, Kevin RESIGNED | Director | 06 Aug 2002 | 23 Jul 2004 | | February 1954 | Syngenta Huddersfield Manufacturing, Centre Leeds Road, Huddersfield, West Yorkshire, HD2 1FF |
| HACKWOOD DIRECTORS LIMITED RESIGNED | Nominee Director | 29 Apr 1992 | 25 Sep 1992 | | | One Silk Street, London, EC2Y 8HQ |