| GUPTA, Amit ACTIVE | Director | 01 Mar 2026 | | United States | March 1972 | Bilton Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1HP |
| SMITS, Jeffrey Kenneth ACTIVE | Director | 10 Jun 2025 | | United States | April 1970 | 777, E Wisconsin Avenue, Suite1100, Milwaukee, Wisconsin, 53202, United States |
| FARMER, Adrian John RESIGNED | Secretary | | 07 Jul 1994 | | | 12 Church Road, Bitton, Bristol, Avon, BS15 6HH |
| FOELL, Darrell William RESIGNED | Secretary | 30 Dec 1994 | 30 Aug 1996 | | | 2405 Merlin Way, Brookfield 53045-1604, Wisconsin Usa, FOREIGN |
| O'REILLY, Terrence RESIGNED | Secretary | 07 Jul 1994 | 30 Dec 1994 | | | 6285 Parkview Road, Greendale, Wisconsin, 53219, Usa |
| GRAVITAS COMPANY SECRETARIAL SERVICES LIMITED RESIGNED | Secretary | 30 Aug 1996 | 25 Jun 2014 | | | One, New Change, London, EC4M 9AF |
| AGALLAR, Amy Michelle RESIGNED | Director | 09 Dec 2020 | 10 Jun 2025 | United States | May 1977 | Sensient Technologies Corporate, 777 E Wisconsin Avenue, Suite 1100, Milwaukee, Wi 53202, United States |
| DE MEYER, Michael Francois RESIGNED | Director | 16 Jan 2015 | 01 Jun 2020 | United Kingdom | September 1959 | Bilton Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1HP |
| FARMER, Adrian John RESIGNED | Director | | 01 Apr 2011 | | April 1955 | Station House, 61 Midland Road, Olney, Buckinghamshire, MK46 4BP |
| FOELL, Darrell William RESIGNED | Director | 30 Dec 1994 | 28 Aug 2001 | | July 1935 | 2405 Merlin Way, Brookfield 53045-1604, Wisconsin Usa, FOREIGN |
| GEORGE, Michael Edward RESIGNED | Director | 01 Jun 2020 | 01 Mar 2026 | England | November 1966 | Bilton Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1HP |
| HEESTERMAN, Paul Johannes RESIGNED | Director | 01 Apr 2011 | 06 Jan 2014 | United Kingdom | May 1958 | Bilton Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1HP |
| HOLUBOWIGH, Leonard RESIGNED | Director | | 30 Sep 1994 | | January 1942 | 17 Evergreen Road, West Caliwell, New Jersey 07006, Usa |
| LAWLOR, Christopher L RESIGNED | Director | 28 Aug 2001 | 08 Apr 2005 | | February 1950 | 10425 N. Birch Ct, Mequon, Wisconsin 53092, Usa |
| MAKAL, Jeffrey Thomas RESIGNED | Director | 08 Apr 2005 | 17 Sep 2019 | United States | May 1963 | 13870 West Pleasant View Drive, New Berlin, Wisconsin 53151, FOREIGN |
| MCDIARMID, William Hurton RESIGNED | Director | | 31 Jan 1997 | | December 1931 | 141 Valecrest Drive, Etobicome, Ontario, Canada, FOREIGN |
| MILLER, Chris RESIGNED | Director | | 07 Jul 1994 | | January 1952 | 1 Scotdale Drive, Cambridge, Ontario, Canada, FOREIGN |
| O'REILLY, Terrence RESIGNED | Director | 07 Jul 1994 | 30 Dec 1994 | | September 1945 | 6285 Parkview Road, Greendale, Wisconsin, 53219, Usa |
| RASMUSSEN, Noah John RESIGNED | Director | 17 Sep 2019 | 09 Dec 2020 | United States | February 1978 | Bilton Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1HP |
| RICH, Colwyn George RESIGNED | Director | | 07 Jul 1994 | | November 1927 | Puslinch, Ontario Nob 2jo, FOREIGN, Canada |
| RICH, Jane Elizabeth RESIGNED | Director | | 07 Jul 1994 | | April 1958 | Chestnut Lodge, Falcondale Drive, Lampeter, Dyfed, SA48 7SR |
| SONNENBERG, Steffen, Dr RESIGNED | Director | 06 Jan 2014 | 30 Dec 2014 | United Kingdom | March 1964 | Bilton Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1HP |