| COOPER, Miranda ACTIVE | Director | 14 Oct 2023 | | England | March 1972 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| GODDARD, Sharon Anne, Dr ACTIVE | Director | 06 Jan 2023 | | England | March 1952 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| GOYMER, Patrick James Andrew ACTIVE | Director | 21 Nov 2024 | | England | April 1977 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| HARDINGHAM, Joan Frances ACTIVE | Director | 24 Oct 2020 | | England | February 1952 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| HILTON, Michael ACTIVE | Director | 13 Nov 2025 | | England | September 1985 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| LLEWELLYN, Robyn ACTIVE | Director | 24 Oct 2020 | | England | March 1965 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| THOMSON, Calum Mackenzie ACTIVE | Director | 19 Nov 2020 | | England | June 1960 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| WORRALL, Stephen ACTIVE | Director | 14 Nov 2025 | | England | March 1955 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| BROW, John David Bromfield RESIGNED | Secretary | | 20 Jan 1993 | | | Lea Bank, Westerfield, Ipswich, Suffolk, IP6 9AJ |
| ROBINSON, James Portland RESIGNED | Secretary | 27 Jul 2005 | 21 Oct 2017 | | | Barcaple House School Lane, Fornham St Martin, Bury St Edmunds, Suffolk, IP31 1SP |
| TURNER, Walter Douglas Robinson RESIGNED | Secretary | 20 Nov 2002 | 27 Jul 2005 | | | Akenfield Cottage Ashbocking Road, Henley, Ipswich, Suffolk |
| WHYBROW, Joan Annette RESIGNED | Secretary | 20 Jan 1993 | 20 Nov 2002 | | | The Old Vicarage, Parsonage Hill Boxted, Colchester, Essex, CO4 5ST |
| ALBOROUGH, David Bryony RESIGNED | Director | 24 Oct 2015 | 23 Oct 2021 | England | May 1967 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk, IP6 9JY, England |
| ALEXANDER, James Matthew William RESIGNED | Director | 19 May 2016 | 21 Nov 2024 | England | November 1969 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| BARKER, David Eric RESIGNED | Director | 09 Dec 1997 | 21 Nov 2001 | England | June 1948 | Kells House, Westhorpe, Stowmarket, Suffolk, IP14 4SU |
| BROW, John David Bromfield RESIGNED | Director | | 31 Mar 2000 | | October 1930 | Lea Bank, Westerfield, Ipswich, Suffolk, IP6 9AJ |
| BROWN, Ian Douglas RESIGNED | Director | 27 Jan 2011 | 17 May 2018 | England | January 1949 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| BROWN, Ian Douglas RESIGNED | Director | 21 Oct 2003 | 05 Oct 2005 | England | January 1949 | Lower Common Farmhouse, Chelsworth, Ipswich, Suffolk, IP7 7HY |
| CARLISLE, Kenneth Melville, Sir RESIGNED | Director | 27 Jan 2011 | 20 Nov 2014 | England | March 1941 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| CLARKE, Grenville RESIGNED | Director | 15 Nov 2000 | 27 Oct 2004 | | July 1947 | Howes Cottage, Lawshall Green, Bury St. Edmunds, Suffolk, IP29 4QH |
| CLARKE, Grenville RESIGNED | Director | 30 Oct 1997 | 01 Apr 1998 | | July 1947 | Howes Cottage, Lawshall Green, Bury St. Edmunds, Suffolk, IP29 4QH |
| COOKE, Paul Neville Rodney RESIGNED | Director | 24 May 2007 | 27 Jan 2011 | United Kingdom | July 1947 | Stanny House Farm Iken, Woodbridge, Suffolk, IP12 2EY |
| COUSINS, John RESIGNED | Director | 26 Oct 2013 | 26 Oct 2019 | England | October 1953 | Brooke House, The Green, Ashbocking, Ipswich, IP6 9JY, England |
| COUSINS, John RESIGNED | Director | 31 Jan 1996 | 09 Dec 1997 | England | October 1953 | Flowtonbrook, Flowton, Ipswich, Suffolk, IP8 4LJ |
| CROSS, Nicholas RESIGNED | Director | 06 Jan 2023 | 16 Jul 2023 | England | August 1962 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| DRAYTON, Robin RESIGNED | Director | 26 May 2011 | 21 Oct 2017 | England | July 1946 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| EBURNE, Rachel Jane RESIGNED | Director | 16 Mar 2017 | 05 Sep 2019 | England | April 1966 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| ESCOBALES, Roxanne RESIGNED | Director | 21 Nov 2024 | 09 Mar 2025 | England | February 1973 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| FARTHING, Nigel Charles RESIGNED | Director | 26 Oct 2013 | 23 Oct 2021 | England | February 1955 | Brooke House, The Green, Ashbocking, Ipswich, IP6 9JY, England |
| GIRLING, Dawn Rose RESIGNED | Director | 26 Oct 2013 | 24 Jun 2015 | England | August 1956 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| GIRLING, Dawn Rose RESIGNED | Director | 21 Nov 2001 | 20 Aug 2008 | England | August 1956 | School House Church Walk, Shotley, Ipswich, IP9 1EU |
| GOLDSMITH, Denise RESIGNED | Director | 26 Oct 2013 | 03 Nov 2018 | England | April 1967 | Brooke House, The Green, Ashbocking, Ipswich, IP6 9JY, England |
| GOODWIN, Philippa RESIGNED | Director | 20 Mar 2014 | 24 Oct 2020 | England | August 1963 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| GOYMOUR, Anthony Charles RESIGNED | Director | 26 Oct 2013 | 24 Sep 2015 | England | March 1956 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| HOEFNAGEL, Sabine RESIGNED | Director | 13 Nov 2025 | 31 May 2026 | England | August 1970 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| HOLBORN, Peter RESIGNED | Director | 26 Oct 2013 | 26 Oct 2019 | England | September 1952 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| HOLBORN, Peter RESIGNED | Director | | 24 Nov 1995 | | September 1952 | 4 Hillside Cottages, Barking, Suffolk, IP6 8HW |
| HOLLANDS, James Martin RESIGNED | Director | 19 Nov 2020 | 23 Oct 2021 | England | October 1955 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| HOOTON, Susan Wendy RESIGNED | Director | 26 Oct 2019 | 13 Nov 2025 | England | April 1964 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| JACOB, William Le Grand RESIGNED | Director | 11 Dec 1996 | 24 May 2007 | | July 1928 | Brook House, Cumberland Street, Woodbridge, Suffolk, IP12 4AD |
| JONES, Stephanie Rae RESIGNED | Director | 03 Nov 2018 | 21 Nov 2024 | England | October 1988 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| KEEBLE, Ruth RESIGNED | Director | 25 Jan 1995 | 11 Dec 1996 | England | June 1936 | Brantham Hall, Brantham, Manningtree, Colchester, Essex, CO11 1PT |
| LOCK, Terence John RESIGNED | Director | 21 Oct 2003 | 26 May 2011 | United Kingdom | December 1949 | Camperdown Cottage, Spinney Lane, Ipswich, Suffolk, IP8 4LJ |
| MAULE, Eric Edmund RESIGNED | Director | 15 Nov 2000 | 21 Oct 2003 | | March 1938 | Salix House, Falkenham, Suffolk, IP10 0QY |
| NEWTON, Philip John RESIGNED | Director | 20 Sep 2018 | 23 Oct 2021 | England | February 1966 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| PHILBRICK, Hugh Ludlow RESIGNED | Director | | 03 Nov 1992 | | July 1922 | The Cottage, Great Bealings, Woodbridge, Suffolk, IP13 6NN |
| ROBERTS, Simon RESIGNED | Director | 26 Oct 2013 | 24 Oct 2020 | United Kingdom | August 1948 | Brooke House, The Green, Ashbocking, Ipswich, IP6 9JY, England |
| SALTMARSH, Anna Cordelia RESIGNED | Director | 21 Oct 2017 | 14 Oct 2023 | England | June 1975 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| SCOGGINS, Edward Thomas RESIGNED | Director | 21 Nov 2024 | 16 Jul 2025 | England | August 1962 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| SEARLE, Graham William RESIGNED | Director | 03 Nov 1992 | 24 Jan 1995 | | September 1946 | The Old Post Office, Huntingfield, Halesworth, Suffolk, IP19 0PU |
| WOODWARD, Timothy RESIGNED | Director | 24 Oct 2020 | 02 Aug 2025 | England | March 1957 | Brooke House, The Green, Ashbocking, Ipswich, Suffolk., IP6 9JY |
| SUFFOLK WILDLIFE TRUST LTD RESIGNED | Director | 26 May 2011 | 26 May 2011 | | | Brooke House, The Green, Ashbocking, Ipswich, Suffolk, IP6 9JY, England |