| CALNAN, Penny ACTIVE | Director | 22 Jun 2019 | | United Kingdom | May 1966 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| EWART, Camilla Adele ACTIVE | Director | 22 Jun 2019 | | England | August 1976 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| FERGUSON, Paul ACTIVE | Director | 09 Jan 2024 | | England | November 1972 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| FOX, Hannah Ruth ACTIVE | Director | 15 Sep 2023 | | England | February 1972 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| GREENLEES, Sally Helen ACTIVE | Director | 24 Apr 2023 | | England | September 1962 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| HOWELL, Philip Luard ACTIVE | Director | 01 Aug 2024 | | England | November 1955 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| MOORE, James Richard Branthwayt ACTIVE | Director | 16 Sep 2023 | | United Kingdom | December 1963 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| WELLS, Fergus ACTIVE | Director | 09 Jan 2023 | | England | February 1978 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| EDWARDS, Anita Margaret RESIGNED | Secretary | 15 Jun 2001 | 10 May 2002 | | | Wash Farm, Redlingfield, Eye, Suffolk, IP23 7QR |
| GORMAN, James John Stuart RESIGNED | Secretary | 10 May 2002 | 27 Nov 2009 | | | 2 Lime Meadows, Sewards End, Saffron Walden, Essex, CB10 2LQ |
| TAVENER, Nicholas John Willett RESIGNED | Secretary | | 16 Jun 2000 | | | The Grange, Brettenham, Ipswich, Suffolk, IP7 7PA |
| THOMAS, Richard James RESIGNED | Secretary | 16 Jun 2000 | 07 May 2001 | | | Sparrows, Shelley, Ipswich, Suffolk, IP7 5RQ |
| ANGELA, Mark David RESIGNED | Director | 27 Nov 2009 | 10 Jun 2016 | England | February 1964 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| BENNETT, Joanna Caroline RESIGNED | Director | 15 Jun 2007 | 07 Jul 2012 | England | March 1963 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| BIRD, Joseph Andrew RESIGNED | Director | | 06 Nov 1997 | | February 1933 | 30 Crown Street, Bury St Edmunds, Suffolk, IP33 1QU |
| BLAGDEN, Susan RESIGNED | Director | 05 Mar 1999 | 13 Jun 2003 | | August 1963 | Chateau De Warsy, 80500 Warsy, France |
| BOWMAN, John Edward Beck RESIGNED | Director | | 08 Nov 1994 | | April 1928 | Colneford House, White Colne, Colchester, Essex, CO6 2PJ |
| BROWNING, Mary Grace Ann RESIGNED | Director | | 31 May 1994 | England | December 1944 | Weatherhill Farm, Icklingham, Suffolk, IP28 6PP |
| BUCKLE, James Kennedy RESIGNED | Director | 21 Nov 2003 | 07 Jul 2012 | United Kingdom | November 1964 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| BUCKMASTER, Simon John RESIGNED | Director | 10 Nov 2000 | 14 Jun 2013 | England | April 1956 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| BULLEN, Nicholas Francis RESIGNED | Director | 15 Nov 2013 | 05 Aug 2019 | England | March 1967 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| BUSH, Charles Martin Peter RESIGNED | Director | 10 Nov 2006 | 20 May 2015 | United Kingdom | June 1952 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| CALNAN, Penny Clare RESIGNED | Director | 25 Mar 2019 | 10 Apr 2019 | England | August 1966 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| COLES, Sharon Amanda RESIGNED | Director | 24 Apr 2023 | 30 Jun 2023 | England | February 1971 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| COXON, Anne Veronica RESIGNED | Director | 16 Jun 1995 | 12 Nov 1999 | | April 1958 | Valley House Hawk Mill Street, Needham Market, Ipswich, IP6 8LU |
| CRAWSHAY, Claire Elizabeth Anne RESIGNED | Director | 18 Oct 2012 | 12 Dec 2018 | United Kingdom | February 1960 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| CUSTODIO, Emma Catherine RESIGNED | Director | 04 Mar 2016 | 27 Jan 2017 | England | March 1975 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| DERRICK, Hugh Geoffrey Byrne RESIGNED | Director | 18 Oct 2012 | 12 Jun 2017 | England | June 1961 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| DIXON-SMITH, Adam William George RESIGNED | Director | 15 Nov 2013 | 23 Feb 2022 | United Kingdom | January 1963 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| DOWIE, Miranda RESIGNED | Director | 27 Nov 2009 | 10 Jun 2016 | England | October 1962 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| DYSON, Richard Anthony RESIGNED | Director | 08 Nov 1994 | 22 Nov 2002 | | July 1940 | Headmasters House, St Faiths School, Cambridge, CB2 2AG |
| EDWARDS, Anita Margaret RESIGNED | Director | 03 Jun 1993 | 10 May 2002 | United Kingdom | March 1952 | Wash Farm, Redlingfield, Eye, Suffolk, IP23 7QR |
| EDWARDS, Margaret Alice RESIGNED | Director | 03 Mar 1998 | 04 Mar 2005 | England | January 1952 | Cools Framhouse, East Knoyle, Salisbury, Wiltshire, SP3 6DS |
| EWART, Camilla Adele RESIGNED | Director | 25 Mar 2019 | 10 Apr 2019 | England | August 1976 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| GORMAN, James John Stuart RESIGNED | Director | 12 Sep 2001 | 27 Nov 2009 | | July 1936 | 2 Lime Meadows, Sewards End, Saffron Walden, Essex, CB10 2LQ |
| HARRISON, Nicola Jane RESIGNED | Director | 25 Nov 2016 | 02 Apr 2020 | England | December 1969 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| HARVEY, Philippa Ruth RESIGNED | Director | 05 Nov 1992 | 07 Nov 1996 | | May 1948 | Brook Vale Farmhouse, Stowmarket Road, Rattlesden, Suffolk, IP30 0RR |
| HEINRICH, Christian St John Salter RESIGNED | Director | 28 Feb 2008 | 27 Nov 2009 | Great Britain | August 1958 | The Pink House Cumnor House School, Danehill, Haywards Heath, Westsussex, RH17 7HT |
| HOLLAND, Wendy Hope RESIGNED | Director | 13 Jun 2003 | 09 Nov 2007 | United Kingdom | March 1939 | 1, The French Apartments, De Courcel Road, Brighton, East Sussex, BN2 5RZ, England |
| HUGHES, David Michael Goldney RESIGNED | Director | 12 Sep 2001 | 27 Nov 2009 | England | July 1945 | Brook House Masons Lane, Woolpit, Bury St Edmunds, Suffolk, IP30 9QW |
| JOHNSON, Charles Peter RESIGNED | Director | | 13 Jun 1997 | England | October 1946 | Pages Farm, Stebbing, Dunmow, Essex, CM6 3BT |
| KEOGHANE, Stephen RESIGNED | Director | 22 Nov 2020 | 07 Nov 2022 | England | November 1966 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| KERR-DINEEN, Sarah Jane RESIGNED | Director | 08 Jun 2022 | 05 Jul 2025 | England | August 1963 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| KERR-DINEEN, Sarah Jane RESIGNED | Director | 03 Mar 2017 | 15 Feb 2021 | England | August 1963 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| KHAYAT, Jana Ruth RESIGNED | Director | 03 Mar 2000 | 02 Mar 2007 | England | August 1961 | 14, Chester Row, London, SW1W 9JH |
| LIDDELL, Duncan James Macduff RESIGNED | Director | 20 Mar 2015 | 24 Jun 2024 | England | March 1969 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| MACASKILL, Innes RESIGNED | Director | 12 Jun 2017 | 31 Aug 2020 | England | January 1957 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| MARTIN, Louise Helen RESIGNED | Director | 10 Jun 2016 | 19 Jul 2021 | England | September 1967 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| MASON, Edward Geoffrey RESIGNED | Director | 10 Jun 2016 | 13 Mar 2020 | England | December 1961 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| MCGREGOR, Andrew Roy RESIGNED | Director | 22 Jun 2019 | 01 Aug 2024 | England | August 1958 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| MCGREGOR, Andrew Roy RESIGNED | Director | 25 Mar 2019 | 10 Apr 2019 | England | August 1958 | Brook Cottage, Burnham Road, Woodham Mortimer, Maldon, CM9 6SP, England |
| MCMURRAY, David Bruce RESIGNED | Director | 04 Nov 1991 | 18 Jun 1999 | | December 1937 | Oundle School, New Street,Oundle, Peterborough, Cambridgeshire, PE8 4BN |
| MEACOCK, Rosalind Joan Russell RESIGNED | Director | | 03 Jun 1993 | England | August 1943 | Pollins 6 Windhill, Bishops Stortford, Hertfordshire, CM23 2NG |
| MEADOWS-SMITH, Wendy Alice, Ms. RESIGNED | Director | 15 Mar 2019 | 31 Aug 2020 | United Kingdom | July 1988 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| MINTER, Christopher John RESIGNED | Director | 29 May 2015 | 07 Apr 2022 | England | November 1966 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| MOORE, William George Ashton RESIGNED | Director | 15 Nov 2013 | 10 Jun 2016 | England | September 1967 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| NICHOLLS, Mark William RESIGNED | Director | 03 Mar 2000 | 24 Jun 2011 | England | August 1956 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| PAGE, John Michael RESIGNED | Director | 02 Jun 1994 | 13 Jun 1997 | | June 1928 | 12 Branksome Road, Norwich, Norfolk, NR4 6SN |
| PAGE, Nicholas RESIGNED | Director | 17 Oct 2014 | 24 Jun 2024 | England | June 1977 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| PEROWNE, Robert William RESIGNED | Director | 10 May 2002 | 21 Nov 2003 | United Kingdom | August 1956 | High House Farm, Docking, King's Lynn, Norfolk, PE3 18PD |
| PEROWNE, Robert William RESIGNED | Director | 08 Nov 1994 | 15 Jun 2001 | United Kingdom | August 1956 | High House Farm, Docking, King's Lynn, Norfolk, PE3 18PD |
| PRYKE, Helen Kate Weir RESIGNED | Director | 20 Mar 2015 | 31 Aug 2020 | England | December 1974 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| QUICK, James RESIGNED | Director | 13 Mar 2020 | 13 Apr 2023 | England | March 1962 | Old Buckenham Hall, Brettenham, Ipswich, IP7 7PH, England |
| RIPMAN, Hujohn Armstrong RESIGNED | Director | | 03 Jun 1993 | | January 1918 | Red House, Sproughton, Ipswich, Suffolk, IP8 3AT |
| RODGER-BROWN, Donald RESIGNED | Director | | 18 Jun 1999 | | July 1939 | Coldhams House, Glemsford, Sudbury, Suffolk, CO10 7RQ |
| ROSS-STEWART, Charles Denholm RESIGNED | Director | 27 Nov 2009 | 29 May 2015 | Scotland | May 1964 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| SEWELL, David John Elliott RESIGNED | Director | 04 Mar 1997 | 12 Jun 2017 | England | June 1956 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| SHALLOW, Michael St John RESIGNED | Director | 16 Jun 2006 | 29 May 2015 | England | September 1954 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| SHELLEY, Emily Louisa RESIGNED | Director | 01 Dec 2011 | 12 Jun 2017 | England | February 1972 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| SPINNEY, Michael William RESIGNED | Director | 24 Jun 2011 | 14 Mar 2014 | England | June 1954 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| TAVENER, Nicholas John Willett RESIGNED | Director | | 16 Jun 2000 | United Kingdom | February 1949 | The Grange, Brettenham, Ipswich, Suffolk, IP7 7PA |
| THOMAS, Richard James RESIGNED | Director | 04 Mar 1997 | 07 May 2001 | | November 1948 | Sparrows, Shelley, Ipswich, Suffolk, IP7 5RQ |
| TOWNSEND, Ralph Douglas, Dr RESIGNED | Director | 12 Nov 1999 | 16 Jun 2006 | United Kingdom | December 1951 | Winchester College, College Street, Winchester, Hampshire, SO23 9NA |
| WALKER, Michael Gerald RESIGNED | Director | | 06 Nov 1997 | | June 1946 | Bundish Hall, Moreton, Ongar, Essex, CM5 0HP |
| WALKER, Rosemary Jean Winter RESIGNED | Director | 28 Feb 2008 | 16 Mar 2012 | England | July 1963 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| WATSON, Emma Louise RESIGNED | Director | 24 Nov 2017 | 29 Mar 2019 | England | September 1980 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |
| WELLER-POLEY, Melissa Katharine RESIGNED | Director | 25 Nov 2016 | 12 Dec 2018 | England | March 1975 | Brettenham Park, Ipswich, Suffolk, IP7 7PH |