| HOMDEN, Carol Ann, Dr ACTIVE | Secretary | 01 Sep 2011 | | | | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| BURTON, Jamie ACTIVE | Director | 31 Mar 2021 | | England | April 1975 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| DAWSON, Celia Anne ACTIVE | Director | 26 Jun 2019 | | England | September 1959 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| LEWIS, Danielle ACTIVE | Director | 20 Mar 2023 | | England | June 1970 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| O'SULLIVAN, Alison Jane ACTIVE | Director | 28 Jan 2026 | | United Kingdom | March 1955 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| PORTES, Jonathan Daniel ACTIVE | Director | 21 Jun 2017 | | England | April 1966 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| STEADMAN, David John ACTIVE | Director | 24 Sep 2025 | | England | August 1972 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| TAYLOR, Douglas ACTIVE | Director | 19 Jun 2024 | | United Kingdom | December 1963 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| FRANK, Elizabeth RESIGNED | Secretary | 23 Jun 1999 | 31 Dec 2000 | | | Roman River House, Church Road, Fingringhoe, Essex, CO5 7BN |
| HODGKIN, Rachel Vanessa RESIGNED | Secretary | | 08 Dec 1992 | | | 254 Alexandra Park Road, London, N22 7BG |
| KLABER, Mary Clare, Dr RESIGNED | Secretary | 01 Mar 2001 | 28 Jun 2002 | | | Cuckoos Farm, Little Baddow, Chelmsford, Essex, CM3 4BN |
| MILLAR, David RESIGNED | Secretary | 26 Jun 2002 | 18 Nov 2009 | | | 23 The Avenue, Great Dunmow, Essex, CM6 1BQ |
| WATT, Robert Arthur RESIGNED | Secretary | 31 Jan 1996 | 23 Jun 1999 | | | 80 Holly Way, Elmstead, Colchester, Essex, CO7 7YQ |
| WYLD, Nicola Janet Althea RESIGNED | Secretary | 08 Dec 1992 | 31 Jan 1996 | | | 108 Clarence Road, St Albans, Hertfordshire, AL1 4NQ |
| AITKEN, Robert George Seymour RESIGNED | Director | 25 Jan 2012 | 26 Jun 2019 | England | June 1953 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE, England |
| ALLEN, Justin, Dr RESIGNED | Director | 01 Apr 2006 | 27 Nov 2010 | England | December 1945 | Lucia, Duke Street, Hintlesham, Suffolk, IP8 3QP |
| ASHURST, Stewart RESIGNED | Director | 22 Apr 2006 | 17 May 2007 | | May 1945 | Oaklands Lodge Valletta Close, Chelmsford, Essex, CM1 2PT |
| BHATTI, Veena RESIGNED | Director | 02 Jul 1997 | 01 Jan 1998 | | July 1967 | 47 Fourth Avenue, Chelmsford, CM1 4EZ |
| BISHOP, Samantha Jane Elisabeth, Dr RESIGNED | Director | 23 Sep 2010 | 16 Mar 2011 | United Kingdom | February 1964 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| BOYD, David Martin RESIGNED | Director | | 08 Dec 1993 | | September 1956 | 22 Hanover Road, London, NW10 3DS |
| BROWN, Christopher Freddie Alan RESIGNED | Director | 22 Nov 2017 | 16 Jun 2022 | England | September 1979 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| CARR, Robert John RESIGNED | Director | 29 Jun 2011 | 19 Sep 2013 | United Kingdom | December 1959 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| CLIFTON, John RESIGNED | Director | 22 Apr 2006 | 02 Jun 2010 | England | June 1948 | 19 All Saints Avenue, Colchester, Essex, CO3 4NZ |
| DALY, Christine Mary RESIGNED | Director | 27 Jan 2010 | 16 Mar 2011 | United Kingdom | June 1947 | 42, Woodrolfe Park, Tollesbury, Maldon, Essex, CM9 8TB, United Kingdom |
| DAWSON, Celia Anne RESIGNED | Director | 16 May 2007 | 03 Jun 2015 | England | September 1959 | Lindon House, 17 Marennes Crescent, Brightlingsea, Essex, CO7 0RX, United Kingdom |
| FALSHAW, Louise, Dr RESIGNED | Director | 23 Jan 2019 | 13 Jan 2020 | England | March 1972 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| FEVER, Fred James RESIGNED | Director | 28 Jul 1992 | 08 Dec 1993 | | June 1964 | 16a Oregon Avenue, Manor Park, London, E12 5JE |
| FORTUNE, Judith Ann RESIGNED | Director | 25 Jan 2012 | 15 Jul 2013 | England | May 1952 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| FRANK, Elizabeth RESIGNED | Director | 01 Jan 1996 | 31 Dec 2000 | | July 1968 | Roman River House, Church Road, Fingringhoe, Essex, CO5 7BN |
| FRANK, Mary Rosomond RESIGNED | Director | 01 Jan 1996 | 28 Nov 2006 | United Kingdom | November 1935 | 1 Victoria Road, Colchester, Essex, CO3 3NT |
| GLADWIN, Lydia Elizabeth Adam RESIGNED | Director | 01 Apr 2006 | 14 Nov 2011 | United Kingdom | October 1939 | 131a, Marford Road, Wheathampstead, St Albans, AL4 8NH |
| GORE, William Hornby RESIGNED | Director | 23 Mar 1996 | 01 Sep 2013 | England | March 1944 | Pointwell Mill Pointwell Lane, Coggeshall, Colchester, CO6 1RH |
| HALL, Samantha Elizabeth RESIGNED | Director | | 10 Feb 1992 | | July 1971 | 117 Bush Hill, Northampton, Northamptonshire, NN3 2PF |
| HAMILTON, Carolyn Paula RESIGNED | Director | 17 Mar 1994 | 16 Feb 1996 | | November 1951 | 13 Lexden Road, Colchester, Essex, CO3 3PL |
| HOMDEN, Carol Ann, Dr RESIGNED | Director | 01 Sep 2011 | 06 Sep 2018 | England | April 1960 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE, England |
| ISOM, Rachel Clare RESIGNED | Director | 28 Jul 1992 | 08 Dec 1993 | | September 1974 | 5 Carisbrooke Crescent, Trowbridge, Wiltshire, BA14 7PA |
| JORDAN, Leonie RESIGNED | Director | 17 Mar 1994 | 01 Oct 1995 | | August 1951 | 34 Fairfield Road, Crouch End, London, N8 9HG |
| KELLY, Elizabeth Maria Theresa RESIGNED | Director | | 27 Oct 1992 | | October 1951 | 14 Patricia Road, Norwich, Norfolk, NR1 2PE |
| KLABER, Mary Clare, Dr RESIGNED | Director | 01 Mar 2001 | 01 Jun 2005 | | December 1947 | Cuckoos Farm, Little Baddow, Chelmsford, Essex, CM3 4BN |
| KURTZ, Zarrina RESIGNED | Director | | 08 Dec 1993 | | November 1939 | 13 Milborne Grove, London, SW10 9SN |
| LANDMAN, Todd RESIGNED | Director | 28 Jul 2003 | 09 Mar 2005 | | March 1966 | Hillside Cottage, 21 Queens Road, Wivenhoe, Colchester, Essex, CO7 9JJ |
| LILY, Hannah RESIGNED | Director | 23 Sep 2010 | 07 Jun 2011 | United Kingdom | August 1977 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| LING-WILLIAMS, Victoria Maria Theresa RESIGNED | Director | 05 Mar 2014 | 06 Dec 2018 | England | May 1956 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE, England |
| LOWTON, Alison Jane RESIGNED | Director | 21 Sep 2011 | 26 Jun 2019 | England | January 1952 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE, England |
| LUDLOW, Caroline Mary, Her Honour RESIGNED | Director | 26 Jun 2002 | 18 Nov 2009 | United Kingdom | September 1947 | High Lodge, Station Road, Hadleigh, Ipswich, Suffolk, IP7 5HY |
| MILLAR, David RESIGNED | Director | 01 Jul 2000 | 18 Nov 2009 | | January 1945 | 23 The Avenue, Great Dunmow, Essex, CM6 1BQ |
| MOSS, Mary Josephine Muriel Catherine RESIGNED | Director | | 01 Oct 1994 | England | January 1969 | 32 Tonbridge Houses, London, WC1H 9PB |
| NORDON BARCH, John Howard RESIGNED | Director | 05 Mar 2014 | 27 Sep 2018 | England | June 1971 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE, England |
| PALMER, Elizabeth RESIGNED | Director | 22 Apr 2006 | 18 Jun 2010 | | September 1945 | 11, Roddam Close, Colchester, Essex, CO3 3UN |
| RICE, Anstey RESIGNED | Director | | 24 Mar 1992 | | September 1949 | 18 Studholme Street, Peckham, London, SE15 1DD |
| RICHARDS, James Manson RESIGNED | Director | 17 Mar 1994 | 01 May 1995 | | October 1941 | 73 Heston Avenue, Heston, Hounslow, Middlesex, TW5 9EU |
| RIMINGTON, Helen Clare RESIGNED | Director | 17 May 2011 | 14 Apr 2016 | United Kingdom | August 1958 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE, England |
| ROCHE, Jeremy RESIGNED | Director | | 25 Nov 1994 | | July 1952 | 25 Ashley Road, London, N19 3AG |
| SCHRUT, Judith RESIGNED | Director | 17 Mar 1994 | 01 May 1995 | United Kingdom | June 1953 | 1 Brent Way, London, N3 1AJ |
| SEHMI, Kawaldip Singh RESIGNED | Director | 20 Feb 2012 | 23 Aug 2013 | England | September 1960 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| SHAH, Smita RESIGNED | Director | 23 Sep 2010 | 12 Apr 2011 | England | April 1976 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| SILVERWOOD COPE, Elizabeth Janet RESIGNED | Director | 16 Feb 1996 | 01 Feb 2006 | | March 1948 | 8 Cambridge Road, Colchester, Essex, CO3 3NS |
| SMITH, Martyn Robert RESIGNED | Director | 14 Apr 2016 | 01 Apr 2017 | England | May 1955 | Riverside Office Centre Century House, North, North Station Road, Colchester, CO1 1RE |
| SMITH-JEFFERYS, Kerry Frances RESIGNED | Director | 14 Apr 2016 | 17 Sep 2024 | England | May 1975 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| STORER, Carol Anne RESIGNED | Director | 23 Jan 2019 | 03 Dec 2024 | England | September 1959 | Wellington House, 4th Floor, 90-92 Butt Road, Colchester, Essex, CO3 3DA, England |
| TEMPLE, Christine Margaret, Professor RESIGNED | Director | 01 Jul 2003 | 04 Jan 2011 | England | July 1958 | Hunters Lodge, Alresford Road, Wivenhoe, Colchester, Essex, CO7 9JU |
| VICKERS, Sharon RESIGNED | Director | 23 Sep 2010 | 21 Sep 2011 | United Kingdom | March 1970 | University Of Essex, Wivenhoe Park, Colchester Essex, CO4 3SQ |
| WATT, Robert Arthur RESIGNED | Director | 26 Jun 2002 | 01 Jun 2005 | | August 1953 | 80 Holly Way, Elmstead, Colchester, Essex, CO7 7YQ |
| WATT, Robert Arthur RESIGNED | Director | 01 Apr 1996 | 23 Jun 1999 | | August 1953 | 80 Holly Way, Elmstead, Colchester, Essex, CO7 7YQ |
| WORRELL, Marcia Lorraine RESIGNED | Director | | 25 Nov 1994 | | March 1966 | 37 Repton Road, Kenton, Harrow, Middlesex, HA3 9QD |