| JONKER, Jan Willem ACTIVE | Secretary | 01 May 2018 | | | | 240, City Road, London, EC1V 2PR |
| JONKER, Jan Willem ACTIVE | Director | 08 Oct 2020 | | England | October 1968 | 240, City Road, London, EC1V 2PR |
| BOWDEN, Holly Patricia RESIGNED | Secretary | 27 Jan 2014 | 08 Sep 2017 | | | 240, City Road, London, EC1V 2PR, United Kingdom |
| CLUTTERHAM, Robin Mcintyre RESIGNED | Secretary | 15 Jul 1998 | 27 Nov 1998 | | | 11 West End Road, Ruislip, Middlesex, HA4 6JE |
| CONNOR, Norman RESIGNED | Secretary | 22 Feb 2001 | 01 Oct 2001 | | | 13 Andhurst Court, Coombe Lane West, Kingston Upon Thames, Surrey, KT2 7DX |
| POLSON, Richard Ian RESIGNED | Secretary | 01 Oct 2001 | 27 Jan 2014 | | | 7 Grosvenor Avenue, East Sheen, London, SW14 8BT |
| PRATT, Ivan Walter RESIGNED | Secretary | 02 Sep 1981 | 15 Jul 1998 | | | 34 Heathside, Weybridge, Surrey, KT13 9YJ |
| STEVENSON, James David RESIGNED | Secretary | 06 Apr 1999 | 22 Feb 2001 | | | Flat 33, 100 Drayton Park, London, N5 1NF |
| ASHBURN, Ann Margaret, Professor RESIGNED | Director | 15 Feb 1995 | 12 Sep 2000 | | September 1948 | 98 Church Road, Old Bishopstoke, Eastleigh, Hampshire, SO50 6DQ |
| ASHLEY MILLER, Michael, Doctor RESIGNED | Director | 11 Feb 2002 | 11 Jul 2006 | | December 1930 | 28 Fitzwarren Gardens, London, N19 3TP |
| ATKINSON, David, Sir RESIGNED | Director | 02 Sep 1981 | 31 Mar 1993 | | September 1924 | 39 Brim Hill, London, N2 0HA |
| BRAISBY, Helen Joyce RESIGNED | Director | 11 Feb 2002 | 06 Nov 2006 | | May 1946 | 2 Stanbridge Close, Banbury, Oxfordshire, OX16 0NR |
| CHGADLE, Eric, Sir RESIGNED | Director | 02 Sep 1981 | 25 Jan 1992 | | May 1908 | Old Church House, Fishpool Street, St Albans, Herts, AL3 4SB |
| COOKE, Patrick Joseph Dominic RESIGNED | Director | 30 Nov 1994 | 14 Feb 1996 | | August 1931 | 9 Blyths Wharf 68a Narrow Street, Limehouse, London, E14 8BP |
| EMPSON, Robert James RESIGNED | Director | 15 Mar 2014 | 08 Oct 2020 | England | February 1959 | 31, Sterndale Road, London, W14 0HT, England |
| GRAHAM, Peter Marsden RESIGNED | Director | 23 Jul 1992 | 30 Jan 1997 | | December 1921 | Hethercroft, Narcot Lane, Chalfont St Peter, Bucks, SL9 8TR |
| LUMSDEN, Peter James Scott RESIGNED | Director | 13 Jul 1995 | 11 Jul 2006 | United Kingdom | February 1929 | West Studdal Farm, West Studdal, Dover, Kent, CT15 5BJ |
| RUDD, Anthony George, Professor RESIGNED | Director | 17 Oct 2006 | 15 Mar 2014 | United Kingdom | June 1954 | 33 Newstead Way, London, SW19 5HR |
| WOOD, Charles Alan RESIGNED | Director | 23 Jul 1992 | 11 Feb 2002 | | December 1917 | 8 Lord Napier Place, London, N6 9UB |