| LANDES, Howard Ralph ACTIVE | Secretary | 30 Sep 2019 | | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| KIRK, Philip Andrew ACTIVE | Director | 30 Sep 2019 | | England | May 1966 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| OSBORNE, Andrew Jon ACTIVE | Director | 30 Sep 2019 | | United Kingdom | November 1969 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| COLLINS, Derryl Lynn RESIGNED | Secretary | 03 Nov 2000 | 11 Nov 2002 | | | 18 Montagu Court, 27-29 Montagu Square, London, W1H 1RE |
| COOK, Thomas Edward RESIGNED | Secretary | 11 Nov 2002 | 20 Oct 2003 | | | Kinross, 3 Manor Lane, Gerrards Cross, Buckinghamshire, SL9 9NH |
| EDWARDS, Christopher James RESIGNED | Secretary | 15 Mar 1999 | 03 Nov 2000 | | | 39 Blandford Road, London, W4 1DX |
| GRIMSHAW, David RESIGNED | Secretary | 30 Apr 2012 | 30 Sep 2019 | | | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| PEPIN, Jean-Francois Jacques Basile RESIGNED | Secretary | 13 May 2013 | 14 Aug 2014 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| SWALLOW, Richard Philipson Barber RESIGNED | Secretary | 23 Sep 2002 | 05 Apr 2009 | | | 11 Wilkins Close, Barford, Warwickshire, CV35 8EX |
| SWALLOW, Richard Philipson Barber RESIGNED | Secretary | | 15 Mar 1999 | | | 11 Wilkins Close, Barford, Warwickshire, CV35 8EX |
| WHITE, Ruth Maretta RESIGNED | Secretary | 01 Aug 2001 | 30 Apr 2012 | | | Portman House, 2 Portman Street, London, W1H 6DU |
| ANDERSON, Robert Hendry RESIGNED | Director | 19 Apr 2012 | 13 May 2013 | Scotland | October 1956 | Portman House, 2 Portman Street, London, W1H 6DU |
| ARMISTEAD, George Huvelle RESIGNED | Director | 22 Feb 2002 | 15 Jul 2004 | | February 1946 | Rose Bank, Burrow Hill, Pirbright, Woking, Surrey, GU24 0JS |
| BLAKEMORE, David Robert RESIGNED | Director | 25 Oct 1991 | 21 Sep 1992 | | December 1954 | 6 Roundwood Close, Welwyn Garden City, AL8 7JZ |
| BURNS, David Brian RESIGNED | Director | 10 Dec 1996 | 15 Mar 1999 | England | October 1945 | Rookery Cottage, Main Street, Church Lench, Worcestershire, WR11 4UE |
| CALDWELL, Robert George RESIGNED | Director | 15 Mar 1999 | 22 Feb 2002 | | September 1947 | 10 Cloverhill Avenue, Drumahoe, Londonderry, BT47 3SH |
| CHENIER, David Eric RESIGNED | Director | 19 Apr 2012 | 01 Aug 2015 | Scotland | January 1962 | Portman House, 2 Portman Street, London, W1H 6DU |
| CLARK, Alistair William RESIGNED | Director | | 25 Oct 1991 | | June 1944 | 7 Harewood Close, Reigate, London, RH2 0SHE |
| COLEMAN, Leo Arthur RESIGNED | Director | 25 Oct 1991 | 04 Jul 1997 | | March 1941 | 38 White Rose Lane, Woking, Surrey, GU22 7LB |
| EVANS, Barry RESIGNED | Director | 01 Jan 1994 | 12 Jan 1999 | | November 1948 | 47 Links Way, Croxley Green, Rickmansworth, Hertfordshire, WD3 3RH |
| GRANT, John Alexander RESIGNED | Director | 04 Jul 1997 | 15 Mar 1999 | England | December 1948 | 72 Stoneleigh Road, Solihull, West Midlands, B91 1DJ |
| GRANT, John Alexander RESIGNED | Director | | 25 Oct 1991 | | December 1948 | 4 Bencombe Road, Purley, Surrey, CR8 4DQ |
| HASTINGS, Andrew David Richard RESIGNED | Director | 19 Apr 2012 | 15 Jun 2018 | Scotland | February 1961 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| HAVERS, William Percival RESIGNED | Director | | 14 Oct 1991 | | November 1928 | Watersgreen Westaway Drive, Hakin, Milford Haven, Dyfed, SA73 3EQ |
| JONES, Richard Aled RESIGNED | Director | 01 Feb 1998 | 12 Jan 1999 | | February 1949 | 38 Alexandra Court, Keele Close, Watford, Hertfordshire, WD1 1AS |
| KING, Terri Gay RESIGNED | Director | 05 Jan 2017 | 30 Sep 2019 | United Kingdom | March 1961 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| LINGARD, Stephen Gerald William RESIGNED | Director | 12 Feb 2009 | 30 Apr 2012 | | July 1962 | Portman House, 2 Portman Street, London, W1H 6DU |
| LOCKLEY, Martin Chilton RESIGNED | Director | 21 Sep 1992 | 02 Feb 1994 | | June 1956 | 26 Sullivan Road, Tonbridge, Kent, TN10 4DD |
| MACKLON, Dominic Edward RESIGNED | Director | 01 Aug 2015 | 05 Jan 2017 | Scotland | April 1969 | Portman House, 2 Portman Street, London, W1H 6DU |
| MILLS, Brian Edward RESIGNED | Director | | 01 Feb 1998 | | March 1940 | 31 Flora Thompson Drive, Newport Pagnell, Buckinghamshire, MK16 8SP |
| POULTER, Carole Watts RESIGNED | Director | 22 Feb 2002 | 15 Jul 2004 | | May 1960 | Pens Place, Lower Pound Lane, Marlow, Buckinghamshire, SL7 2AE |
| ROBERTS, Andrew David RESIGNED | Director | 02 Feb 1994 | 10 Dec 1996 | | May 1960 | 40 High Street, Warwick, Warwickshire, CV34 4AX |
| RODEN, Norman Gayle RESIGNED | Director | | 25 Oct 1991 | | March 1937 | 25 St Georges Court, London, SW7 4QZ |
| SCOTT, Russell RESIGNED | Director | 25 Sep 2018 | 30 Sep 2019 | Scotland | September 1973 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| SIMPSON, Katherine Susan RESIGNED | Director | 15 Jun 2018 | 22 May 2019 | United Kingdom | October 1961 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| STALKER, Ross Graham RESIGNED | Director | 31 Oct 2015 | 25 Sep 2018 | United Kingdom | October 1964 | 20th Floor, 1 Angel Court, London, EC2R 7HJ, England |
| STALKER, Ross Graham RESIGNED | Director | 22 Dec 2004 | 12 Feb 2009 | | October 1964 | Thornley Lodge 9 Smithfield, North Thoresby, Lincolnshire, DN36 5RU |
| STEVENS, Duncan John RESIGNED | Director | 15 Mar 1999 | 23 Feb 2001 | England | August 1959 | Little St Leonards, Blackmore Road Fryerning, Ingatestone, Essex, CM4 0NP |
| SVANBERG, Nils Ingve RESIGNED | Director | 15 Mar 1999 | 21 Sep 2000 | | July 1958 | 34 Knights Park, Kingston Upon Thames, Surrey, KT1 2QN |
| TETLOW, Jeffrey Howard RESIGNED | Director | 21 Sep 2000 | 22 Dec 2004 | England | March 1946 | 18 Sydenham Hill, London, SE26 6SR |
| THOMPSON, Derek Charles RESIGNED | Director | | 31 Dec 1993 | | July 1934 | 7 Ash Road, Tring, Hertfordshire, HP23 4JB |
| WELLS, Adrian Peter RESIGNED | Director | 15 Jul 2004 | 30 Apr 2012 | | March 1950 | Portman House, 2 Portman Street, London, W1H 6DU |
| WOLFE, Patrick RESIGNED | Director | 22 May 2019 | 30 Sep 2019 | Scotland | February 1963 | Brettenham House, Lancaster Place, London, WC2E 7EN, England |
| WRIGHT, Michael Don RESIGNED | Director | 13 May 2013 | 29 Oct 2015 | Scotland | May 1964 | Portman House, 2 Portman Street, London, W1H 6DU |