| CHAN, Wai Shing ACTIVE | Director | 20 Feb 2013 | | Hong Kong | September 1968 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| FENSKE, Roger, Dr ACTIVE | Director | 31 Dec 2019 | | United Kingdom | August 1978 | 2, Bain Square, Livingston, EH54 7DQ, Scotland |
| LO, Yat Keung ACTIVE | Director | 20 Feb 2013 | | Hong Kong | February 1959 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| COCHRANE, Karen Anne RESIGNED | Secretary | 27 Nov 2002 | 06 Aug 2004 | | | 21 Rothes Drive, Murieston, Livingston, West Lothian, EH54 9HR |
| DUNDAS, Martin William RESIGNED | Secretary | 20 Sep 2000 | 01 Dec 2000 | | | 41 Craiglockhart Drive South, Edinburgh, Lothian, EH14 1JD |
| GILLIGAN, Gerald RESIGNED | Secretary | 13 Aug 2004 | 09 Apr 2021 | | | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| SMITH, Gillian Anne RESIGNED | Secretary | 01 Dec 2000 | 27 Nov 2002 | | | 29d Gillespie Road, Edinburgh, Lothian, EH13 0NW |
| STEELE, Murray Alexander RESIGNED | Secretary | | 01 Apr 2000 | | | 36 Westgarth Avenue, Colinton, Edinburgh, Midlothian, EH13 0BD |
| BROUWERS, Mary Jane RESIGNED | Director | 03 Feb 2010 | 20 Feb 2013 | United Kingdom | March 1963 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| CHRISTMAS, Terence Michael, Dr RESIGNED | Director | 27 May 1999 | 06 Aug 1999 | | December 1944 | 6 Chapel Villas, Dalgety Bay, Fife, KY11 5UD |
| CLEPHANE, Gordon William RESIGNED | Director | 27 Nov 2002 | 20 Feb 2013 | United Kingdom | June 1952 | 16 Muir Wood Grove, Currie, Edinburgh, EH14 5HA |
| DENNIS, Richard Benson, Dr RESIGNED | Director | 03 Feb 2010 | 20 Feb 2013 | United Kingdom | July 1945 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| DENNIS, Richard Benson, Dr RESIGNED | Director | | 13 Feb 2006 | United Kingdom | July 1945 | St Leonards, 480 Lanark Road, Juniper Green Edinburgh, Lothian Scotland, EH14 5BL |
| ELLIOTT, Charles Thomas, Professor RESIGNED | Director | 01 Feb 1999 | 14 Feb 2001 | | January 1939 | Weardale, 8 Hall Green, Malvern, Worcestershire, WR14 3QX |
| FAICHNEY, Alan Kennedy RESIGNED | Director | 06 Jul 2010 | 20 Feb 2013 | Scotland | October 1955 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| GRIFFITHS, John Hugh RESIGNED | Director | 29 May 1995 | 01 Jan 2011 | United Kingdom | February 1932 | 32 The Chantry, Hillingdon, Uxbridge, Middlesex, UB8 3RA |
| IREDALE, Peter Julian, Dr RESIGNED | Director | 22 Jan 2003 | 09 Aug 2003 | United Kingdom | February 1956 | Mayfield House, Woodlands Road, Raydon, Suffolk, IP7 5LJ |
| KEDDIE, Jason RESIGNED | Director | 01 Apr 2005 | 11 Dec 2009 | Scotland | December 1969 | 179 Colinton Mains Road, Edinburgh, Midlothian, EH13 9BX |
| MCCARLIE, David James RESIGNED | Director | 15 May 2003 | 20 Feb 2013 | Scotland | January 1961 | 69 Nicol Place, The Briars, Broxburn, West Lothian, EH52 6GY |
| O'CONNOR, Christopher James RESIGNED | Director | 20 Feb 2013 | 31 Dec 2019 | England | September 1966 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| PEAKER, Malcolm, Professor RESIGNED | Director | 17 Mar 2004 | 19 Aug 2011 | United Kingdom | August 1943 | 13 Upper Crofts, Ayr, KA7 4QX |
| SHEPHERD, Frederick Alexander Bruce, Dr RESIGNED | Director | 01 Apr 2012 | 20 Feb 2013 | Scotland | November 1942 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| SINGH, Chanchal RESIGNED | Director | 20 Jan 2011 | 20 Feb 2013 | United Kingdom | October 1949 | Lake House, Market Hill, Royston, Hertfordshire, SG8 9JN, England |
| SMALL, John Rankin, Professor RESIGNED | Director | | 26 Nov 2003 | | February 1933 | 39 Caiystane Terrace, Edinburgh, Midlothian, EH10 6ST |
| SMITH, Gillian Anne RESIGNED | Director | | 20 Feb 2013 | United Kingdom | April 1932 | 29d Gillespie Road, Edinburgh, Lothian, EH13 0NW |
| SMITH, Stanley Desmond, Professor RESIGNED | Director | | 20 Feb 2013 | Scotland | March 1931 | 29d Gillespie Road, Colinton, Edinburgh, Midlothian, EH13 0NW |
| STEELE, Murray Alexander RESIGNED | Director | | 01 Apr 2000 | United Kingdom | October 1950 | 36 Westgarth Avenue, Colinton, Edinburgh, Midlothian, EH13 0BD |
| SULLIVAN, Karen Marina, Dr RESIGNED | Director | 30 Jan 2007 | 14 Oct 2008 | Scotland | October 1961 | Tay-Mar House, Flocklones Hamlet, Dundee, Angus, DD2 5LE |
| WILSON, Charles Ian RESIGNED | Director | | 20 Feb 2000 | | December 1936 | 6 Templeland Road, Corstorphine, Edinburgh, Midlothian, EH12 8RP |