| Christopher Edward Milne Watson | Secretary | 21 Jan 2000 | 24 Nov 2003 | British | - |
| Gary Stephen Wilkes | Director | 31 Dec 2015 | 15 Sept 2017 | British | 68 years |
| Hamilton Maxwell Cruddas | Director | 9 Aug 2005 | 22 Sept 2006 | British | 74 years |
| Ian Gordon Stirling | Director | 22 Sept 2006 | 1 Aug 2013 | British | 69 years |
| Ian Johnson | Secretary | 24 Nov 2003 | 1 Sept 2010 | British | - |
| John Cecil Blythe | Director | 1 Aug 2013 | 31 Dec 2015 | British | 79 years |
| Philip William John Raven | Director | 4 Oct 2000 | 7 Feb 2005 | British | 75 years |
| Robert Muirhead Birnie Brown | Secretary | 1 Sept 2010 | 18 Dec 2015 | - | - |
| Steven Gordon Rowbottom | Director | 5 Jun 2000 | 27 Jan 2012 | British | 65 years |
| Trevor Mills Noble | Director | 19 May 2004 | 9 Aug 2005 | British | 80 years |
| William Edgar | Director | 21 Jan 2000 | 19 May 2004 | British | 88 years |