| Allan Collins | Director | 8 Apr 2008 | 31 May 2012 | British | 63 years |
| Brian John Norman D Arcy Clark | Director | 11 Jul 1997 | 8 Apr 2008 | British | 71 years |
| Brian John Norman D Arcy Clark | Secretary | 11 Jul 1997 | 31 Dec 1998 | British | - |
| Catherine Mary Hedley Campion | Director | N/A | 8 Jul 1997 | British | 62 years |
| Charles Ian Garner | Secretary | 1 Apr 1994 | 31 May 1996 | British | - |
| Charles Ian Garner | Secretary | 28 Jan 1997 | 8 Dec 2006 | British | - |
| David Lachlan Forbes | Director | 11 Jul 1997 | 8 Dec 2006 | British | 75 years |
| Karen Goodin | Director | 1 Jan 2002 | 13 Apr 2006 | British | 63 years |
| Matthias Ruhland | Director | N/A | 17 Jul 1997 | German | 62 years |
| Michaela Frances East | Secretary | 8 Dec 2006 | 12 Sept 2012 | British | - |
| Rupert Owen Sebag-montefiore | Director | 8 Dec 2006 | 15 Feb 2016 | British | 72 years |
| Sandra Rieppel | Director | N/A | 11 Jul 1997 | British | 81 years |
| Sandra Rieppel | Secretary | 1 Jun 1996 | 31 Dec 1998 | British | - |
| Timothy Ross Croft | Director | 8 Dec 2006 | 17 Jun 2014 | British | 64 years |
| Wilfrid Alexander Hardy | Secretary | N/A | 31 Mar 1994 | British | - |