| Ann Juliet Bateman Simon | Director | 8 Feb 2006 | 31 Oct 2011 | British | 73 years |
| Ann Juliet Bateman Simon | Secretary | 8 Feb 2006 | 31 Oct 2011 | British | - |
| Beverley Myers | Secretary | 14 Mar 2001 | 20 Sept 2002 | British | - |
| Frank Matthew Sunderland Hall | Director | 25 Apr 2012 | 25 Jun 2015 | Australian | 66 years |
| Gavin Lucius Troughton | Director | 20 Sept 2002 | 25 Sept 2017 | British | 60 years |
| Guy Jonathan Mccarthy | Nominee Director | 14 Mar 2001 | 29 Dec 2003 | British | 64 years |
| Hartwig Aulig Ingwersen | Director | 20 Sept 2002 | 7 Jan 2004 | German | 81 years |
| Helen Patricia Barrett Hague | Secretary | 20 Sept 2002 | 25 Mar 2003 | British | - |
| Helen Patricia Barrett Hague | Secretary | 2 Apr 2004 | 8 Feb 2006 | British | - |
| Martin John Frost | Nominee Director | 14 Mar 2001 | 20 Sept 2002 | British | 63 years |
| Rachel Christine Greenhalgh | Secretary | 25 Mar 2003 | 2 Apr 2004 | British | - |
| Robert Martin Pettigrew | Director | 20 Sept 2002 | 29 Dec 2003 | British | 82 years |
| Stuart Paul Hendry | Director | 20 Sept 2002 | 26 Feb 2014 | British | 63 years |
| Wolfgang Rencken | Director | 26 Feb 2014 | 19 Oct 2017 | German | 61 years |