| Adam Charles Little | Director | 1 Jul 2003 | 1 Jul 2007 | British | 75 years |
| Aderemi Ladega | Secretary | 11 Apr 2005 | 30 Jun 2010 | British | - |
| Andrea Margaret Thomas | Secretary | 1 Sept 1997 | 11 Apr 2005 | Other | - |
| Brian Peevor | Secretary | 1 Apr 1994 | 31 Aug 1997 | British | - |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| David Alan Rider | Director | 6 Oct 2014 | 30 Nov 2020 | British | 62 years |
| Douglas Patrick Chapman | Director | 17 Jul 1992 | 31 Mar 1994 | British | 76 years |
| Douglas Patrick Chapman | Director | 23 May 1997 | 1 Feb 2003 | British | 76 years |
| Francis William Michael Starkie | Director | 1 Apr 1994 | 30 Sept 2009 | British | 77 years |
| James Grant Nemeth | Director | 1 Feb 2003 | 30 Dec 2004 | Us Citizen | 69 years |
| John Harold Bartlett | Director | 10 Oct 2011 | 31 Dec 2017 | British | 73 years |
| Julian John Watts | Director | 21 Dec 1994 | 23 May 1997 | New Zealand | 87 years |
| Julian John Watts | Secretary | 16 Apr 1992 | 31 Mar 1994 | New Zealand | - |
| Kathryn Mary Berry | Director | 30 Nov 2020 | 15 Oct 2025 | British | 59 years |
| Mark Traill Bentley | Director | 16 Apr 1992 | 17 Jul 1992 | British | 91 years |
| Richard Charles Grayson | Director | 16 Apr 1992 | 21 Dec 1994 | British | 85 years |
| Robert Carl Fearnley | Director | 1 Jul 2007 | 10 Oct 2011 | British | 63 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 6 Oct 2014 | British | 60 years |
| Yasin Stanley Ali | Secretary | 19 Feb 2001 | 30 Jun 2010 | - | - |