| Bernadette Clare Young | Secretary | 15 Dec 2000 | 6 Dec 2001 | British | - |
| Christopher David O'brien | Director | 22 Apr 1998 | 30 Nov 1999 | British | 75 years |
| David James Miller | Director | 7 May 1992 | 19 Dec 1997 | British | 74 years |
| David Ronald Parry | Director | 19 Dec 1997 | 22 Apr 1998 | British | 89 years |
| Eric Roland Wills | Secretary | 7 May 1992 | 23 Apr 1997 | British | - |
| George Stephan Pater | Director | 22 Apr 1998 | 31 Oct 2002 | British | 75 years |
| Heather Gwendolyn Brierley | Secretary | 15 Sept 2000 | 15 Dec 2000 | British | - |
| Jacqueline Elizabeth Fox | Secretary | 17 Jul 2002 | 30 Sept 2004 | British | - |
| Jan Victor Miller | Director | 8 Nov 2002 | 30 Sept 2004 | British | 75 years |
| Jan Victor Miller | Secretary | 1 May 2002 | 17 Jul 2002 | British | - |
| Jennifer Jane Wilman | Secretary | 30 Sept 2004 | 1 Sept 2006 | British | - |
| John Hilton Berg | Secretary | 1 Jul 1998 | 15 Sept 2000 | British | - |
| John Joseph Keane | Director | 13 Mar 2000 | 31 Aug 2002 | Irish | 60 years |
| Julian Christopher Hance | Director | 19 Dec 1997 | 23 Apr 1998 | British | 71 years |
| Kerr Luscombe | Director | 18 Jul 2008 | 19 Dec 2008 | British | 61 years |
| Michael John Merrick | Director | 1 Jan 2008 | 2 Jun 2014 | British | 66 years |
| Non-destructive Testers Limited | Corporate Director | 8 Nov 2002 | 30 Sept 2004 | United Kingdom | - |
| Richard Anthony Eves | Secretary | 24 Apr 1997 | 1 Jul 1998 | British | - |
| Richard Edward Keith Greenfield | Director | 22 Apr 1998 | 8 Nov 2002 | British | 70 years |
| Richard Edward Keith Greenfield | Director | 30 Sept 2004 | 31 Dec 2007 | British | 70 years |
| Robert Paul Stockton | Director | 29 Mar 2007 | 18 Jul 2008 | British | 61 years |
| Roger Craine | Director | 30 Sept 2004 | 30 Apr 2007 | British | 70 years |
| Roysun Limited | Corporate Director | 27 Jul 2004 | 30 Sept 2004 | United Kingdom | - |
| Shamira Mohammed | Director | 2 Jun 2014 | 30 Sept 2017 | British | 58 years |
| Thomas Arthur Hayes | Director | 7 May 1992 | 19 Dec 1997 | British | 83 years |
| Thomas Scott Nelson | Director | 7 May 1992 | 19 Dec 1997 | British | 87 years |
| Vanessa Jones | Secretary | 6 Dec 2001 | 26 Apr 2002 | British | - |