| Andrew Kerr | Director | 13 Mar 2000 | 8 Nov 2002 | British | 68 years |
| Andrew Moss | Director | 31 Dec 2008 | 31 Dec 2022 | British | 62 years |
| Antonios Kassimiotis | Director | 1 May 2008 | 31 Dec 2022 | Australian | 59 years |
| Bernadette Clare Young | Secretary | 11 Dec 2000 | 6 Dec 2001 | British | - |
| Brendan Joseph Meehan | Director | 11 Dec 2006 | 1 May 2008 | British | 68 years |
| Brian John Hall | Director | 19 Dec 1997 | 13 Mar 2000 | British | 74 years |
| Brid Mary Meaney | Director | 31 Dec 2022 | 23 Aug 2024 | Irish | 52 years |
| Christopher David O'brien | Director | 22 Apr 1998 | 30 Nov 1999 | British | 75 years |
| David Graham | Director | 28 Sept 1992 | 1 Aug 1997 | British | 75 years |
| David John Morgan | Secretary | 17 Jun 1992 | 12 May 1997 | British | - |
| David Murray Heather | Director | 26 Apr 1992 | 28 Sept 1993 | British | 85 years |
| David Ronald Parry | Director | 26 Apr 1992 | 22 Apr 1998 | British | 89 years |
| Donald Shore | Director | 26 Apr 1992 | 30 Apr 1998 | British | 79 years |
| George Stephan Pater | Director | 22 Apr 1998 | 31 Oct 2002 | British | 75 years |
| Heather Gwendolyn Brierley | Secretary | 15 Sept 2000 | 11 Dec 2000 | British | - |
| Jacqueline Elizabeth Fox | Secretary | 17 Jul 2002 | 30 Sept 2004 | British | - |
| James Edward Hughes | Secretary | 26 Apr 1992 | 17 Jun 1992 | 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 | - |
| Jill Carnie | Director | 13 Mar 2000 | 30 Jun 2001 | British | 69 years |
| John Hilton Berg | Secretary | 1 Jul 1998 | 15 Sept 2000 | British | - |
| John Joseph Keane | Director | 13 Mar 2000 | 31 Aug 2002 | Irish | 60 years |
| John Rodney Kent Connold | Director | 12 Jun 1998 | 31 Dec 1998 | British | 82 years |
| John Sidwell | Director | 1 Oct 1993 | 5 Aug 1996 | British | 73 years |
| Julian Christopher Hance | Director | 11 Nov 1996 | 23 Apr 1998 | British | 71 years |
| Melvin White | Director | 26 Apr 1992 | 21 Apr 1998 | British | 89 years |
| Mike Warr | Director | 13 Mar 2000 | 31 Oct 2002 | British | 69 years |
| Mohammed Iqbal | Director | 26 Apr 1992 | 31 Aug 1996 | British | 81 years |
| Nick Criticos | Director | 22 Apr 1998 | 13 Mar 2000 | South African | 84 years |
| Non-destructive Testers Limited | Corporate Director | 8 Nov 2002 | 30 Sept 2004 | United Kingdom | - |
| Philip Stephen Egan | Director | 13 Mar 2000 | 8 Nov 2002 | British | 69 years |
| Richard Anthony Eves | Secretary | 13 May 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 | 11 Dec 2006 | British | 70 years |
| Roger Craine | Director | 30 Sept 2004 | 11 Dec 2006 | British | 70 years |
| Ronald Calver | Director | 17 Jun 1994 | 13 Mar 2000 | British | 81 years |
| Roysun Limited | Corporate Director | 27 Jul 2004 | 30 Sept 2004 | United Kingdom | - |
| Samantha Rose Buckle | Director | 31 Dec 2022 | 6 Dec 2024 | British | 51 years |
| Vanessa Jones | Secretary | 6 Dec 2001 | 26 Apr 2002 | British | - |
| Wadham St John Downing | Director | 11 Dec 2006 | 19 Dec 2008 | British | 59 years |
| William John Bradburn | Director | 13 Mar 2000 | 30 Sept 2002 | British | 75 years |