| Bruce Leonard Archer Dawes | Director | 6 Sept 1991 | 31 Mar 1998 | British | 84 years |
| Campbell Dermot Nelson Mason | Director | 11 Apr 2007 | 11 Dec 2009 | British Australian | 61 years |
| Francis Christopher Lewis | Director | 1 Feb 2010 | 30 Sept 2019 | British | 72 years |
| Graham John Wilkin | Director | 1 May 1997 | 30 Sept 1998 | British | 74 years |
| Graham John Wilkin | Secretary | 1 May 1997 | 30 Sept 1998 | British | - |
| Jeremy James Lennox Rickcord | Director | 1 Apr 1998 | 29 Jan 2004 | British | 75 years |
| John William Buckley | Director | 29 Jan 2004 | 25 Apr 2005 | Australian | 71 years |
| Michael Andrew Gibson | Director | 1 Oct 1998 | 31 Aug 2002 | British | 71 years |
| Michael Andrew Gibson | Secretary | 1 Oct 1998 | 31 Aug 2002 | British | - |
| Michael Anthony Perrier Cattell | Director | 6 Sept 1991 | 30 Apr 1997 | British | 87 years |
| Michael Anthony Perrier Cattell | Secretary | 6 Sept 1991 | 30 Apr 1997 | British | - |
| Mohammad Alhashimy | Secretary | 1 Apr 2016 | 19 Jul 2023 | - | - |
| Nicholas Paul Loader | Director | 25 Apr 2005 | 11 Jul 2023 | British | 64 years |
| Nicholas Paul Loader | Secretary | 25 Apr 2005 | 1 Apr 2016 | British | - |
| Patrick William Walters | Director | 1 Sept 2002 | 11 Apr 2007 | British | 60 years |
| Patrick William Walters | Secretary | 1 Sept 2002 | 25 Apr 2005 | British | - |