| Andrew James Farquhar | Director | 9 Jan 2013 | 18 Jan 2013 | British | 59 years |
| Anne Patricia Munson | Secretary | 6 Dec 1994 | 21 Jul 2003 | British | - |
| Christopher Charles Shirtcliffe | Director | 10 Apr 1992 | 31 May 2002 | British | 82 years |
| David James Benwell Taylor Smith | Director | 15 Sept 2006 | 29 Sept 2012 | British | 65 years |
| Deborah Jane Taylor | Director | 19 May 2015 | 30 Jun 2016 | British | 56 years |
| Dinesh Michael Manuelpillai | Director | 14 Feb 2018 | 2 Nov 2018 | British | 43 years |
| Giovanni Nicholas Grosso | Director | 18 Jan 2013 | 19 May 2015 | British | 64 years |
| James Darnton | Director | 15 Sept 2006 | 7 Mar 2011 | British | 61 years |
| John Christopher James Hogan | Director | 19 Jan 2001 | 3 Jul 2003 | Irish | 65 years |
| Julian Mark Hartley | Director | 19 May 2015 | 14 Feb 2018 | British | 65 years |
| Leonard Keith Gateson | Secretary | 21 Jul 2003 | 21 Dec 2004 | British | - |
| Michael James Norton | Director | 16 Oct 2000 | 31 Dec 2002 | United Kingdom | 74 years |
| Nathan Richards | Director | 1 Oct 2012 | 28 Feb 2014 | British | 57 years |
| Nathan Richards | Secretary | 15 Sept 2006 | 28 Oct 2008 | British | - |
| Nicholas Charles Norton | Director | 16 Oct 2000 | 28 Mar 2002 | British | 69 years |
| Nicholas Peter Buckles | Director | 19 Jan 2001 | 15 Sept 2006 | British | 65 years |
| Nigel Edward Griffiths | Secretary | 10 Apr 1992 | 6 Dec 1994 | British | - |
| Peter Frederick Howard Towle | Director | 10 Apr 1992 | 1 Aug 1992 | British | 113 years |
| Roger Sydney William Hale Wiggs | Director | 10 Apr 1992 | 7 Jan 2002 | British | 87 years |
| Stephen Edward Lyell | Secretary | 21 Dec 2004 | 15 Sept 2006 | Other | - |
| Stephen Mark Lloyd Taylor | Director | 16 Oct 2000 | 30 Jun 2002 | British | 63 years |
| Stuart Edward Curl | Director | 7 Mar 2011 | 28 Feb 2014 | British | 65 years |
| Trevor Leslie Dighton | Director | 31 May 2002 | 15 Sept 2006 | British | 77 years |