| Andrew Cossar | Secretary | 2 Aug 2014 | 29 Jun 2017 | - | - |
| Anthony John Adrian Ford | Director | 31 Oct 1992 | 1 Jan 1995 | British | 82 years |
| Caroline Jane Sellers | Secretary | 18 Mar 1999 | 2 Aug 2014 | British | - |
| Charles Peter Johnson | Director | 31 Oct 1992 | 12 Oct 2001 | British | 80 years |
| Christine Mary Tacon | Director | 10 May 2001 | 23 Dec 2011 | British | 67 years |
| Christopher Eric Melling | Director | 4 Dec 2001 | 19 Sept 2003 | British | 68 years |
| David Hugh Wellens | Director | 4 Dec 1998 | 5 Oct 2001 | British | 83 years |
| David James Hadden | Director | 1 Jan 1995 | 1 Mar 1998 | British | 71 years |
| David James Hadden | Secretary | 25 May 1995 | 2 Feb 1998 | British | - |
| David John Turner | Director | 22 Mar 1996 | 29 May 1998 | British | 81 years |
| Derek Barber | Director | 1 Jan 1995 | 29 May 1998 | British | 108 years |
| Edward Christopher Robinson | Director | 1 Jan 1995 | 8 Feb 1996 | British | 90 years |
| Fraser Eliot Marcus | Director | 7 Feb 1996 | 29 May 1998 | American British | 72 years |
| Ian Mighell Monks | Director | 2 Aug 2014 | 2 Aug 2014 | British | 66 years |
| Iliya William Blazic | Director | 2 Aug 2014 | 2 Aug 2014 | Australian | 58 years |
| James David Stevenson | Secretary | 29 May 1998 | 18 Mar 1999 | British | - |
| John Howard Pawlyn | Director | 31 Oct 1992 | 1 Jan 1995 | British | 89 years |
| John Kerr | Director | 31 Oct 1992 | 1 Jan 1995 | British | 87 years |
| John Paul Michael Parker | Director | 31 Oct 1992 | 1 Jan 1995 | British | 79 years |
| John Southern | Director | 8 Apr 2005 | 7 Mar 2007 | British | 65 years |
| Katherine Jane Jones | Director | 23 Dec 2011 | 1 Mar 2013 | British | 63 years |
| Keith David Rennie Alexander | Secretary | 31 Oct 1992 | 25 May 1995 | British | - |
| Malcolm Glen Mcallister | Director | 31 Oct 1992 | 8 May 2000 | British | 79 years |
| Martin Arthur Wilkinson | Director | 1 Jan 1995 | 8 Feb 1996 | British | 78 years |
| Michael Calvert | Director | 4 Dec 1998 | 30 Jun 2000 | British | 76 years |
| Michael Hamish Bichan | Director | 31 Oct 1992 | 1 Jan 1995 | British | 69 years |
| Michelle Mcnally | Director | 7 Mar 2007 | 2 Aug 2014 | British | 52 years |
| Michelle Mcnally | Director | 2 Aug 2014 | 19 Aug 2016 | British | 52 years |
| Patrick Thomas Gordon-duff-pennington | Director | 1 Jan 1995 | 8 Feb 1996 | British | 96 years |
| Peter John Pereira Gray | Director | 2 Aug 2014 | 2 Aug 2014 | British | 63 years |
| Richard Ian White | Director | 31 Oct 1992 | 31 Mar 1994 | British | 71 years |
| Richard Ian White | Director | 1 Jan 1995 | 8 Feb 1996 | British | 71 years |
| Robert Anthony Argyle | Director | 17 Aug 2015 | 28 Feb 2019 | British | 52 years |
| Simon Nicholas Jon Thackray | Secretary | 2 Feb 1998 | 29 May 1998 | British | - |
| Stephen Murray Allan | Director | 19 Sept 2003 | 8 Apr 2005 | British | 72 years |
| William Henry Proby | Director | 1 Jan 1995 | 8 Feb 1996 | British | 77 years |