| Alan Robert Staff | Director | 4 Aug 1991 | 31 Mar 2001 | British | 91 years |
| Alfred Graham Raper | Director | 8 Jun 1995 | 12 Nov 2001 | British | 94 years |
| Andrew Bunney | Director | 6 Sept 2001 | 4 Sept 2003 | British | 69 years |
| Andrew Ferguson Given | Director | 5 Sept 2002 | 9 Jul 2010 | British | 79 years |
| Anthony Leale Dorey | Director | 4 Aug 1991 | 3 Jul 1998 | British | 99 years |
| Christopher Francis Gregory Girling | Director | 4 Aug 1991 | 1 Nov 1999 | British | 72 years |
| Christopher John Bentley | Director | 3 Feb 1997 | 13 Nov 1997 | British | 79 years |
| Christopher John Cundy | Director | 8 Sept 1999 | 9 Jul 2010 | British | 65 years |
| Christopher John Rickard | Director | 3 Jul 2006 | 23 Apr 2007 | British | 70 years |
| David Allan Thorpe | Director | 31 Jan 2003 | 12 May 2008 | British | 77 years |
| David Martin Barclay | Director | 19 May 2003 | 9 Jul 2010 | British | 72 years |
| Franco Martinelli | Director | 9 Jul 2010 | 30 Nov 2020 | British | 66 years |
| George Winston Cameron | Director | 4 Aug 1991 | 23 Jan 2004 | British | 82 years |
| Iain Stuart Urquhart | Director | 17 Dec 2014 | 31 May 2022 | British | 61 years |
| Ian Paul Tyler | Director | 12 May 2008 | 9 Jul 2010 | British | 66 years |
| John Cunningham Kirkwood Slater | Director | 16 Jul 1999 | 28 Jul 2004 | British | 88 years |
| John Reginald Wells | Director | 4 Aug 1991 | 10 Jan 1994 | British | 101 years |
| John Wakeham | Director | 8 Jun 1995 | 5 Jul 2003 | British | 94 years |
| Martin Jay | Director | 4 Aug 1991 | 5 Jul 2005 | British | 87 years |
| Matthew Paul Jowett | Secretary | 3 May 2005 | 9 Jul 2010 | British | - |
| Michael Cecil Boyce | Director | 28 Jul 2004 | 9 Jul 2010 | British | 83 years |
| Michael Makepeace Eugene Jeffries | Director | 16 May 2005 | 9 Jul 2010 | British | 82 years |
| Nicholas James William Borrett | Secretary | 27 Jul 2012 | 25 Feb 2013 | - | - |
| Norman Frank Baldock | Director | 4 Aug 1991 | 6 Jul 2001 | British | 95 years |
| Paul John Lester | Director | 16 Nov 1998 | 9 Jul 2010 | British | 77 years |
| Peter Graham Dawes | Secretary | 1 Feb 1996 | 3 May 2005 | British | - |
| Peter John Mcintosh | Director | 22 Jan 2008 | 30 Jul 2009 | British | 68 years |
| Peter Mcintosh | Director | 4 Sept 2003 | 31 Jan 2006 | British | 68 years |
| Peter Usher | Director | 4 Aug 1991 | 7 Jul 1995 | British | 100 years |
| Philip James Harrison | Director | 19 Nov 2007 | 9 Jul 2010 | British | 65 years |
| Richard William Taylor | Director | 4 Aug 1991 | 28 Jul 2004 | British | 81 years |
| Robert Charles Finch Hill | Director | 18 Apr 1995 | 2 Jul 1999 | British | 89 years |
| Roy Joseph Withers | Director | 4 Aug 1991 | 5 Jul 1996 | British | 102 years |
| Shaun Doherty | Director | 31 May 2022 | 30 Sept 2024 | British | 58 years |
| Simon Edward Tarrant | Director | 8 Sept 1999 | 31 Mar 2007 | British | 74 years |
| Stewart David Shears | Secretary | 4 Aug 1991 | 1 Feb 1996 | British | - |
| Terence Harrison | Director | 10 Jan 1994 | 25 May 1994 | British | 93 years |
| Terence John Madden | Director | 18 Sept 1997 | 9 Aug 2004 | British | 77 years |
| Tessa Ann Vosper Blackstone | Director | 27 Jan 2004 | 9 Jul 2010 | British | 84 years |
| Valerie Francine Anne Teller | Secretary | 9 Jul 2010 | 27 Jul 2012 | - | - |
| William Tame | Director | 9 Jul 2010 | 17 Dec 2014 | British | 72 years |