| Anthony William Chawner Davey | Director | 26 Aug 1998 | 1 Apr 2003 | British | 93 years |
| Christopher Francis Gregory Girling | Director | 31 Aug 1992 | 1 Nov 1999 | British | 72 years |
| Christopher John Cundy | Director | 1 Nov 1999 | 13 Dec 2007 | British | 65 years |
| Eunice Ivy Payne | Secretary | 27 Jul 2012 | 25 Feb 2013 | - | - |
| Franco Martinelli | Director | 9 Jul 2010 | 17 Jun 2015 | British | 66 years |
| George Winston Cameron | Director | 31 Aug 1992 | 7 Aug 1998 | British | 82 years |
| Matthew Paul Jowett | Secretary | 3 May 2005 | 9 Jul 2010 | British | - |
| Michael John Docker | Director | 26 Aug 1998 | 30 Sept 2000 | British | 89 years |
| Michael Robert Etheridge | Director | 30 Sept 2000 | 31 Mar 2004 | British | 65 years |
| Michael Sedley Killingley | Director | 1 Apr 2003 | 31 Mar 2006 | British | 76 years |
| Paul John Lester | Director | 31 Mar 2006 | 9 Jul 2010 | British | 77 years |
| Peter Graham Dawes | Secretary | 1 Feb 1996 | 3 May 2005 | British | - |
| Philip James Harrison | Director | 13 Dec 2007 | 9 Jul 2010 | British | 65 years |
| Stewart David Shears | Secretary | 31 Aug 1992 | 1 Feb 1996 | British | - |
| Valerie Francine Anne Teller | Secretary | 9 Jul 2010 | 27 Jul 2012 | - | - |
| William Tame | Director | 9 Jul 2010 | 17 Dec 2014 | British | 72 years |