| Adrian Perry | Director | 24 Mar 2014 | 13 Nov 2018 | British | 67 years |
| Alan Oliver Geere | Director | 1 Jan 2009 | 1 Feb 2012 | British | 71 years |
| Alexander Lindsay Davidson | Director | 28 Feb 1992 | 3 Sept 2001 | British | 80 years |
| Alexander William Leys | Director | 6 Oct 1999 | 21 Jan 2002 | British | 80 years |
| Amanda Hallworth | Director | 26 Jun 1998 | 29 Oct 1999 | British | 67 years |
| Andrew Peter Littlewood | Director | 1 Oct 1996 | 22 Sept 2000 | British | 78 years |
| Anthony Neville Dyer | Director | 28 Feb 1992 | 26 Jun 1993 | British | 97 years |
| Dale James Storrer | Director | 21 Mar 2005 | 24 Oct 2008 | British | 53 years |
| David Brian Hobden | Director | 6 Jul 2007 | 1 Feb 2012 | British | 52 years |
| Douglas John Neale | Director | 20 Jul 1992 | 30 Sept 1996 | British | 90 years |
| Elizabeth Paterson | Director | 23 Jul 2007 | 1 Feb 2012 | British | 60 years |
| Francis Michael Baldwin | Director | 5 Dec 2002 | 17 Mar 2006 | British | 69 years |
| Giles Maxwell Broadbent | Director | 5 Dec 2002 | 17 Mar 2006 | British | 61 years |
| Ian Grahame Park | Director | 28 Feb 1992 | 15 May 1995 | British | 91 years |
| Joanne Gowing | Director | 14 Jan 2000 | 5 Sept 2005 | British | 56 years |
| John Mccready | Director | 12 Apr 2007 | 19 Jun 2009 | British | 67 years |
| Kevin Joseph Beatty | Director | 3 Sept 2001 | 24 Aug 2004 | British | 69 years |
| Linn May Hughes | Director | 28 Feb 1992 | 29 May 1994 | British | 76 years |
| Martyn John Hindley | Director | 1 Feb 2005 | 24 Oct 2008 | British | 64 years |
| Michael John Saxton | Director | 28 Feb 1992 | 31 May 1995 | British | 91 years |
| Michael Paul Pelosi | Director | 15 May 1995 | 21 Mar 2011 | British | 73 years |
| Paul Godfrey Newman | Director | 28 Feb 1992 | 31 Mar 2005 | British | 83 years |
| Paul Kevin Michael Kearney | Director | 4 Mar 2002 | 1 Mar 2004 | British | 68 years |
| Paul Simon Collins | Director | 30 Dec 2012 | 24 Mar 2014 | English | 67 years |
| Paul Simon Collins | Secretary | 14 Oct 1996 | 24 Mar 2014 | British | - |
| Penny Caroline Keetch | Director | 18 Jan 1999 | 9 Apr 2009 | British | 69 years |
| Richard Alan Karn | Director | 1 Mar 2004 | 1 Feb 2012 | British | 59 years |
| Roger John Watkins | Director | 19 Sept 2005 | 12 Apr 2007 | British | 82 years |
| Roland Edmondson Glass | Secretary | 28 Feb 1992 | 11 Oct 1996 | British | - |
| Stephen Andrew Auckland | Director | 21 Mar 2011 | 30 Dec 2012 | British | 71 years |
| The Fourth Viscount Rothermere | Director | 1 Jun 1995 | 27 Mar 1997 | British | 59 years |
| Timothy Andrew Anthony David Randell | Director | 13 Jun 1994 | 26 Jun 1998 | British | 62 years |
| Timothy Richard Bishop | Director | 28 Feb 1992 | 17 Mar 2000 | British | 70 years |
| Vivian John Rowland Baring | Director | 28 Feb 1992 | 31 Mar 1992 | British | 76 years |
| William Maldwyn Stengel | Director | 28 Feb 1992 | 5 Jun 1992 | British | 70 years |