| Alan Hagdrup | Director | 24 Jan 1992 | 12 Sept 1992 | British | 93 years |
| Alan James Murray | Director | 31 Mar 1997 | 1 Dec 2005 | British | 72 years |
| Andrew James Harrower Dougal | Director | 1 Jun 1995 | 14 May 2002 | British | 74 years |
| Anthony George Laurence Alexander | Director | 24 Jan 1992 | 30 Sept 1996 | British | 87 years |
| Anthony Ross Cotton | Director | 24 Jan 1992 | 30 Sept 1995 | British | 82 years |
| Benjamin John Guyatt | Director | 30 Dec 2009 | 1 Jun 2011 | British | 50 years |
| Brian Aliol Hellings | Director | 24 Jan 1993 | 30 Sept 1994 | British | 89 years |
| Carsten Matthias Wendt | Director | 1 Dec 2016 | 5 Jan 2022 | German | 49 years |
| Charles Harry Price | Director | 24 Jan 1993 | 31 Dec 1999 | Us Citizen | 94 years |
| Christian Leclercq | Director | 2 Jun 2008 | 31 Mar 2010 | Belgian | 60 years |
| Christopher Douglas Collins | Director | 24 Jan 1992 | 20 Apr 2005 | British | 85 years |
| Christopher George Francis Harding | Director | 24 Jan 1993 | 24 Feb 1997 | British | 86 years |
| David Howard Clarke | Director | 24 Jan 1992 | 14 May 1996 | Us Citizen | 84 years |
| David John Egan | Director | 1 Jun 2007 | 16 Jun 2008 | British | 58 years |
| David Jonathan Clarke | Director | 1 Jun 2011 | 1 Dec 2016 | British | 51 years |
| David Martin Hoare | Director | 10 May 2000 | 31 Jan 2003 | Australian | 88 years |
| David William Hardy | Director | 24 Jan 1993 | 25 Apr 2001 | British | 95 years |
| Derek Charles Bonham | Director | 24 Jan 1992 | 24 Feb 1997 | British | 82 years |
| Derek Norman Rosling | Director | 24 Jan 1993 | 17 May 1994 | British | 95 years |
| Graham Dransfield | Director | 22 Sept 1992 | 30 Jun 2008 | British | 74 years |
| Graham Dransfield | Secretary | 10 Dec 2007 | 30 Jun 2008 | British | - |
| James Edward Hanson | Director | 24 Jan 1993 | 31 Dec 1997 | British | 103 years |
| John George Raos | Director | 24 Jan 1993 | 31 May 1995 | Us Citizen | 86 years |
| John Michael Schubert | Director | 10 May 2000 | 15 May 2003 | Australian | 83 years |
| Jonathan Clive Nicholls | Director | 15 Jun 1998 | 1 Dec 2005 | English | 68 years |
| Jonathan Giles Ashley Azis | Director | 31 Mar 1997 | 30 Apr 1998 | British | 68 years |
| Jonathan Giles Ashley Azis | Secretary | 1 Sept 1995 | 31 Mar 1997 | British | - |
| Jonathan Scott-barrett | Director | 24 Jan 1993 | 19 Apr 2000 | British | 81 years |
| Kenneth Wilfred Baker | Director | 15 Jul 1992 | 14 Oct 2003 | British | 91 years |
| Martin Gibbeson Taylor | Director | 24 Jan 1993 | 30 Sept 1995 | British | 90 years |
| Nicholas Swift | Director | 1 Dec 2005 | 1 Jun 2007 | British | 61 years |
| Paul Derek Tunnacliffe | Secretary | 31 Mar 1997 | 10 Dec 2007 | British | - |
| Peter Joseph Harper | Director | 24 Jan 1993 | 30 Sept 1994 | British | 90 years |
| Richard Robert Gimmler | Director | 13 Jun 2008 | 30 Dec 2009 | British | 58 years |
| Robert William Hanson | Director | 22 Sept 1992 | 31 Dec 1997 | British | 65 years |
| Roger Thomas Virley Tyson | Secretary | 31 Jul 2008 | 10 Mar 2016 | British | - |
| Ruth Coulson | Director | 1 Dec 2005 | 20 Jun 2008 | Australian | 52 years |
| Seyda Pirinccioglu | Director | 19 Jul 2010 | 31 Aug 2013 | Turkish | 54 years |
| Sheila Valerie Noakes | Director | 1 Sept 2001 | 14 Oct 2003 | British | 76 years |
| Simon Lindley Keswick | Director | 24 Jan 1993 | 14 Oct 2003 | British | 83 years |
| Simon Neil Vivian | Director | 23 Dec 1998 | 30 Jun 2003 | British | 68 years |
| W Frank Blount | Director | 10 Mar 2000 | 14 Oct 2003 | American | 87 years |
| William Modest Landuyt | Director | 14 May 1992 | 30 Sept 1996 | Usa Citizen | 70 years |
| William Samuel Hugh Laidlaw | Director | 1 Oct 2003 | 14 Oct 2003 | British | 69 years |
| Yvette Monica Newbold | Secretary | 24 Jan 1992 | 31 Aug 1995 | British | - |