| Albemarle John Cator | Director | 1 Feb 1993 | 16 Oct 1996 | British | 72 years |
| Alex Constandse | Director | 1 Apr 1994 | 1 Dec 1994 | British | 73 years |
| Alexis Edward Tobin | Director | 11 Oct 2010 | 21 Oct 2014 | Irish | 52 years |
| Alton Fernando Irby Iii | Director | 2 Mar 1998 | 13 May 1999 | American | 85 years |
| Andrea Alessandro Negri | Director | 1 Feb 1993 | 28 Sept 1993 | Italian | 80 years |
| Andrew John Pelling | Director | 14 Oct 1994 | 20 Oct 1995 | British | 66 years |
| Anthony Glyn William Buckland | Director | 1 Feb 1993 | 2 Mar 1994 | British | 73 years |
| Barbara Charlotte Wallace | Secretary | 5 Feb 2010 | 21 Sept 2011 | - | - |
| Brian John Crowe | Director | 14 Apr 2000 | 29 Oct 2008 | British | 68 years |
| Brian Shelton Berry | Director | 13 Sept 1993 | 8 Aug 1994 | British | 73 years |
| Bruce Bantz | Director | 27 Apr 1994 | 20 Oct 1995 | American | 76 years |
| Christine Anne Russell | Secretary | 21 Sept 2011 | 27 Jul 2012 | - | - |
| Christophe Lanson | Director | 2 Feb 1993 | 20 Oct 1995 | French | 59 years |
| Christopher David Barnes Kyle | Director | 14 Dec 2005 | 25 Apr 2007 | British | 60 years |
| Edward George Sherman | Director | 1 Apr 1994 | 20 Oct 1995 | Usa | 72 years |
| Fergus Richard Keating | Director | 20 Jul 2000 | 14 Apr 2006 | Irish | 64 years |
| Francis Amman | Director | 14 Oct 1994 | 20 Oct 1995 | British | 63 years |
| Frank Canelas Jnr | Director | 4 Sept 1997 | 30 Jun 2001 | American | 71 years |
| Garry Robin Southern | Director | 1 Feb 1993 | 21 Jun 1994 | British | 81 years |
| Gary John Tritton | Director | 1 Feb 1993 | 24 May 1994 | British | 67 years |
| Geoffrey Mark Hodge | Director | 28 Apr 1993 | 20 Oct 1995 | Australian | 63 years |
| Geoffrey Stanley Gray | Director | 1 Feb 1993 | 28 May 1993 | British | 76 years |
| Grant Cameron Johnson | Director | 1 Apr 1994 | 20 Oct 1995 | British | 71 years |
| Gregory Bigelow Bowes | Director | 6 Nov 1996 | 10 Sept 1998 | American | 64 years |
| Helen Susan Bradley | Director | 19 Mar 2007 | 18 Mar 2009 | British | 51 years |
| Ian David Gaskell | Director | 1 Apr 1994 | 20 Oct 1995 | British | 63 years |
| Ian Michael Merriman | Director | 18 Mar 2009 | 11 Oct 2010 | British | 63 years |
| Jan Valentine Mccourt | Director | 27 Jul 1993 | 2 Sept 1994 | British | 66 years |
| Janine Hilary Peake | Director | 18 Oct 1993 | 5 Apr 1994 | British | 67 years |
| Jean Francois Nguyen Phuoc Buu Loc | Director | 1 Feb 1993 | 23 Jun 1997 | French | 66 years |
| John Christiaan Hattingh | Director | 13 May 1993 | 14 Mar 1997 | British | 72 years |
| John David Howland-jackson | Director | 1 Apr 1993 | 25 Apr 1995 | British | 76 years |
| John Edward Goldthorpe | Director | 23 Oct 1997 | 14 Mar 2000 | British | 69 years |
| John Henry Edmund Wells | Director | 1 Apr 1994 | 20 Oct 1995 | British | 67 years |
| John Martin Owen | Director | 1 Feb 1993 | 6 Apr 1993 | United Kingdom | 79 years |
| John Roland Sanders | Director | 28 Oct 1993 | 20 Oct 1995 | British | 82 years |
| Jonathan Aubrey Lewis Boyd | Director | 1 Apr 1993 | 20 Oct 1995 | British | 69 years |
| Jonathan James Whiticar | Director | 1 Feb 1993 | 1 Jul 1994 | British | 75 years |
| Keith Peter Wiley | Director | 1 Feb 1993 | 31 Dec 1993 | British | 78 years |
| Kevin John Arnold | Director | 21 Apr 1994 | 20 Oct 1995 | British | 60 years |
| Kevin Michael Jameson | Director | 1 Apr 1993 | 2 Jun 1994 | British | 69 years |
| Konrad Rudolf Kruger | Director | 17 Mar 1997 | 4 Sept 1997 | American | 73 years |
| Lorraine May Blair | Secretary | 18 Nov 2005 | 1 Nov 2007 | British | - |
| Marcos Castro | Secretary | 2 Nov 2007 | 1 Aug 2008 | Other | - |
| Marina Louise Thomas | Secretary | 21 May 2004 | 18 Nov 2005 | British | - |
| Martin Stephen Jaskel | Director | 1 Feb 1993 | 14 Sept 1993 | British | 79 years |
| Mitchell Bennett Freinberg | Director | 15 Aug 1994 | 20 Oct 1995 | American | 74 years |
| Neil Dodgson | Director | 14 Oct 1994 | 20 Oct 1995 | British | 61 years |
| Neil Robert Pidgeon | Director | 10 Aug 1994 | 20 Oct 1995 | British | 64 years |
| Neil Stephen Coulbeck | Director | 17 Mar 1997 | 20 Jul 2000 | British | 73 years |
| Nicholas John Hughes | Director | 31 Dec 2016 | 11 Aug 2017 | British | 64 years |
| Nigel Webb | Director | 24 Aug 1998 | 2 Oct 1998 | British | 59 years |
| Paul Eugene Bartlett | Secretary | 18 Feb 1999 | 21 May 2004 | British | - |
| Philip Alfred Lotz | Director | 2 Jan 1997 | 24 Aug 1998 | American | 68 years |
| Philip John Augar | Director | 8 Jun 1994 | 10 Mar 1995 | British | 74 years |
| Philip John Surtees Wise | Director | 4 Apr 1995 | 31 Dec 1996 | British | 76 years |
| Richard Gordon Milne | Director | 3 Apr 1998 | 13 May 1999 | British | 70 years |
| Robert Lorne Thomas | Director | 1 Feb 1993 | 19 Sept 1995 | British | 80 years |
| Robert William St John | Director | 1 Apr 1993 | 20 Oct 1995 | British | 71 years |
| Robin Andrew Priest | Director | 1 Feb 1993 | 28 Jun 1995 | British | 67 years |
| Robyn Fay Beresford | Secretary | 1 Aug 2008 | 5 Feb 2010 | Other | - |
| Rolf Walter Edgar Levedag | Director | 1 Feb 1993 | 28 Sept 1993 | German | 84 years |
| Sally Elizabeth Lewis | Secretary | 30 Jul 1993 | 18 Feb 1999 | British | - |
| Shahid Bashir Chaudhri | Director | 14 Oct 1994 | 20 Oct 1995 | British | 72 years |
| Simon Austen Thorp | Director | 1 Apr 1993 | 20 Oct 1995 | British | 67 years |
| Simon Jeremy Collins | Director | 18 Oct 1993 | 20 Oct 1995 | British | 65 years |
| Soren Kring Nikolajsen | Director | 2 Dec 2014 | 31 Dec 2016 | Danish | 61 years |
| Stephan L Harris | Director | 1 Feb 1993 | 30 Jan 1997 | American | 79 years |
| Stephen Anthony Sinacore | Director | 9 Mar 1998 | 14 Apr 2000 | American | 67 years |
| Stephen Michael Peet | Director | 8 Nov 1996 | 13 Feb 1997 | American | 67 years |
| Stephen Rosenstjerne Krag | Director | 21 Aug 1996 | 31 Dec 1996 | British | 66 years |
| Timothy Charles Vernon Bryers | Secretary | 1 Feb 1993 | 29 Jul 1993 | British | - |
| Timothy John Pettit | Director | 1 Apr 1994 | 20 Oct 1995 | British | 66 years |
| Timothy John Pettit | Director | 19 Mar 2001 | 26 May 2010 | British | 66 years |
| Trevor Bush | Director | 1 Feb 1993 | 23 Aug 1994 | British | 79 years |
| Victoria Ann Ward | Director | 1 Feb 1993 | 14 Oct 1996 | British | 66 years |