| Alan John Titchener | Secretary | 1 Apr 2008 | 23 Jun 2010 | British | - |
| Alan William Ridding | Director | 9 Aug 1991 | 30 Apr 1993 | British | 85 years |
| Alasdair Christopher Gillies | Director | 21 Oct 1998 | 30 Nov 2000 | British | 68 years |
| Alasdair Christopher Gillies | Director | 4 Apr 2003 | 31 Oct 2003 | British | 68 years |
| Alexander Park Leitch | Director | 5 Sept 2000 | 21 Dec 2000 | British | 79 years |
| Allan Bridgewater | Director | 31 Oct 2003 | 8 Feb 2006 | British | 90 years |
| Ann Frances Godbehere | Director | 31 Oct 2003 | 8 Feb 2006 | Canadian Director | 71 years |
| Brian Michael Thomas | Director | 26 Sept 2000 | 7 Jun 2001 | British | 74 years |
| Brian Philip Ridsdale | Director | 9 Aug 1991 | 30 Sept 1998 | British | 83 years |
| Brid Mary Meaney | Director | 31 Dec 2022 | 23 Aug 2024 | Irish | 52 years |
| Bryan James Howett | Director | 3 May 1994 | 21 Oct 1998 | Irish | 70 years |
| Bryan James Howett | Secretary | 3 May 1994 | 14 Jan 1999 | Irish | - |
| Catherine Elisabeth Dorcas Bell | Director | 31 Oct 2003 | 27 Feb 2004 | British | 75 years |
| Christopher John Willett | Director | 5 Sept 2000 | 12 Feb 2001 | British | 79 years |
| Christopher Keogh | Director | 5 Sept 2000 | 7 Jun 2001 | British | 67 years |
| Colin Murray Campbell | Director | 31 Oct 2003 | 27 Feb 2004 | British | 82 years |
| David Lawrence Chartres Lee | Director | 9 Aug 1991 | 3 May 1994 | British | 85 years |
| David Lawrence Chartres Lee | Secretary | 9 Aug 1991 | 3 May 1994 | British | - |
| David Perrott Sims | Director | 5 Jul 1999 | 21 Aug 2000 | British | 68 years |
| David Perrott Sims | Director | 4 Apr 2003 | 31 Oct 2003 | British | 68 years |
| David Ross Carrie | Director | 5 Sept 2000 | 7 Jun 2001 | United Kingdom | 62 years |
| David Ross Carrie | Director | 4 Apr 2003 | 31 Oct 2003 | United Kingdom | 62 years |
| Dean Edward Miller | Director | 31 Oct 2003 | 11 Jul 2005 | American | 63 years |
| Dennis William White | Director | 9 Aug 1991 | 14 Jul 1999 | British | 85 years |
| Frank Richard Hall | Director | 9 Aug 1991 | 31 Mar 1994 | British | 92 years |
| Fritz Gerber | Director | 9 Aug 1991 | 30 Jun 1995 | Swiss | 97 years |
| Graham John Allan | Director | 21 Oct 1998 | 14 Jul 1999 | British | 74 years |
| Gunther Gose | Director | 30 Jun 1995 | 21 Oct 1998 | German | 82 years |
| Iain Fraser Campbell | Secretary | 31 Oct 2003 | 31 May 2006 | British | - |
| Ian Rogers | Director | 8 Feb 2006 | 31 Mar 2007 | British | 77 years |
| Jacques Alfred Gilbert Aigrain | Director | 31 Oct 2003 | 27 Feb 2004 | French | 72 years |
| Jacques Ernest Dubois | Director | 31 Oct 2003 | 28 Apr 2005 | American | 77 years |
| James Kingsley Reeve | Director | 5 Sept 2000 | 31 Oct 2003 | British | 69 years |
| Jeremy Charles Hew Grace | Director | 13 Aug 2009 | 18 Jul 2017 | British | 61 years |
| Jeremy Ward Grayburn | Director | 26 Sept 2000 | 6 Apr 2001 | British | 74 years |
| John Antony Cacchioli | Director | 5 Sept 2000 | 7 Jun 2001 | British | 68 years |
| John Henry Fitzpatrick | Director | 31 Oct 2003 | 8 Feb 2006 | Usa & Republic Ireland | 70 years |
| John Peter Jewitt | Director | 11 Oct 2000 | 6 Jun 2001 | British | 72 years |
| John Richard Coomber | Director | 31 Oct 2003 | 27 Feb 2004 | British | 77 years |
| Jonathan James Yates | Director | 11 Jul 2005 | 8 Feb 2006 | British | 65 years |
| Kathryn Elise Lewis | Director | 8 Feb 2006 | 4 Oct 2007 | American | 55 years |
| Keith Reginald Baldwin | Director | 24 Oct 2001 | 31 Aug 2003 | British | 78 years |
| Lawrence Churchill | Director | 5 Dec 2002 | 7 Nov 2003 | British | 80 years |
| Marianne Fitzjohn | Director | 4 Apr 2003 | 23 Oct 2003 | Danish | 60 years |
| Martyn Ronald Parker | Director | 27 Feb 2004 | 8 Feb 2006 | British | 69 years |
| Michael Andrew Ferns | Director | 4 Apr 2003 | 31 Oct 2003 | British | 62 years |
| Michael Charles Woodcock | Director | 4 Oct 2012 | 12 Apr 2022 | British | 58 years |
| Michael Patrick Lyons | Director | 4 Oct 2007 | 15 Jun 2010 | Irish | 63 years |
| Michel Marie Lies | Director | 31 Oct 2003 | 27 Feb 2004 | Luxembourg | 72 years |
| Noel Campbell | Director | 1 Apr 2007 | 31 Aug 2007 | Irish | 69 years |
| Paul Shakespeare | Secretary | 23 Jun 2010 | 22 Jul 2020 | British | - |
| Peter Charles Campbell | Director | 11 Sept 2000 | 11 Jun 2001 | British | 68 years |
| Peter Charles Howe | Secretary | 14 Jan 1999 | 31 Oct 2003 | British | - |
| Peter Geoffrey Ward | Director | 31 Oct 2003 | 8 Feb 2006 | British | 84 years |
| Phil Andrew Hodkinson | Director | 8 Dec 1998 | 15 Nov 2000 | British | 68 years |
| Phillip Maxwell Colebatch | Director | 31 Oct 2003 | 27 Feb 2004 | Australian | 82 years |
| Raymond Greenshields | Director | 21 Dec 2000 | 14 Oct 2002 | Australian | 79 years |
| Rodney Malcolm Cook | Director | 18 Sept 2001 | 14 Oct 2002 | British/australian | 69 years |
| Roger Craine | Director | 13 Aug 2009 | 4 Oct 2012 | British | 70 years |
| Rudolf Franz Huppi | Director | 9 Aug 1991 | 31 Mar 1998 | Swiss | 83 years |
| Sarah Lewis | Secretary | 1 Jun 2006 | 31 Mar 2008 | British | - |
| Shayne Paul Deighton | Director | 5 Jul 1999 | 20 Dec 2000 | British | 67 years |
| Steven James Colsell | Director | 1 Feb 2001 | 31 Oct 2003 | British | 62 years |
| Timothy Joseph Carroll | Director | 30 Aug 2007 | 13 Feb 2009 | Irish | 71 years |
| Vincent John Jerrard | Director | 11 Sept 2000 | 4 Apr 2003 | British | 71 years |