| Alan George Hatchett | Director | 15 Apr 1991 | 5 May 1993 | British | 102 years |
| Alan Rowland Lingard Escombe | Director | 15 Apr 1991 | 22 May 1991 | British | 105 years |
| Bruce Dugald Macphail | Director | 15 Apr 1991 | 2 Jan 2024 | British | 87 years |
| Christopher Rogers | Director | 1 Jul 2008 | 28 Feb 2017 | British | 71 years |
| Clifford Leroy Miller | Director | 9 Mar 1999 | 1 Apr 2005 | British | 85 years |
| Clive Andrew Mowatt | Director | 18 Aug 2003 | 31 Mar 2008 | British | 78 years |
| David Edward Alban Morris | Director | 23 Jan 1997 | 30 Oct 2001 | British | 91 years |
| David Howard Lake | Director | 28 Feb 2017 | 30 Sept 2021 | British | 73 years |
| David Malcolm Newton | Director | 1 Apr 2005 | 31 Mar 2008 | British | 65 years |
| David Peter Harrison | Director | 15 Apr 1991 | 1 Apr 2005 | British | 87 years |
| David Richard Barford | Director | 28 Nov 2008 | 2 Apr 2012 | British | 78 years |
| Derek Kingston | Director | 1 Jan 1999 | 1 Nov 1999 | British | 89 years |
| Geoffrey Brian Whitehead | Director | 15 Apr 1991 | 9 Mar 1999 | British | 97 years |
| Harry Duncan Cory Mcgowan | Director | 1 Apr 2000 | 7 May 2003 | British | 88 years |
| Ian Gregory Howie Barnett | Director | 15 Apr 1991 | 10 Jan 2003 | British | 76 years |
| Jacqueline Alison Fraser-smith | Director | 19 Nov 1992 | 31 Dec 2002 | British | 65 years |
| Jacqueline Witchlow | Director | 5 Mar 2019 | 2 Jan 2024 | British | 58 years |
| James Desmond Stirling Gallacher | Director | 1 Sept 1993 | 1 Apr 2005 | British | 94 years |
| James Edward Townley Morris | Secretary | 15 Apr 1991 | 30 Jun 2002 | British | - |
| James Mary Michael Kane | Director | 6 Jul 1994 | 1 Jan 1999 | British | 93 years |
| Jane Elizabeth Bonnar Dean | Director | 28 Feb 2017 | 1 Mar 2021 | British | 71 years |
| Joanne Elizabeth Curin | Director | 15 Dec 2000 | 12 Mar 2003 | New Zealander | 68 years |
| John Malcolm Crossman | Director | 18 May 1993 | 28 Nov 2008 | British | 86 years |
| John Martin Clay | Director | 1 Jul 1992 | 31 Mar 2000 | British | 99 years |
| John Thompson Newton | Director | 15 Apr 1991 | 31 Dec 1994 | British | 87 years |
| John Tyndale Marden | Director | 29 Apr 1996 | 1 Oct 2000 | British | 76 years |
| Jonathan Hugh Bell | Director | 1 Apr 2005 | 31 Mar 2008 | British | 64 years |
| Kerry West Moore | Director | 15 Apr 1991 | 31 Mar 2000 | British | 99 years |
| Lynne Lesley Bulmer | Director | 23 Jan 1997 | 27 Aug 1997 | British | 79 years |
| Michael David Denchfield | Director | 15 Apr 1991 | 10 Apr 1996 | British | 89 years |
| Mohammad Ebrahim Ali Alhashimy | Director | 19 Jul 2012 | 1 Mar 2019 | British | 41 years |
| Nicholas Lawrence Luff | Director | 9 Mar 1999 | 1 Oct 2000 | British | 59 years |
| Nicholas Lawrence Luff | Director | 1 Aug 2003 | 22 Nov 2005 | British | 59 years |
| Nicholas Lawrence Luff | Director | 15 May 2006 | 7 Mar 2007 | British | 59 years |
| Nigel Simon Pusey | Director | 18 Aug 2003 | 1 Apr 2005 | British | 65 years |
| Patrick William Walters | Director | 31 Mar 2007 | 30 Jun 2008 | British | 60 years |
| Paul Hayward-smith | Director | 1 Apr 2007 | 18 Jul 2012 | British | 70 years |
| Paul Ian Hedley | Director | 13 Jan 2003 | 5 Apr 2007 | British | 57 years |
| Peter Donnelly | Director | 1 Apr 2005 | 28 Feb 2017 | British | 79 years |
| Peter Grenville Cazalet | Director | 15 Apr 1991 | 9 Mar 1999 | British | 97 years |
| Peter James Smith | Director | 7 Jan 2000 | 1 Apr 2005 | British | 75 years |
| Peter Thomas Davies | Director | 15 Apr 1991 | 28 Jun 1993 | British | 93 years |
| Rachael De Souza | Secretary | 30 Jun 2008 | 29 Oct 2012 | Other | - |
| Richard Leslie Martin | Director | 1 Oct 1993 | 15 Jan 1997 | British | 86 years |
| Richard Myles Dawborn | Director | 15 Apr 1991 | 31 Aug 1992 | British | 94 years |
| Rita Powell | Secretary | 3 Jul 2002 | 30 Jun 2008 | British | - |
| Rodney Desmond Galpin | Director | 1 Apr 2000 | 1 Apr 2005 | British | 94 years |
| Ronald Norman Walford | Director | 10 Aug 1992 | 2 Dec 1997 | United Kingdom | 82 years |
| Rowan Robin Hope | Director | 12 Jan 1998 | 1 Nov 1999 | British | 80 years |
| Simon James Edsall | Director | 15 Dec 2000 | 31 Mar 2007 | British | 59 years |
| Sissie Yau Lan Chan | Director | 15 Apr 1991 | 19 Nov 1992 | British | 74 years |
| Stephen Michael Bishop | Director | 1 Jul 2008 | 31 Aug 2014 | British | 72 years |
| Terence Charles Cairns | Director | 9 Mar 1999 | 1 Apr 2005 | British | 79 years |
| Timothy John Randolph Harding | Director | 1 Nov 2001 | 31 Dec 2013 | British | 86 years |
| William Edward Hedley | Director | 15 Apr 1991 | 19 Jul 1993 | British | 103 years |
| William Furlonger Hunt | Director | 15 Apr 1991 | 5 Apr 1994 | British | 102 years |
| Yuvraj Narayan | Director | 1 Apr 2007 | 30 Jun 2008 | Indian | 70 years |