| Anne Armant Legendre Armstrong | Director | 1 Sept 1992 | 19 May 1997 | American | 98 years |
| Arthur Kwok Cheung Li | Director | 1 Jan 1997 | 27 Dec 2000 | British | 80 years |
| Arthur Menelaus Pappas | Director | 1 Sept 1992 | 16 Feb 1994 | American | 78 years |
| Charles Addison Sanders | Director | 1 Sept 1992 | 17 May 1995 | American | 73 years |
| Colin Ross Corness | Director | 18 Nov 1994 | 19 May 1997 | British | 94 years |
| Derek Charles Bonham | Director | 1 Jul 1995 | 26 Jan 2001 | British | 82 years |
| Donald John Derx | Director | 1 Sept 1992 | 19 May 1996 | British | 97 years |
| Ernest Mario | Director | 1 Sept 1992 | 10 Mar 1993 | American | 87 years |
| Francis Roger Hurn | Director | 1 Sept 1996 | 29 Jan 2001 | British | 87 years |
| Franz Bernhard Humer | Director | 1 Sept 1992 | 1 Dec 1994 | Swiss | 79 years |
| Hiroshi Konishi | Director | 1 Sept 1992 | 3 Jan 1995 | Japanese | 83 years |
| Howe Of Aberavon | Director | 1 Sept 1992 | 20 Dec 1996 | British | 99 years |
| Iain James Mackay | Director | 20 Jun 2019 | 1 May 2023 | British | 64 years |
| James Edward Niedel | Director | 1 Jul 1995 | 15 Jul 2001 | American | 81 years |
| James Larnard Ferguson | Director | 1 Sept 1992 | 17 Nov 1995 | American | 99 years |
| James Michael Thomas Cochrane | Director | 1 Jul 1995 | 31 Jan 2001 | British | 81 years |
| Jeremy Alan Watkin Strachan | Director | 1 Sept 1992 | 31 Dec 2000 | British | 81 years |
| John David Coombe | Director | 1 Sept 1992 | 31 Mar 2005 | British | 80 years |
| John Graham Cuckney | Director | 1 Sept 1992 | 17 Nov 1995 | British | 100 years |
| John Hector Mcarthur | Director | 5 Mar 1996 | 31 Jan 2001 | Canadian | 91 years |
| John Mulock Hignett | Director | 1 Sept 1992 | 31 Mar 1994 | British | 91 years |
| Julian Spenser Heslop | Director | 9 Sept 2009 | 31 Mar 2011 | British | 71 years |
| Michele Barzach | Director | 1 Jan 1997 | 1 Feb 2001 | French | 82 years |
| Neil Maidment | Director | 1 Mar 1993 | 30 Jun 1995 | British/new Zealand | 87 years |
| Nicholas Guy Usher Morris | Secretary | 1 Sept 1992 | 1 Feb 1996 | British | - |
| Paul Girolami | Director | 1 Sept 1992 | 18 Nov 1994 | British | 99 years |
| Peter James Denton Job | Director | 1 Oct 1997 | 29 Jan 2001 | British | 84 years |
| Ralf Dahrendorf | Director | 1 Sept 1992 | 16 Oct 1992 | British | 96 years |
| Richard Brook Sykes | Director | 1 Sept 1992 | 22 Mar 2002 | British | 83 years |
| Robert Alexander Ingram | Director | 17 May 1995 | 22 Mar 2002 | American | 83 years |
| Robin Leigh Pemberton | Director | 1 Oct 1993 | 5 Jan 1997 | British | 98 years |
| Ronaldo Hermann Schmitz | Director | 1 Jan 1997 | 20 Feb 2001 | German | 87 years |
| Sean Patrick Lance | Director | 1 Mar 1993 | 7 Nov 1997 | Irish | 78 years |
| Simon Michael Bicknell | Secretary | 1 Feb 1996 | 31 Jan 2001 | British | - |
| Simon Michael Bicknell | Secretary | 31 Jan 2001 | 28 Feb 2011 | British | - |
| Simon Paul Dingemans | Director | 1 Apr 2011 | 1 May 2019 | British | 62 years |
| Stephen John Cowden | Secretary | 1 Feb 1996 | 31 Jan 2001 | British | - |
| Thomas Richard Edmund Southwood | Director | 1 Sept 1992 | 17 May 1999 | British | 94 years |