| Christophe Andre Bernard Chapron | Director | 19 Feb 2007 | 31 Jan 2016 | French | 62 years |
| Denis Thatcher | Director | 13 Dec 1990 | 31 Jan 1994 | British | 111 years |
| Donald Jackson | Director | 18 Dec 1991 | 10 Dec 1993 | Canadian | 82 years |
| Edward Carlisle Norwood | Director | 9 Dec 1994 | 8 May 1995 | American | 86 years |
| Edward Walter Schick | Director | 9 Dec 1994 | 8 May 1995 | Us Citizen | 70 years |
| Edward Walter Schick | Director | 12 May 1995 | 27 Jun 1995 | Us Citizen | 70 years |
| Edwin David Johnson | Director | 18 Mar 1992 | 18 Mar 1995 | Usa | 70 years |
| Elizabeth Jayne Clare Cooper | Secretary | 1 Jul 2001 | 31 Jul 2003 | British | - |
| Florent Thierry Antoine Duval | Director | 1 Feb 2016 | 31 Oct 2021 | French | 50 years |
| Fred Cecil Edwards | Director | 13 Dec 1990 | 18 Dec 1991 | American | 82 years |
| Gary Howard Baise | Director | 13 Jun 1994 | 9 Dec 1994 | Us | 85 years |
| Ian Anthony Sexton | Director | 2 Mar 2001 | 19 Feb 2007 | British | 70 years |
| Ian Frederick Goodfellow | Director | 19 May 1999 | 31 May 2003 | British | 72 years |
| Ivan Robert Cairns | Director | 18 Dec 1991 | 9 Dec 1994 | Canadian | 80 years |
| Jack Richard Casagrande | Director | 13 Dec 1990 | 9 Dec 1993 | American | 81 years |
| James Gregory Muldoon | Director | 9 Dec 1994 | 8 May 1995 | Us | 72 years |
| James Ross Bullock | Director | 29 Oct 1993 | 9 Dec 1994 | British | 82 years |
| Joan Knight | Secretary | 31 Jul 2003 | 6 May 2025 | British | - |
| John Patrick Volpi | Director | 9 Dec 1994 | 29 Sept 1997 | Us | 76 years |
| Leslie William Haworth | Director | 18 Dec 1991 | 9 Dec 1994 | Canadian | 83 years |
| Marek Robert Gordon | Director | 9 Dec 1994 | 19 May 1999 | British | 73 years |
| Marek Robert Gordon | Director | 31 May 2003 | 31 Dec 2007 | British | 73 years |
| Mark Hugh Joseph Radcliffe | Director | 17 Mar 1994 | 9 Dec 1994 | British | 88 years |
| Michael Anthony Ashcroft | Director | 13 Dec 1990 | 18 Dec 1991 | British | 80 years |
| Michael Kenneth Foreman | Director | 13 Dec 1990 | 10 May 1995 | British | 92 years |
| Peter Stewart Lane Of Horsell | Director | 1 Jun 1992 | 9 Dec 1994 | British | 101 years |
| Ralph Velocci | Director | 13 Dec 1990 | 9 Dec 1993 | American | 77 years |
| Robert Anthony Searby | Director | 29 Sept 1995 | 2 Mar 2001 | British | 70 years |
| Robert Anthony Searby | Secretary | 18 Mar 1992 | 19 May 1999 | British | - |
| Simon John Thorne | Director | 19 May 1999 | 30 Jun 2001 | British | 59 years |
| Simon John Thorne | Secretary | 19 May 1999 | 30 Jun 2001 | British | - |
| Stuart Anthony Lee | Director | 13 Dec 1990 | 4 Feb 1992 | British | 77 years |
| Stuart Anthony Lee | Secretary | 13 Dec 1990 | 4 Feb 1992 | British | - |
| Timothy James Penfold | Director | 24 Oct 1991 | 27 Jun 1995 | British | 76 years |
| Timothy James Penfold | Director | 29 Sept 1995 | 31 Jul 1998 | British | 76 years |