| Anne Patricia Munson | Secretary | 28 Feb 2002 | 21 Jul 2003 | British | - |
| Anthony Victor Alexander | Director | 10 Apr 1992 | 4 Jul 1996 | British | 98 years |
| Celine Arlette Virginie Barroche | Secretary | 8 Nov 2010 | 31 Jan 2016 | - | - |
| Celine Arlette Virginie Barroche | Director | 1 Jan 2017 | 1 Aug 2024 | French | 52 years |
| Charles Latham Baillieu | Director | 12 May 2021 | 30 Sept 2024 | British | 41 years |
| Christopher Charles Shirtcliffe | Director | 10 Apr 1992 | 31 May 2002 | British | 82 years |
| David Neil Macfarlane | Director | 7 Jan 1993 | 6 Feb 1997 | British | 90 years |
| Edmund Alan Hough | Director | 1 Oct 1995 | 26 Aug 1997 | British | 82 years |
| Eric Arthur Hollis | Director | 10 Apr 1992 | 1 Apr 1992 | British | 108 years |
| Henry William Mckay | Director | 10 Apr 1992 | 6 Apr 1999 | British | 87 years |
| Himanshu Haridas Raja | Director | 28 Feb 2014 | 1 Oct 2016 | British | 61 years |
| Ian George Bridges | Director | 26 Apr 2002 | 12 Jan 2007 | British | 69 years |
| Irene Lavinia Elizabeth Cowden | Director | 26 Apr 2002 | 1 Jul 2015 | British | 73 years |
| James Drake Birrell | Director | 1 Oct 1993 | 6 Feb 1997 | British | 93 years |
| John James Delaney | Director | 10 Apr 1992 | 1 Apr 1992 | British | 107 years |
| Leonard Keith Gateson | Secretary | 21 Jul 2003 | 21 Dec 2004 | British | - |
| Nicholas Peter Buckles | Director | 20 Aug 2001 | 31 May 2013 | British | 65 years |
| Nigel Edward Griffiths | Director | 10 Apr 1992 | 1 Jan 2007 | British | 79 years |
| Nigel Edward Griffiths | Secretary | 10 Apr 1992 | 28 Feb 2002 | British | - |
| Patrick David Howes | Director | 10 Apr 1992 | 20 Aug 2001 | British | 85 years |
| Peter Alexander Charles Smith | Director | 10 Apr 1992 | 29 Mar 1995 | British | 106 years |
| Peter Frederick Howard Towle | Director | 10 Apr 1992 | 13 Dec 1994 | British | 113 years |
| Peter Michael Imbert | Director | 31 Mar 1993 | 6 Feb 1997 | British | 93 years |
| Peter Vincent David | Director | 1 Jan 2007 | 31 Dec 2016 | British | 68 years |
| Richard Alexander Graves | Director | 10 Apr 1992 | 6 Feb 1997 | British | 98 years |
| Richard George Hawkins | Director | 6 Jan 2003 | 10 Oct 2012 | British | 77 years |
| Roger Sydney William Hale Wiggs | Director | 10 Apr 1992 | 7 Jan 2002 | British | 87 years |
| Soren Lundsberg-nielsen | Director | 8 Oct 2013 | 24 Nov 2021 | Danish | 75 years |
| Stephen Edward Lyell | Secretary | 21 Dec 2004 | 1 Nov 2010 | Other | - |
| Timothy Peter Weller | Director | 24 Oct 2016 | 11 May 2021 | British | 63 years |
| Trevor Leslie Dighton | Director | 18 Feb 2002 | 31 Jul 2013 | British | 77 years |
| Vaishali Jagdish Patel | Secretary | 22 Jan 2018 | 5 May 2021 | - | - |
| William Andrew Hayes | Secretary | 31 Jan 2016 | 22 Jan 2018 | - | - |