| Alan Brackenbridge | Director | 1 Jan 1998 | 1 Jul 2004 | British | 74 years |
| Alan Rae Fotheringham | Director | 24 Nov 2016 | 3 Apr 2019 | British | 60 years |
| Alexander Adrian Mieras | Director | 26 Jun 1991 | 6 Jul 1993 | British | 97 years |
| Allister Gordon Langlands | Director | 31 Dec 1995 | 31 Dec 1997 | British | 68 years |
| Andrew Peter Hemingway | Director | 18 Sept 2019 | 15 Aug 2022 | British | 52 years |
| Bruce Middleton | Director | 30 Jun 2012 | 31 May 2017 | British | 57 years |
| Charles Nicholas Brown | Director | 31 Dec 1995 | 31 Dec 1997 | British | 79 years |
| Charles Nicholas Brown | Secretary | 21 Dec 1993 | 23 Mar 1998 | British | - |
| Christopher Edward Milne Watson | Secretary | 1 Oct 1999 | 24 Nov 2003 | British | - |
| Colin Breton Mckinnon | Director | 9 Aug 2000 | 24 Nov 2016 | British | 67 years |
| David Archibald Macfarlane | Director | 5 Jan 1994 | 31 Dec 1995 | British | 69 years |
| Gary Roderick Webster | Director | 1 Jul 2004 | 17 Oct 2012 | British | 68 years |
| Gerwyn James Maxwell Williams | Director | 1 Jul 2004 | 25 May 2015 | British | 68 years |
| Graham Good | Secretary | 23 Mar 1998 | 1 Oct 1999 | British | - |
| Grant Rae Angus | Director | 31 May 2017 | 15 Aug 2022 | British | 56 years |
| Iain Angus Jones | Secretary | 18 Dec 2015 | 12 Jun 2024 | - | - |
| Ian Johnson | Secretary | 24 Nov 2003 | 1 Sept 2010 | British | - |
| John Patrick Kenny | Director | 26 Jun 1991 | 31 Dec 1995 | United Kingdom | 84 years |
| Kerry Milne | Director | 15 Aug 2022 | 15 Mar 2024 | British | 42 years |
| Michael Straughen | Director | 1 May 2007 | 30 Dec 2011 | British | 76 years |
| Paul Davies | Director | 26 Jun 1991 | 31 Dec 1995 | United Kingdom | 77 years |
| Philip Gwyn Brown | Director | 26 Jun 1991 | 31 Dec 1995 | British | 74 years |
| Philip William John Raven | Director | 26 Jun 1991 | 21 Dec 1993 | British | 75 years |
| Philip William John Raven | Director | 1 Jan 1998 | 7 Feb 2005 | British | 75 years |
| Richard Boan | Director | 26 Jun 1991 | 21 Dec 1993 | British | 76 years |
| Robert Alexander Macdonald | Director | 4 Jun 2009 | 31 Jul 2019 | British | 58 years |
| Robert Muirhead Birnie Brown | Director | 1 Sept 2010 | 1 Sept 2010 | British | 56 years |
| Robert Muirhead Birnie Brown | Secretary | 1 Sept 2010 | 18 Dec 2015 | - | - |
| Roderick Fraser Mcintosh | Director | 1 Jan 1998 | 30 Jun 2012 | British | 77 years |
| Stephen John Wayman | Director | 1 Jan 1998 | 30 Apr 2015 | British | 71 years |
| Trevor Mills Noble | Director | 19 May 2004 | 30 Apr 2007 | British | 80 years |
| William Edgar | Director | 1 Jan 1998 | 19 May 2004 | British | 88 years |
| Wsm Services Limited | Corporate Secretary | 26 Jun 1991 | 21 Dec 1993 | United Kingdom | - |
