| Alexander Maxwell Crombie | Director | 30 Aug 2001 | 28 Jan 2004 | British | 77 years |
| Beverley Hendry | Director | 19 Oct 2017 | 31 Mar 2022 | British | 73 years |
| Christopher Thomas Demetriou | Director | 19 Oct 2017 | 1 Jun 2023 | British | 43 years |
| Colin Martin Clark | Director | 3 Nov 2011 | 14 Aug 2017 | British | 67 years |
| David John Burns | Secretary | 1 Aug 2010 | 10 May 2016 | - | - |
| Erin Jilek Spatz | Director | 10 Oct 2005 | 19 May 2006 | American | 61 years |
| Erlend Lochen | Director | 10 May 2016 | 1 Aug 2022 | Norwegian | 58 years |
| Holly Sylvia Kidd | Secretary | 10 May 2016 | 31 Dec 2020 | - | - |
| Jane Elizabeth Lynn | Director | 13 Feb 2001 | 30 Aug 2001 | British | 59 years |
| Jeffrey Glenn Morris | Director | 10 Oct 2005 | 1 May 2013 | American | 59 years |
| Jeffrey Glenn Morris | Director | 6 Feb 2018 | 31 Dec 2019 | American | 59 years |
| John Thomas Boyce | Director | 1 May 2013 | 30 Apr 2018 | American | 67 years |
| Lance Richard Leighton Phillips | Director | 30 Aug 2001 | 1 May 2006 | British | 62 years |
| Mary English | Director | 5 Dec 2001 | 13 Sept 2005 | American | 66 years |
| Norman Keith Skeoch | Director | 30 Aug 2001 | 1 Sept 2015 | British | 70 years |
| Norman Raschkowan | Director | 30 Aug 2001 | 5 Oct 2007 | Canadian | 68 years |
| Paul Michael Pasquill | Director | 14 May 2004 | 13 Jun 2008 | British | 71 years |
| Peter Anthony Stubbs | Secretary | 30 Aug 2001 | 15 Oct 2003 | British | - |
| Peter Charles Hill | Director | 30 Aug 2001 | 3 Jan 2006 | Canadian | 83 years |
| Roger Andre Renaud | Director | 18 Jan 2006 | 1 May 2013 | Canadian | 66 years |
| Stephen Weeple | Director | 25 May 2006 | 7 May 2014 | British | 54 years |
| Stephen Weeple | Director | 10 May 2016 | 9 Dec 2016 | British | 54 years |
| Thomas Black Houston | Director | 13 Feb 2001 | 30 Aug 2001 | British | 76 years |
| Thomas Black Houston | Secretary | 13 Feb 2001 | 30 Aug 2001 | British | - |
| Vincent Joseph O'brien | Secretary | 16 Oct 2003 | 1 Aug 2010 | British | - |
| William Howell Perry | Director | 10 Oct 2005 | 6 Jun 2017 | American | 62 years |