| Alfred Henry Evans | Director | 15 May 2012 | 7 Feb 2014 | United States Of America | 61 years |
| Bruno Derungs | Director | 6 Aug 2008 | 3 Mar 2015 | Swiss | 62 years |
| Carole Hellen Ryan Hofbeck | Secretary | 1 May 2006 | 15 Feb 2008 | Australian | - |
| Eric Patrick Roger Alsembach | Director | 7 Feb 2014 | 30 Jun 2015 | Canadian | 60 years |
| Jeremy David Erle Gough | Director | 6 Aug 2008 | 3 Feb 2015 | British | 73 years |
| John Alexander Betts | Director | 6 Aug 2008 | 3 Mar 2015 | British | 63 years |
| John Metzler | Director | 1 Jun 2005 | 10 May 2007 | British | 61 years |
| Mark Ian Bruce Woodall | Director | 27 May 2005 | 10 Sept 2009 | British | 64 years |
| Mark Ian Macleod | Secretary | 15 Feb 2008 | 6 Aug 2008 | British | - |
| Mark Simon Bell | Director | 10 Oct 2010 | 15 May 2012 | United Kingdom | 65 years |
| Monica Comyns | Secretary | 27 May 2005 | 30 Apr 2006 | British | - |
| Rosina Teresa Mccloskey | Secretary | 15 Aug 2012 | 3 Aug 2015 | - | - |
| Shaun Albert Mays | Director | 10 Sept 2009 | 10 Oct 2011 | British | 70 years |
| Simon Michael Drury | Director | 6 Aug 2008 | 3 Mar 2015 | British | 68 years |
| Simon Patrick Robert Tissot | Secretary | 6 Aug 2008 | 15 Aug 2012 | British | - |
