| Angus Howard Fletcher | Director | 15 Jul 2009 | 22 Feb 2010 | British | 76 years |
| Anthony Alexander Preiskel | Director | 7 Nov 2006 | 3 Apr 2009 | British | 79 years |
| Bernadette Allinson | Secretary | 29 Sept 2006 | 22 Mar 2008 | Other | - |
| Christopher Warwick Pearse | Director | 1 Oct 2012 | 1 Dec 2017 | British | 55 years |
| Cynthia Mary Coombe | Secretary | 25 Oct 2010 | 1 Oct 2012 | - | - |
| David John Nicholson | Secretary | 22 Mar 2008 | 25 Oct 2010 | Australian | - |
| Eugene Theodorus Jansen Van Rensburg | Director | 1 May 2013 | 12 Jun 2020 | South African | 57 years |
| Helen Elizabeth Hammond | Director | 12 Jun 2020 | 24 Jun 2022 | British | 55 years |
| Ian Gregory Howie Barnett | Director | 15 Feb 2010 | 1 Oct 2012 | British | 76 years |
| John Ernest Cox | Secretary | 8 Jun 1998 | 27 Jul 2004 | British | - |
| Julian Miles Cobourne | Director | 1 Feb 2016 | 24 Aug 2020 | British | 57 years |
| Matthew Timothy Leach | Director | 8 Feb 2013 | 1 Feb 2016 | British | 48 years |
| Nicolaas Jacobus Stander | Director | 1 Oct 2012 | 1 May 2013 | South African | 57 years |
| Philip Alwyn Bignell | Director | 9 Jan 2002 | 29 Sept 2006 | British | 73 years |
| Philip Alwyn Bignell | Secretary | 27 Jul 2004 | 29 Sept 2006 | British | - |
| Rashidi Olugbenga Keshiro | Director | 3 Apr 2009 | 1 Oct 2012 | British | 60 years |
| Stephen Oliver Francis Kerridge | Director | 8 Jun 1998 | 28 Dec 2007 | British | 81 years |
| William Thomas Edgerley | Director | 8 Jun 1998 | 15 Jul 2009 | British | 70 years |