| Alyson Jones | Director | 12 Mar 2013 | 13 Mar 2013 | British | 55 years |
| Andrew Arthur Christie | Director | 1 Jan 2012 | 13 Nov 2012 | British | 66 years |
| Andrew Arthur Christie | Director | 12 Mar 2013 | 13 Mar 2013 | British | 66 years |
| Andrew Charles Eustace | Director | 1 Jan 2012 | 13 Nov 2012 | British | 64 years |
| Andrew Charles Eustace | Director | 12 Mar 2013 | 13 Mar 2013 | British | 64 years |
| Astrid Caroline Morris | Secretary | 31 Mar 1999 | 26 Apr 2000 | British | - |
| Christopher Edward Baylis | Director | 1 Jan 2012 | 13 Nov 2012 | British | 60 years |
| Christopher Edward Baylis | Director | 12 Mar 2013 | 13 Mar 2013 | British | 60 years |
| Clifford Grenville Hobbs | Director | 1 Jan 2012 | 13 Nov 2012 | British | 69 years |
| Clifford Grenville Hobbs | Director | 12 Mar 2013 | 13 Mar 2013 | British | 69 years |
| Helen Christine Pakeman | Director | 12 Mar 2013 | 13 Mar 2013 | British | 72 years |
| Hubert Anthony Fecher | Director | 9 Feb 1992 | 31 Dec 2010 | British | 90 years |
| Hubert Anthony Fecher | Secretary | 27 Apr 2000 | 6 Apr 2006 | British | - |
| Mairead Boyce | Director | 9 Feb 1992 | 31 Dec 2010 | British | 85 years |
| Mairead Boyce | Secretary | 9 Feb 1992 | 31 Mar 1999 | British | - |
| Nicholas Barritt Jones | Director | 10 Apr 2002 | 14 Jun 2005 | British | 75 years |
| Nicholas Barritt Jones | Director | 6 Apr 2006 | 28 May 2024 | British | 75 years |
| Pascal Adrian Wittet | Director | 28 May 2024 | 17 Dec 2024 | British | 45 years |
| Peter William Warren | Director | 1 Oct 1999 | 1 Feb 2002 | British | 86 years |
| Randal Joseph Pakeman | Director | 6 Apr 2006 | 28 May 2024 | British | 73 years |
| Randal Joseph Pakeman | Secretary | 6 Apr 2006 | 28 May 2024 | British | - |
| Scott Alexander James Bannerman | Director | 28 May 2024 | 17 Dec 2024 | British | 39 years |