| Alan Paul Busson | Secretary | 5 Apr 2006 | 29 Sept 2006 | British | - |
| Alasdair Christopher Gillies | Director | 22 Jul 2003 | 15 May 2013 | British | 68 years |
| Amanda Louise Knott | Secretary | 29 Sept 2006 | 15 May 2013 | British | - |
| Ann Claire Blundell | Secretary | 15 May 2013 | 4 Feb 2014 | - | - |
| Corina Katherine Ross | Secretary | 2 Jun 2011 | 22 May 2013 | British | - |
| David Alan Seviour | Director | 3 Jul 2001 | 12 May 2003 | British | 90 years |
| David John Etherington | Director | 22 Jul 2004 | 31 Aug 2012 | British | 69 years |
| Helen Frances Leigh Rogers | Secretary | 14 Jul 2008 | 2 Dec 2011 | British | - |
| Ian Ritchie | Secretary | 15 May 2013 | 4 Feb 2014 | - | - |
| Isla Rebecca Hale | Secretary | 22 Jul 2004 | 5 Apr 2006 | British | - |
| James Douglas Sutherland | Director | 23 Jul 2014 | 20 Oct 2017 | British | 52 years |
| Jayne Michelle Meacham | Secretary | 1 Nov 2006 | 2 May 2008 | British | - |
| Jonathan Vaughan-williams | Director | 15 May 2013 | 28 Apr 2017 | British | 59 years |
| Peter Charles Howe | Director | 3 Jul 2001 | 22 Jul 2004 | British | 80 years |
| Peter Charles Howe | Secretary | 3 Jul 2001 | 22 Jul 2004 | British | - |
| Philip Wood | Director | 2 Nov 2010 | 23 Jul 2014 | British | 69 years |
| Steven James Colsell | Director | 22 Jul 2004 | 30 Sept 2004 | British | 62 years |
| Vincent John Jerrard | Director | 28 Aug 2001 | 22 Jul 2003 | British | 71 years |