| Andrew Michael David Kirkman | Director | 1 Apr 2011 | 18 Sept 2015 | British | 54 years |
| Anthony James Cummings | Director | 3 Apr 2006 | 8 Apr 2009 | British | 92 years |
| Barrie Sidney Hurley | Director | 8 Apr 2009 | 31 Dec 2011 | British | 75 years |
| Charles Humphry | Director | 21 Oct 1997 | 3 Apr 2004 | British | 80 years |
| Charles Humphry | Secretary | 21 Oct 1997 | 4 Mar 1998 | British | - |
| Charles Humphry | Secretary | 23 Mar 1999 | 3 Apr 2004 | British | - |
| David Balfour Robertson | Director | 8 Apr 2009 | 31 Mar 2011 | British | 72 years |
| Deanne Cecile Bergin | Secretary | 4 Mar 1998 | 23 Mar 1999 | British | - |
| Elliot Arthur James Rees | Director | 31 Jul 2015 | 12 Oct 2020 | British | 52 years |
| Graham Kenneth Johnson | Director | 3 Apr 2006 | 8 Apr 2009 | British | 77 years |
| Graham Kenneth Johnson | Secretary | 3 Apr 2006 | 8 Apr 2009 | British | - |
| Helen Patricia Barrett-hague | Secretary | 25 Mar 2016 | 22 Nov 2018 | - | - |
| Karen Senior | Secretary | 1 Nov 2014 | 8 Jul 2020 | - | - |
| Kenneth David Woodier | Secretary | 13 Mar 2012 | 25 Mar 2016 | British | - |
| Lyndi Margaret Hughes | Secretary | 9 Jul 2020 | 14 Jul 2023 | - | - |
| Margaret Lilian Heeley | Secretary | 8 Apr 2009 | 28 Jul 2014 | British | - |
| Mark Burrows Smith | Director | 1 Oct 2012 | 30 Jun 2015 | British | 59 years |
| Michael Hellings | Director | 8 Apr 2009 | 30 Sept 2012 | British | 75 years |
| Nicholas William Maddock | Director | 12 Oct 2020 | 16 Jun 2023 | British | 55 years |
| Philip Lewis Clein | Director | 21 Oct 1997 | 3 Apr 2006 | British | 81 years |
| Phillip Charles Piddington | Director | 31 Jul 2015 | 12 Oct 2020 | British | 70 years |
| Richard Cyril Zmuda | Secretary | 13 Mar 2012 | 30 Nov 2016 | British | - |
| Scott Edward Massie | Secretary | 22 Nov 2018 | 8 Jul 2020 | - | - |
| Simon Anthony Follett Pugsley | Secretary | 22 Nov 2018 | 8 Jul 2020 | - | - |
| Stephen Gerard Sweeney | Director | 12 Dec 1996 | 21 Oct 1997 | British | 56 years |
| Stephen Thomas Jenkinson | Director | 3 Apr 2006 | 8 Apr 2009 | British | 75 years |
| Thomas Peter Langmaid Ford | Director | 12 Dec 1996 | 21 Oct 1997 | British | 58 years |
| Thomas Peter Langmaid Ford | Secretary | 12 Dec 1996 | 21 Oct 1997 | British | - |
