| Allan Wheelwright | Director | 25 Mar 2002 | 15 Aug 2004 | British | 75 years |
| Anthony Guthrie | Secretary | 12 Apr 2016 | 3 May 2018 | - | - |
| David Evison | Director | 28 Apr 2000 | 26 Nov 2010 | British | 62 years |
| Dennis Malcolm Pocock | Director | 28 Apr 2000 | 9 Jan 2001 | British | 74 years |
| Duncan John Cooper | Director | 8 Mar 2018 | 2 May 2019 | British | 47 years |
| Edward Peter Barker | Director | 18 Apr 2012 | 8 Mar 2018 | British | 54 years |
| Hazel Debra Jarvis | Secretary | 25 Feb 2014 | 12 Apr 2016 | British | - |
| Hazel Debra Jarvis | Secretary | 15 Aug 2004 | 27 Jun 2012 | British | - |
| James John Mccarthy | Director | 15 Aug 2004 | 1 Jun 2006 | British | 70 years |
| John Angus Mclaren Oughtred | Director | 28 Apr 2000 | 14 Mar 2008 | British | 70 years |
| John Thomas Howden | Director | 28 Apr 2000 | 25 Jul 2003 | British | 84 years |
| John Thomas Howden | Secretary | 12 Apr 2000 | 25 Jul 2003 | British | - |
| Jonathan Robert Lawson | Director | 1 Jun 2006 | 8 Dec 2006 | British | 55 years |
| Julia Foo | Secretary | 14 Jun 2019 | 7 May 2021 | - | - |
| Lawrence Richard Christensen | Director | 8 Dec 2006 | 14 Mar 2008 | British | 83 years |
| Martyn Stephen Burke | Director | 14 Jun 2019 | 3 Dec 2019 | British | 56 years |
| Michael Trevor Walker | Director | 4 May 2005 | 25 Oct 2007 | British | 60 years |
| Nicholas Alwyn Mclaren Oughtred | Secretary | 25 Jul 2003 | 15 Aug 2004 | British | - |
| Nicholas Roger Hateley | Director | 4 May 2005 | 26 Oct 2006 | British | 61 years |
| Patrick William Farnsworth | Director | 12 Apr 2000 | 15 Aug 2004 | British | 79 years |
| Philip Davis | Director | 14 Jul 2003 | 25 Oct 2007 | British | 69 years |
| Philip Gallier | Director | 3 Dec 2019 | 9 Sept 2022 | British | 45 years |
| Philip William Davies | Secretary | 27 Jun 2012 | 25 Feb 2014 | British | - |
| Richard Alexander Fleming | Director | 16 Sept 2010 | 18 Apr 2012 | British | 55 years |
| Richard Collins | Director | 28 Apr 2000 | 10 Nov 2000 | British | 68 years |
| Richard Lancaster | Director | 11 Dec 2000 | 4 May 2005 | British | 63 years |
| Timothy Fallowfield | Secretary | 3 May 2018 | 14 Jun 2019 | - | - |