| Andrew James Mottram | Director | 29 Jan 2007 | 22 Mar 2013 | British | 64 years |
| Andrew Julian Gould | Director | 16 Jul 2009 | 22 Mar 2013 | British | 68 years |
| Anthony Robert Harris | Director | 27 Nov 1991 | 6 Oct 1999 | British | 89 years |
| Jeremy William Lester | Director | 23 May 2006 | 9 Feb 2007 | British | 65 years |
| John Christopher Charles Haynes | Secretary | 6 Oct 1999 | 11 Oct 2001 | British | - |
| John Richard Izett | Director | 27 Nov 1991 | 23 May 2006 | British | 70 years |
| Jonathan Ian Mannings | Director | 1 Jan 1999 | 10 Feb 2003 | British | 61 years |
| Laurence George Smith Johnstone | Director | 27 Nov 1991 | 23 May 2006 | British | 76 years |
| Mark Andrew Lacey | Director | 27 Nov 1991 | 23 May 2006 | British | 67 years |
| Michael Andrew Kirby Pain | Director | 1 May 1993 | 23 May 2006 | British | 66 years |
| Michael Devis Kenney | Secretary | 11 Oct 2001 | 23 May 2006 | British | - |
| Michael Edward Pickering | Secretary | 27 Nov 1991 | 6 Oct 1999 | British | - |
| Nicolas Guillaume Taylor | Secretary | 23 May 2006 | 30 Sept 2022 | British | - |
| Parimal Raojibhai Patel | Director | 29 Jan 2007 | 18 Sept 2009 | British | 60 years |
| Richard Howling | Director | 16 Oct 2009 | 21 Feb 2017 | British | 46 years |
| Russell Peter Meadows | Director | 27 Nov 1991 | 23 May 2006 | British | 69 years |
| Stephen James Cresswell | Director | 23 May 2006 | 9 Feb 2007 | British | 60 years |
| Timothy John Adams Simon | Director | 27 Nov 1991 | 15 May 1995 | British | 78 years |
| Trevor Ironside Saunders | Director | 27 Nov 1991 | 30 Apr 2002 | British | 76 years |