| Alan George Burns | Director | 3 Dec 2012 | 3 Apr 2019 | British | 50 years |
| Ashley Alexander Grist | Director | 2 Oct 2006 | 20 Oct 2010 | British | 60 years |
| Charalampos Panagiotidis | Director | 15 Feb 2019 | 2 Mar 2020 | Greek | 48 years |
| Christopher Lindsay Christian | Director | 13 Oct 1995 | 29 Sept 1997 | British | 75 years |
| Derek Davies | Director | 6 Sept 2010 | 14 Dec 2012 | British | 62 years |
| James Borger | Director | 25 Feb 2019 | 2 Mar 2020 | American | 62 years |
| Jeremy Alan Watkin Strachan | Director | 13 Oct 1989 | 31 Dec 2000 | British | 81 years |
| John David Coombe | Director | 13 Oct 1989 | 31 Mar 2005 | British | 80 years |
| Jonathan Laurence Patrick Hyde | Director | 13 Oct 1989 | 13 Oct 1995 | British | 72 years |
| Jonathan Mark Bolton | Director | 29 Sept 1997 | 8 Apr 1998 | British | 59 years |
| Jonathan Mark Bolton | Secretary | 13 Oct 1989 | 8 Apr 1998 | British | - |
| Julian Spenser Heslop | Director | 31 Jan 2001 | 31 Mar 2011 | British | 71 years |
| Leo Alexander Nuttall | Secretary | 10 Sept 2001 | 29 Oct 2004 | British | - |
| Lorraine Anne Day | Director | 8 Apr 1998 | 5 Dec 2005 | British | 58 years |
| Malcolm David Hewitt | Director | 13 Oct 1989 | 5 Dec 1994 | British | 64 years |
| Nicholas Guy Usher Morris | Director | 5 Dec 1994 | 1 Feb 1996 | British | 85 years |
| Oleg Dubianskij | Director | 31 Jan 2017 | 13 Feb 2019 | Lithuanian | 53 years |
| Patrick Ansell | Director | 2 Aug 2005 | 4 Aug 2006 | British | 60 years |
| Richard James Stephens | Secretary | 31 Jul 2003 | 5 Mar 2007 | British | - |
| Simon Michael Bicknell | Secretary | 8 Apr 1998 | 28 Feb 2011 | British | - |
| Simon Paul Dingemans | Director | 1 Apr 2011 | 1 May 2019 | British | 62 years |
| Stephen John Cowden | Director | 1 Feb 1996 | 31 Jan 2001 | British | 73 years |