| Andrew Richard John Calvert | Director | 8 Jun 1998 | 27 Aug 1998 | British | 74 years |
| Brian Armstrong | Secretary | 8 Jun 1998 | 22 Oct 2001 | British | - |
| Brian Malcolm Underwood | Director | 1 Oct 1992 | 16 Aug 1993 | British | 78 years |
| Christopher Frederick Jackson | Director | 1 Oct 1992 | 9 Jan 1994 | British | 77 years |
| David Jenkinson | Director | 1 May 2016 | 20 Sept 2020 | British | 58 years |
| David John Smith | Director | 10 Feb 1994 | 25 Mar 1994 | British | 67 years |
| David John Smith | Director | 2 Nov 1995 | 19 Mar 2001 | British | 67 years |
| David Norman Priest | Director | 1 Oct 1994 | 8 Jun 1998 | British | 78 years |
| Dennis Michael Webb | Director | 1 Oct 1992 | 28 Oct 1999 | British | 85 years |
| Geoffrey Grewer | Director | 19 Mar 2001 | 1 May 2002 | British | 83 years |
| Gerald Neil Francis | Director | 1 May 2002 | 30 Sept 2016 | British | 69 years |
| Jeffrey Fairburn | Director | 1 Jan 2010 | 31 Dec 2018 | British | 59 years |
| John David Low | Director | 28 Oct 1999 | 1 Jun 2001 | British | 81 years |
| John White | Director | 5 Jun 2001 | 31 Dec 2009 | British | 74 years |
| Keith David Pepperdine | Director | 1 Oct 1992 | 25 Feb 1994 | British | 66 years |
| Michael Hugh Killoran | Director | 19 Mar 2001 | 14 Jan 2022 | British | 64 years |
| Michael Peter Farley | Director | 1 Jan 2010 | 18 Apr 2013 | British | 72 years |
| Nigel Peter Greenaway | Director | 18 Apr 2013 | 30 Apr 2016 | British | 65 years |
| Paul Douglas Clewett | Director | 1 Sept 1994 | 8 Nov 1995 | British | 80 years |
| Peter John Fernandez | Director | 21 Oct 1996 | 8 Jun 1998 | British | 72 years |
| Richard Alan Gregory | Director | 1 Oct 1992 | 25 Feb 1994 | British | 79 years |
| Richard Alan Gregory | Director | 1 Oct 1994 | 8 Jun 1998 | British | 79 years |
| Richard Paul Stenhouse | Director | 30 Sept 2016 | 30 Sept 2021 | British | 54 years |
| Richard William Thomas | Director | 1 Oct 1992 | 25 Feb 1994 | British | 85 years |
| Richard William Thomas | Director | 1 Oct 1994 | 30 Sept 1995 | British | 85 years |
| Robert Gareth Jones | Director | 1 Oct 1992 | 25 Feb 1994 | British | 75 years |
| Robert Henry Heward Morris | Director | 1 Oct 1992 | 25 Feb 1994 | British | 84 years |
| Roger David Bishop | Director | 1 Oct 1992 | 25 Feb 1994 | British | 84 years |
| Roger David Bishop | Director | 1 Oct 1994 | 8 Jun 1998 | British | 84 years |
| Roger David Bishop | Secretary | 1 Oct 1992 | 25 Feb 1994 | British | - |
| Roger David Bishop | Secretary | 1 Oct 1994 | 8 Jun 1998 | British | - |