| Andrew David Briggs | Director | 29 Jun 2001 | 31 Oct 2001 | British | 59 years |
| Andrew David Briggs | Director | 23 Jul 2002 | 2 Oct 2006 | British | 59 years |
| Andrew Michael Crossley | Director | 13 Mar 2007 | 6 Jun 2013 | British | 69 years |
| Archibald Mackay Stevenson | Secretary | 29 Mar 1989 | 19 Jan 1990 | British | - |
| Ashok Kumar Gupta | Director | 18 Mar 1992 | 24 Nov 1997 | British | 71 years |
| Daniel John Pender | Director | 13 Feb 2015 | 8 Dec 2015 | British | 50 years |
| David John Belsham | Director | 29 Jun 2000 | 7 Jul 2014 | British | 66 years |
| Douglas Ferrans | Director | 18 Oct 1995 | 1 Oct 1997 | British | 71 years |
| Edward Stanley Clack | Director | 29 Jun 2000 | 12 Nov 2001 | British | 77 years |
| Finbar Anthony O'dwyer | Director | 16 Jan 2009 | 24 May 2013 | Irish | 54 years |
| Gary Paul John Shaughnessy | Director | 14 Dec 2006 | 25 Sept 2008 | British | 59 years |
| Gerard Anthony Gallagher | Director | 29 Jun 2000 | 12 Nov 2001 | British | 66 years |
| Gregory Mark Wood | Director | 31 Oct 2001 | 17 Oct 2005 | British | 72 years |
| Hamayou Akbar Hussain | Director | 17 Jun 2013 | 19 Jul 2016 | British | 53 years |
| Hugh Bennie Mckee | Director | 15 Dec 2006 | 30 Mar 2007 | British | 61 years |
| Istvan Antal Haasz | Director | 19 Jul 2007 | 15 Jan 2010 | British | 61 years |
| Jacqueline Hunt | Director | 1 Oct 2013 | 2 Nov 2015 | British | 57 years |
| James Charles Mitchell | Director | 18 Mar 1992 | 29 Jun 2000 | British | 85 years |
| James Charles Mitchell | Secretary | 19 Jan 1990 | 31 Dec 1997 | British | - |
| James Robert Crosby | Director | 18 Mar 1992 | 8 Feb 1994 | British | 69 years |
| James White Jack | Director | 1 Nov 1997 | 29 Jun 2000 | British | 74 years |
| Jeremy Spencer Deeks | Director | 30 Aug 2016 | 30 Aug 2016 | British | 55 years |
| Jeremy Spencer Deeks | Director | 21 Oct 2016 | 31 Oct 2017 | British | 55 years |
| John Kenneth Elbourne | Director | 29 Jun 2000 | 7 Mar 2001 | British | 81 years |
| John Martin Wilson | Director | 18 Oct 1995 | 30 Dec 1997 | British | 80 years |
| John Warburton | Director | 2 Aug 2013 | 7 Apr 2015 | British | 66 years |
| John Warburton | Director | 30 Aug 2016 | 22 Sept 2017 | British | 66 years |
| Kenneth John Hurry | Director | 29 Mar 1989 | 7 Nov 1989 | British | 96 years |
| Kieran Mark Coleman | Director | 18 Apr 2006 | 15 Dec 2006 | Irish | 56 years |
| Kim Stuart Lerche-thomsen | Director | 29 Jun 2000 | 5 Sept 2002 | British | 73 years |
| Maria Luisa Cassoni | Director | 1 Oct 1997 | 6 May 1998 | British | 74 years |
| Mark Edward Tucker | Director | 11 Nov 2005 | 9 Jan 2006 | British | 68 years |
| Maurice Dinsmore Paterson | Director | 29 Mar 1989 | 10 Jun 1994 | British | 84 years |
| Michael John Moores | Director | 31 Oct 2001 | 2 Sept 2002 | British | 69 years |
| Nicholas Edward Tucker Prettejohn | Director | 9 Jan 2006 | 30 Sept 2009 | British | 65 years |
| Patrick Norman Chaloner Johns | Director | 1 Oct 1997 | 31 Jan 2000 | British | 70 years |
| Paul Spencer | Director | 19 Jul 2016 | 16 Dec 2016 | British | 75 years |
| Raymond Anderson | Director | 29 Mar 1989 | 4 Apr 1990 | British | 91 years |
| Richard Julian Field | Director | 30 Jul 2002 | 8 May 2003 | British | 62 years |
| Robert Alan Devey | Director | 16 Nov 2009 | 5 Sept 2013 | British | 57 years |
| Robert Walker | Secretary | 6 Nov 1998 | 29 Jun 2000 | British | - |
| Roger Charles Ramsden | Director | 2 Nov 2005 | 31 May 2006 | British | 65 years |
| Roy Macdonald Nicolson | Director | 29 Mar 1989 | 29 Jun 2000 | British | 81 years |
| Stuart Macpherson Pender | Secretary | 1 Jan 1998 | 6 Nov 1998 | British | - |
| Susan Doreen Windridge | Secretary | 29 Jun 2000 | 24 May 2001 | British | - |
| Thomas Volney Boardman | Director | 7 Mar 2001 | 31 Mar 2010 | Usa | 72 years |
| Timothy James William Tookey | Director | 6 Sept 2002 | 16 Mar 2006 | British | 63 years |
| Tony Lee | Secretary | 24 May 2001 | 31 Oct 2001 | British | - |
| Tulsi Ratakonda Naidu | Director | 17 Oct 2014 | 31 May 2016 | Indian | 52 years |
| William Graeme Knox | Director | 29 Mar 1989 | 16 Oct 1995 | British | 80 years |
| William Proudfoot | Director | 29 Mar 1989 | 30 Jun 1990 | British | 93 years |