| Alan Christopher Burton | Director | 22 Apr 2004 | 31 Dec 2013 | British | 83 years |
| Alan Powell | Director | 3 Apr 1996 | 15 Nov 2011 | British | 78 years |
| Andrew Kerr Stewart-roberts | Director | 20 Jan 1992 | 16 Nov 1992 | British | 95 years |
| Christine Anne Chandler | Nominee Director | 11 Nov 1991 | 13 Dec 1991 | British | 71 years |
| Daron James Pearce | Director | 11 Aug 2009 | 6 Apr 2011 | British | 62 years |
| David Ernest Leonard England | Director | 22 May 2000 | 8 Nov 2022 | British | 78 years |
| Donald Edward Gould | Director | 25 Feb 2009 | 11 Aug 2009 | United States Citizen | 67 years |
| Donald Yelland | Director | 21 Dec 1992 | 15 Jun 1993 | British | 82 years |
| Gordon Alan Lindsay | Director | 31 Oct 1999 | 31 Dec 2001 | British | 83 years |
| Grant George Alexander Chambers | Director | 28 Mar 2011 | 18 Apr 2018 | British | 59 years |
| Hugh Roderick Ward | Director | 22 Feb 2005 | 31 Jan 2021 | British | 74 years |
| Ian Bruce Marshall | Secretary | 13 Dec 1991 | 25 Aug 1995 | British | - |
| Jeffrey Tessler | Director | 31 Oct 1999 | 21 May 2002 | American | 72 years |
| Jeffrey William James Coleman | Director | 29 Dec 1995 | 29 Oct 1999 | British | 79 years |
| John Charles Tisdall | Director | 8 Aug 2018 | 30 May 2023 | British | 57 years |
| John Francis Trueman | Director | 12 Jul 1996 | 29 Oct 1999 | British | 83 years |
| John Parsloe | Director | 13 Dec 1991 | 1 Mar 2004 | British | 87 years |
| John William Jack | Director | 30 May 2023 | 31 Dec 2023 | British | 60 years |
| Joseph Gerard Patrick Wheatley | Director | 17 Jan 2005 | 16 Jan 2008 | Irish | 66 years |
| Keith Nigel Grant | Secretary | 10 Sept 1998 | 30 Nov 2000 | British | - |
| Lloyd Aubrey Dyett | Director | 8 Apr 2004 | 30 Apr 2010 | British | 72 years |
| Mark Shaunessy Kerns | Director | 2 Oct 2000 | 17 Sept 2003 | British | 66 years |
| Martin Alan Roberts | Director | 7 Aug 2018 | 31 Jul 2019 | British | 67 years |
| Michael Robert Hardwick | Director | 15 Jul 1993 | 2 Oct 1995 | British | 74 years |
| Michael Robert Valentine | Director | 16 Nov 1992 | 1 Mar 2004 | British | 98 years |
| Neil Richard Stocks | Secretary | 17 Apr 1996 | 22 Apr 1997 | British | - |
| Nicholas Stephen Parkes | Director | 16 Oct 2001 | 8 Feb 2005 | British | 70 years |
| Nigel David Taylorson | Director | 17 Aug 2009 | 5 Apr 2011 | British | 77 years |
| Peter Craft | Director | 25 Feb 2011 | 23 Mar 2015 | British | 71 years |
| Peter Farrelly | Director | 20 Jan 1992 | 16 Dec 1992 | British | 86 years |
| Robert Alec Jackman | Director | 19 Mar 1997 | 26 Sept 2001 | British | 73 years |
| Robert Alec Jackman | Secretary | 23 Apr 1998 | 10 Sept 1998 | British | - |
| Robert Arthur Reeve | Nominee Director | 11 Nov 1991 | 13 Dec 1991 | British | 95 years |
| Robert Edward Stuart Littlejohn | Secretary | 22 Apr 1997 | 23 Apr 1998 | British | - |
| Roger Cheston Clifton | Secretary | 25 Aug 1995 | 17 Apr 1996 | British | - |
| Stephen John Richardson | Director | 15 Jan 2002 | 21 May 2002 | British | 73 years |
| Thomas Craufurd Colville | Director | 13 Dec 1991 | 23 Jan 1996 | British | 83 years |
| Trusec Limited | Corporate Nominee Secretary | 11 Nov 1991 | 13 Dec 1991 | United Kingdom | - |