| Alan Paul Busson | Secretary | 6 Mar 2006 | 29 Sept 2006 | British | - |
| Alan Robert Young | Director | 28 Aug 1991 | 31 Jul 1995 | British | 88 years |
| Alan Robert Young | Director | 6 Mar 1998 | 30 Apr 2001 | British | 88 years |
| Alasdair Christopher Gillies | Director | 3 Feb 1993 | 5 Dec 1995 | British | 68 years |
| Alasdair Christopher Gillies | Director | 4 Apr 2003 | 15 Apr 2008 | British | 68 years |
| Alexander Park Leitch | Director | 13 Sept 2000 | 21 Dec 2000 | British | 79 years |
| Amanda Louise Knott | Secretary | 29 Sept 2006 | 22 May 2013 | British | - |
| Ann Claire Blundell | Secretary | 22 May 2013 | 10 Feb 2014 | - | - |
| Brian Michael Thomas | Director | 15 Jan 1998 | 11 Dec 1998 | British | 74 years |
| Brian Michael Thomas | Director | 13 Sept 2000 | 30 Jul 2001 | British | 74 years |
| Christopher John Willett | Director | 6 Sept 2000 | 12 Feb 2001 | British | 79 years |
| Christopher Keogh | Director | 6 Sept 2000 | 1 Aug 2001 | British | 67 years |
| Christopher Walter Laidlaw | Director | 11 Dec 1998 | 30 Jul 1999 | British | 74 years |
| Corina Katherine Ross | Secretary | 4 Feb 2011 | 22 May 2013 | British | - |
| David John Etherington | Director | 24 Sept 2003 | 15 Apr 2008 | British | 69 years |
| David Nigel Tetlow | Director | 15 Jan 1998 | 29 Aug 2000 | British | 74 years |
| David Perrott Sims | Director | 15 Jan 1998 | 4 Sept 2000 | British | 68 years |
| David Perrott Sims | Director | 4 Apr 2003 | 15 Apr 2008 | British | 68 years |
| David Ross Carrie | Director | 15 Jan 1998 | 26 Jul 2001 | United Kingdom | 62 years |
| David Ross Carrie | Director | 4 Apr 2003 | 31 Dec 2005 | United Kingdom | 62 years |
| Helen Frances Leigh Rogers | Secretary | 14 Jul 2008 | 2 Dec 2011 | British | - |
| Hugh Royston Jenkins | Director | 6 Mar 1998 | 30 Apr 2001 | British | 93 years |
| Ian Ritchie | Secretary | 22 May 2013 | 10 Feb 2014 | - | - |
| James Anthony Wiltshire | Secretary | 10 Mar 1998 | 31 May 1999 | British | - |
| James Douglas Sutherland | Director | 28 Jun 2013 | 20 Oct 2017 | British | 52 years |
| James Kingsley Reeve | Director | 13 Sept 2000 | 31 Mar 2004 | British | 69 years |
| James Richard Sykes | Director | 21 Oct 2005 | 25 Mar 2009 | British | 65 years |
| Jayne Michelle Meacham | Secretary | 1 Nov 2006 | 2 May 2008 | British | - |
| Jeremy Ward Grayburn | Director | 15 Sept 2000 | 6 Apr 2001 | British | 74 years |
| John Antony Cacchioli | Director | 13 Sept 2000 | 7 Aug 2001 | British | 68 years |
| John Peter Jewitt | Director | 5 Dec 1995 | 13 May 1997 | British | 72 years |
| Jonathan Vaughan-williams | Director | 25 Mar 2014 | 28 Apr 2017 | British | 59 years |
| Keith Reginald Baldwin | Director | 28 Aug 1991 | 27 Jan 1998 | British | 78 years |
| Keith Reginald Baldwin | Director | 24 Oct 2001 | 31 Aug 2003 | British | 78 years |
| Lawrence Churchill | Director | 5 Dec 2002 | 22 Jun 2004 | British | 80 years |
| Lily Olisa Holding | Secretary | 22 Jun 2004 | 19 May 2005 | British | - |
| Marianne Fitzjohn | Director | 4 Apr 2003 | 24 Sept 2003 | Danish | 60 years |
| Martin David Moule | Director | 24 Sept 2003 | 25 Apr 2005 | British | 71 years |
| Martin Lindsay Bride | Director | 27 Jan 2006 | 15 Apr 2008 | British | 63 years |
| Michael Andrew Ferns | Director | 4 Apr 2003 | 6 Sept 2004 | British | 62 years |
| Neil James Evans | Director | 15 Apr 2008 | 25 Mar 2014 | British | 69 years |
| Nigel Lowe | Director | 25 Mar 2009 | 28 Jun 2013 | British | 74 years |
| Nigel Lowe | Secretary | 19 May 2005 | 6 Mar 2006 | British | - |
| Paulus Van De Geijn | Director | 6 Sept 2004 | 27 Apr 2006 | Dutch | 80 years |
| Peter Charles Campbell | Director | 13 Sept 2000 | 10 Aug 2001 | British | 68 years |
| Peter Charles Howe | Secretary | 28 Aug 1991 | 10 Mar 1998 | British | - |
| Peter Charles Howe | Secretary | 31 May 1999 | 22 Jun 2004 | British | - |
| Peter Ellen | Director | 13 May 1997 | 27 Jan 1998 | British | 74 years |
| Peter John Steer | Director | 5 Dec 1995 | 27 Jan 1998 | British | 73 years |
| Phil Andrew Hodkinson | Director | 28 Aug 1991 | 3 Feb 1993 | British | 68 years |
| Phil Andrew Hodkinson | Director | 5 Dec 1995 | 27 Jan 1998 | British | 68 years |
| Phil Andrew Hodkinson | Director | 11 Dec 1998 | 15 Nov 2000 | British | 68 years |
| Philip Smith | Director | 28 Aug 1991 | 20 Sept 1996 | British | 79 years |
| Philip Smith | Director | 15 Jan 1998 | 12 Oct 1998 | British | 79 years |
| Raymond Greenshields | Director | 21 Dec 2000 | 14 Oct 2002 | Australian | 79 years |
| Rodney Malcolm Cook | Director | 18 Sept 2001 | 14 Oct 2002 | British/australian | 69 years |
| Shayne Paul Deighton | Director | 11 Dec 1998 | 20 Dec 2000 | British | 67 years |
| Steven James Colsell | Director | 7 Feb 2001 | 6 Sept 2004 | British | 62 years |
| Vincent John Jerrard | Director | 15 Jan 1998 | 4 Apr 2003 | British | 71 years |