| Ailsa Mary Stroud | Director | 23 Dec 1998 | 25 Aug 1999 | British | 56 years |
| Alastair James Gordon | Director | 7 Nov 1994 | 7 Jan 1999 | British | 84 years |
| Alastair James Gordon | Director | 27 Aug 1999 | 31 May 2000 | British | 84 years |
| Alistair Barclay Wilson | Director | 15 Feb 2002 | 6 Jul 2009 | British | 83 years |
| Andrew Christopher Lapping | Director | 25 Jun 2001 | 7 Nov 2006 | British | 62 years |
| Brian Reid | Nominee Secretary | 7 Nov 1994 | 7 Nov 1994 | British | - |
| Charlotte Reynolds | Director | 26 Aug 1999 | 7 Sept 2001 | British | 48 years |
| Donald Ross Macdonald | Director | 7 Nov 1994 | 15 Jun 2007 | British | 87 years |
| Eric Hugh Ross | Secretary | 7 Nov 1994 | 28 Jul 1999 | British | - |
| Heather Jane Williams | Director | 22 Sept 2015 | 15 Feb 2021 | British | 57 years |
| Jane Alexandra Waddell | Director | 7 Nov 1994 | 31 Jul 1998 | British | 60 years |
| Jonathan Martin Austen | Secretary | 3 Jun 2013 | 1 Jul 2016 | - | - |
| Jonathan Martin Austen | Director | 1 May 2009 | 1 Jul 2016 | British | 69 years |
| June Patricia Mcdowall | Director | 6 Dec 2001 | 22 Jul 2011 | British | 63 years |
| Michael John Chicken | Director | 7 Nov 1994 | 1 Oct 1998 | British | 65 years |
| Miranda Anne Kelly | Director | 19 Feb 1999 | 28 Jun 2013 | British | 55 years |
| Miranda Anne Kelly | Secretary | 28 Jul 1999 | 22 Aug 2011 | British | - |
| Nigel James Cavers Turnbull | Director | 12 Apr 2004 | 11 Sept 2006 | British | 82 years |
| Robert Edward Lane | Director | 15 Dec 2006 | 28 Aug 2015 | British | 59 years |
| Robert Fredrik Martin Adair | Director | 7 Nov 1994 | 4 Jul 1996 | British | 69 years |
| Robin Edward Gibson | Director | 7 Nov 1994 | 31 Aug 1999 | British | 60 years |
| Sean Dominic Hardy Cufley | Director | 1 Feb 2001 | 23 Dec 2002 | British | 70 years |
| Siobhan Margaret Fulton | Director | 10 Sept 2002 | 24 Jun 2011 | Irish | 52 years |
| Stephen Mabbott | Nominee Director | 7 Nov 1994 | 7 Nov 1994 | British | 75 years |
| Thomas Gerard Walsh | Secretary | 22 Aug 2011 | 1 Jul 2013 | - | - |
| Thomas Gerard Walsh | Director | 18 Oct 2002 | 1 Jul 2013 | Irish | 64 years |
| Tracey Margaret Ginn | Director | 7 Nov 1994 | 24 Apr 1998 | British | 61 years |