| Adrian James Macandrew Coats | Director | 11 Jun 2008 | 31 Dec 2009 | British | 71 years |
| Agnes Robson | Director | 1 Apr 1989 | 30 Mar 1990 | British | 80 years |
| Alan Victor Richardson | Director | 1 Apr 1999 | 31 Dec 2001 | British | 80 years |
| Andrew Ross Mitchell | Secretary | 1 Jul 1993 | 30 Sept 2005 | British | - |
| Anthony Frederick Pexton | Director | 30 Mar 1990 | 31 Dec 1992 | British | 93 years |
| Charles Andrew Berry | Director | 1 Apr 1999 | 6 Sept 2005 | British | 74 years |
| Charles Murray Stuart | Director | 30 Mar 1990 | 2 Aug 1999 | British | 93 years |
| Colin Hyndmarsh Black | Director | 30 Mar 1990 | 30 Mar 1990 | British | 96 years |
| Colin Hyndmarsh Black | Director | 10 Oct 1990 | 26 Jul 1995 | British | 96 years |
| Daniel Alcain | Director | 20 Aug 2012 | 4 Feb 2016 | Spanish | 53 years |
| David Lewis Wark | Director | 4 Feb 2016 | 31 Jul 2021 | British | 63 years |
| David Thomas Nish | Director | 13 Dec 1999 | 6 Sept 2005 | British | 66 years |
| Donald James Mcpherson | Secretary | 30 Sept 2005 | 30 Jun 2006 | British | - |
| Donald James Wright | Director | 31 Dec 2009 | 31 Dec 2024 | British | 62 years |
| Donald John Miller | Director | 30 Mar 1990 | 31 Jul 1992 | British | 99 years |
| Duncan Arthur Speirs Maclaren | Secretary | 30 Mar 1990 | 1 Jun 1990 | British | - |
| Duncan Whyte | Director | 27 Mar 1990 | 31 May 1999 | British | 80 years |
| Ewen Cameron Stewart Macpherson | Director | 1 Sept 1996 | 2 Aug 1999 | British | 84 years |
| George Cartner Duke | Director | 1 Apr 1989 | 30 Mar 1990 | British | 82 years |
| George Cartner Duke | Secretary | 1 Apr 1989 | 30 Mar 1990 | British | - |
| Graham Burgher Aird Watt | Secretary | 30 Jul 1990 | 30 Jun 1993 | British | - |
| Ian Hamish Macdonald | Director | 30 Mar 1990 | 26 Feb 1992 | British | 100 years |
| Ian Mathieson Hamilton Preston | Director | 30 Mar 1990 | 28 Feb 1995 | British | 94 years |
| Ian Robinson | Director | 1 Mar 1995 | 4 May 2001 | British | 84 years |
| Ian Simon Macgregor Russell | Director | 5 Apr 1994 | 16 Feb 2006 | British | 73 years |
| Ian Wood Thomson | Secretary | 1 Jun 1990 | 30 Jul 1990 | British | - |
| James Archibald Scott | Director | 27 May 1992 | 24 Jul 1996 | British | 94 years |
| John Parnaby | Director | 30 Sept 1994 | 2 Aug 1999 | British | 89 years |
| Keith Robertson Cochrane | Director | 13 Jun 2005 | 30 Jun 2006 | British | 61 years |
| Kenneth Leslie Vowles | Director | 30 Sept 1994 | 31 Mar 2002 | British | 84 years |
| Mair Barnes | Director | 1 Apr 1998 | 2 Aug 1999 | British | 82 years |
| Margaret Ann Jay | Director | 1 Sept 1996 | 13 May 1997 | British | 87 years |
| Michael Andrew Smith | Director | 27 Mar 1990 | 31 Aug 1994 | British | 100 years |
| Michael John Kinski | Director | 1 Dec 1992 | 7 Apr 1998 | British | 74 years |
| Nicholas Christopher Dwelly Kuenssberg | Director | 30 Mar 1990 | 23 Jul 1997 | British | 84 years |
| Nicholas Wenham Horler | Director | 23 Sept 2008 | 12 Oct 2010 | British | 67 years |
| Nicola Mary Connelly | Director | 20 Oct 2021 | 18 Jun 2024 | British | 56 years |
| Paul Anthony Brady | Director | 1 Apr 1989 | 30 Mar 1990 | British | 77 years |
| Peter Lewis Gregson | Director | 13 Dec 1996 | 2 Aug 1999 | British | 90 years |
| Ramon Fernandez Olmedo | Director | 31 Mar 2008 | 20 Aug 2012 | Spanish | 60 years |
| Robert Arthur Benns | Director | 4 Jul 2007 | 31 Mar 2008 | British | 58 years |
| Ronald Garrick | Director | 26 Feb 1992 | 30 Apr 1999 | British | 86 years |
| Ronnie Edward Mercer | Director | 9 Apr 2002 | 30 Mar 2005 | British | 82 years |
| Rupert James Stanley | Director | 12 Sept 2001 | 3 May 2006 | British | 72 years |
| Secretary Of State For Scotland | Corporate Director | 27 Mar 1990 | 18 Jun 1991 | - | - |
| Sheelagh Jane Duffield | Director | 20 Mar 2006 | 26 Oct 2007 | British | 60 years |
| Sheelagh Jane Duffield | Secretary | 30 Jun 2006 | 26 Oct 2007 | British | - |
| Simon Jonathan Lowth | Director | 13 Jun 2005 | 23 Apr 2007 | British | 65 years |
| Stephen Wilson Dunn | Director | 26 Oct 2007 | 30 Jun 2008 | British | 66 years |
| Susan Mary Reilly | Director | 29 Aug 2006 | 30 Jun 2008 | British | 65 years |