| Alexander Hamilton Dyce | Director | 13 Jun 2005 | 31 Oct 2005 | British | 74 years |
| Alistair Robert Morris | Director | 16 Mar 2007 | 27 Feb 2009 | British | 57 years |
| Allan Maclean | Director | 2 Aug 1993 | 15 Apr 1996 | British | 70 years |
| Allan Mcewan | Director | 8 Nov 2000 | 14 Oct 2002 | British | 56 years |
| Andrew James Baldock | Director | 8 Nov 2000 | 6 Jan 2003 | British | 67 years |
| Arthur David Speechly | Director | 8 Dec 1991 | 1 Mar 1993 | British | 84 years |
| Charles Harold Brown | Director | 8 Nov 2000 | 22 Jul 2002 | British | 88 years |
| David Charles Flinders | Director | 2 Aug 1993 | 21 Aug 1995 | British | 73 years |
| David Edward Fallon | Secretary | 31 Dec 1993 | 21 Aug 1995 | British | - |
| David Mclean Currie | Director | 26 Feb 2009 | 15 May 2013 | British | 54 years |
| David Phillip Monks | Director | 5 Oct 2004 | 13 Jun 2005 | British | 65 years |
| David Robert Brown | Director | 26 Nov 1993 | 8 Dec 1994 | British | 65 years |
| Elaine Fiona Hodgson | Director | 15 Apr 1996 | 19 Jul 2000 | British | 55 years |
| Frances Atkins | Director | 8 Nov 2000 | 6 Jan 2003 | British | 77 years |
| Gary Ferguson Moloney | Director | 15 Apr 1996 | 31 Dec 2000 | British | 62 years |
| Gary James John Trainer | Director | 1 Mar 2002 | 15 Feb 2007 | British | 59 years |
| George Beveridge | Director | 1 Mar 1993 | 14 Jul 1993 | British | 93 years |
| Iain Donald John Mackay | Director | 21 Aug 1995 | 1 Aug 1999 | British | 78 years |
| Ian Johnston Ferguson | Director | 21 Aug 1995 | 31 Dec 2000 | British | 70 years |
| Ian Johnston Ferguson | Director | 6 Jan 2003 | 5 Mar 2007 | British | 70 years |
| Ian Pate | Director | 1 Mar 1993 | 2 Aug 1993 | British | 81 years |
| Ian Pate | Director | 8 Nov 2000 | 6 Jan 2003 | British | 81 years |
| Ian Robert Nairn | Director | 15 Apr 1996 | 14 Sept 1998 | British | 65 years |
| Ian Sinclair Cornwall | Director | 21 Aug 1995 | 31 Dec 2000 | British | 69 years |
| Jacqueline Marie Meeten | Director | 14 Oct 2002 | 6 Jan 2003 | British | 57 years |
| James Gordon | Director | 8 Nov 2000 | 28 Aug 2006 | British | 56 years |
| James Murdo Tolmie | Director | 8 Nov 2000 | 6 Jan 2003 | British | 83 years |
| James Rae Croall | Director | 1 Mar 1993 | 15 Apr 1996 | British | 69 years |
| James Tait Archibald | Director | 1 Mar 1993 | 12 Nov 1993 | British | 77 years |
| James William Morris | Director | 8 Nov 2000 | 6 Jan 2003 | British | 85 years |
| John Patrick Cadwallader | Director | 8 Dec 1991 | 1 Mar 1993 | British | 83 years |
| Jolyon David Hewer Griffiths | Director | 2 Aug 1993 | 21 Aug 1995 | British | 64 years |
| Mark Anthony Kibblewhite | Director | 13 Jun 2005 | 1 Apr 2010 | British | 63 years |
| Michael Alan Hollands | Director | 8 Dec 1991 | 1 Mar 1993 | British | 89 years |
| Michael Louis Murray | Director | 2 Aug 1993 | 26 Nov 1993 | British | 64 years |
| Michael Robert Nesbit Evans | Director | 8 Dec 1991 | 1 Mar 1993 | British | 90 years |
| Michael Robert Nesbit Evans | Secretary | 8 Dec 1991 | 1 Mar 1993 | British | - |
| Michael Timothy Bolsover | Director | 20 Oct 2003 | 1 Dec 2004 | British | 72 years |
| Peter Hudson Spence Kelley | Director | 8 Dec 1991 | 30 Jan 1991 | British | 83 years |
| Peter James Kellock | Director | 4 Feb 1994 | 15 Apr 1996 | British | 57 years |
| Ramsay Alexander Urquhart | Director | 1 Apr 2010 | 31 May 2010 | British | 60 years |
| Richard Daniel Pollock | Director | 15 Apr 1996 | 23 Jul 1996 | British | 59 years |
| Richard Henry Philipps | Director | 15 May 2013 | 9 Feb 2018 | British | 63 years |
| Robert Paul Stockton | Director | 20 Oct 2003 | 1 Jul 2005 | British | 60 years |
| Roger Joan Mills | Director | 8 Dec 1991 | 31 May 1992 | British | 86 years |
| Rowan Richard Braithwaite | Director | 8 Nov 2000 | 6 Jan 2003 | British | 69 years |
| Sandra Campbell Saunders | Director | 2 Aug 1993 | 14 May 1996 | British | 78 years |
| Stanley Livingston Vinter | Director | 15 Apr 1996 | 28 Feb 2003 | British | 82 years |
| Stephen Roy Slocombe | Secretary | 21 Oct 2003 | 1 Sept 2005 | British | - |
| Stuart David Biggart | Director | 8 Nov 2000 | 6 Jan 2003 | Scottish | 69 years |
| Stuart Robert Telfer | Director | 15 Apr 1996 | 8 Dec 1998 | British | 63 years |
| Susan Margaret Ambrose | Secretary | 21 Aug 1995 | 21 Oct 2003 | British | - |
| Thomas Mitchell | Director | 8 Nov 2000 | 6 Jan 2003 | British | 66 years |
| Timothy John Grist Lewis | Director | 2 Aug 1993 | 21 Aug 1995 | British | 77 years |