| Alexander Donald Burnett | Director | 17 May 2006 | 29 Feb 2008 | British | 75 years |
| Alexander Nathaniel Gerver | Director | 16 Aug 2000 | 1 Sept 2000 | British | 57 years |
| Andrew Johnston Stephen | Director | 1 Feb 2003 | 29 Feb 2008 | British | 59 years |
| Austin Flynn | Director | 1 Aug 2003 | 31 Mar 2005 | British | 59 years |
| Carole Hope | Director | 1 Feb 2003 | 31 Jan 2023 | British | 67 years |
| Charles Gerald Alexander Younger | Director | 29 Jan 1991 | 8 Jun 1998 | British | 67 years |
| Charles Richard Black | Director | 21 Dec 1988 | 1 Feb 1993 | British | 67 years |
| David William Calder | Director | 1 Aug 2003 | 31 Jul 2005 | British | 60 years |
| Eva Elisabeth Hogfors-stewart | Director | 1 Feb 1989 | 1 Feb 1993 | Swedish | 84 years |
| Francis Adam John More | Director | 21 Dec 1988 | 21 Jun 2001 | British | 77 years |
| George Burns | Director | 7 Jul 1995 | 29 Feb 2008 | British | 71 years |
| George Wardlaw Burnet | Director | 21 Dec 1988 | 25 Jun 1991 | British | 99 years |
| Graham William Richard Scott | Director | 9 Oct 2006 | 29 Feb 2008 | British | 60 years |
| Hugh Patrick Younger | Director | 21 Dec 1988 | 31 Jan 2023 | British | 68 years |
| Jennifer Elizabeth Mathias | Director | 21 Sept 2023 | 31 Dec 2023 | British | 52 years |
| John Kenneth Scott Moncrieff | Director | 21 Dec 1988 | 31 Jan 2023 | British | 75 years |
| John Morrison Hay Biggar | Director | 21 Dec 1988 | 8 Nov 1991 | British | 75 years |
| Jonathan Richard Miles Bell | Director | 16 Aug 2000 | 31 Jan 2003 | British | 55 years |
| Margaret Luise Stirling Locke | Director | 1 Feb 1989 | 16 Apr 1998 | British | 71 years |
| Mark Edward Stewart | Director | 16 Aug 2000 | 31 Oct 2006 | British | 55 years |
| Mbm Secretarial Services Limited | Corporate Secretary | 12 Jun 1997 | 29 Apr 2016 | United Kingdom | - |
| Michael Gordon Robson | Director | 17 Sept 1994 | 13 Jan 1998 | British | 74 years |
| Murray Beith Murray Ws | Corporate Secretary | 21 Dec 1988 | 13 Jun 1997 | - | - |
| Neil Michael Addis | Director | 1 Aug 2003 | 1 Mar 2005 | British | 55 years |
| Nigel James Pollock | Director | 21 Dec 1988 | 1 Aug 2003 | British | 78 years |
| Patrick John Ford | Director | 25 Jun 1991 | 30 Sept 1994 | British | 74 years |
| Patrick John Ford | Director | 1 Feb 1989 | 13 Jun 1990 | British | - |
| Richard Frederic Filleul | Director | 17 Sept 1994 | 31 Jan 2003 | British | 81 years |
| Robert Paul Stockton | Director | 21 Sept 2023 | 16 Jun 2025 | British | 61 years |
| Roderick James Wylie | Director | 17 May 2006 | 29 Feb 2008 | British | 69 years |
| Rodger Ridout Harvey-jamieson | Director | 21 Dec 1988 | 1 Feb 2002 | British | 79 years |
| Simon Thomas Lloyd | Director | 16 Aug 2000 | 16 Jun 2025 | British | 59 years |
| William Alexander Finlayson | Director | 17 Sept 1994 | 31 Jul 2005 | British | 75 years |
| William Berry | Director | 21 Dec 1988 | 1 Feb 2000 | British | 87 years |
| William Ruthven Gemmell | Director | N/A | 18 Dec 2024 | British | 69 years |