| Alan James Reid Thomson | Director | 6 Jun 1992 | 27 Oct 1995 | British | 90 years |
| Alistair Ian Macrae | Secretary | 12 Feb 1990 | 8 Jan 1993 | British | - |
| Alistair Ian Macrae | Secretary | 1 Jan 2001 | 31 Aug 2007 | British | - |
| Alistair Linn Webster | Director | 16 Jan 2004 | 6 Aug 2009 | British | 72 years |
| Amy Charlotte Bone | Director | 24 Nov 2016 | 23 Feb 2018 | British | 42 years |
| Andrew Hulme | Director | 23 Feb 2018 | 9 Mar 2020 | British | 45 years |
| Andrew John Cumming | Director | 6 Aug 2009 | 31 Dec 2014 | British | 71 years |
| Andrew William Geczy | Director | 10 Nov 2009 | 16 Jan 2013 | American | 62 years |
| Antony Gerald Shewell Brian | Secretary | 16 Jun 1989 | 12 Feb 1990 | British | - |
| Archibald Turner Gibson | Director | 16 Jun 1989 | 5 Jun 1992 | British | 93 years |
| Ceri Richards | Director | 1 May 2008 | 6 Aug 2009 | British | 67 years |
| Colin Matthew | Director | 1 Jan 2001 | 14 Oct 2002 | British | 75 years |
| David Bruce Pattullo | Director | 16 Jun 1989 | 28 Feb 1998 | British | 87 years |
| David Dermot Hennessey | Secretary | 30 Jun 2016 | 8 Jan 2024 | - | - |
| David Miller | Director | 1 May 2008 | 6 Aug 2009 | British | 63 years |
| David Warren Godfrey | Director | 6 Aug 2009 | 16 Jan 2012 | British | 75 years |
| Edward James Morrison | Director | 30 Nov 2001 | 22 Sept 2006 | British | 73 years |
| Gavin George Masterton | Director | 1 Jan 2001 | 15 Jun 2001 | British | 84 years |
| George Edward Mitchell | Director | 14 Oct 2002 | 31 Dec 2005 | British | 75 years |
| George Truett Tate | Director | 6 Aug 2009 | 6 Feb 2012 | American | 75 years |
| Graeme Robert Andrew Shankland | Director | 2 Feb 2006 | 26 May 2010 | British | 65 years |
| Harold Francis Baines | Director | 19 Nov 2001 | 14 Oct 2002 | British | - |
| Hugh Carroll Mcmillan | Director | 1 Jan 2001 | 1 May 2008 | British | 68 years |
| Hugh Kenneth Young | Director | 16 Jun 1989 | 15 Mar 1996 | British | 89 years |
| Iain William St Clair Scott | Director | 16 Jun 1989 | 12 Jan 1990 | British | 79 years |
| Iain William St Clair Scott | Director | 1 Sept 1997 | 30 Sept 2000 | British | 79 years |
| Ian Robertson | Director | 30 Nov 2001 | 29 Jun 2007 | British | 76 years |
| James Paxton Malcolm | Director | 1 Jan 2001 | 5 Nov 2001 | British | 84 years |
| James Robin Browning | Director | 9 Feb 1990 | 31 Aug 1997 | British | 86 years |
| Jennifer Elizabeth Nielsen | Secretary | 31 Aug 2007 | 24 Jun 2012 | British | - |
| John Conway Moran | Director | 1 May 2008 | 6 Aug 2009 | British | 59 years |
| John Stewart Hunter | Director | 15 Mar 1996 | 19 Nov 2001 | British | 77 years |
| John Stewart Hunter | Secretary | 4 Sept 1995 | 15 Feb 1996 | British | - |
| Jonathan Britton | Director | 6 Aug 2009 | 24 Jun 2012 | British | 71 years |
| Karen Margaret Bothwell | Director | 22 Sept 2006 | 6 Aug 2009 | British | 63 years |
| Karen Margaret Bothwell | Director | 2 Jul 2012 | 24 Nov 2016 | British | 63 years |
| Karen Margaret Bothwell | Secretary | 8 Jan 1993 | 4 Sept 1995 | British | - |
| Lindsay John Town | Director | 2 Feb 2006 | 22 Sept 2006 | British | 71 years |
| Lloyds Secretaries Limited | Corporate Secretary | 24 Jun 2012 | 15 Jan 2016 | United Kingdom | - |
| Lysanne Jane Warren Black | Secretary | 15 Feb 1996 | 1 Jan 2001 | British | - |
| Malcolm Stewart Macdougall | Director | 16 Jun 1989 | 9 May 1990 | British | 93 years |
| Michael Henry Ellis | Director | 30 Nov 2001 | 14 Oct 2002 | British | 74 years |
| Michael Wooderson | Director | 1 Jan 2001 | 20 Feb 2006 | British | 71 years |
| Monica Marian De Vries | Director | 10 Mar 2020 | 15 Dec 2021 | Dutch | 53 years |
| Paul Gittins | Secretary | 15 Jan 2016 | 30 Jun 2016 | - | - |
| Peter Alexander Burt | Director | 16 Jun 1989 | 14 Oct 2002 | British | 81 years |
| Peter Anthony Shepherd | Director | 11 Jul 2013 | 31 Jul 2016 | British | 51 years |
| Peter Joseph Cummings | Director | 1 Jan 2001 | 16 Jan 2009 | British | 70 years |
| Robert James Mee | Director | 1 Jan 2001 | 15 Jan 2002 | British | 74 years |
| Ronald Lamont Adam | Director | 3 Nov 2006 | 23 Oct 2008 | British | 66 years |
| Stephen Alexander Campbell | Director | 18 Oct 2006 | 29 Dec 2008 | British | 60 years |
| Stephen Robert Shelley | Director | 1 Feb 2012 | 23 Aug 2016 | British | 58 years |
| Stewart Fraser Livingston | Director | 1 May 2008 | 13 Aug 2009 | British | 61 years |
| Thomas Alexander Abraham | Director | 16 Jan 2004 | 22 Sept 2006 | British | 75 years |
| William Gordon Mcqueen | Director | 15 Apr 1997 | 14 Oct 2002 | British | 79 years |