| Agnes Lawrie Addie Shonaig Macpherson | Director | 18 Nov 2015 | 31 Dec 2016 | British | 68 years |
| Alexander Maxwell Crombie | Director | 12 May 2017 | 31 Jul 2019 | British | 77 years |
| Alexander Roberts | Director | 10 Jul 2000 | 25 Jul 2003 | British | 77 years |
| Alexander Scott | Director | 1 Aug 1997 | 10 Jul 2000 | British | 81 years |
| Alexander Scott | Director | 25 Jul 2003 | 14 Jul 2016 | British | 81 years |
| Alick Stephen Kitchin | Director | 16 Nov 2001 | 31 Dec 2016 | British | 70 years |
| Alison Jane Patricia Goligher | Director | 12 May 2017 | 31 Jul 2019 | British | 61 years |
| Andrew Brett Milligan | Director | 17 Mar 2015 | 14 Jul 2017 | British | 70 years |
| Andrew Charles Walker | Director | 16 Nov 2001 | 9 Jun 2015 | British | 78 years |
| Angus Lee Mcguire | Secretary | 13 Jul 2018 | 31 Jul 2019 | - | - |
| Ann Marie Dalton-pillay | Director | 31 Jul 2019 | 30 Jun 2020 | Irish | 62 years |
| Charles Malcolm Brown | Director | 1 Aug 1997 | 19 Mar 2002 | British | 85 years |
| Charles Malcolm Brown | Director | 25 Jul 2003 | 15 Nov 2006 | British | 85 years |
| Derek Gardiner Brown | Secretary | 28 Jan 2000 | 9 Jun 2015 | British | - |
| Diana Arline Easley Montador | Director | 14 Jul 2017 | 31 Jul 2019 | American | 57 years |
| Donald Iain Mackay | Director | 1 Aug 1997 | 10 Jul 2000 | British | 89 years |
| Gavin Kennedy | Director | 10 Jul 2000 | 25 Jul 2003 | British | 86 years |
| Graeme Bissett | Director | 30 Mar 2004 | 2 Jun 2010 | British | 68 years |
| Gregor James Colville | Director | 3 Oct 2010 | 11 Apr 2012 | British | 49 years |
| Hbj Secretarial Limited | Corporate Nominee Secretary | 12 Mar 1997 | 1 Aug 1997 | - | - |
| Henderson Boyd Jackson Limited | Corporate Nominee Director | 12 Mar 1997 | 1 Aug 1997 | - | - |
| Hugh Sydney Mitchell | Director | 24 Jun 2014 | 31 Jul 2019 | British | 69 years |
| Iain David Thomas Vallance Of Tummel | Director | 1 Jan 2017 | 31 Jul 2019 | British | 83 years |
| John Edward Leonard Simmons | Director | 22 Apr 2002 | 22 Aug 2006 | British | 79 years |
| John Fernie | Director | 16 Nov 2001 | 30 Aug 2007 | British | 78 years |
| John Nicholas Beadle | Director | 3 Dec 2013 | 6 Oct 2014 | British | 69 years |
| John Nicholas Beadle | Director | 17 Mar 2015 | 20 Jul 2017 | British | 69 years |
| Julian David Clayton Jones | Director | 1 Jul 2015 | 14 Jul 2017 | British | 72 years |
| Keith Grant Lumsden | Director | 1 Aug 1997 | 29 Feb 2016 | British | 91 years |
| Kenneth Williamson Currie | Director | 1 Aug 1997 | 10 Jul 2000 | British | 73 years |
| Michael Kevin Moore | Director | 17 Nov 2017 | 31 Jul 2019 | British | 61 years |
| Michael Lewis Shaw | Director | 12 May 2017 | 31 Jul 2019 | British | 49 years |
| Morag Heggie | Director | 15 Nov 2006 | 17 Jun 2014 | British | 71 years |
| Neil Paterson Logan | Director | 12 May 2017 | 31 Jul 2019 | British | 49 years |
| Peter Liddell Wilson | Director | 1 Aug 1997 | 28 Nov 1997 | British | 84 years |
| Robert John Mcarthur Craik | Director | 25 Aug 2010 | 3 Dec 2013 | British | 72 years |
| Robert Macintosh | Director | 31 Jul 2019 | 31 Aug 2021 | British | 58 years |
| Robert Paul Reid | Director | 1 Feb 2001 | 18 Nov 2015 | British | 92 years |
| Ruth Jennifer Moir | Director | 25 Aug 2010 | 12 Mar 2017 | British | 63 years |
| Sandra Jesseman Howells | Secretary | 15 Dec 2015 | 13 Jul 2018 | - | - |
| Stefan George Kay | Director | 28 Nov 1997 | 31 Jul 2003 | British | 82 years |
| Stephen Liston Lindsay Paterson | Director | 1 Aug 1997 | 16 Nov 2001 | British | 68 years |
| Stephen Liston Lindsay Paterson | Secretary | 1 Aug 1997 | 28 Jan 2000 | British | - |
| Susan Michelle Clark | Director | 14 Jul 2017 | 31 Jul 2019 | British | 62 years |