| Agnes Lawrie Addie Shonaig Macpherson | Director | 25 Aug 2004 | 30 Sept 2014 | British | 68 years |
| Alasdair Charles Macaulay Rankin | Director | 29 Jul 2015 | 2 Aug 2017 | Scottish | 70 years |
| Alistair Fleming | Director | 31 May 1998 | 14 Feb 2001 | British | 82 years |
| Andrew Alexander Scobbie | Director | 20 May 2003 | 24 May 2007 | British | 75 years |
| Angus John Mackay | Director | 29 May 1997 | 9 Jun 1999 | British | 62 years |
| Colin Michael Donald | Director | 29 Jun 1995 | 1 Jul 1995 | British | 62 years |
| Cpfa Mcgougan | Director | 31 Mar 1995 | 30 May 1997 | British | 76 years |
| Daphne Mary Walker Sleigh | Director | 29 May 1997 | 16 Dec 2002 | British | 89 years |
| David Crichton | Director | 31 Jan 1997 | 31 Mar 1997 | British | 71 years |
| Desmond Michael Bonnar | Director | 17 Oct 1991 | 18 Dec 1996 | British | 79 years |
| Desmond Michael Bonnar | Director | 16 Jan 1997 | 25 Sept 1998 | British | 79 years |
| Donald Craig Anderson | Director | 30 May 1996 | 9 Jun 1999 | British | 64 years |
| Edward Brian Fallon | Director | 20 May 2003 | 25 Jun 2003 | British | 79 years |
| Elizabeth Maginnis | Director | 24 May 2007 | 7 Sept 2008 | British | 73 years |
| Francis Wright Ross | Director | 24 May 2012 | 25 Jun 2015 | British | 67 years |
| Francis Wright Ross | Director | 30 Jun 2022 | 11 Jan 2023 | British | 67 years |
| Gavin Knight Barrie | Director | 2 Aug 2017 | 28 Mar 2018 | British | 69 years |
| George Alfred Gordon | Director | 27 Mar 2019 | 30 Jun 2022 | British | 65 years |
| George Edward Walker | Director | 30 Sept 2015 | 29 Nov 2016 | British | 65 years |
| Gordon John Munro | Director | 24 May 2012 | 2 Aug 2017 | British | 68 years |
| Iain Whyte | Director | 24 Aug 2010 | 24 May 2012 | British | 58 years |
| Iain Whyte | Director | 16 Dec 2002 | 27 Jul 2010 | British | 58 years |
| Ian Perry | Director | 27 May 1999 | 20 May 2003 | British | 75 years |
| James Lindsay Walls | Director | 31 Oct 1997 | 16 Dec 2002 | British | 85 years |
| James Mcintyre | Director | 31 May 2000 | 27 Sept 2000 | British | 66 years |
| James Mclean Henderson Mcfarlane | Director | 17 Oct 1991 | 16 Jan 1997 | British | 73 years |
| James Mclean Henderson Mcfarlane | Director | 13 May 2003 | 16 Feb 2022 | British | 73 years |
| Jennifer Ann Dawe | Director | 27 May 1999 | 24 May 2012 | British | 81 years |
| John Barrett | Director | 27 Jul 1998 | 9 Jun 1999 | British | 72 years |
| Katherine Rosa Campbell | Director | 30 May 2017 | 14 Feb 2019 | British | 46 years |
| Keith Taylor Geddes | Director | 6 Dec 1994 | 31 Mar 1996 | British | 74 years |
| Lesley Adelaide Hinds | Director | 13 May 1993 | 29 May 1997 | British | 70 years |
| Lesley Adelaide Hinds | Director | 18 Sept 2008 | 24 May 2012 | British | 70 years |
| Leslie Milne Florence | Director | 1 Jun 2015 | 29 Mar 2021 | British | 72 years |
| Lezley Marion Cameron | Director | 27 May 1999 | 20 May 2003 | British | 62 years |
| Lorna Shiels | Director | 26 Jun 2003 | 24 May 2007 | British | 55 years |
| Marek Jerzy Lazarowicz | Director | 7 Apr 1992 | 13 May 1993 | British | 73 years |
| Marshall Cameron Dallas | Director | 1 Oct 2014 | 26 May 2025 | British | 61 years |
| Maureen Margaret Child | Director | 9 Jun 1999 | 24 May 2007 | British | 76 years |
| Md Secretaries Limited | Corporate Nominee Director | 13 May 1991 | 17 Oct 1991 | United Kingdom | - |
| Md Secretaries Limited | Corporate Nominee Secretary | 13 May 1991 | 20 Mar 1992 | United Kingdom | - |
| Md Secretaries Limited | Corporate Nominee Secretary | 27 Jan 1995 | 12 May 2015 | United Kingdom | - |
| Peter Henry Stillwell | Director | 31 May 1998 | 31 Mar 2000 | British | 89 years |
| Robert Alexander Marshall | Director | 17 Oct 1991 | 31 Mar 1995 | British | 94 years |
| Robert Christopher Aldridge | Director | 29 May 1997 | 9 Jun 1999 | British | 70 years |
| Robert Christopher Aldridge | Director | 24 Nov 1999 | 2 Aug 2017 | British | 70 years |
| Stephanie Jane Harley Smith | Director | 2 Aug 2017 | 6 Apr 2021 | British | 40 years |
| Stewart Alexander Henderson | Director | 7 Apr 1992 | 31 May 1996 | British | 79 years |
| Tom Buchanan | Director | 24 May 2007 | 3 Apr 2013 | British | 68 years |
| William Ernest Cook | Director | 24 May 2012 | 21 Nov 2013 | British | 72 years |
| William Ross | Director | 17 Oct 1991 | 20 Mar 1992 | British | 85 years |