| Aileen Norma Taylor | Director | 1 Aug 2007 | 17 Sept 2010 | British | 53 years |
| Alan Alexander Calder | Director | 29 Mar 1989 | 4 Apr 1997 | British | 66 years |
| Alan Ewing Mills | Director | 13 Jun 2002 | 11 Dec 2012 | British | 68 years |
| Alan Ewing Mills | Secretary | 31 May 1991 | 29 Jul 1994 | British | - |
| Alan Robertson Peattie | Director | 29 Mar 1989 | 2 Sept 1991 | British | 92 years |
| Alan Roy Hawkins | Director | 5 Jun 1997 | 1 Jun 1999 | British | 71 years |
| Alan Wallace Mckean | Director | 26 Apr 1990 | 20 Jun 2008 | British | 71 years |
| Alan Wallace Mckean | Secretary | 26 Apr 1990 | 31 May 1991 | British | - |
| Alastair Robin Tannock | Director | 11 Mar 1991 | 2 Sept 1991 | British | 65 years |
| Amanda Mary O'brien | Director | 29 Jan 1996 | 5 Jun 1997 | British | 58 years |
| Andrew Edward Charles Scott | Director | 29 Jan 1996 | 5 Jun 1997 | British | 58 years |
| Andrew James Nicholson | Director | 24 Aug 2011 | 31 May 2018 | British | 51 years |
| Anthony Francis Geach | Director | 29 Jan 1996 | 5 Jun 1997 | British | 69 years |
| Antoinette Una Moriarty | Director | 1 Aug 1997 | 20 Apr 2004 | British | 58 years |
| Barbara Charlotte Wallace | Director | 12 Mar 2010 | 24 Aug 2011 | British | 54 years |
| Brian James Willmott | Director | 29 Jan 1996 | 5 Jun 1997 | British | 59 years |
| Brian Robert Martin | Director | 2 Sept 1991 | 13 Jun 2002 | British | 73 years |
| Brian Telfer | Director | 2 Sept 1991 | 28 Nov 1994 | British | 69 years |
| Carol Marie Stewart | Director | 28 Nov 1994 | 9 Nov 1995 | British | 58 years |
| Carolyn Smith | Director | 19 Jan 2000 | 30 Mar 2001 | British | 53 years |
| Charles Robert Austin Middleton | Director | 29 Mar 1989 | 2 Apr 1990 | British | 70 years |
| Christine Anne Russell | Secretary | 24 Aug 2011 | 27 Jul 2012 | - | - |
| Colin Ross Stewart | Director | 2 Sept 1991 | 11 Mar 1994 | British | 68 years |
| David Andrew Anderson | Director | 28 Nov 1994 | 29 Oct 2003 | British | 64 years |
| David Gill | Director | 2 Sept 1991 | 2 Apr 2001 | British | 66 years |
| David James Keay | Director | 28 Nov 1994 | 13 Apr 2000 | British | 67 years |
| Deborah Susan Esslemont | Director | 28 Aug 2007 | 12 Mar 2010 | British | 66 years |
| Deborah Susan Esslemont | Secretary | 24 Nov 2000 | 2 Aug 2006 | British | - |
| Elaine Ward Swanston | Director | 28 Nov 1994 | 13 Apr 2000 | British | 67 years |
| Elizabeth Jayne Marshall | Director | 5 Jun 1997 | 21 Jul 1998 | British | 63 years |
| Elspeth Barbara Ann Miller | Director | 26 Apr 1990 | 2 Jul 2001 | British | 77 years |
| Eric George William Tough | Director | 29 Mar 1989 | 26 Apr 1990 | British | 68 years |
| Eric George William Tough | Director | 24 Nov 2000 | 13 Jun 2002 | British | 68 years |
| Finlay Claude Maceachern | Director | 2 Sept 1991 | 13 Apr 2000 | British | 83 years |
| Gary Moore | Director | 1 Jun 2018 | 26 Jun 2019 | British | 48 years |
| Gary Moore | Director | 30 Aug 2023 | 1 May 2025 | British | 48 years |
| Gary Robert Mcneilly Stewart | Director | 17 Sept 2010 | 11 Dec 2012 | British | 59 years |
| Gillian Cain | Director | 30 Mar 2023 | 12 Nov 2024 | British | 55 years |
| Hew Campbell | Director | 5 Sept 1994 | 1 Aug 2007 | British | 63 years |
| James Anthony Jackson | Director | 17 Sept 2010 | 17 Apr 2012 | British | 58 years |
| James Snodgrass Lindsay | Director | 29 Mar 1989 | 15 Feb 1991 | British | 73 years |
| James Snodgrass Lindsay | Secretary | 29 Mar 1989 | 26 Apr 1990 | British | - |
| Jane Mccabe | Director | 5 Jun 1997 | 8 May 1998 | British | 64 years |
| John Albert Lea | Director | 29 Jan 1996 | 20 Apr 2004 | British | 74 years |
| John Storey | Director | 29 Jan 1996 | 13 Apr 2000 | British | 78 years |
| John Tilsley | Director | 2 Jul 1998 | 13 Apr 2000 | British | 64 years |
| Johnny Stephens | Director | 29 Jan 1996 | 7 Aug 1997 | British | 75 years |
| Kennedy Campbell Foster | Director | 15 Feb 1991 | 5 Sept 1994 | British | 75 years |
| Kevin James Davies | Director | 5 Jun 1997 | 13 Jun 2002 | British | 64 years |
| Kristofer Jon Davies | Director | 26 Jun 2019 | 6 Aug 2021 | British | 44 years |
| Lee Alan Betney | Director | 2 Jul 1998 | 13 Jun 2002 | British | 59 years |
| Lorraine Watson | Director | 11 Mar 1991 | 2 Sept 1991 | British | 66 years |
| Marie Sutherland Allan | Director | 29 Mar 1989 | 2 Sept 1991 | British | 81 years |
| Miller Roy Mclean | Director | 29 Mar 1989 | 26 Apr 1990 | British | 76 years |
| Neil Clark Macarthur | Director | 20 Jun 2008 | 17 Sept 2010 | British | 58 years |
| Pamela Elizabeth Anderson | Director | 29 Mar 1989 | 2 Sept 1991 | British | 77 years |
| Pamela Jane Layzell | Director | 5 Jun 1997 | 28 Jan 1998 | British | 58 years |
| Penelope Ann Strugnell | Director | 29 Jan 1996 | 1 Aug 1997 | British | 60 years |
| Peter Murphy | Director | 29 Mar 1989 | 11 Mar 1991 | British | 71 years |
| Philip Arthur Goulds | Director | 29 Jan 1996 | 5 Jun 1997 | British | 70 years |
| Philip Arthur Goulds | Director | 2 Jul 1998 | 13 Jun 2002 | British | 70 years |
| Rbs Secretarial Services Limited | Corporate Secretary | 27 Jul 2012 | 26 Jun 2019 | United Kingdom | - |
| Robert John Paton | Director | 29 Mar 1989 | 5 Apr 1993 | British | 90 years |
| Sally Jane Sutherland | Director | 17 Apr 2012 | 26 Jun 2019 | British | 58 years |
| Sarah Jane Adams | Director | 2 Jul 1998 | 13 Apr 2000 | British | 60 years |
| Scott Gibson | Director | 26 Jun 2019 | 25 Aug 2023 | British | 45 years |
| Shirley Margaret Macgillivray | Director | 28 Aug 2007 | 30 Jan 2009 | British | 60 years |
| Shirley Margaret Macgillivray | Secretary | 27 Jul 1994 | 24 Nov 2000 | British | - |
| Simon Christopher Dare | Director | 1 Oct 1997 | 19 Jan 2000 | British | 66 years |
| Simon Nicholas Hughes | Director | 29 Jan 1996 | 13 Apr 2000 | British | 59 years |
| Stephen Anthony Lowe | Director | 29 Jan 1996 | 5 Jun 1997 | British | 60 years |
| Victoria Burr | Director | 6 Aug 2021 | 12 Nov 2024 | British | 38 years |
| Yvonne Wood | Secretary | 2 Aug 2006 | 24 Aug 2011 | British | - |