| Adrian Charles Harold Williams | Secretary | 8 Dec 2006 | 1 Jun 2009 | British | - |
| Blair Milton Nicholls | Director | 11 Nov 2004 | 22 Nov 2006 | Australian | 59 years |
| Brian Raymond Cotterill | Director | 10 Mar 1998 | 16 Nov 1999 | Australian | 85 years |
| Brian Walter Pomeroy | Director | 18 Sept 2013 | 30 Sept 2014 | British | 82 years |
| Christopher Thomas Killourhy | Director | 2 Dec 2020 | 7 Sept 2022 | British | 49 years |
| Christopher William Duffy | Nominee Director | 29 Aug 1971 | 5 Dec 1991 | British | 69 years |
| Clyde Secretaries Limited | Corporate Secretary | 29 Aug 1971 | 5 Dec 1991 | United Kingdom | - |
| David James Winkett | Director | 17 Sept 2004 | 4 Feb 2021 | British | 57 years |
| David Mark Lang | Director | 11 Nov 2004 | 30 Sept 2007 | British | 60 years |
| Desmond Fogarty | Director | 5 Oct 1999 | 30 Jun 2001 | Irish | 65 years |
| Douglas James Snoxhill | Director | 5 Dec 1991 | 1 May 1993 | British | 103 years |
| Edna Gayle Tollifson | Director | 30 Jun 2001 | 30 Apr 2004 | Australian | 72 years |
| Esther Felton Smith | Secretary | 29 Jun 2015 | 26 Jun 2017 | - | - |
| Francis Michael O'halloran | Director | 5 Dec 1991 | 17 Aug 2012 | Australian | 80 years |
| Gordon Leslie Brown | Director | 5 Dec 1991 | 30 Jun 1999 | British | 93 years |
| Hugh Glen Pallot | Secretary | 24 Jul 1998 | 8 Dec 2006 | British | - |
| John David Neal | Director | 11 Nov 2004 | 31 Dec 2017 | British | 62 years |
| Kathryn Mary Lisson | Director | 19 Jun 2009 | 15 Feb 2011 | Canadian | 74 years |
| Martin Andrew Bower | Director | 13 Jan 1993 | 28 Feb 2001 | British | 80 years |
| Martin Andrew Bower | Secretary | 5 Dec 1991 | 16 Feb 1995 | British | - |
| Mary Denise Greenhalgh | Secretary | 16 Feb 1995 | 6 Jan 1997 | British | - |
| Michael Ferghal O'regan | Director | 5 Oct 1999 | 22 Oct 2004 | Irish | 64 years |
| Mohinder Singh Kang | Director | 11 Nov 2004 | 30 Jun 2012 | British | 64 years |
| Paul Edward Glen | Director | 7 Dec 2000 | 18 Oct 2004 | British | 66 years |
| Paul John Hosking | Director | 31 Oct 2001 | 31 Oct 2002 | British | 59 years |
| Peter Ernest Grove | Director | 11 Nov 2004 | 31 Dec 2009 | British | 77 years |
| Philip Andrew Dodridge | Director | 9 Mar 2007 | 19 Dec 2016 | British | 58 years |
| Richard James Macgregor | Director | 5 Oct 1999 | 30 Jun 2001 | British | 68 years |
| Richard James Macgregor | Secretary | 6 Jan 1997 | 24 Jul 1998 | British | - |
| Richard Vaughan Pryce | Director | 3 Sept 2012 | 14 Dec 2020 | British | 67 years |
| Robert Michael Grant | Director | 1 Sept 1994 | 17 Oct 2000 | British | 73 years |
| Sharon Maria Boland | Secretary | 15 Jun 2007 | 29 Jun 2015 | British | - |
| Steven Michael Price | Director | 11 Nov 2004 | 9 Aug 2005 | British | 67 years |
| Steven Paul Burns | Director | 17 Sept 2004 | 18 Nov 2013 | British | 68 years |
| Timothy Charles William Ingram | Director | 1 Oct 2014 | 31 Mar 2023 | British | 79 years |
| Vincent Mclenaghan | Director | 22 Nov 2006 | 2 Sept 2010 | Australian | 67 years |
| Wayne Lewis | Director | 31 Oct 2001 | 28 Sept 2004 | British | 68 years |