| Adrian Roy Phillips | Secretary | 29 Aug 1991 | 28 Feb 1994 | British | - |
| Alison Scillitoe White | Secretary | 2 Nov 2009 | 1 Mar 2012 | - | - |
| Andrew James Duxbury | Director | 5 Jan 2016 | 5 Apr 2017 | British | 50 years |
| Andrew James Duxbury | Director | 1 May 2018 | 3 Jan 2020 | British | 50 years |
| Anthony William Rawes Burton | Director | 15 Mar 2001 | 30 Jun 2005 | British | 64 years |
| Brendan Jacob Morrissey | Director | 2 Jan 2000 | 31 May 2007 | British | 68 years |
| Castle Notornis Limited | Corporate Nominee Director | 1 May 1991 | 5 Jul 1991 | United Kingdom | - |
| Christopher John O'sullivan | Director | 30 Sept 2003 | 9 May 2007 | British | 68 years |
| Clive David Bastin | Director | 26 Apr 1995 | 26 May 1999 | British | 88 years |
| Colin Richard Muller | Director | 20 Apr 1994 | 27 Nov 2001 | British | 66 years |
| David Ward Tilman | Director | 8 Jul 2002 | 31 Dec 2009 | British | 72 years |
| David Ward Tilman | Secretary | 27 Jan 2006 | 9 May 2007 | British | - |
| Earl Sibley | Director | 3 Jan 2020 | 31 Dec 2024 | British | 53 years |
| Edward Andrew Perronet Sells | Director | 28 Nov 1991 | 9 May 2007 | British | 77 years |
| Francis Eamon Nelson | Director | 6 Mar 2007 | 30 Sept 2012 | British | 74 years |
| Galliford Try Secretariat Services Limited | Corporate Secretary | 1 Mar 2012 | 3 Jan 2020 | United Kingdom | - |
| Gerard Colquhoun Price | Director | 5 Sept 1997 | 31 Dec 2004 | British | 61 years |
| Greg Paul Fitzgerald | Director | 9 May 2007 | 1 Jan 2016 | British | 61 years |
| James Edward Heath | Director | 16 Feb 1999 | 30 Sept 1999 | British | 64 years |
| Jonathan Kempster | Director | 14 Sept 1999 | 29 Nov 2000 | British | 62 years |
| Keith Bryan Carnegie | Director | 3 Jan 2020 | 31 Dec 2023 | British | 56 years |
| Kevin Allan Corbett | Director | 30 Sept 2012 | 3 Jan 2020 | British | 65 years |
| Lou Jovic | Director | 24 Sept 1991 | 14 Sept 1999 | British | 79 years |
| Lou Jovic | Director | 19 Feb 2001 | 8 Jul 2002 | British | 79 years |
| Lou Jovic | Secretary | 29 Oct 1996 | 8 Jul 2002 | British | - |
| Mark Andrew Pettifor | Director | 9 May 2007 | 15 Feb 2008 | British | 59 years |
| Mark Robert Farnham | Director | 31 May 2016 | 1 May 2018 | British | 60 years |
| Martin Trevor Digby Palmer | Secretary | 3 Jan 2020 | 25 Jun 2021 | - | - |
| Neil John Bucknell | Secretary | 25 Jul 1994 | 2 Sept 1996 | British | - |
| Neil John Bucknell | Secretary | 23 Aug 1993 | 30 Aug 1993 | British | - |
| Nicholas James Irens | Director | 30 Sept 1999 | 1 Nov 2000 | British | 79 years |
| Paul David Money | Secretary | 9 May 2007 | 30 Oct 2009 | British | - |
| Philip James Davies | Director | 29 Apr 1991 | 6 Mar 2007 | British | 75 years |
| Pitsec Limited | Corporate Nominee Director | 1 May 1991 | 5 Jan 1991 | United Kingdom | - |
| Pitsec Limited | Corporate Nominee Secretary | 1 May 1991 | 29 Aug 1991 | United Kingdom | - |
| Robert Service Aird | Secretary | 28 Feb 1994 | 29 Oct 1996 | British | - |
| Sheila Ann Davies | Director | 5 Jul 1991 | 19 Nov 1991 | British | 70 years |
| Trevor Michael Birchmore | Director | 30 Sept 1999 | 1 Nov 2000 | British | 79 years |
| Zillah Wendy Stone | Secretary | 6 Sept 2002 | 27 Jan 2006 | British | - |
