| Adam David Christopher Westley | Director | 20 Sept 2018 | 2 Sept 2019 | British | 57 years |
| Alan Morrison Jones | Director | 28 Apr 2005 | 27 Aug 2009 | British | 82 years |
| Alan William Mcculloch | Director | 2 Sept 2019 | 30 Jul 2021 | British | 60 years |
| Andrew Charles Phillip Carr-locke | Director | 3 Mar 2008 | 27 Aug 2009 | British | 73 years |
| Andrew William Hodges | Director | 30 Jun 2016 | 12 Jul 2018 | British | 59 years |
| Brian Hobden | Secretary | 25 Mar 2002 | 15 Nov 2006 | British | - |
| Bruce Alan Ian Dingwall | Director | 18 Apr 1997 | 9 Sept 2004 | British | 67 years |
| Christopher Terence Bird | Director | 23 Nov 2011 | 16 Apr 2012 | British | 66 years |
| Craig Mccallum | Director | 23 Nov 2011 | 16 Apr 2012 | British | 58 years |
| David Andrew Isenegger | Director | 9 Jan 2012 | 21 Oct 2013 | British,canadian,swiss | 62 years |
| David John Morrison | Director | 29 Oct 1999 | 25 Apr 2006 | British | 67 years |
| David Martin Allan | Director | 21 Oct 1996 | 1 Nov 1996 | British | 80 years |
| David Ross Wilson | Director | 23 Nov 2011 | 16 Apr 2012 | British | 65 years |
| Graeme David Sword | Director | 24 Oct 2007 | 30 Mar 2009 | British | 58 years |
| Gregory Craig Mckenna | Director | 23 Nov 2011 | 16 Apr 2012 | British | 60 years |
| Iain Douglas Bartholomew | Director | 23 Nov 2011 | 21 Oct 2013 | British | 68 years |
| Ian Grant Dawson | Director | 27 Aug 2009 | 11 Nov 2011 | British | 67 years |
| James Michael Dickinson | Director | 30 Jul 2021 | 2 Oct 2023 | British | 46 years |
| John Charles Morgan | Director | 7 Sept 1998 | 27 Aug 2009 | British | 81 years |
| John David Neely | Director | 18 Apr 1997 | 21 Dec 1999 | British | 83 years |
| Jonathan David Murphy | Director | 16 Aug 1999 | 14 May 2009 | British | 70 years |
| Jonathan Farber | Director | 29 Oct 1999 | 6 Jul 2004 | American | 58 years |
| Jonathan Leslie Roger | Director | 14 May 2009 | 20 May 2013 | British | 57 years |
| Justine Michelle Campbell | Director | 12 Jul 2018 | 20 Sept 2018 | British | 56 years |
| Laurence William Kinch | Director | 1 Nov 1996 | 27 Aug 2009 | British | 73 years |
| Marie-louise Clayton | Director | 14 Feb 2005 | 6 Dec 2007 | British | 66 years |
| Mark Patrick Nicholls | Director | 15 Jan 2004 | 27 Aug 2009 | British | 77 years |
| Michael John Fleming | Director | 18 Apr 1997 | 21 Dec 1999 | British,irish | 68 years |
| Michael John Wagstaff | Director | 16 Aug 1999 | 2 Oct 2009 | British | 65 years |
| Nicholas Lawrence Luff | Director | 27 Aug 2009 | 23 Nov 2011 | British | 59 years |
| Nicola Carroll | Director | 21 Oct 2013 | 30 Jun 2016 | British | 67 years |
| Pamela Mary Coles | Secretary | 2 Oct 2009 | 23 Nov 2011 | British | - |
| Paul De Leeuw | Director | 23 Nov 2011 | 16 Aug 2013 | British | 62 years |
| Paul Ian Hedley | Director | 23 Nov 2011 | 21 Oct 2013 | British | 57 years |
| Peter Andrew Turner | Director | 6 Dec 2007 | 2 Oct 2009 | British | 56 years |
| Robb Eric Turner | Director | 12 Sept 2007 | 27 Aug 2009 | American | 64 years |
| Roderick Mcintosh Begbie | Director | 19 Jun 2007 | 2 Oct 2009 | British | 60 years |
| Sarah Elizabeth Carter | Director | 2 Oct 2023 | 14 Jun 2024 | British | 46 years |
| Sarwjit Sambhi | Director | 20 May 2013 | 21 Oct 2013 | British | 57 years |
| Simon Nicholas Waite | Secretary | 15 Nov 2006 | 2 Oct 2009 | British | - |
| Stephen John Kemp | Director | 23 Nov 2011 | 16 Apr 2012 | British | 60 years |
| Stronachs | Corporate Nominee Secretary | 21 Oct 1996 | 25 Mar 2002 | - | - |
| Thomas Blades | Director | 16 Mar 2006 | 27 Aug 2009 | British | 70 years |
| Thomas Michael Ernest Ehret | Director | 16 Mar 2006 | 27 Aug 2009 | French | 74 years |
| Vincent Mark Hanafin | Director | 27 Aug 2009 | 23 Nov 2011 | British | 67 years |