| Alan Begley | Director | 22 May 2017 | 14 Feb 2018 | British | 60 years |
| Alan Edward Philpot | Director | 14 Feb 2014 | 4 Mar 2015 | British | 54 years |
| Andrew Frederick West | Director | 6 Jun 2005 | 30 Mar 2012 | British | 61 years |
| Barcosec Limited | Corporate Director | 22 Jul 1998 | 6 Jun 2005 | United Kingdom | - |
| Barometers Limited | Corporate Director | 22 Jul 1998 | 6 Jun 2005 | United Kingdom | - |
| Barry Weal | Director | 31 Aug 1994 | 22 Jul 1998 | British | 73 years |
| Brian Williams | Director | 14 Feb 2014 | 15 Jan 2025 | British | 52 years |
| Bruce Johnathan Perry | Director | 14 Feb 2014 | 31 Aug 2018 | British | 51 years |
| Charles Frederick Shoolbred | Secretary | 17 Aug 1992 | 22 Jul 1998 | British | - |
| Charles Paul Rowan | Director | 23 Aug 1996 | 22 Jul 1998 | British | 64 years |
| Christopher Leslie Richard Boobyer | Director | 31 Aug 1992 | 22 Jul 1998 | British | 71 years |
| David James Ellis | Director | 17 Aug 1992 | 31 Aug 1994 | British | 66 years |
| David Mark Berry | Director | 22 May 2009 | 22 Apr 2013 | British | 61 years |
| Duncan John Rowberry | Director | 23 Aug 1996 | 22 Jul 1998 | British | 66 years |
| Elizabeth Anne Konvalinka | Director | 6 Jun 2005 | 8 Sept 2006 | American | 62 years |
| Frank Avis Silcock | Director | 17 Aug 1992 | 31 Jul 1993 | British | 91 years |
| Fraser Mackenzie | Director | 6 Jun 2005 | 22 Apr 2013 | British | 61 years |
| Gordon Paterson Macintosh | Director | 31 Dec 1994 | 22 Jul 1998 | British | 80 years |
| James Richard Burrows | Director | 22 May 2009 | 22 Apr 2016 | British | 49 years |
| John Dalrymple Callender | Director | 31 Aug 1992 | 22 Jul 1998 | British | 75 years |
| John George Belam | Director | 6 Jun 2005 | 1 Dec 2011 | British | 69 years |
| John Martin Weaving | Director | 1 Aug 1993 | 31 Mar 1996 | British | 66 years |
| Judith Margaret Currie | Director | 23 Apr 2018 | 4 Oct 2021 | British | 54 years |
| Paul John Burleton | Director | 14 Feb 2014 | 12 Jun 2015 | British | 55 years |
| Paul Kivlehan | Director | 11 May 2016 | 16 Aug 2017 | Irish | 48 years |
| Sarah Box | Director | 31 Mar 1996 | 22 Jul 1998 | British | 70 years |
| Sharon Elizabeth Hunt | Director | 29 Aug 2018 | 18 Jul 2019 | British | 55 years |
| Stanley William Buckley | Director | 17 Aug 1992 | 31 Aug 1992 | British | 85 years |
| Stuart Leslie Orr | Director | 14 Feb 2014 | 1 Sept 2022 | New Zealander | 60 years |
| Thomas Martin Clark | Director | 17 Aug 1992 | 31 Dec 1994 | British | 86 years |
| Valentino Wotton | Director | 16 Jun 2015 | 28 Apr 2017 | British | 48 years |
| Yin Hai Anita Leung | Director | 22 May 2009 | 31 Mar 2011 | British | 55 years |