| Alan Robert Robertson | Director | 7 Oct 2002 | 14 May 2005 | British | 64 years |
| Allan Bowie | Director | 8 May 2007 | 22 Feb 2008 | British | 62 years |
| Andrew Mitchell Pearson | Director | 12 Oct 2007 | 12 Jun 2009 | British | 61 years |
| Anthony John Smith | Director | 31 Jan 1996 | 27 Mar 2004 | British | 79 years |
| Craig John Anderson | Secretary | 21 Feb 2005 | 7 May 2010 | British | - |
| David James Jackson | Director | 7 Oct 2002 | 16 Jun 2004 | British | 79 years |
| David John Watson | Director | 14 Feb 1996 | 31 Jul 1997 | British | 72 years |
| David John Watson | Secretary | 14 Feb 1996 | 19 Jun 1996 | British | - |
| Franco Martinelli | Director | 11 May 2005 | 12 Oct 2017 | British | 66 years |
| Gillian Elizabeth Hastings | Director | 21 Feb 2005 | 14 Dec 2006 | British | 62 years |
| Jim Scott Cornell | Director | 31 Jan 1996 | 14 Feb 1996 | British | 87 years |
| John Alexander Cowie | Director | 14 Feb 1996 | 4 Jun 2004 | British | 67 years |
| John Peter O`kane | Director | 7 Oct 2002 | 31 Jul 2004 | Irish | 68 years |
| John Wallace Howie | Director | 15 Jun 2009 | 29 Nov 2010 | British | 59 years |
| Nicholas James William Borrett | Secretary | 27 Jul 2012 | 25 Feb 2013 | - | - |
| Peter Graham Hewett | Director | 8 Feb 1996 | 14 Feb 1996 | British | 78 years |
| Peter Graham Hewett | Secretary | 31 Jan 1996 | 14 Feb 1996 | British | - |
| Peter Lloyd Rogers | Director | 16 Jun 2004 | 31 Aug 2016 | British | 79 years |
| Peter Ramsay | Director | 14 Feb 1996 | 7 Oct 2002 | British | 62 years |
| Pieter Esbach | Director | 27 Jul 2015 | 15 May 2019 | British | 64 years |
| Primrose Jean Davidson Stark | Director | 14 Feb 1996 | 4 Jun 2004 | British | 66 years |
| Robert Frank Whiley | Director | 29 Nov 2010 | 27 Jul 2015 | British | 71 years |
| Roger Charles Mills | Director | 22 Sept 1997 | 21 Feb 2005 | British | 76 years |
| Sally Fiona Brooks | Director | 1 Aug 2018 | 13 Dec 2019 | British | 60 years |
| Stanley Alan Royall Billiald | Secretary | 15 Feb 2005 | 1 Jul 2009 | Other | - |
| Susan Margaret Mcmillan | Secretary | 19 Jun 1996 | 21 Feb 2005 | British | - |
| Valerie Francine Anne Teller | Secretary | 1 Jul 2009 | 27 Jul 2012 | British | - |
| William Robert Scott | Director | 14 Feb 1996 | 7 Oct 2002 | British | 74 years |
| William Tame | Director | 16 Jun 2004 | 17 Dec 2014 | British | 72 years |