| Alan George Semple | Director | 1 Oct 2001 | 30 Apr 2015 | British | 67 years |
| Allister Gordon Langlands | Director | 2 Apr 1999 | 28 Nov 2003 | British | 68 years |
| Andrew Charles Webster | Director | 30 Apr 2024 | 23 Apr 2025 | British | 45 years |
| Andrew Stuart Mclean | Director | 10 Dec 2019 | 31 Aug 2024 | British | 56 years |
| Carl Anthony Chatfield | Director | 18 Dec 2015 | 10 Dec 2019 | British | 62 years |
| Charles Nicholas Brown | Nominee Secretary | 3 Sept 1997 | 23 Mar 1998 | British | - |
| Christopher Edward Milne Watson | Director | 1 Oct 1999 | 21 Mar 2005 | British | 59 years |
| Christopher Edward Milne Watson | Secretary | 1 Oct 1999 | 24 Nov 2003 | British | - |
| David Miller Kemp | Director | 30 Apr 2015 | 30 Apr 2024 | British | 56 years |
| George Graeme Park | Director | 21 Mar 2005 | 22 Nov 2006 | British | 57 years |
| Graham Good | Director | 2 Apr 1999 | 1 Oct 1999 | British | 77 years |
| Graham Good | Secretary | 23 Mar 1998 | 1 Oct 1999 | British | - |
| Hugh Fraser | Nominee Director | 3 Sept 1997 | 2 Apr 1999 | British | 63 years |
| Iain Angus Jones | Secretary | 18 Dec 2015 | 12 Jun 2024 | - | - |
| Iain William Torrens | Director | 8 May 2025 | 7 Aug 2025 | British | 58 years |
| Ian Johnson | Director | 28 Nov 2003 | 1 Sept 2010 | British | 75 years |
| Ian Johnson | Secretary | 24 Nov 2003 | 1 Sept 2010 | British | - |
| Michael Dear | Director | 22 Nov 2006 | 16 Nov 2009 | British | 55 years |
| Robert Muirhead Birnie Brown | Director | 1 Sept 2010 | 18 Dec 2015 | British | 56 years |
| Robert Muirhead Birnie Brown | Secretary | 1 Sept 2010 | 18 Dec 2015 | - | - |
| William George Setter | Director | 16 Nov 2009 | 21 Mar 2025 | British | 51 years |
