| Alexander Mark Hedderwick | Director | 7 Nov 1988 | 29 Sept 1992 | British | 77 years |
| Alexander Stewart Dudgeon | Director | 28 Sept 1992 | 25 Jan 1994 | British | 68 years |
| Christopher James Walters | Director | 7 Jun 2010 | 9 Sept 2011 | British | 71 years |
| Claire Middleton | Director | 5 Sept 2022 | 13 Jun 2024 | British | 40 years |
| David Anthony Garland | Director | 7 Jun 2010 | 9 Sept 2011 | British | 69 years |
| David Robert Thorpe | Director | 7 Jun 2010 | 24 Jul 2013 | British | 69 years |
| Donald Graham | Director | 29 Sept 1992 | 27 Jan 2014 | British | 69 years |
| Douglas Nicol Heron | Director | 27 Jan 2014 | 16 Jan 2015 | British | 47 years |
| Edmund Ridout Harvey-jamieson | Director | 16 Jan 2015 | 28 Feb 2022 | British | 50 years |
| Graeme Thomas Hartop | Secretary | 29 Jan 1992 | 8 Nov 1994 | British | - |
| Ian Martin Dalziel | Director | 7 Nov 1988 | 30 Jun 1992 | British | 78 years |
| James Tait Laurenson | Director | 7 Nov 1988 | 6 Sept 1993 | British | 84 years |
| Jeremy Malbon Lowry | Director | 2 Sept 1991 | 30 Sept 1993 | British | 68 years |
| Jeremy Malbon Lowry | Secretary | 7 Nov 1988 | 29 Jan 1992 | British | - |
| Jeremy Paul Norfolk | Director | 7 Nov 1988 | 12 Mar 1991 | British | 77 years |
| Mark Andrew Daryl House | Director | 8 Sept 2011 | 11 Jul 2013 | British | 54 years |
| Morven Gow | Secretary | 14 Jun 2016 | 6 Apr 2017 | - | - |
| Raymond Marvin Entwistle | Director | 29 Sept 1992 | 31 Dec 2004 | British | 81 years |
| Richard Edwards Donaldson | Director | 29 Jan 1992 | 8 Jun 2010 | British | 79 years |
| Richard Steven Barr | Director | 13 Jun 2024 | 31 Oct 2025 | British | 40 years |
| Robert Dennis Ray | Director | 8 Sept 2011 | 5 Sept 2022 | British | 64 years |
| Ross Douglas Mcdonald | Secretary | 3 Dec 2002 | 8 Jun 2010 | British | - |
| Sally Anne Doyle | Secretary | 7 Jun 2010 | 14 Jun 2016 | - | - |
| Scott Edward Massie | Secretary | 8 Nov 1994 | 16 Jan 1995 | British | - |
| William John Stanworth | Director | 3 Dec 2002 | 8 Jun 2010 | British | 65 years |
| William John Stanworth | Secretary | 16 Jan 1995 | 3 Dec 2002 | British | - |
