| Alan Logan Turnbull | Director | 13 Apr 2018 | 31 Dec 2024 | British | 64 years |
| Alan Quinn | Director | 24 Jul 2002 | 31 Mar 2012 | British | 60 years |
| Andrew Muir Munro | Director | 6 Oct 1990 | 13 Apr 2018 | British | 75 years |
| David Mark Chazan | Director | 13 Apr 2018 | 30 Sept 2024 | British | 67 years |
| Douglas William Griffin | Director | 5 Jan 1992 | 31 Dec 1996 | British | 84 years |
| Douglas William Griffin | Secretary | 26 Feb 1993 | 12 Mar 1993 | British | - |
| Eamonn Doyle | Director | 5 Jan 1992 | 19 Jul 2002 | British | 65 years |
| George Alexander Strathie | Director | 5 Jan 1992 | 13 Apr 2018 | British | 61 years |
| Gordon Mackenzie Thomson | Director | 1 Jan 2004 | 27 Aug 2013 | British | 79 years |
| Gordon Mackenzie Thomson | Secretary | 8 Sept 1999 | 1 Jan 2004 | British | - |
| Patrick Joseph Mctaggart | Director | 1 Sept 2006 | 13 Apr 2018 | British | 64 years |
| Penelope Ann Munro | Secretary | 1 Jan 2004 | 13 Apr 2018 | British | - |
| William Alexander Finlayson | Secretary | 6 Oct 1990 | 26 Feb 1993 | British | - |
| William Alexander Finlayson | Secretary | 12 Mar 1993 | 8 Sept 1999 | British | - |