| Alan Christopher Burton | Director | 15 Oct 1999 | 15 Nov 2003 | British | 83 years |
| Alan Stephen Acheson | Director | 13 Jul 2016 | 9 Dec 2019 | British | 66 years |
| Alexander Maxwell Crombie | Director | 15 Oct 1999 | 28 Jan 2004 | British | 77 years |
| Alexander Peter Watt | Director | 15 Oct 1999 | 15 Nov 2010 | British | 74 years |
| Alexander Scott Bell | Director | 11 Apr 1989 | 15 Oct 1999 | British | 85 years |
| Allison Donaldson | Director | 17 Dec 2019 | 31 May 2021 | British | 56 years |
| Archibald James Angus Macuish Gray | Secretary | 11 Apr 1989 | 14 Nov 1993 | British | - |
| Aron William Mitchell | Director | 15 May 2020 | 8 Sept 2021 | British | 54 years |
| Barry Colin Fricke | Director | 2 Mar 2021 | 31 Dec 2021 | British | 44 years |
| Colin Richard Walklin | Director | 15 Nov 2010 | 28 Oct 2016 | British | 72 years |
| David Drysdale Fotheringham | Secretary | 15 Nov 1993 | 1 Mar 1996 | British | - |
| David John Burns | Secretary | 1 Aug 2010 | 13 May 2016 | - | - |
| David Thorburn Cumming | Director | 24 Jan 2005 | 28 Oct 2016 | British | 65 years |
| Denise Elisabeth Thomas | Director | 11 Jul 2016 | 9 Dec 2019 | British | 55 years |
| Eric Paul Rose | Director | 15 Nov 2016 | 12 Mar 2019 | American | 59 years |
| Gary Robert Marshall | Director | 6 Jan 2020 | 31 May 2021 | British | 65 years |
| Holly Sylvia Kidd | Secretary | 13 May 2016 | 2 Mar 2021 | - | - |
| Iain Cobden Lumsden | Director | 26 May 1998 | 15 Oct 1999 | British | 80 years |
| James Steven Watson | Director | 28 Oct 2016 | 26 Apr 2019 | British | 48 years |
| James Stretton | Director | 11 Apr 1989 | 15 Oct 1999 | British | 83 years |
| John Francis Henry Trott | Director | 22 Mar 1994 | 28 Apr 1998 | British | 88 years |
| Lawrence Airey | Director | 11 Apr 1989 | 22 Mar 1994 | British | 100 years |
| Mark Connolly | Director | 21 Oct 2005 | 15 Mar 2009 | British | 67 years |
| Martin Alan Kwiatkowski | Director | 9 Nov 2016 | 7 Apr 2025 | British | 49 years |
| Nathan Richard Parnaby | Director | 15 Oct 1999 | 31 Oct 2003 | British | 68 years |
| Neil Lindsay Nicholson Machray | Director | 21 Sept 2021 | 30 Sept 2023 | British | 57 years |
| Norman Keith Skeoch | Director | 15 Oct 1999 | 6 Jan 2016 | British | 70 years |
| Norman Lessels | Director | 11 Apr 1989 | 28 Apr 1998 | British | 88 years |
| Paolo Alonzi | Director | 2 Mar 2021 | 9 Jan 2022 | Italian | 54 years |
| Peter Anthony Stubbs | Secretary | 15 Oct 1999 | 15 Oct 2003 | British | - |
| Peter Walter Somerville | Secretary | 1 Mar 1996 | 15 Oct 1999 | British | - |
| Robert John Mckillop | Director | 31 May 2021 | 5 Nov 2021 | British | 59 years |
| Simon Lawrence Andrew Mcintyre | Director | 28 Oct 2016 | 9 Dec 2019 | British | 54 years |
| Stephen Campbell | Director | 28 Oct 2016 | 20 Jun 2019 | British | 56 years |
| Vincent Joseph O'brien | Secretary | 16 Oct 2003 | 1 Aug 2010 | British | - |
| William Regnar Littleboy | Director | 24 Jun 2002 | 28 Oct 2016 | British | 65 years |