| Alexander Maxwell Crombie | Director | 3 Mar 2003 | 1 Dec 2005 | British | 77 years |
| Alexander Scott Bell | Director | 11 Apr 1989 | 15 Mar 2002 | British | 85 years |
| Andrew Moss | Director | 1 May 2022 | 1 Oct 2022 | British | 62 years |
| Archibald James Angus Macuish Gray | Secretary | 11 Apr 1989 | 14 Nov 1993 | British | - |
| Arlene Cairns | Director | 1 Apr 2024 | 1 Feb 2025 | British | 48 years |
| Barry O'dwyer | Director | 1 Jun 2006 | 3 Aug 2007 | Irish | 55 years |
| Brid Mary Meaney | Director | 30 Apr 2021 | 1 Feb 2025 | Irish | 52 years |
| Ciaran Francis Mcguigan | Director | 31 Aug 2018 | 1 Feb 2021 | Irish | 49 years |
| David Cameron Bentley | Director | 16 Mar 2002 | 1 Dec 2005 | Uk | 72 years |
| David Drysdale Fotheringham | Secretary | 15 Nov 1993 | 1 Mar 1996 | British | - |
| Evelyn Brigid Bourke | Director | 7 Aug 2006 | 7 Nov 2008 | Irish | 61 years |
| Frances Margaret Horsburgh | Secretary | 23 Apr 2015 | 31 Aug 2018 | - | - |
| Gillian Mcgovern | Secretary | 1 May 2007 | 23 Apr 2015 | British | - |
| Iain Cobden Lumsden | Director | 26 May 1998 | 3 Mar 2003 | British | 80 years |
| James Masson Black | Director | 7 Nov 2008 | 31 Dec 2010 | British | 62 years |
| James Stretton | Director | 11 Apr 1989 | 15 Dec 2001 | British | 83 years |
| John Easton Gill | Director | 1 Dec 2005 | 29 Sept 2017 | British | 62 years |
| John Francis Henry Trott | Director | 22 Mar 1994 | 28 Apr 1998 | British | 88 years |
| John Francis Hylands | Director | 16 Dec 2001 | 1 Dec 2005 | British | 75 years |
| John Robert Lister | Director | 1 Nov 2021 | 1 Feb 2025 | British | 68 years |
| Lawrence Airey | Director | 11 Apr 1989 | 22 Mar 1994 | British | 100 years |
| Mark Alexander Hesketh | Director | 18 Apr 2011 | 31 May 2017 | British | 65 years |
| Michael Norris Urmston | Director | 10 Dec 2018 | 31 Oct 2021 | British | 77 years |
| Nathan Richard Parnaby | Director | 1 Dec 2005 | 5 Sept 2007 | British | 68 years |
| Norman Lessels | Director | 11 Apr 1989 | 28 Apr 1998 | British | 88 years |
| Paul Stephen Matthews | Director | 13 Jul 2009 | 1 Mar 2017 | British | 66 years |
| Peter Kamalakant Joshi | Director | 29 Feb 2008 | 31 Oct 2008 | British | 61 years |
| Peter Kane Mayes | Director | 1 Oct 2022 | 31 Mar 2024 | British | 55 years |
| Peter Walter Somerville | Secretary | 1 Mar 1996 | 1 May 2007 | British | - |
| Samuel John Lever | Director | 1 Feb 2021 | 20 Mar 2024 | British | 48 years |
| Shaun Edward Doherty | Director | 1 Dec 2005 | 7 Aug 2006 | British | 68 years |
| Simon David George Douglas | Director | 1 Dec 2005 | 27 Apr 2006 | British | 61 years |
| Stephen Keith Percival | Director | 31 May 2017 | 30 Apr 2021 | British | 51 years |
| Steven Grant Murray | Director | 29 Sept 2017 | 31 Aug 2018 | British | 48 years |
| Trevor John Matthews | Director | 1 Dec 2005 | 29 Jan 2008 | Australian | 74 years |
