| Adam John Parker | Director | 14 Jul 2008 | 26 Sept 2014 | British | 52 years |
| Alexander Ritchie Mcnaught Fryer | Director | 6 Jan 1992 | 3 Mar 2003 | British | 80 years |
| Alistair James Wivell | Director | 21 Jun 1989 | 2 Sept 2002 | British | 81 years |
| Armar William Johnston | Director | 28 Oct 2005 | 7 Jul 2008 | British | 74 years |
| Beverley Edward John Dew | Director | 6 Jun 2014 | 5 Dec 2014 | British | 55 years |
| Charles Nicholas Pollard | Director | 22 Oct 2014 | 1 Jul 2015 | British | 68 years |
| Christopher John Shankland | Director | 1 Oct 2012 | 6 Jun 2014 | British | 55 years |
| David Brian Stockham | Director | 28 Jun 2011 | 24 Oct 2014 | British | 61 years |
| David Gordon Smith | Director | 25 Jan 2019 | 31 Dec 2019 | British | 66 years |
| David John Harris | Director | 22 Feb 2011 | 20 Aug 2013 | British | 65 years |
| David Samuel Kennedy | Director | 24 Mar 2016 | 31 Jan 2017 | British | 68 years |
| Dean John Banks | Director | 8 Jun 2015 | 10 Feb 2021 | British | 55 years |
| Derek Knox | Director | 28 Oct 2005 | 31 Dec 2018 | British | 68 years |
| Gerald Pape | Director | 28 Oct 2005 | 18 Feb 2013 | British | 72 years |
| Graeme Taylor | Director | 21 Dec 1998 | 28 Sept 2012 | British | 74 years |
| Graeme Taylor | Secretary | 21 Dec 1998 | 28 Sept 2012 | British | - |
| Graham Ronald Hill | Director | 14 Jun 2017 | 17 Feb 2021 | British | 64 years |
| Gregory William Mutch | Secretary | 28 Sept 2012 | 30 Sept 2015 | - | - |
| Harry Worthington Townley | Director | 1 Jan 2009 | 30 Jun 2016 | British | 78 years |
| James Baxter Gibson | Director | 21 Jun 1989 | 1 Jul 2002 | British | 84 years |
| James Joseph Duffy | Director | 14 Jun 2017 | 17 Mar 2021 | British | 60 years |
| James Kenneth Tait | Director | 21 Jun 1989 | 21 Dec 1998 | British | 85 years |
| James Kenneth Tait | Secretary | 21 Jun 1989 | 21 Dec 1998 | British | - |
| James Lindsay Nicolson | Director | 3 Mar 2003 | 31 Jul 2007 | British | 80 years |
| James Tolputt | Director | 18 Aug 2010 | 23 Aug 2013 | British | 65 years |
| John Murray Macdonald | Director | 21 Jun 1989 | 6 Sept 1991 | British | 92 years |
| Ken Bruce | Director | 1 May 2008 | 1 Nov 2008 | British | 76 years |
| Kenneth James Winter | Director | 2 Sept 2002 | 1 Jan 2006 | British | 81 years |
| Mark William Bullock | Director | 10 Feb 2021 | 31 Dec 2023 | British | 63 years |
| Murray John Easton | Director | 5 Nov 2014 | 16 Oct 2015 | British | 71 years |
| Neil Anthony Sherreard | Director | 22 Feb 2011 | 1 Jul 2011 | English | 62 years |
| Paul Francis Gandy | Director | 5 Nov 2014 | 24 Mar 2016 | British | 66 years |
| Peter Charles Clist | Director | 28 Oct 2005 | 18 Aug 2010 | British | 71 years |
| Robert Clark | Director | 28 Oct 2005 | 29 Aug 2014 | British | 69 years |
| Robert William Anderson | Director | 28 Oct 2005 | 30 Apr 2008 | British | 79 years |
| Simon Charles Kirkpatrick | Director | 14 Jun 2017 | 14 Jun 2019 | British | 48 years |
| Stuart Edward Curl | Director | 5 Dec 2014 | 31 May 2016 | British | 65 years |
| Timothy John Clarke | Director | 1 Mar 2008 | 18 Feb 2013 | British | 70 years |