| Andrew Cooke | Director | 6 Nov 2006 | 10 Oct 2008 | British | 52 years |
| Andrew Steven Dack | Director | 2 Nov 2009 | 2 Aug 2011 | British | 64 years |
| Bryan James Ian Lawrie | Director | 21 Nov 2014 | 16 Nov 2016 | British | 53 years |
| Charles Eugene Shackleton Strickland | Secretary | 23 Sept 2015 | 30 Jun 2020 | - | - |
| David Evison | Director | 21 Nov 2014 | 30 Nov 2022 | British | 62 years |
| Gideon Benjamin Adam Haughton | Director | 1 Nov 2005 | 31 Mar 2024 | British | 62 years |
| Graham Burnett | Director | 31 Aug 1992 | 21 Nov 2014 | British | 68 years |
| Graham Burnett | Secretary | 7 May 1992 | 21 Nov 2014 | British | - |
| Helen Jane Wright | Director | 28 May 2019 | 18 Apr 2023 | British | 50 years |
| Jacqueline Scott | Nominee Director | 7 May 1992 | 7 May 1992 | British | 75 years |
| Jonathan Paul Barrett | Secretary | 21 Nov 2014 | 23 Sept 2015 | - | - |
| Michael James Smith | Director | 7 May 1992 | 21 Nov 2014 | Gbr | 68 years |
| Michael John Erland Allen | Director | 16 Nov 2016 | 31 May 2019 | British | 67 years |
| Neil Joseph Dodds | Secretary | 30 Jun 2020 | 31 Aug 2024 | - | - |
| Neil Jowsey | Director | 21 Nov 2014 | 9 Apr 2018 | British | 62 years |
| Paul John Spencer | Director | 3 Oct 2000 | 29 Jun 2001 | British | 69 years |
| Richard Mark Hinckley | Director | 1 Nov 2005 | 27 May 2010 | British | 58 years |
| Stephen Bryson | Director | 3 Oct 2000 | 4 Jul 2008 | British | 71 years |
| Stephen John Scott | Nominee Secretary | 7 May 1992 | 7 May 1992 | British | - |
