| Alastair Jonathan Taylor Peet | Director | 20 Jul 2001 | 18 Feb 2002 | British | 51 years |
| Alastair Jonathan Taylor Peet | Secretary | 20 Jul 2001 | 18 Feb 2002 | British | - |
| David Jenkinson | Director | 1 May 2016 | 20 Sept 2020 | British | 58 years |
| Fraser David Eric Thomson | Director | 18 Feb 2002 | 13 Dec 2005 | British | 63 years |
| Fraser David Eric Thomson | Secretary | 18 Feb 2002 | 13 Dec 2005 | British | - |
| Gerald Neil Francis | Director | 13 Dec 2005 | 30 Sept 2016 | British | 69 years |
| Jacqueline Fisher | Nominee Director | 20 Jul 2001 | 18 Feb 2002 | British | 73 years |
| Jeffrey Fairburn | Director | 1 Jan 2010 | 31 Dec 2018 | British | 59 years |
| John Purdie | Director | 18 Feb 2002 | 13 Dec 2005 | British | 74 years |
| John White | Director | 13 Dec 2005 | 31 Dec 2009 | British | 74 years |
| Michael Hugh Killoran | Director | 13 Dec 2005 | 14 Jan 2022 | British | 64 years |
| Michael Peter Farley | Director | 1 Jan 2010 | 18 Apr 2013 | British | 72 years |
| Nigel Derek Curry | Director | 18 Feb 2002 | 13 Dec 2005 | British | 71 years |
| Nigel Peter Greenaway | Director | 18 Apr 2013 | 30 Apr 2016 | British | 65 years |
| Richard Paul Stenhouse | Director | 30 Sept 2016 | 30 Sept 2021 | British | 54 years |