| Andrew Charles Allen | Secretary | 25 Mar 2014 | 16 Sept 2019 | - | - |
| Andrew Charles Allen | Director | 21 May 2018 | 6 Jan 2025 | British | 45 years |
| Andrew Charles Allen | Secretary | 30 Sept 2022 | 24 Nov 2022 | - | - |
| Barry Stuart Cunliffe | Secretary | 4 Feb 2010 | 16 Jan 2014 | British | - |
| Brian Jackson | Secretary | 16 Jan 2014 | 25 Mar 2014 | - | - |
| Charles Gervas Adrian Steele | Director | 14 Apr 2004 | 25 Aug 2005 | British | 83 years |
| Denise Patricia Cockrem | Director | 25 Jul 2022 | 8 Oct 2025 | British | 64 years |
| Donald James Highgate | Director | 14 Apr 2004 | 23 Nov 2009 | British | 86 years |
| Francis James Heathcote | Director | 14 Apr 2004 | 20 Feb 2009 | British | 69 years |
| Graham Edward Cooley | Director | 29 Jun 2009 | 1 Dec 2022 | British | 62 years |
| Helen Alice Baker | Secretary | 25 Oct 2021 | 30 Sept 2022 | - | - |
| John Alan David Wreford | Director | 1 Mar 2004 | 31 Jan 2006 | British | 85 years |
| John Alan David Wreford | Secretary | 14 Apr 2004 | 16 Dec 2005 | British | - |
| Jonathan Anthony Lloyd | Director | 1 Mar 2004 | 24 Apr 2008 | British | 79 years |
| Juergen Nowicki | Director | 1 Nov 2019 | 15 Jan 2025 | German | 62 years |
| Katherine Louise Margiad Roe | Director | 6 May 2020 | 29 Sept 2023 | British | 48 years |
| Marcus John Scott | Secretary | 16 Dec 2005 | 24 Sept 2009 | British | - |
| Nicola Ham Edmonds | Secretary | 16 Sept 2019 | 25 Oct 2021 | - | - |
| Nqh (co Sec) Limited | Corporate Secretary | 1 Mar 2004 | 14 Apr 2004 | - | - |
| Peter Edward Walker | Director | 25 Jun 2004 | 23 Jun 2010 | British | 94 years |
| Peter Hargreaves | Secretary | 24 Sept 2009 | 4 Feb 2010 | British | - |
| Peter Kendal Hargreaves | Director | 14 Apr 2004 | 31 Oct 2017 | British | 80 years |
| Rachel Louise Smith | Director | 16 Sept 2015 | 30 Jan 2023 | British | 52 years |
| Rachel Smith | Director | 10 Sept 2015 | 16 Sept 2015 | British | 52 years |
| Robert Michael Pendlebury | Director | 4 Jun 2015 | 31 Jul 2020 | British | 85 years |
| Roger George Putnam | Director | 15 May 2006 | 31 Oct 2019 | British | 81 years |
| Roger Norman Freeman | Director | 1 Oct 2010 | 3 Oct 2019 | British | 84 years |
| Stephen Leigh Massey | Director | 14 Apr 2004 | 1 Jan 2008 | British | 69 years |
| Tom Reid Rae | Director | 3 Dec 2020 | 16 Nov 2021 | British | 65 years |
| Victoria Elizabeth Williams | Secretary | 24 Nov 2022 | 19 Feb 2024 | - | - |
