| Andrew John Oakley | Director | 1 Jan 2015 | 10 Jun 2016 | Australian | 63 years |
| Anne Philomena Hyland | Director | 23 Apr 2002 | 1 Jul 2013 | Irish | 65 years |
| Brian John Meakin | Director | 31 Dec 1992 | 4 Aug 1999 | British | 90 years |
| Brian John Meakin | Secretary | 31 Dec 1992 | 4 Aug 1999 | British | - |
| Christopher Marriott | Director | 31 Dec 1992 | 4 Aug 1999 | British | 81 years |
| Christopher Paul Blackwell | Director | 9 Jun 2004 | 1 Jul 2015 | British | 64 years |
| David Anthony Gough | Director | 4 Aug 1999 | 1 Feb 2000 | British | 76 years |
| David Ganderton | Director | 31 Dec 1992 | 9 Jun 2004 | British | 90 years |
| David James Geler Davies | Director | 31 Dec 1992 | 9 Jun 2004 | British | 88 years |
| Elizabeth Teresa Knowles | Director | 31 Mar 2022 | 31 Jul 2023 | British | 41 years |
| James Alexander Ward-lilley | Director | 1 Oct 2015 | 30 Jun 2019 | British | 60 years |
| Jane Elizabeth Whitrow | Secretary | 4 Aug 1999 | 19 Jul 2000 | British | - |
| John Murphy | Secretary | 13 Sept 2016 | 30 Jun 2025 | - | - |
| John Murphy | Director | 31 Jul 2018 | 5 Feb 2020 | British | 72 years |
| John Murphy | Director | 31 Mar 2022 | 30 Jun 2025 | British | 72 years |
| John Nicholas Staniforth | Director | 31 Dec 1992 | 9 Jun 2004 | British | 72 years |
| Malcolm Francis Graham Stevens | Director | 31 Dec 1992 | 4 Aug 1999 | British | 87 years |
| Mehul Andrew Derodra | Director | 10 Jun 2016 | 31 Jul 2018 | British | 59 years |
| Paul Andrew Fry | Director | 30 Jun 2019 | 31 Mar 2022 | British | 59 years |
| Paul Stephen Oliver | Director | 1 Jul 2013 | 1 Jan 2015 | British | 47 years |
| Peter Frederick Burrell | Secretary | 19 Jul 2000 | 1 Jan 2015 | British | - |
| Peter Stephen Keen | Director | 4 Aug 1999 | 23 Apr 2002 | British | 68 years |
| Trevor Michael Phillips | Director | 1 Sept 2012 | 31 May 2017 | British | 64 years |
| William Downie | Director | 5 Feb 2020 | 31 Mar 2022 | British | 58 years |