| Andrew Dickinson | Secretary | 12 Oct 2007 | 13 Jul 2010 | British | - |
| Andrew John Oakley | Director | 1 Jan 2015 | 10 Jun 2016 | Australian | 63 years |
| Anne Philomena Hyland | Director | 11 Nov 2010 | 1 Jul 2013 | Irish | 65 years |
| Christopher Paul Blackwell | Director | 11 Nov 2010 | 1 Jul 2015 | British | 64 years |
| Colin Clive Dalton | Director | 14 Aug 2006 | 5 Jul 2011 | British | 75 years |
| David Smith | Secretary | 31 Jan 1994 | 9 May 2005 | British | - |
| Donald Selwyn Davies | Director | 13 Mar 1990 | 12 May 2005 | British | 85 years |
| Elizabeth Teresa Knowles | Director | 31 Mar 2022 | 31 Jul 2023 | British | 41 years |
| Geoffrey Peter Fothergill | Director | 10 Sept 1999 | 8 Apr 2005 | British | 80 years |
| James Alexander Ward-lilley | Director | 31 May 2017 | 30 Jun 2019 | British | 60 years |
| 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 |
| Kevin Ronald Leech | Director | 13 Mar 1990 | 10 Oct 2002 | British | 82 years |
| Kieran Pius Murphy | Director | 30 Aug 2005 | 17 Jan 2007 | Irish | 62 years |
| Lee Fraser Coleman | Secretary | 17 Jan 2007 | 12 Oct 2007 | British | - |
| Mark Glyn Hardy | Secretary | 30 Jul 1990 | 31 Jan 1994 | British | - |
| Mark Jeremy Sanders | Director | 1 Nov 2002 | 30 Aug 2005 | British | 68 years |
| Mark Parry-billings | Director | 1 Nov 2002 | 31 Dec 2004 | British | 61 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 Jonathan Ballington | Director | 8 Mar 1999 | 13 Sept 2006 | British | 71 years |
| Paul Stephen Oliver | Director | 1 Jul 2013 | 1 Jan 2015 | British | 47 years |
| Peter Frederick Burrell | Secretary | 13 Jul 2010 | 31 Dec 2014 | British | - |
| Peter John Shennan | Director | 23 Jul 1999 | 17 Jan 2007 | British | 75 years |
| Peter John Shennan | Secretary | 9 May 2005 | 17 Jan 2007 | British | - |
| Robert Nichol Boyes | Director | 25 Oct 1985 | 12 May 2005 | Canadian | 84 years |
| Stuart William Sim | Director | 13 Mar 1990 | 3 Feb 2005 | British | 74 years |
| Stuart William Sim | Secretary | 13 Mar 1990 | 30 Jul 1990 | British | - |
| Terence Stanley Chadwick | Director | 14 Aug 2006 | 17 Jan 2007 | British | 75 years |
| Trevor Michael Phillips | Director | 1 Jul 2015 | 31 May 2017 | British | 64 years |
| William Downie | Director | 5 Feb 2020 | 31 Mar 2022 | British | 58 years |