| Andrew Monaghan | Director | 1 Mar 2010 | 20 Jan 2011 | British | 55 years |
| Andrew Peter Sleigh | Director | 13 Mar 2014 | 27 May 2015 | British | 62 years |
| Anoop Kang | Director | 7 Jan 2016 | 21 Dec 2016 | British | 52 years |
| Bethan Anne Elizabeth Melges | Director | 16 Jul 2015 | 9 Sept 2019 | British | 51 years |
| Bethan Melges | Secretary | 16 Jul 2015 | 9 Sept 2019 | - | - |
| Brian Wood | Director | 24 Feb 2004 | 20 Jan 2011 | British | 67 years |
| Charles Alexander Duguid | Director | 1 May 1989 | 24 Feb 2004 | British | 102 years |
| Claudio Veritiero | Director | 8 Jul 2013 | 17 Feb 2014 | British | 53 years |
| Clp Secretaries Limited | Corporate Secretary | 7 Nov 2006 | 20 Jan 2011 | - | - |
| David Gordon Morrison | Director | 24 Feb 2004 | 20 Feb 2011 | British | 63 years |
| David Wilson Dale | Director | 1 Jan 2006 | 10 Aug 2010 | British | 60 years |
| Deborah Pamela Hamilton | Secretary | 8 Jul 2013 | 22 Sept 2014 | - | - |
| Donald William Macdiarmid | Director | 6 Sept 2012 | 8 Jul 2013 | British | 65 years |
| Ian Duguid | Director | 1 May 1989 | 20 Sept 1994 | British | 75 years |
| James Anderson Clark | Director | 22 Sept 2005 | 10 Aug 2010 | British | 72 years |
| Jonathan David Wilkinson | Director | 8 Jul 2013 | 16 Oct 2015 | British | 58 years |
| Keith Stewart Johnson | Director | 21 Jan 2008 | 10 Aug 2010 | British | 74 years |
| Mark Anthony Bradshaw | Director | 22 Apr 2020 | 28 Jan 2021 | British | 56 years |
| Mark Antony Hazlewood | Director | 13 Mar 2012 | 8 Jul 2013 | British | 60 years |
| Matthew Armitage | Director | 27 May 2015 | 16 Jul 2015 | British | 54 years |
| Matthew Armitage | Secretary | 22 Dec 2014 | 16 Jul 2015 | - | - |
| Matthew Stevens | Director | 20 Jan 2011 | 13 Mar 2012 | British | 57 years |
| Michael Ramsey | Director | 1 Mar 2010 | 20 Jan 2011 | British | 53 years |
| Neil John Chidgey | Director | 8 Jul 2013 | 4 Mar 2014 | British | 64 years |
| Nicholas Broom | Director | 1 Feb 2008 | 31 Dec 2008 | British | 69 years |
| Peter Carolan | Director | 1 Mar 2010 | 20 Jan 2011 | British | 62 years |
| Peter John White | Director | 19 Feb 2021 | 31 Mar 2022 | British | 62 years |
| Philip Higgins | Director | 9 Sept 2019 | 24 Sept 2021 | British | 57 years |
| Philip Higgins | Secretary | 9 Sept 2019 | 24 Sept 2021 | - | - |
| Philip Windover Fellowes-prynne | Director | 20 Jan 2011 | 6 Sept 2012 | British | 64 years |
| Robert Ellis Duguid | Director | 1 May 1989 | 20 Jan 2011 | British | 71 years |
| Scott Ian Inglis | Director | 1 Mar 2010 | 20 Jan 2011 | British | 54 years |
| Simon David Martle | Director | 26 Oct 2018 | 31 Oct 2019 | British | 56 years |
| Simon Howell | Secretary | 20 Jan 2011 | 8 Jul 2013 | British | - |
| Stewart & Watson | Corporate Secretary | 1 May 1989 | 7 Nov 2006 | - | - |
| Thomas Lee Foreman | Director | 21 Dec 2016 | 26 Oct 2018 | British | 50 years |