| Alison Ann Hargreaves | Secretary | 18 Jan 1995 | 13 Aug 1999 | British | - |
| Andrew Nicholas Drake | Director | 16 Jan 1995 | 18 Jan 1995 | British | 75 years |
| Andrew Nicholas Drake | Secretary | 16 Jan 1995 | 18 Jan 1995 | British | - |
| Anthony William Searson James | Director | 31 Dec 2012 | 12 Sept 2013 | British | 58 years |
| Caroline Mary Tolhurst | Secretary | 13 Aug 1999 | 1 Jul 2008 | British | - |
| Christopher James Jukes | Director | 1 Apr 2014 | 26 Jul 2016 | British | 48 years |
| Christopher James Taite | Director | 31 Dec 2012 | 26 Jul 2016 | British | 55 years |
| Combined Nominees Limited | Corporate Nominee Director | 11 Jan 1995 | 16 Jan 1995 | United Kingdom | - |
| Combined Secretarial Services Limited | Corporate Nominee Director | 11 Jan 1995 | 16 Jan 1995 | United Kingdom | - |
| Combined Secretarial Services Limited | Corporate Nominee Secretary | 11 Jan 1995 | 16 Jan 1995 | United Kingdom | - |
| Danielle Mary Nicholls | Director | 31 Jan 2017 | 31 Dec 2020 | British | 41 years |
| Darren James Patrick Rawcliffe | Director | 1 Feb 2006 | 31 Dec 2008 | British | 58 years |
| Douglas Robert Jan De Broekert | Director | 18 Jan 1995 | 31 Dec 1998 | British | 87 years |
| Gary James Powell | Director | 2 Mar 2009 | 3 Dec 2012 | British | 52 years |
| Geoffrey Hammond | Director | 18 Jan 1995 | 31 Dec 1999 | British | 87 years |
| George Ian Macloy Cockburn | Director | 1 Feb 1995 | 31 Dec 1997 | British | 81 years |
| Giles Andrew Clarke | Director | 1 Oct 2007 | 31 Dec 2012 | British | 59 years |
| Giles Henry Wintle | Director | 26 Jul 2016 | 31 Jan 2017 | British | 53 years |
| Ian Douglas Mair | Director | 3 Dec 2012 | 31 Dec 2012 | British | 53 years |
| James Gilles Raynor | Director | 26 Jul 2016 | 18 Sept 2019 | British | 53 years |
| Jane Caroline Goode | Director | 18 Jul 2017 | 18 Jul 2023 | British | 50 years |
| Jeremy David Tredennick Titchen | Director | 15 Dec 1999 | 10 Jun 2005 | British | 63 years |
| Judith Patricia Ball | Secretary | 31 Dec 2012 | 26 Jul 2016 | - | - |
| Julian Richard Milne | Director | 28 Apr 2004 | 26 May 2006 | British | 70 years |
| Katharine Emma Robinson | Secretary | 1 Jul 2008 | 31 Dec 2012 | British | - |
| Lauren Ruth Buck | Director | 25 Jul 2006 | 15 Nov 2010 | British | 55 years |
| Mark Robin Preston | Director | 30 Jun 2006 | 30 Jun 2008 | British | 58 years |
| Mark Robin Preston | Director | 31 Dec 2012 | 26 Jul 2016 | British | 58 years |
| Martin Aldred | Director | 18 Jan 1995 | 31 Mar 2000 | British | 81 years |
| Martin Aldred | Secretary | 18 Jan 1995 | 18 Jan 1995 | British | - |
| Nicholas Richard Scarles | Director | 31 Dec 2012 | 26 Jul 2016 | British, | 64 years |
| Peter Sean Vernon | Director | 7 Apr 2005 | 31 Dec 2012 | British | 67 years |
| Raymond Charles Williams | Director | 15 Dec 1999 | 1 Feb 2006 | British | 73 years |
| Richard Allan Jeffrey Marshall | Director | 12 Jun 2015 | 26 Jul 2016 | British | 62 years |
| Richard Brian Mallett | Director | 26 Jul 2016 | 31 Jan 2017 | British | 59 years |
| Richard Simon Handley | Director | 15 Dec 1999 | 28 Apr 2004 | British | 72 years |
| Richard Simon Handley | Director | 23 Feb 2005 | 3 Apr 2008 | British | 72 years |
| Robert Richard Davis | Director | 26 Jul 2016 | 31 Jan 2017 | British | 59 years |
| Roger Frederick Crawford Blundell | Director | 3 Apr 2008 | 31 Dec 2012 | British | 64 years |
| Stephen Howard Rhodes Musgrave | Director | 27 Feb 1996 | 28 Apr 2004 | British | 73 years |
| Stephen Howard Rhodes Musgrave | Director | 23 Feb 2005 | 30 Jun 2006 | British | 73 years |
| Stephen Jeremy Moore | Director | 31 Dec 2012 | 26 Jul 2016 | British | 66 years |
| Stephen Jeremy Moore | Director | 18 Sept 2019 | 30 Jun 2023 | British | 66 years |
| Timothy John Carrington Manning | Director | 16 Jan 1995 | 18 Jan 1995 | British | 78 years |
| Timothy Leslie Budden | Director | 31 Dec 2012 | 26 Jul 2016 | British | 60 years |
| Ulrike Schwarz-runer | Director | 1 Feb 2011 | 31 Dec 2012 | Austrian | 55 years |