| Alison Ann Hargreaves | Secretary | 2 Dec 1993 | 2 Dec 1993 | British | - |
| Alison Ann Hargreaves | Secretary | 24 Nov 1994 | 13 Aug 1999 | British | - |
| Andrew Ellis Baum | Director | 1 Jul 2000 | 5 Jul 2007 | British | 73 years |
| Caroline Mary Tolhurst | Secretary | 13 Aug 1999 | 1 Jul 2008 | British | - |
| Combined Nominees Limited | Corporate Nominee Director | 24 Nov 1993 | 2 Dec 1993 | United Kingdom | - |
| Combined Secretarial Services Limited | Corporate Nominee Director | 24 Nov 1993 | 24 Nov 1994 | United Kingdom | - |
| Combined Secretarial Services Limited | Corporate Nominee Secretary | 24 Nov 1993 | 2 Dec 1993 | United Kingdom | - |
| Craig David Mcwilliam | Director | 1 Jul 2010 | 1 May 2014 | British | 54 years |
| Craig David Mcwilliam | Director | 1 May 2014 | 10 Jan 2020 | British | 54 years |
| Derek John Lewis | Secretary | 7 Jun 2018 | 31 Mar 2022 | - | - |
| George Ian Macloy Cockburn | Director | 2 Dec 1993 | 31 Dec 1997 | British | 81 years |
| Giles Andrew Clarke | Director | 1 Jul 2008 | 7 Nov 2013 | British | 59 years |
| Graham Fenwick Pimlott | Director | 1 Jan 2009 | 3 Dec 2019 | British | 77 years |
| Heather Victoria Rabbatts | Director | 5 Nov 2009 | 2 May 2019 | United Kingdom | 71 years |
| Jeremy David Tredennick Titchen | Director | 1 Jan 2003 | 7 Apr 2005 | British | 63 years |
| Jeremy Henry Moore Newsum | Director | 2 Dec 1993 | 30 Jun 2008 | British | 71 years |
| John Edward Irvine | Director | 7 Jul 2005 | 31 Mar 2010 | British | 70 years |
| Jonathan Osborne Hagger | Director | 28 May 1998 | 31 May 2006 | British | 77 years |
| Jorge Emanuel Mendonca | Director | 7 Jun 2018 | 30 Jun 2020 | British | 63 years |
| Katharine Emma Robinson | Director | 1 Jul 2008 | 1 Jul 2008 | British | 62 years |
| Katharine Emma Robinson | Secretary | 1 Jul 2008 | 29 Jun 2018 | British | - |
| Mark Robin Preston | Director | 30 Jun 2006 | 31 Dec 2016 | British | 58 years |
| Melanie Gee | Director | 29 Jun 2021 | 31 Dec 2024 | British | 65 years |
| Mervyn Howard | Director | 1 Jan 2003 | 1 Jan 2006 | British | 67 years |
| Nicholas Richard Scarles | Director | 1 Jun 2006 | 31 May 2019 | British, | 64 years |
| Peter Sean Vernon | Director | 7 Apr 2005 | 1 Sept 2021 | British | 67 years |
| Richard Ian Powell | Director | 1 May 2014 | 28 Apr 2016 | British | 58 years |
| Richard John Clare | Director | 1 Mar 2001 | 1 Jan 2009 | British | 73 years |
| Richard Michael Gradon | Director | 1 Nov 2007 | 31 Oct 2015 | British | 67 years |
| Richard Simon Handley | Director | 8 Mar 2000 | 3 Apr 2008 | British | 72 years |
| Roderick David Kent | Director | 8 Mar 2000 | 4 Jun 2009 | British | 79 years |
| Roger Frederick Crawford Blundell | Director | 3 Apr 2008 | 31 Dec 2022 | British | 64 years |
| Simon Geoffrey Harding-roots | Director | 7 May 2015 | 30 Jun 2020 | British | 58 years |
| Stephen Augustus Lovegrove | Director | 4 Feb 2016 | 3 Jul 2024 | British | 60 years |
| Stephen Howard Rhodes Musgrave | Director | 10 Jun 1999 | 30 Jun 2006 | British | 73 years |
| Ulrike Schwarz-runer | Director | 5 Jan 2011 | 28 Apr 2016 | Austrian | 55 years |
| William Robert Bax | Director | 1 Jan 2017 | 1 Jun 2018 | British | 48 years |