| Andrew Mark Naylor Wainwright | Director | 3 Mar 1997 | 4 Aug 1998 | British | 68 years |
| Andrew Paul Fleet | Director | 2 Nov 1998 | 7 Dec 2001 | British | 68 years |
| Barry Minton | Director | 2 Apr 1993 | 1 Oct 1993 | British | 81 years |
| Barry Royston Clapham | Director | 15 Feb 1993 | 30 Jun 1997 | British | 80 years |
| Barry Royston Clapham | Secretary | 15 Feb 1993 | 2 Apr 1993 | British | - |
| Christine Mary Harris | Director | 23 Sept 2002 | 28 Oct 2002 | British | 70 years |
| Clive William Price Mckenzie | Secretary | 2 Apr 1993 | 31 Jan 1996 | British | - |
| Colin James Cole | Director | 17 Jun 2002 | 17 Jan 2006 | British | 67 years |
| Colin Neil Chandler | Secretary | 30 Sept 2002 | 17 Feb 2006 | British | - |
| David Alan Mills | Director | 20 Sept 2002 | 28 Oct 2002 | British | 77 years |
| David Christopher Cummings | Director | 16 Mar 1998 | 15 Dec 2000 | British | 71 years |
| David Edward Brill | Director | 15 Feb 1993 | 31 May 1996 | British | 89 years |
| David Jenkinson | Director | 1 May 2016 | 20 Sept 2020 | British | 58 years |
| Derek James Ridley | Director | 3 Jun 1996 | 30 Jan 1997 | British | 77 years |
| Gary Chippendale | Secretary | 20 Oct 1997 | 4 Aug 1998 | British | - |
| Gerald Neil Francis | Director | 17 Jan 2006 | 29 Dec 2006 | British | 69 years |
| Gerald Neil Francis | Director | 1 Jan 2010 | 30 Sept 2016 | British | 69 years |
| Ingleby Holdings Limited | Corporate Nominee Director | 4 Jan 1993 | 15 Feb 1993 | United Kingdom | - |
| Ingleby Nominees Limited | Corporate Nominee Secretary | 4 Jan 1993 | 15 Feb 1993 | United Kingdom | - |
| Jeffrey Fairburn | Director | 1 Jan 2010 | 31 Dec 2018 | British | 59 years |
| John Henry Bennett | Director | 17 Jun 2002 | 31 Mar 2006 | British | 78 years |
| John White | Director | 17 Jan 2006 | 31 Dec 2009 | British | 74 years |
| Keith Robert Wray | Director | 15 Feb 1993 | 15 Oct 1997 | British | 77 years |
| Martin Charles Donohue | Director | 17 Jun 2002 | 1 Nov 2005 | Irish | 80 years |
| Michael Hugh Killoran | Director | 17 Jan 2006 | 14 Jan 2022 | British | 64 years |
| Michael Peter Farley | Director | 17 Jan 2006 | 18 Apr 2013 | British | 72 years |
| Nigel Mark Styles | Director | 1 Dec 1997 | 1 Dec 1998 | British | 62 years |
| Nigel Peter Greenaway | Director | 18 Apr 2013 | 30 Apr 2016 | British | 65 years |
| Nigel Terry Fee | Director | 17 Jun 2002 | 24 Jan 2006 | British | 74 years |
| Paul Thomson Smith | Director | 28 May 2002 | 10 Sept 2002 | British | 68 years |
| Peter Anthony Carpinelli | Director | 22 Feb 1999 | 9 Nov 2000 | British | 60 years |
| Philip Nickson | Director | 2 Nov 1998 | 18 Sept 2002 | British | 68 years |
| Raymond Stuart Joughin | Director | 15 Feb 1993 | 28 Feb 1998 | British | 88 years |
| Richard Paul Stenhouse | Director | 30 Sept 2016 | 30 Sept 2021 | British | 54 years |
| Robert Templeman | Director | 1 Oct 1993 | 30 Jan 2002 | British | 77 years |
| Simon David Mantell | Secretary | 31 Jan 1996 | 30 Sept 2002 | British | - |
| Stephen James Rosier | Director | 1 Jun 1996 | 30 Jan 2002 | British | 70 years |
| Stuart Rowlands | Director | 4 Jan 1999 | 2 May 2002 | British | 63 years |