| Adrian Charles Morris | Director | 19 Jan 2005 | 26 Jul 2005 | British | 59 years |
| Andrew Leslie Patching | Director | 1 Dec 1998 | 2 Jan 2008 | British | 72 years |
| Anne Elizabeth Minto | Director | 1 Nov 2002 | 30 Sept 2010 | British | 73 years |
| Brian Peter Murphy | Director | 17 Dec 1997 | 2 Apr 2003 | British | 76 years |
| Capital Cranfield Pension Trustees Limited | Corporate Director | 11 Jul 2006 | 11 Jun 2007 | United Kingdom | - |
| Carol Elizabeth Frost | Director | 1 Feb 2012 | 31 Dec 2014 | British | 55 years |
| Catherine Jane Aldwinckle | Director | 28 Sept 2007 | 10 Jan 2008 | British | 60 years |
| Christopher Bennett | Director | 17 Aug 2011 | 16 Mar 2017 | British | 66 years |
| Christopher Bennett | Director | 31 Dec 2001 | 1 Jul 2008 | British | 66 years |
| Christopher Howard Morrison | Director | 1 Aug 2017 | 11 Mar 2018 | British | 54 years |
| Christopher John Stern | Director | 1 Sept 2007 | 31 May 2024 | English | 69 years |
| Daniel Nanson | Director | 1 Oct 2010 | 15 Jul 2013 | British/canadian | 53 years |
| David John Byrne | Secretary | 26 Jul 2005 | 1 Apr 2019 | British | - |
| David Philip Kendle | Director | 15 May 2003 | 28 Sept 2007 | British | 70 years |
| Deryk Irving King | Director | 1 Jan 2010 | 31 Mar 2019 | British,canadian | 79 years |
| Eldon Frank Pethybridge | Director | 26 Jul 2005 | 28 Feb 2007 | British | 76 years |
| Fernando Alberto Arias | Director | 1 Sept 2013 | 12 May 2017 | Argentine | 53 years |
| Gerald Richard Golding | Director | 17 Dec 1997 | 9 Nov 2000 | British | 82 years |
| Grahame Kenneth George Selby | Director | 17 Dec 1997 | 1 Dec 1998 | British | 73 years |
| Gurmukh Singh Hayre | Director | 1 Apr 2019 | 1 Apr 2019 | British | 64 years |
| Helen Louise Espley | Director | 10 Sept 2021 | 24 Jun 2025 | British | 50 years |
| James Lowrie | Director | 17 Dec 1997 | 9 Nov 2000 | British | 69 years |
| Janette Susan Bell | Director | 1 Sept 2007 | 30 Sept 2009 | British | 62 years |
| Jill Belinda Shedden | Director | 1 Jun 2010 | 1 Feb 2012 | British | 61 years |
| John Charles King | Director | 1 Dec 1998 | 31 Dec 2017 | British | 69 years |
| John Nicholas Shears | Director | 1 Dec 1998 | 11 Mar 2010 | British | 68 years |
| Lee Harrison | Director | 21 Mar 2018 | 18 Jan 2021 | Welsh | 47 years |
| Matthew Longstreth Thompson | Director | 20 Mar 2003 | 13 Sept 2005 | British | 62 years |
| Mawlaw Corporate Services Limited | Corporate Director | 8 Dec 1997 | 8 Dec 1997 | United Kingdom | - |
| Mawlaw Secretaries Limited | Corporate Secretary | 8 Dec 1997 | 8 Dec 1997 | United Kingdom | - |
| Maxine Louise Harrison | Director | 1 Jul 2002 | 31 Dec 2004 | British | 66 years |
| Michael William New | Director | 1 Jul 2002 | 1 Nov 2002 | British | 78 years |
| Peter James Barton | Director | 17 Dec 1997 | 30 Jun 2002 | British | 68 years |
| Peter O'donovan | Director | 1 Jan 2014 | 9 Mar 2023 | British | 63 years |
| Philip Bernard Revill | Director | 29 Jan 2001 | 31 Mar 2006 | British | 71 years |
| Raymond Lee Tillbrook | Director | 30 Aug 2002 | 23 Feb 2006 | British | 73 years |
| Richard Matthew Mccord | Director | 1 Jul 2017 | 1 Feb 2020 | British | 53 years |
| Richard William Bide | Director | 8 Dec 1997 | 30 Jun 2002 | British | 70 years |
| Rita Powell | Secretary | 8 Dec 1997 | 29 Jul 1999 | British | - |
| Robert Anthony Wilson | Director | 8 Dec 1997 | 14 Jun 2002 | British | 73 years |
| Robert Charles Meacham | Director | 17 Dec 1997 | 1 Dec 1998 | British | 68 years |
| Robert Christopher Milburn | Director | 1 Dec 1998 | 31 Dec 2002 | British | 79 years |
| Ross Russell Limited | Corporate Director | 1 Jan 2008 | 21 Sept 2020 | United Kingdom | - |
| Scott Thomson | Director | 1 Dec 1998 | 31 Dec 2001 | British | 54 years |
| Stefka Georgieva Gerova | Director | 1 May 2018 | 10 Sept 2021 | Bulgarian | 47 years |
| Stella Bridget Chaplin | Secretary | 1 Oct 2004 | 26 Jul 2005 | British | - |
| Stephen Mark Field | Secretary | 29 Jul 1999 | 1 Oct 2004 | British | - |
| Stuart Craig Dee | Director | 1 Feb 2015 | 31 Jan 2017 | British | 54 years |
| Teresa Jane Furmston | Secretary | 8 Dec 1997 | 22 Feb 1999 | British | - |
| Terrence Fisher | Director | 9 Nov 2000 | 23 Sept 2013 | British | 74 years |
| William Ewing | Director | 1 Jul 2008 | 17 Aug 2011 | British | 76 years |