| Adam Charles Wearing | Secretary | 31 Dec 2003 | 21 Mar 2005 | British | - |
| Alfred Barrington Meeks | Director | 31 Jan 2013 | 11 Jun 2022 | British | 71 years |
| Andrew Mark Beswick | Director | 9 Aug 2011 | 24 May 2018 | British | 56 years |
| Andrew Paul Glennon | Director | 29 Oct 2002 | 21 Jul 2005 | British | 63 years |
| Barry Charles Kayes | Director | 28 Apr 2000 | 31 Aug 2006 | British | 83 years |
| Caroline Anne Dibbs | Director | 25 Jun 2018 | 7 Jul 2021 | British | 56 years |
| Caroline Jane Bradley | Director | 28 Jan 2013 | 31 Aug 2020 | British | 62 years |
| David John Tiller | Director | 30 Jan 2020 | 11 Dec 2020 | British | 59 years |
| Donald James Wild | Director | 5 Aug 2010 | 20 Jul 2017 | British | 68 years |
| Duncan George Jarrett | Director | 28 Feb 2014 | 27 May 2016 | British | 60 years |
| Gemma Eileen Harle | Director | 8 Dec 2015 | 16 Oct 2017 | British | 61 years |
| Geoffrey Stephen Clarkson | Director | 3 Nov 2000 | 9 May 2013 | British | 76 years |
| Geoffrey Stephen Clarkson | Secretary | 21 Mar 2005 | 30 Apr 2013 | British | - |
| Gillian Mary Davidson | Director | 30 Apr 2013 | 13 Dec 2016 | British | 60 years |
| Gillian Mary Davidson | Secretary | 30 Apr 2013 | 4 Dec 2013 | - | - |
| Graeham Stuart Sampson | Director | 5 Apr 2011 | 24 Sept 2012 | British | 50 years |
| Helen Muriel Ball | Director | 8 Dec 2015 | 24 Apr 2024 | British | 62 years |
| Iain Stewart Black | Director | 5 Aug 2010 | 18 Oct 2011 | British | 66 years |
| Jason Tunbridge | Director | 28 Nov 2017 | 22 Mar 2018 | British | 56 years |
| Jim Ewing | Director | 20 Dec 2017 | 24 Nov 2022 | British | 55 years |
| Judith Margaret Ann Worthy | Director | 3 Aug 2023 | 4 Dec 2024 | British | 60 years |
| Julie Darlington | Director | 25 Oct 2020 | 30 Sept 2022 | British | 56 years |
| Keely Jill Craig | Director | 29 Aug 2017 | 30 Jul 2021 | British | 51 years |
| Keith Arthur Carby | Director | 6 Apr 2005 | 25 Jul 2007 | British | 79 years |
| Malcolm Macdonald Reid | Director | 24 Nov 2022 | 27 Jun 2024 | British | 50 years |
| Mark William Scanlon | Director | 15 Apr 2019 | 10 May 2023 | Irish | 57 years |
| Martin James Greenwood | Director | 1 Aug 2000 | 15 Apr 2019 | British | 71 years |
| Martin Keith Tyler | Director | 6 Sept 2022 | 5 May 2023 | British | 48 years |
| Matthew Pheasey | Director | 2 Aug 2016 | 16 Nov 2016 | British | 55 years |
| Michael John Chadwick | Director | 6 Jul 2010 | 5 Oct 2010 | British | 72 years |
| Michael John O'brien | Director | 18 Apr 2012 | 22 Jun 2017 | British | 62 years |
| Mike Hogg | Director | 25 Oct 2021 | 9 Jan 2024 | British | 46 years |
| Nathan Victor Moss | Director | 5 Oct 2010 | 20 Sept 2011 | British | 70 years |
| Neil Andrew Preston | Director | 28 Apr 2000 | 15 Oct 2003 | British | 67 years |
| Neil Andrew Preston | Secretary | 28 Apr 2000 | 31 Dec 2003 | British | - |
| Nicholas Edward Kelly | Director | 1 Dec 2002 | 18 Aug 2003 | British | 55 years |
| Peter William Lane | Director | 24 Jun 2002 | 11 Dec 2010 | British | 57 years |
| Pinsent Masons Director Limited | Corporate Director | 19 Jan 2000 | 4 Feb 2000 | United Kingdom | - |
| Pinsent Masons Secretarial Limited | Corporate Secretary | 19 Jan 2000 | 20 Apr 2000 | United Kingdom | - |
| Richard James Fletcher | Secretary | 4 Dec 2013 | 19 Apr 2023 | - | - |
| Robert Thomas Waller | Director | 28 Sept 2012 | 11 Feb 2013 | British | 60 years |
| Robin Duncan Smith | Director | 20 Sept 2011 | 26 Jun 2015 | British | 62 years |
| Robin Granville Hodgson | Director | 5 Sept 2007 | 18 Apr 2012 | British | 83 years |
| Ross Campbell Allan | Director | 19 May 2021 | 3 May 2022 | British | 51 years |
| Rupert Hugo Wynne Robson | Director | 8 Nov 2006 | 5 Oct 2010 | British | 64 years |
| Sarah Elizabeth Pullan | Director | 29 Apr 2000 | 21 Oct 2002 | British | 66 years |
| Sharon Kay Bryant | Director | 28 Apr 2000 | 18 Aug 2003 | British | 67 years |
| Simon Andrew Badley | Director | 6 Jul 2010 | 9 Aug 2011 | British | 58 years |
| Simon Harold Hudson | Director | 4 Feb 2000 | 12 Aug 2011 | British | 72 years |
| Stephen Jones | Director | 28 Apr 2000 | 21 Sept 2003 | British | 67 years |
| Stephen Vickers | Director | 24 Apr 2024 | 9 Dec 2024 | British | 58 years |
| Steve Murray | Director | 24 Jan 2019 | 19 Nov 2020 | English | 47 years |
| Susan Jeannine Martin | Director | 28 Apr 2000 | 12 Aug 2002 | British | 75 years |