| Alan Herbert Cherry | Director | 1 Mar 2006 | 23 Jan 2010 | British | 93 years |
| Alasdair David Evans | Director | 21 May 2008 | 20 Sept 2010 | British | 65 years |
| Antony David Longstaff | Director | 2 Oct 2006 | 14 Jun 2007 | British | 67 years |
| Ben John Tolhurst | Director | 22 Feb 2022 | 31 Oct 2024 | British | 60 years |
| Christine Milne | Director | 16 Feb 2015 | 23 Oct 2015 | British | 54 years |
| Christopher Raymond Andrew Darroch | Director | 18 Apr 2011 | 5 May 2023 | British | 60 years |
| David John Price | Director | 18 Sept 2018 | 11 May 2023 | British | 66 years |
| David Leonard Grose | Director | 23 Oct 2015 | 31 Jan 2018 | British | 50 years |
| Emily Ann Mousley | Director | 29 Sept 2010 | 23 Jun 2016 | British | 58 years |
| Gavin Andrew Lewis | Director | 20 Jul 2005 | 8 Feb 2006 | British | 52 years |
| James Anthony Dipple | Director | 1 Apr 2008 | 31 Mar 2022 | British | 70 years |
| James Michael Brady | Director | 20 Jul 2005 | 8 Feb 2006 | British | 73 years |
| John Anthony Bateman | Director | 1 Aug 2005 | 17 Feb 2006 | British | 68 years |
| Jonathan Henry Cheshire Walsh | Director | 2 Jan 2009 | 29 Sept 2014 | British | 57 years |
| Kirsty Ann-marie Wilman | Director | 11 Jan 2018 | 29 Mar 2019 | British | 46 years |
| Kirsty Ann-marie Wilman | Director | 2 Mar 2020 | 31 May 2024 | British | 46 years |
| Martin Richard Moore | Director | 1 Oct 2013 | 31 Dec 2014 | British | 70 years |
| Mepc Secretaries Limited | Corporate Secretary | 20 Jul 2005 | 31 Jan 2018 | United Kingdom | - |
| Nicholas Charles William Mustoe | Director | 1 Mar 2006 | 31 May 2006 | British | 65 years |
| Nicholas John Randall | Director | 1 Apr 2016 | 23 Mar 2022 | British | 67 years |
| Peter Geoffrey Freeman | Director | 1 Mar 2006 | 16 Feb 2011 | British | 71 years |
| Rachel Page | Director | 16 Jan 2006 | 30 Apr 2015 | British | 60 years |
| Richard Anthony Harrold | Director | 1 Aug 2005 | 8 Dec 2005 | British | 80 years |
| Richard Armand De Blaby | Director | 19 Dec 2005 | 1 Apr 2014 | British | 66 years |
| Roger Edward Quince | Director | 1 Aug 2005 | 31 Mar 2009 | British | 80 years |
| Rupert James Clarke | Director | 1 Mar 2006 | 1 Dec 2010 | British | 68 years |
| Timothy William John Turnbull | Director | 21 May 2008 | 31 Mar 2011 | British | 56 years |