| Adrian Joseph Chatterton | Director | 10 Dec 2012 | 13 Nov 2020 | British | 63 years |
| Alan Paul Raymant | Director | 4 Nov 2002 | 7 Oct 2003 | British | 63 years |
| Alice Kyne Delahunty | Director | 22 Oct 2015 | 31 Mar 2018 | Irish | 45 years |
| Benjamin James Freeman | Director | 1 Jul 2020 | 30 Apr 2022 | British | 49 years |
| Chantal Thomas | Secretary | 13 Sept 2001 | 1 Jul 2002 | British | - |
| Christopher William Morris | Director | 23 Jan 2001 | 30 Jun 2003 | British | 79 years |
| Daniel Steven Shaw | Director | 22 Oct 2015 | 1 Mar 2017 | British | 68 years |
| David Allen Farrier | Director | 23 Jan 2001 | 4 Nov 2002 | British | 76 years |
| David Gerald Rogers | Director | 1 Jan 2008 | 10 Dec 2012 | British | 72 years |
| E.on Uk Secretaries Limited | Corporate Secretary | 10 Dec 2012 | 30 Sept 2019 | United Kingdom | - |
| Ian Peter Fairclough | Secretary | 23 Jan 2001 | 13 Sept 2001 | British | - |
| Ian Peter Fairclough | Secretary | 1 Jul 2002 | 13 Jul 2012 | British | - |
| Ian Philip Johnson | Director | 10 Dec 2012 | 30 Jun 2015 | British | 59 years |
| Ingleby Holdings Limited | Corporate Nominee Director | 19 Dec 2000 | 23 Jan 2001 | United Kingdom | - |
| Ingleby Nominees Limited | Corporate Nominee Secretary | 19 Dec 2000 | 23 Jan 2001 | United Kingdom | - |
| Jason Scagell | Director | 7 Oct 2003 | 19 Dec 2006 | British | 59 years |
| Keith Plowman | Director | 19 Dec 2006 | 1 Jan 2008 | British | 68 years |
| Paul John Webster | Director | 13 Sept 2001 | 22 Jun 2012 | British | 71 years |
| Ralf Drüppel | Director | 10 Dec 2012 | 22 Oct 2015 | German | 59 years |
| Rudolf Neuwirth | Director | 10 Dec 2012 | 30 Jun 2015 | German | 53 years |
| Simon Prousch | Director | 18 Jun 2018 | 22 Mar 2022 | German | 46 years |
| Stephen Edmund Foster | Director | 23 Jan 2001 | 13 Sept 2001 | British | 63 years |
| Timothy James Bell | Director | 1 Mar 2017 | 30 Jun 2020 | British | 53 years |