| Brendan Martin Stafford | Director | 12 Sept 2007 | 30 Apr 2008 | British | 64 years |
| Brendan Martin Stafford | Director | 1 Jan 2015 | 11 Apr 2016 | British | 64 years |
| Brian Jungwirth | Director | 1 Jan 2015 | 31 Dec 2017 | American | 53 years |
| Christoph Karl Wilhelm Hanewinkel | Director | 4 Dec 2017 | 1 Aug 2019 | German | 55 years |
| Damian James Bunyan | Director | 28 Feb 2006 | 14 Oct 2013 | British | 58 years |
| David Charles Adrian Baumber | Director | 1 Aug 2019 | 31 Mar 2023 | British | 52 years |
| Derek Parkin | Director | 17 Jul 2006 | 30 Apr 2008 | British | 67 years |
| E.on Uk Secretaries Limited | Corporate Secretary | 1 Feb 2011 | 27 Sept 2022 | United Kingdom | - |
| Jorg Becker | Director | 9 Nov 2005 | 30 Sept 2009 | German | 65 years |
| Jorg Zunft | Director | 9 Nov 2005 | 28 Feb 2006 | German | 62 years |
| Jörg Koletzki | Director | 1 Feb 2012 | 31 Dec 2014 | German | 59 years |
| Karl Josef Markgraf | Director | 15 Oct 2013 | 30 Sept 2017 | German | 59 years |
| Keith Raymond Monk | Director | 4 Jun 2012 | 31 Dec 2014 | British | 58 years |
| Kevin Michael Thomas | Director | 9 Nov 2005 | 30 Jun 2006 | British | 65 years |
| Manuel Ignacio Santiago Blanco | Director | 11 Apr 2016 | 12 Dec 2018 | Spanish | 53 years |
| Michael David Lewis | Director | 1 Jan 2018 | 1 Aug 2019 | British | 59 years |
| Patrick Mombaur | Director | 1 Oct 2009 | 31 Dec 2011 | German | 57 years |
| Radek Farka | Secretary | 31 Dec 2008 | 1 Feb 2011 | British | - |
| Robert Taylor | Director | 9 Nov 2005 | 12 Sept 2007 | British | 65 years |
| Ross Malcolm Taylor | Director | 9 Nov 2005 | 1 May 2010 | British | 60 years |
| Tracey Linda Richards | Director | 1 May 2010 | 3 Jun 2012 | British | 59 years |
| Uwe Winter | Secretary | 9 Nov 2005 | 31 Dec 2008 | British | - |
| Werner Hecker | Director | 9 Nov 2005 | 30 Apr 2008 | German | 78 years |
