| Andrew Nigel Halford | Director | 31 Jul 1997 | 22 Dec 1998 | British | 67 years |
| Christopher John Boon | Director | 31 Jul 1997 | 19 Mar 1999 | British | 80 years |
| Deborah Gandley | Director | 20 Jul 2010 | 14 Dec 2020 | British | 55 years |
| E.on Uk Directors Limited | Corporate Director | 22 Dec 1998 | 22 Mar 2017 | United Kingdom | - |
| E.on Uk Secretaries Limited | Corporate Director | 22 Dec 1998 | 20 Jul 2010 | United Kingdom | - |
| E.on Uk Secretaries Limited | Corporate Secretary | 28 May 1999 | 22 Mar 2017 | United Kingdom | - |
| Jose Roberto Davila | Director | 14 Dec 2020 | 14 Aug 2024 | British | 57 years |
| Julie Viviene Dawes | Secretary | 31 Jul 1997 | 28 May 1999 | British | - |
| Michael Robert French | Director | 14 Dec 2020 | 31 Oct 2021 | German | 58 years |
| Sara Lyn Vaughan | Director | 22 Mar 2017 | 26 Nov 2020 | British | 62 years |