| Adam David Christopher Westley | Director | 20 Sept 2018 | 2 Sept 2019 | British | 57 years |
| Alan William Mcculloch | Director | 2 Sept 2019 | 30 Jul 2021 | British | 60 years |
| Andrew William Hodges | Director | 30 Jun 2016 | 12 Jul 2018 | British | 59 years |
| Centrica Directors Limited | Corporate Director | 5 May 2004 | 21 Nov 2007 | United Kingdom | - |
| Charlotte Redcliffe | Director | 21 Nov 2007 | 30 Jul 2010 | British | 62 years |
| Graeme Stuart Collinson | Director | 13 Feb 2009 | 21 Oct 2013 | British | 70 years |
| Ian Grant Dawson | Director | 21 Nov 2007 | 30 Jul 2010 | British | 67 years |
| Jacob Shields Ulrich | Director | 24 Sept 2003 | 5 May 2004 | British | 73 years |
| John Frederick Watson Watts | Director | 30 Jul 2010 | 21 Oct 2013 | British | 72 years |
| Justine Michelle Campbell | Director | 12 Jul 2018 | 20 Sept 2018 | British | 56 years |
| Moira Lynne Turner | Director | 21 Nov 2007 | 18 Mar 2008 | British | 64 years |
| Moira Lynne Turner | Director | 22 Jul 2009 | 30 Jul 2010 | British | 64 years |
| Nicola Carroll | Director | 21 Oct 2013 | 30 Jun 2016 | British | 67 years |
| Paul Ian Hedley | Director | 21 Nov 2007 | 22 Jul 2009 | British | 57 years |
| Rm Nominees Limited | Corporate Director | 24 Sept 2003 | 24 Sept 2003 | - | - |
| Rm Registrars Limited | Corporate Secretary | 24 Sept 2003 | 24 Sept 2003 | United Kingdom | - |
| Sarwjit Sambhi | Director | 30 Jul 2010 | 12 Aug 2013 | British | 57 years |
| Sarwjit Sambhi | Director | 24 Sept 2003 | 5 May 2004 | British | 57 years |
| Thomas Edward Hinton | Director | 30 Jul 2010 | 21 Oct 2013 | British | 47 years |