| CENTRICA SECRETARIES LIMITED ACTIVE | Secretary | 29 Feb 2012 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| ROY, Rajarshi, Dr ACTIVE | Director | 08 Jun 2021 | | United Kingdom | January 1975 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| SCARGILL, Martin Robert ACTIVE | Director | 26 Mar 2021 | | United Kingdom | February 1976 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| BARKER, Helen Elizabeth RESIGNED | Secretary | 16 Aug 2007 | 31 Mar 2008 | | | Ferry Cottage, Ferry Lane, Wargrave, Berkshire, RG10 8ET |
| DAVIES, Philip William RESIGNED | Secretary | 01 Dec 2003 | 16 Aug 2007 | | | 26 Frances Road, Windsor, Berkshire, SL4 3AA |
| FOO, Julia Hui Ching RESIGNED | Secretary | 04 Jan 2010 | 29 Feb 2012 | | | Venture House 42-54, London Road, Staines, Middlesex, TW18 4HF |
| FOO, Julia Hui Ching RESIGNED | Secretary | 31 Mar 2008 | 25 Sep 2009 | | | 39, Clarendon Court, 128-132 Clarence Road, Windsor, Berkshire, SL4 5BL |
| LODGE, Matthew Sebastian RESIGNED | Secretary | 25 Sep 2009 | 04 Jan 2010 | | | 25, Avondale Road, Mortlake, London, SW14 8PU |
| ALNERY INCORPORATIONS NO 1 LIMITED RESIGNED | Nominee Secretary | 25 Oct 2002 | 08 Nov 2002 | | | 9 Cheapside, London, EC2V 6AD |
| CENTRICA SECRETARIES LIMITED RESIGNED | Secretary | 08 Nov 2002 | 01 Dec 2003 | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COLLINSON, Graeme Stuart, Dr RESIGNED | Director | 21 Jul 2008 | 31 Jan 2014 | England | May 1956 | Venture House, 42-54 London Road, Staines, Middlesex, TW18 4HF |
| CRAIG, James David RESIGNED | Director | 01 Oct 2013 | 11 Feb 2015 | The Netherlands | March 1968 | Venture House, 42-54 London Road, Staines, Middlesex, TW18 4HF, United Kingdom |
| DAWSON, Ian Grant RESIGNED | Director | 03 Nov 2003 | 06 Mar 2019 | United Kingdom | March 1959 | Woodland House, Woodland Park, Hessle, HU13 0FA, United Kingdom |
| FORD, Johnathan Richard RESIGNED | Director | 24 Jul 2020 | 18 Jan 2021 | England | September 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| GARSTANG, Michael John RESIGNED | Director | 08 Nov 2002 | 27 Jun 2008 | United Kingdom | June 1948 | Knott Barn, Tatham Fells, Wray, Lancaster, LA2 8PS |
| MCKENNA, Gregory Craig RESIGNED | Director | 11 Feb 2015 | 05 Aug 2021 | United Kingdom | January 1966 | Woodland House, Woodland Park, Hessle, HU13 0FA, United Kingdom |
| O'SHEA, Christopher RESIGNED | Director | 06 Mar 2019 | 24 Jul 2020 | United Kingdom | October 1973 | Woodland House, Woodland Park, Hessle, HU13 0FA, United Kingdom |
| RINGROSE, Katherine Beresford RESIGNED | Director | 18 Jan 2021 | 08 Jun 2021 | United Kingdom | May 1974 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| ULRICH, Jacob Shields RESIGNED | Director | 08 Nov 2002 | 03 Nov 2003 | England | February 1953 | 74 Drayton Gardens, London, SW10 9SB |
| WALKER, Bruce Douglas RESIGNED | Director | 03 Nov 2003 | 31 Jul 2008 | | July 1953 | 90 Kenwood Drive, Beckenham, Kent, BR3 6RA |
| WILLS, Simon Marc RESIGNED | Director | 31 Jul 2008 | 01 Oct 2013 | England | August 1967 | Venture House, 42-54 London Road, Staines, Middlesex, TW18 4HF |
| ALNERY INCORPORATIONS NO 1 LIMITED RESIGNED | Nominee Director | 25 Oct 2002 | 08 Nov 2002 | | | 9 Cheapside, London, EC2V 6AD |
| ALNERY INCORPORATIONS NO 2 LIMITED RESIGNED | Nominee Director | 25 Oct 2002 | 08 Nov 2002 | | | 9 Cheapside, London, EC2V 6AD |