| CENTRICA SECRETARIES LIMITED ACTIVE | Secretary | 30 Sep 2004 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BERRYMAN, Mark Andrew ACTIVE | Director | 28 Mar 2025 | | United Kingdom | March 1977 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| DICKINSON, James Michael ACTIVE | Director | 02 Oct 2023 | | United Kingdom | June 1980 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| FLETCHER, Richard ACTIVE | Director | 11 Jul 2023 | | United Kingdom | June 1976 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| OATHAM, George Thomas RESIGNED | Secretary | | 30 Sep 2004 | | | 125 Lammas Avenue, Mitcham, Surrey, CR4 2LZ |
| ALEXANDER, David William Elliot RESIGNED | Director | 17 Apr 2012 | 10 Oct 2016 | United Kingdom | August 1961 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BATEMAN, Matthew James RESIGNED | Director | 03 Nov 2014 | 10 Oct 2016 | United Kingdom | October 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BATEMAN, Matthew James RESIGNED | Director | 01 Oct 2012 | 01 Sep 2014 | United Kingdom | October 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BHATIA, Naznina RESIGNED | Director | 07 Jul 2010 | 01 Oct 2012 | England | August 1965 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BUCK, Steven John RESIGNED | Director | 10 Oct 2016 | 24 Jan 2018 | United Kingdom | February 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CAMPBELL, Justine Michelle RESIGNED | Director | 10 Oct 2016 | 27 Apr 2017 | United Kingdom | August 1970 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CHAPLIN, John Bernard RESIGNED | Director | | 31 Mar 2000 | | April 1948 | 10 Syon Court, 107 London Road, Brentford, Middlesex, TW8 8JS |
| COOK, Albert William RESIGNED | Director | | 31 Dec 1999 | United Kingdom | September 1929 | Knoll House 82 Wheathampstead Road, Harpenden, Hertfordshire, AL5 1JB |
| HODGES, Mark Steven RESIGNED | Director | 10 Oct 2016 | 28 Feb 2019 | United Kingdom | September 1965 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HOOPER, Susan Mary RESIGNED | Director | 01 Sep 2014 | 31 Oct 2014 | England | February 1960 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| KIRWAN, Michael David RESIGNED | Director | 01 Apr 2019 | 31 Aug 2020 | Ireland | September 1971 | 1, Warrington Place, Dublin, 2, Ireland |
| KNOTT, Julian Alexander Roger RESIGNED | Director | 02 Jul 2007 | 31 Dec 2007 | England | March 1957 | 16 Biggin Hill Close, Riverside Walk, Kingston Upon Thames, Surrey, KT2 5GB |
| LANGFORD, Michael Alan Sussex RESIGNED | Director | 04 Jan 2000 | 12 Nov 2002 | | July 1958 | 44 Eastmont Road, Hinchley Wood, Esher, Surrey, KT10 9AZ |
| MUSSENDEN, Sarah Elizabeth RESIGNED | Director | 01 Jul 2019 | 30 Jun 2021 | United Kingdom | October 1965 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| OZSANLAV, Richard RESIGNED | Director | 26 Nov 2009 | 13 Sep 2010 | United Kingdom | May 1969 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PETERS, Ian RESIGNED | Director | 20 Apr 2009 | 26 Nov 2009 | Great Britain | October 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PETERS, Ian RESIGNED | Director | 30 Sep 2004 | 13 Jul 2005 | Great Britain | October 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PHILLIPS, Stuart David RESIGNED | Director | 30 Jun 2021 | 01 Dec 2022 | United Kingdom | March 1977 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| RATCLIFFE, Daniel Peter RESIGNED | Director | 16 Jul 2012 | 08 Sep 2013 | United Kingdom | June 1981 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| RONALD, Ivan Edward RESIGNED | Director | 24 Jan 2018 | 05 Jul 2019 | England | November 1972 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| ROY, Rajarshi, Dr RESIGNED | Director | 27 Apr 2017 | 17 Dec 2023 | United Kingdom | January 1975 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SIBER, Jana RESIGNED | Director | 01 Dec 2022 | 28 Feb 2025 | England | May 1972 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| SIDDALL, Toby James Bailey RESIGNED | Director | 31 Dec 2007 | 07 Jul 2010 | United Kingdom | September 1971 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SMEDLEY, Oliver Mark RESIGNED | Director | 01 Oct 2012 | 01 Sep 2014 | England | April 1970 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SMEDLEY, Oliver Mark RESIGNED | Director | 13 Sep 2010 | 16 Jul 2012 | England | April 1970 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SMITH, Clive Robert RESIGNED | Director | | 30 Apr 2007 | | August 1958 | Brook House, Westcott Street, Westcott, Surrey, RH4 3NY |
| STERN, Christopher John RESIGNED | Director | 13 Jul 2005 | 17 Apr 2012 | England | January 1957 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| TODD, Alistair Mark RESIGNED | Director | 01 Sep 2014 | 10 Oct 2016 | United Kingdom | November 1975 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| TURNER, Moira Lynne RESIGNED | Director | 30 Sep 2004 | 13 Jul 2005 | England | July 1962 | Woodend House, 11 Dower Close, Beaconsfield, Buckinghamshire, HP9 1XZ |
| WALTER, David William RESIGNED | Director | 09 Dec 2009 | 19 Dec 2011 | United Kingdom | May 1976 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| WESTON, Christopher Phillip Anthony RESIGNED | Director | 13 Jul 2005 | 05 May 2009 | United Kingdom | January 1964 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| WILLIAMSON, Adrian RESIGNED | Director | 30 Sep 2004 | 25 Jul 2006 | | November 1958 | 7 Fernwood Close, St Ives, Hampshire, BH24 2NQ |
| ZOCKOLL, James Francis RESIGNED | Director | | 30 Sep 2004 | United Kingdom | February 1930 | Highclere 15 Fife Road, London, SW14 7EJ |
| ZOCKOLL, James Allen RESIGNED | Director | | 30 Sep 2004 | | March 1963 | Box 132, Westfield Centre, Ohio 44251 |
| ZOCKOLL, Steven Mark RESIGNED | Director | | 30 Sep 2004 | United Kingdom | October 1961 | 14 Wilbury Avenue, South Cheam, Surrey, SM2 7DU |