| CENTRICA SECRETARIES LIMITED ACTIVE | Secretary | 08 Sep 2000 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BERRYMAN, Mark Andrew ACTIVE | Director | 03 Jul 2025 | | United Kingdom | March 1977 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BOWE, Amanda Helen ACTIVE | Director | 02 Jan 2019 | | Scotland | February 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| ESPLEY, Helen Louise ACTIVE | Director | 10 Dec 2025 | | United Kingdom | October 1976 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| KINGSHOTT, Stephen Mitchell ACTIVE | Director | 03 Jun 2026 | | United Kingdom | November 1963 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PHIPPS, Robin Ashley ACTIVE | Director | 29 Aug 2018 | | United Kingdom | December 1950 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| VANN, Stuart Robert ACTIVE | Director | 29 Jan 2019 | | United Kingdom | July 1971 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| CALDWELL, Lucy Elizabeth RESIGNED | Secretary | 01 Dec 1997 | 08 Sep 2000 | | | 19 St Davids Drive, Englefield Green, Surrey, TW20 0BA |
| FELTON, Elizabeth Jayne RESIGNED | Secretary | 01 Mar 1997 | 01 Oct 1997 | | | 25 Merlin Clove, Winkfield Row, Bracknell, Berkshire, RG42 7TD |
| FURMSTON, Teresa Jane RESIGNED | Secretary | 30 Jan 1997 | 22 Feb 1999 | | | 12 Hinchley Close, Esher, Surrey, KT10 0BY |
| GARRIHY, Anne RESIGNED | Secretary | 31 Jan 1997 | 31 Jan 1997 | | | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| GARRIHY, Anne RESIGNED | Secretary | 27 Jun 1996 | 30 Jan 1997 | | | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| PATIENCE, Donald William John RESIGNED | Secretary | 22 May 1996 | 27 Jun 1996 | | | Burnside Little Ann, Abbotts Ann, Andover, Hampshire, SP11 7NW |
| SMITH, Marie RESIGNED | Secretary | 14 May 1996 | 22 May 1996 | | | 10 Hatch Place, Kingston Upon Thames, Surrey, KT2 5NB |
| CLIFFORD CHANCE SECRETARIES LIMITED RESIGNED | Nominee Secretary | 22 Dec 1995 | 13 May 1996 | | | 10 Upper Bank Street, London, E14 5JJ |
| HACKWOOD SECRETARIES LIMITED RESIGNED | Nominee Secretary | 13 May 1996 | 14 May 1996 | | | One Silk Street, London, EC2Y 8HQ |
| BATEMAN, Matthew James RESIGNED | Director | 30 Oct 2010 | 31 Jan 2022 | England | October 1968 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BELL, Janette Susan RESIGNED | Director | 14 Oct 2008 | 30 Sep 2009 | United Kingdom | July 1964 | Brickyards, Dunmow Road, Fyfield, Essex, CM5 0NW |
| BENTLEY, Phillip Keague RESIGNED | Director | 20 Nov 2000 | 14 Oct 2008 | United Kingdom | January 1959 | Pembroke House, 6 Waldegrave Park, Twickenham, Middlesex, TW1 4TE |
| BHATIA, Naznina RESIGNED | Director | 01 Dec 2014 | 27 Oct 2015 | England | August 1965 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BHATIA, Naznina RESIGNED | Director | 27 Sep 2010 | 22 Oct 2012 | England | August 1965 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BOOSE, Scott RESIGNED | Director | 19 Mar 2008 | 22 Jul 2010 | | November 1971 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BREM, Andrew Peter David RESIGNED | Director | 29 Jul 2014 | 30 Nov 2014 | United Kingdom | February 1968 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| BUCK, Steven John RESIGNED | Director | 22 Feb 2010 | 29 Jul 2013 | United Kingdom | February 1969 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CAMERON, Alisdair Charles John RESIGNED | Director | 05 May 2009 | 22 Feb 2010 | England | May 1965 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CASTAGNO, John RESIGNED | Director | 16 Oct 2013 | 30 Jun 2019 | United Kingdom | December 1958 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CATCHPOLE, Elizabeth Margaret RESIGNED | Director | 02 Jan 2019 | 31 May 2021 | England | March 1965 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| CHARLTON, Peter John RESIGNED | Nominee Director | 22 Dec 1995 | 13 May 1996 | | December 1955 | 17 Kirkdale Road, Harpenden, Hertfordshire, AL5 2PT |
| CLARE, Mark Sydney RESIGNED | Director | 14 May 1996 | 09 Mar 2006 | | August 1957 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COLLIER, Edward Arthur Yarlet RESIGNED | Director | 19 Mar 2008 | 05 May 2009 | | February 1961 | Whitehill Close, Old Whitehill, Tackley, Oxfordshire, OX5 3AB |
| DALE, Jane Elizabeth RESIGNED | Director | 27 Nov 2009 | 31 Dec 2018 | United Kingdom | February 1960 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| DUTTON, Edward Michael RESIGNED | Director | 30 Jan 2015 | 24 Oct 2017 | United Kingdom | October 1969 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| GARDNER, Roy Alan, Sir RESIGNED | Director | 14 May 1996 | 30 Jun 2006 | | August 1945 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| GOADBY, David Richard RESIGNED | Director | 26 Nov 2009 | 17 Sep 2010 | Scotland | January 1969 | Ashtead, 89 Hepburn Gardens, St Andrews, Fife, KY16 9LT, Scotland |
| HINDLEY, David John RESIGNED | Director | 20 Feb 2019 | 30 Sep 2021 | United Kingdom | December 1960 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HOOPER, Susan Mary RESIGNED | Director | 17 Jan 2014 | 31 Oct 2014 | England | February 1960 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| JANSEN, Christopher Trevor Peter RESIGNED | Director | 22 Jul 2010 | 05 Apr 2013 | United Kingdom | July 1970 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| KIRWAN, Michael David RESIGNED | Director | 13 Sep 2019 | 31 Aug 2020 | Ireland | September 1971 | 1, Warrington Place, Dublin, 2, Ireland |
| MCLEOD, Charles Lee RESIGNED | Director | 20 Feb 2019 | 16 Dec 2021 | United Kingdom | October 1972 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| ORR, William John RESIGNED | Director | 25 Feb 2014 | 31 Mar 2014 | England | December 1970 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PETERS, Ian RESIGNED | Director | 03 Apr 2009 | 31 Dec 2017 | Great Britain | October 1958 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PHILLIPS, Stuart David RESIGNED | Director | 16 Dec 2021 | 01 Dec 2022 | United Kingdom | March 1977 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| PIJLS, Henricus Lambertus RESIGNED | Director | 07 Nov 2012 | 31 Dec 2013 | United Kingdom | December 1965 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| RICHARDS, Martin Edgar RESIGNED | Nominee Director | 22 Dec 1995 | 13 May 1996 | | February 1943 | 89 Thurleigh Road, London, SW12 8TY |
| RONALD, Ivan Edward RESIGNED | Director | 28 Mar 2018 | 03 Apr 2019 | England | November 1972 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| RUPARELIA, Sima RESIGNED | Director | 15 Oct 2021 | 28 Feb 2026 | United Kingdom | March 1975 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| SAMBHI, Sarwjit RESIGNED | Director | 20 Sep 2016 | 13 Sep 2019 | United Kingdom | July 1969 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SIBER, Jana RESIGNED | Director | 21 Jul 2022 | 28 Feb 2025 | England | May 1972 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| SIDDALL, Toby James Bailey RESIGNED | Director | 05 May 2009 | 23 Sep 2010 | United Kingdom | September 1971 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| SMEDLEY, Oliver Mark RESIGNED | Director | 29 Jul 2013 | 19 Jan 2015 | England | April 1970 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| STERN, Christopher John RESIGNED | Director | 26 Jul 2006 | 30 Sep 2018 | England | January 1957 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| TAVAZIVA, Anne Leigh RESIGNED | Director | 22 Nov 2019 | 10 Jun 2020 | England | February 1973 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| TEMPLE-MORRIS, Suzanna Marjan RESIGNED | Director | 09 Dec 2008 | 23 May 2011 | England | June 1970 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| THOMAS, Michael Lindsay RESIGNED | Director | 20 Apr 2023 | 03 Nov 2025 | United Kingdom | December 1970 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| TODD, Alistair Mark RESIGNED | Director | 15 May 2014 | 28 Mar 2018 | United Kingdom | November 1975 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| UZIELLI, Michael Robin RESIGNED | Director | 24 Jan 2011 | 29 May 2012 | | April 1970 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| VLEMMIKS, Richard John RESIGNED | Director | 23 Aug 2010 | 23 May 2011 | United Kingdom | February 1971 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| WESTON, Christopher Phillip Anthony RESIGNED | Director | 09 Mar 2006 | 05 May 2009 | United Kingdom | January 1964 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| WOOD, Roger Nicholas Brownlow RESIGNED | Director | 14 May 1996 | 30 Sep 2004 | United Kingdom | July 1942 | Ryemead House, Lower Hampton Road, Sunbury On Thames, Middlesex, TW16 5PR |
| YOUNG, David Thomas Mcaree RESIGNED | Director | 26 Jun 2009 | 31 Dec 2018 | England | June 1961 | Millstream Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HACKWOOD DIRECTORS LIMITED RESIGNED | Nominee Director | 13 May 1996 | 14 May 1996 | | | One Silk Street, London, EC2Y 8HQ |
| HACKWOOD SECRETARIES LIMITED RESIGNED | Nominee Director | 13 May 1996 | 14 May 1996 | | | One Silk Street, London, EC2Y 8HQ |