| CENTRICA SECRETARIES LIMITED ACTIVE | Secretary | 09 Aug 2000 | | | | 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 |
| WHITE, Christopher John Lockhart ACTIVE | Director | 07 May 2024 | | United Kingdom | February 1983 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| WOOD, Matthew Christopher ACTIVE | Director | 10 Oct 2025 | | United Kingdom | June 1987 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CALDWELL, Lucy Elizabeth RESIGNED | Secretary | 21 Nov 1997 | 09 Aug 2000 | | | 19 St Davids Drive, Englefield Green, Surrey, TW20 0BA |
| FURMSTON, Teresa Jane RESIGNED | Secretary | 25 Sep 1997 | 21 Nov 1997 | | | 55 Mayfield Avenue, Southgate, London, N14 6DY |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Secretary | 04 Nov 1996 | 25 Sep 1997 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |
| ALLEN, Tracy Lorraine RESIGNED | Director | 18 Jul 2001 | 01 Nov 2001 | | December 1966 | 62 Hazel Close, Whitton, Twickenham, Middlesex, TW2 7NR |
| BENNETT, Alan RESIGNED | Director | 28 Apr 2005 | 31 Oct 2007 | United Kingdom | May 1952 | Hillside Cottage, Hillside Park, Sunningdale, Berkshire, SL5 0EY |
| CALDWELL, Lucy Elizabeth RESIGNED | Director | 26 Jul 1999 | 01 Nov 2001 | | February 1968 | 19 St Davids Drive, Englefield Green, Surrey, TW20 0BA |
| CLARK, Simon Richard RESIGNED | Director | 27 Apr 2004 | 04 Jul 2007 | | January 1964 | Orchard Cross, Upper Icknield Way Whiteleaf, Princes Risborough, Buckinghamshire, HP27 0LX |
| COLLINSON, Graeme Stuart, Dr RESIGNED | Director | 13 Feb 2009 | 01 Jan 2014 | England | May 1956 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CROWTHER, David Anthony James RESIGNED | Director | 16 Dec 2010 | 04 Apr 2012 | England | November 1962 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| DAWSON, Ian Grant RESIGNED | Director | 25 Sep 1997 | 31 Jan 2000 | | March 1959 | The West Wing Burfield Lodge, Burfield Road, Old Windsor, Berkshire, SL4 2LH |
| DENNIS, Michael Kenneth RESIGNED | Director | 06 Nov 2019 | 07 May 2024 | United Kingdom | July 1981 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| EVANS, Gregory Alan RESIGNED | Director | 18 Jun 2013 | 24 Mar 2014 | Wales | March 1957 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| FURMSTON, Teresa Jane RESIGNED | Director | 25 Sep 1997 | 22 Feb 1999 | | May 1967 | 12 Hinchley Close, Esher, Surrey, KT10 0BY |
| FUTYAN, Mark Ramsey RESIGNED | Director | 02 Nov 2016 | 09 Dec 2019 | England | March 1978 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| GARRIHY, Anne RESIGNED | Director | 25 Sep 1997 | 17 Jul 2001 | | June 1960 | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| GARSTANG, Michael John RESIGNED | Director | 27 Apr 2004 | 30 Jun 2008 | United Kingdom | June 1948 | Knott Barn, Tatham Fells, Wray, Lancaster, LA2 8PS |
| HINTON, Thomas Edward RESIGNED | Director | 30 Jun 2010 | 15 Nov 2013 | United Kingdom | March 1979 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| KNIGHT, John Edward RESIGNED | Director | 01 Jan 2014 | 24 Oct 2014 | England | May 1966 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| KOCH DE GOOREYND, Peter Frederick Leopold RESIGNED | Director | 02 Feb 2015 | 05 Sep 2016 | England | July 1958 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| LANE, Gearoid Martin RESIGNED | Director | 27 Apr 2004 | 04 Jul 2007 | United Kingdom | August 1964 | 66 Saint Johns Road, Isleworth, Middlesex, TW7 6NW |
| LONGMUIR, Ailsa Zoya RESIGNED | Director | 01 Oct 2021 | 26 Jun 2023 | United Kingdom | November 1982 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| MCCORD, Richard Matthew RESIGNED | Director | 04 Apr 2012 | 06 Nov 2019 | United Kingdom | September 1973 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| MCKENNA, Gregory Craig RESIGNED | Director | 08 Mar 2021 | 03 Jun 2024 | England | January 1966 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| MURPHY, Terence Columba RESIGNED | Director | 24 Mar 2014 | 02 Nov 2016 | United Kingdom | June 1964 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| PIKUNIC, Jorge Pablo RESIGNED | Director | 09 Dec 2019 | 08 Mar 2021 | United Kingdom | January 1976 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD, United Kingdom |
| REDFERN, Simon Patrick RESIGNED | Director | 26 Nov 2012 | 28 Feb 2017 | United Kingdom | July 1965 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| RITCHIE, Ian RESIGNED | Director | 31 Jan 2000 | 01 Nov 2001 | United Kingdom | May 1952 | 66 Cherwell Drive, Marston, Oxford, Oxfordshire, OX3 0LZ |
| SAMBHI, Sarwjit RESIGNED | Director | 27 Apr 2004 | 28 Apr 2005 | | July 1969 | Old Priory, The Green, Datchet, Berkshire, SL3 9JL |
| SPENCE, James RESIGNED | Director | 31 Oct 2007 | 30 Jun 2010 | United Kingdom | November 1968 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| STELLA, Christian Andrew RESIGNED | Director | 03 Jun 2024 | 10 Oct 2025 | Italy | March 1981 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| TAYLOR, Mark RESIGNED | Director | 04 Oct 2016 | 30 Apr 2018 | United Kingdom | September 1970 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| THOMPSON, Alan Stewart RESIGNED | Director | 04 Jul 2007 | 28 Sep 2012 | United Kingdom | January 1961 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| WHEELER, Susan Elizabeth RESIGNED | Director | 04 Jul 2007 | 16 Dec 2010 | United Kingdom | October 1964 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CENTRICA DIRECTORS LIMITED RESIGNED | Director | 01 Nov 2001 | 27 Apr 2004 | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COMBINED NOMINEES LIMITED RESIGNED | Nominee Director | 04 Nov 1996 | 25 Sep 1997 | | | Victoria House, 64 Paul Street, London, EC2A 4NA |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Director | 04 Nov 1996 | 25 Sep 1997 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |