| MUMFORD, Christopher Paul ACTIVE | Secretary | 27 Jul 2006 | | | | Driscoll 2, Ellen Street, Cardiff, CF10 4BP, United Kingdom |
| ALDRIDGE, Ian Craig ACTIVE | Director | 09 Sep 2022 | | England | February 1963 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| BRETT, Richard Mark ACTIVE | Director | 28 Jul 2023 | | England | June 1985 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| HOCKMAN, Samuel ACTIVE | Director | 31 Mar 2025 | | England | September 1982 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| LINSDELL, Clive Eric ACTIVE | Director | 25 Jan 2013 | | United Kingdom | March 1962 | Energy House, Woolpit Business Park, Woolpit, Bury St Edmunds, Suffolk, IP31 9UP |
| SHAW, Neil Edward ACTIVE | Director | 09 May 2024 | | United Kingdom | April 1962 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| TROUNSON, John ACTIVE | Director | 01 Dec 2017 | | United Kingdom | December 1966 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| DAWES, Julie Viviene RESIGNED | Secretary | | 20 Oct 1992 | | | Water Mill House, Haughton, Retford, Nottinghamshire, DN22 8DY |
| LEE, Simon John RESIGNED | Secretary | 11 Mar 2013 | 17 Jun 2016 | | | Energy House, Woolpit Business Park, Woolpit, Bury St Edmunds, Suffolk, IP31 9UP, United Kingdom |
| MANNING, Edward Andrew RESIGNED | Secretary | 06 Nov 2023 | 25 Jun 2024 | | | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| WARD, Russell Adrian Edmund RESIGNED | Secretary | 31 Mar 2003 | 27 Jul 2006 | | | Belmont Lodge, Catsash Road Christchurch, Newport, NP18 1LB |
| POWERGEN SECRETARIES LIMITED RESIGNED | Secretary | 20 Oct 1992 | 31 Mar 2003 | | | 53 New Broad Street, London, EC2M 1SL |
| BADGER, Christopher Duncan RESIGNED | Director | 19 Aug 2002 | 31 Mar 2003 | | July 1957 | 10 College Street, East Bridgford, Nottingham, Nottinghamshire, NG13 8LE |
| BRIDGEWATER, Peter Jeremy RESIGNED | Director | 01 Mar 2002 | 31 Mar 2003 | England | March 1963 | 25 Combrook, Warwick, Warwickshire, CV35 9HP |
| COLLINS, Graham RESIGNED | Director | 24 Mar 2017 | 16 Apr 2019 | England | October 1978 | Energy House, Woolpit Business Park, Windmill Avenue, Woolpit, Bury St. Edmunds, Suffolk, IP30 9UP |
| CORNEY, Darryl John RESIGNED | Director | 21 Jun 2006 | 28 Jul 2023 | England | May 1960 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| EVELEIGH, Paul John RESIGNED | Director | 02 Aug 1999 | 19 Aug 2002 | | June 1956 | 11 Cotheridge Close, Monkspath, Solihull, West Midlands, B90 4LS |
| FISHER, Robert John RESIGNED | Director | 02 Apr 2003 | 31 Aug 2005 | | April 1951 | 34 Heol Wen, Rhiwbina, Cardiff, CF14 6EG |
| GOLBY, Paul, Dr RESIGNED | Director | 26 Mar 2003 | 31 Mar 2003 | United Kingdom | February 1951 | Westwood Way, Westwood Business Park, Coventry, West Midlands, CV4 8LG |
| GOLBY, Paul, Dr RESIGNED | Director | 26 Mar 2003 | 31 Mar 2003 | United Kingdom | February 1951 | Westwood Way, Westwood Business Park, Coventry, West Midlands, CV4 8LG |
| GOLBY, Paul, Dr RESIGNED | Director | 21 Dec 1998 | 24 Oct 2001 | United Kingdom | February 1951 | Westwood Way, Westwood Business Park, Coventry, West Midlands, CV4 8LG |
| HAMLIN, Richard John RESIGNED | Director | 21 Dec 1998 | 02 Aug 1999 | | April 1964 | 6 Troutbeck Crescent, Bramcote, Nottingham, NG9 3BP |
| HINDLE, Nicola Ruth RESIGNED | Director | 14 Apr 2021 | 20 Dec 2023 | United Kingdom | April 1976 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| HOUGHTON, David Patrick RESIGNED | Director | 31 Mar 2003 | 16 Jun 2006 | | January 1954 | 55 Duncan Street, Sandringham, Victoria 3191, Australia |
| JOHNSTON, Keith RESIGNED | Director | 26 Feb 2014 | 09 Sep 2022 | Scotland | July 1959 | Synergy House, Windmill Avenue, Woolpit, Bury St. Edmunds, IP30 9UP, England |
| LAWRIE, James Stuart RESIGNED | Director | 21 Dec 1998 | 02 Aug 1999 | | January 1966 | Magpie Cottage Retford Road, Blyth, Worksop, Nottinghamshire, S81 8ER |
| MURRAY, Robert James Matthews RESIGNED | Director | 04 Jan 2006 | 31 Mar 2011 | England | June 1955 | 31 Conchar Road, Sutton Coldfield, Birmingham, West Midlands, B72 1LL |
| RICHARDS, Simon Leonard Christopher RESIGNED | Director | 20 Aug 2001 | 01 Mar 2002 | England | August 1964 | 15 Barnbrook Road, Knowle, Solihull, West Midlands, B93 9PW |
| SEDGWICK, Duncan Roy RESIGNED | Director | | 20 Oct 1992 | United Kingdom | November 1955 | 55 Lambourne Drive, Wollaton, Nottingham, Notts, NG8 1GR |
| SHAW, Neil Edward RESIGNED | Director | 25 Jan 2013 | 31 Dec 2013 | United Kingdom | April 1962 | Energy House, Woolpit Business Park, Woolpit, Bury St. Edmunds, Suffolk, IP31 9UP |
| TAYLOR, Robert RESIGNED | Director | 24 Oct 2001 | 31 Mar 2003 | | February 1961 | 8 Paddock Drive, Dorridge, Solihull, West Midlands, BR3 8BZ |
| WARD, Russell Adrian Edmund RESIGNED | Director | 31 Mar 2003 | 17 Dec 2012 | Wales | September 1963 | Belmont Lodge, Catsash Road Christchurch, Newport, NP18 1LB |
| WELLS, Derek Alan RESIGNED | Director | | 20 Oct 1992 | | July 1927 | Cordwainers Cottage Post Office Lane, Plungar, Leicestershire, NG13 0JL |
| POWERGEN SECRETARIES LIMITED RESIGNED | Director | 20 Oct 1992 | 19 Mar 1999 | | | City Point, 1 Ropemaker Street, London, EC2Y 9HT |
| POWERGEN SECRETARIES LIMITED RESIGNED | Director | 20 Oct 1992 | 19 Mar 1999 | | | 53 New Broad Street, London, EC2M 1SL |