| CENTRICA SECRETARIES LIMITED ACTIVE | Secretary | 09 Aug 2000 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CARROLL, Nicola Margaret ACTIVE | Director | 12 Jul 2012 | | United Kingdom | December 1959 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| CENTRICA DIRECTORS LIMITED ACTIVE | Director | 01 Nov 2001 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| ALLEN, Tracy Lorraine RESIGNED | Secretary | 22 Feb 1999 | 09 Aug 2000 | | | 62 Hazel Close, Whitton, Twickenham, Middlesex, TW2 7NR |
| FELTON, Elizabeth Jayne RESIGNED | Secretary | 30 Jan 1997 | 01 Oct 1997 | | | 25 Merlin Clove, Winkfield Row, Bracknell, Berkshire, RG42 7TD |
| FURMSTON, Teresa Jane RESIGNED | Secretary | 01 Oct 1997 | 22 Feb 1999 | | | 12 Hinchley Close, Esher, Surrey, KT10 0BY |
| GARRIHY, Anne RESIGNED | Secretary | 23 Oct 1996 | 30 Jan 1997 | | | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| SMITH, Marie RESIGNED | Secretary | 24 Jul 1996 | 23 Oct 1996 | | | 10 Hatch Place, Kingston Upon Thames, Surrey, KT2 5NB |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Secretary | 24 Jul 1996 | 24 Jul 1996 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |
| ALLEN, Tracy Lorraine RESIGNED | Director | 26 Jul 1999 | 01 Nov 2001 | | December 1966 | 62 Hazel Close, Whitton, Twickenham, Middlesex, TW2 7NR |
| COLES, Pamela Mary RESIGNED | Director | 12 Nov 2009 | 29 Jul 2010 | United Kingdom | March 1961 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| DAWSON, Ian Grant RESIGNED | Director | 30 Jan 1997 | 31 Jan 2000 | | March 1959 | The West Wing Burfield Lodge, Burfield Road, Old Windsor, Berkshire, SL4 2LH |
| FURMSTON, Teresa Jane RESIGNED | Director | 30 Jan 1997 | 22 Feb 1999 | | May 1967 | 12 Hinchley Close, Esher, Surrey, KT10 0BY |
| GARRIHY, Anne RESIGNED | Director | 24 Jul 1996 | 13 Jul 2001 | | June 1960 | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| LEVEN, Steven RESIGNED | Director | 13 Jul 2001 | 01 Nov 2001 | England | March 1967 | 9 Oakleigh Drive, Croxley Green, Hertfordshire, WD3 3EE |
| MOORE, Paul Anthony RESIGNED | Director | 12 Sep 2008 | 12 Nov 2009 | | July 1970 | 1 Holmlea Road, Datchet, Slough, Berkshire, SL3 9HG |
| PATIENCE, Donald William John RESIGNED | Director | 24 Jul 1996 | 30 Jan 1997 | | January 1945 | Burnside Little Ann, Abbotts Ann, Andover, Hampshire, SP11 7NW |
| RITCHIE, Ian RESIGNED | Director | 31 Jan 2000 | 01 Nov 2001 | United Kingdom | May 1952 | 66 Cherwell Drive, Marston, Oxford, Oxfordshire, OX3 0LZ |
| THOMAS, Luke RESIGNED | Director | 29 Jul 2010 | 12 Jul 2012 | United Kingdom | June 1966 | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| COMBINED NOMINEES LIMITED RESIGNED | Nominee Director | 24 Jul 1996 | 24 Jul 1996 | | | Victoria House, 64 Paul Street, London, EC2A 4NA |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Director | 24 Jul 1996 | 24 Jul 1996 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |