| CENTRICA SECRETARIES LIMITED ACTIVE | Secretary | 09 Aug 2000 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| HODGES, Andrew William ACTIVE | Director | 30 Jun 2016 | | United Kingdom | June 1967 | 5th, Floor, Iq Building 15 Justice Mill Lane, Aberdeen, AB11 6EQ |
| CENTRICA DIRECTORS LIMITED ACTIVE | Director | 22 Dec 2006 | | | | Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD |
| GARRIHY, Anne RESIGNED | Secretary | 07 Jan 1998 | 09 Aug 2000 | | | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Secretary | 20 May 1997 | 07 Jan 1998 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |
| CARROLL, Nicola RESIGNED | Director | 12 Jul 2012 | 30 Jun 2016 | United Kingdom | December 1959 | 5th, Floor, Iq Building 15 Justice Mill Lane, Aberdeen, AB11 6EQ, United Kingdom |
| COLES, Pamela Mary RESIGNED | Director | 12 Nov 2009 | 29 Jul 2010 | United Kingdom | March 1961 | No.1 Waterfront Avenue, Edinburgh, EH5 1SG |
| DAWSON, Ian Grant RESIGNED | Director | 07 Jan 1998 | 31 Jan 2000 | | March 1959 | The West Wing Burfield Lodge, Burfield Road, Old Windsor, Berkshire, SL4 2LH |
| FRAZER, Robert RESIGNED | Director | 02 Nov 1998 | 17 Jan 2000 | | January 1942 | 7 Deer Park Way, West Wickham, Kent, BR4 9QQ |
| GARRIHY, Anne RESIGNED | Director | 07 Jan 1998 | 17 Jul 2001 | | June 1960 | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| LAIDLAW, Tom RESIGNED | Director | 05 Feb 2002 | 16 Dec 2005 | | November 1947 | 63 Muir Wood Crescent, Edinburgh, EH14 5HB |
| LEVEN, Steven RESIGNED | Director | 17 Jul 2001 | 22 Dec 2006 | England | March 1967 | 9 Oakleigh Drive, Croxley Green, Hertfordshire, WD3 3EE |
| MCKINLAY, Margaret Elizabeth RESIGNED | Director | 07 Jan 1998 | 02 Nov 1998 | | July 1951 | Flat 6 18 Royal Circus, Edinburgh, EH3 6SS |
| MOORE, Paul Anthony RESIGNED | Director | 12 Sep 2008 | 12 Nov 2009 | | July 1970 | 1 Holmlea Road, Datchet, Slough, Berkshire, SL3 9HG |
| NEEDHAM, James RESIGNED | Director | 16 Dec 2005 | 31 Aug 2007 | Scotland | July 1951 | Buchanan House, 1/5 East Suffolk Park, Edinburgh, Midlothian, EH16 5PL |
| NEEDHAM, James RESIGNED | Director | 17 Jan 2000 | 31 Jan 2002 | | July 1951 | 6 Zinnia Close, Wokingham, Berkshire, RG41 3ND |
| RITCHIE, Ian RESIGNED | Director | 31 Jan 2000 | 16 Dec 2005 | 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 | 5th, Floor, Iq Building 15 Justice Mill Lane, Aberdeen, AB11 6EQ, United Kingdom |
| COMBINED NOMINEES LIMITED RESIGNED | Nominee Director | 20 May 1997 | 07 Jan 1998 | | | Victoria House, 64 Paul Street, London, EC2A 4NA |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Director | 20 May 1997 | 07 Jan 1998 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |