| DAVIES, Michael Howard ACTIVE | Secretary | 29 Feb 2012 | | | | Scottish Power Ltd, 1 Atlantic Quay, Robertson Street, Glasgow, G2 8SP, Scotland |
| CONNELLY, Nicola Mary ACTIVE | Director | 30 Apr 2009 | | Scotland | September 1970 | 1, Atlantic Quay, Robertson St, Glasgow, G2 8SP |
| SUTHERLAND, James ACTIVE | Director | 17 Jan 2006 | | United Kingdom | August 1966 | 1, Atlantic Quay, Robertson St, Glasgow, G2 8SP |
| DUFFIELD, Sheelagh Jane RESIGNED | Secretary | 26 Feb 1997 | 30 Sep 1999 | | | 32 Highburgh Road, Dowanhill, Glasgow, G12 9EF |
| GREGG, Rhona RESIGNED | Secretary | 30 Jun 2006 | 26 Oct 2007 | | | 25 Lammermuir Wynd, Larkhall, Lanarkshire, ML9 1UT |
| MCCULLOCH, Alan William RESIGNED | Secretary | 01 May 2003 | 30 Sep 2005 | | | 4 Dumbrock Road, Strathblane, Glasgow, G63 9EF |
| MCPHERSON, Donald James RESIGNED | Secretary | 30 Sep 2005 | 30 Jun 2006 | | | 14 Braid Drive, Cardross, Dumbarton, Dunbartonshire, G82 5QD |
| MITCHELL, Andrew Ross RESIGNED | Secretary | 30 Sep 1999 | 01 May 2003 | | | Highwood, Kilmacolm, Refrewshire, PA13 4TA |
| REID, Janet Dorothy RESIGNED | Secretary | 07 Jan 2011 | 29 Feb 2012 | | | 1 Atlantic Quay, Robertson Street, Glasgow, G2 8SP, Scotland |
| ROSS, Marie Isobel RESIGNED | Secretary | 26 Oct 2007 | 07 Jan 2011 | | | 1, Atlantic Quay, Robertson St, Glasgow, G2 8SP |
| DALGLEN SECRETARIES LIMITED RESIGNED | Nominee Secretary | 27 Dec 1996 | 26 Feb 1997 | | | Dalmore House, 310 St Vincent Street, Glasgow, Strathclyde, G2 5QR |
| BERRY, Charles Andrew RESIGNED | Director | 28 Sep 1999 | 31 Mar 2003 | Scotland | April 1952 | 5 Grange Road, Bearsden, Glasgow, Lanarkshire, G61 3PL |
| HILL, David John RESIGNED | Director | 27 Feb 2006 | 30 Apr 2009 | | May 1953 | 4 Byron Court, Bothwell, G71 8TW |
| MENZIES, John Ivor Gibbons RESIGNED | Director | 24 Jun 2002 | 31 Mar 2003 | | March 1944 | Turnlaw Farm, 3 Lomond View, Cambuslang, Glasgow, G67 4JR |
| MERCER, Ronnie Edward RESIGNED | Director | 24 Jun 2002 | 10 Jan 2005 | Great Britain | March 1944 | The Homestead, Hazelmere Road, Kilmacolm, Renfrewshire, PA13 4ED |
| NISH, David Thomas RESIGNED | Director | 10 Jan 2005 | 06 Sep 2005 | Scotland | May 1960 | Kiloran, Houston Road, Kilmacolm, PA13 4NY |
| NISH, David Thomas RESIGNED | Director | 01 Apr 2002 | 24 Jun 2002 | Scotland | May 1960 | Kiloran, Houston Road, Kilmacolm, PA13 4NY |
| RICHARDSON, Alan Victor, Prof RESIGNED | Director | 26 Feb 1997 | 28 Sep 1999 | | June 1946 | Dyke Farm Cottage, Symington, Ayrshire, KA1 5PN |
| RUTHERFORD, David RESIGNED | Director | 01 Apr 2003 | 17 Jan 2006 | Scotland | June 1963 | 9 Ashburnham Loan, South Queensferry, Edinburgh, EH30 9LE |
| VOWLES, Kenneth Leslie, Professor RESIGNED | Director | 28 Sep 1999 | 31 Mar 2002 | United Kingdom | March 1942 | Coppice Gate,, Plealey Contesbury, Shrewsbury, SY5 0UY |
| WHYTE, Duncan RESIGNED | Director | 26 Feb 1997 | 31 May 1999 | United Kingdom | July 1946 | 4 Victoria Crescent, Kilsyth, Lanarkshire, G65 9BJ |
| WOOD, Stephen Alan RESIGNED | Director | 01 Apr 2003 | 27 Feb 2006 | | December 1949 | West Priestgill House, Strathaven, ML10 6RB |
| DALGLEN DIRECTORS LIMITED RESIGNED | Nominee Director | 27 Dec 1996 | 26 Feb 1997 | | | Dalmore House, 310 St Vincent Street, Glasgow, Strathclyde, G2 5QR |