| ATKINSON, Graham ACTIVE | Secretary | 15 Mar 2023 | | | | No. 1 Forbury Place, 43 Forbury Road, Reading, RG1 3JH, England |
| ANDERSON, Scott Keelor ACTIVE | Director | 20 Dec 2022 | | United Kingdom | June 1970 | Inveralmond House, 200 Dunkeld Road, Perth, PH1 3AQ, Scotland |
| BEATTIE, Martin ACTIVE | Director | 27 Nov 2025 | | Scotland | March 1981 | Grampian House, 200 Dunkeld Road, Perth, PH1 3GH, Scotland |
| SANDERS, Nathan ACTIVE | Director | 20 Dec 2022 | | England | March 1972 | No.1 Forbury Place, 43 Forbury Road, Reading, RG1 3JH, England |
| DAVIES, Michael Howard RESIGNED | Secretary | 07 Jan 2011 | 31 Dec 2014 | | | Scottish Power Ltd, 1 Atlantic Quay, Robertson Street, Glasgow, G2 8SP |
| DUFFIELD, Sheelagh Jane RESIGNED | Secretary | 31 Dec 1996 | 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 |
| MCPHERSON, Donald James RESIGNED | Secretary | 01 May 2003 | 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 |
| O'GORMAN, Seumus RESIGNED | Secretary | 31 Dec 2014 | 20 Dec 2022 | | | 3 Prenton Way, Prenton, CH43 3ET |
| ROSS, Marie Isobel RESIGNED | Secretary | 26 Oct 2007 | 07 Jan 2011 | | | 1, Atlantic Quay, Robertson St, Glasgow, G2 8SP |
| WILLIAMS, David Nicholas RESIGNED | Secretary | | 31 Dec 1996 | | | 1 The Copse Station Road, Rossett, Wrexham, Clwyd, LL12 0GD |
| ALCAIN, Daniel RESIGNED | Director | 11 Mar 2013 | 13 Jul 2016 | United Kingdom | June 1973 | 1, Atlantic Quay, Robertson Street, Glasgow, G2 8SP, Scotland |
| ASTALL, John RESIGNED | Director | | 31 Oct 1994 | | December 1950 | Marbury Cottage Bentleys Farm Lane, Higher Whitley, Warrington, Cheshire, WA4 4QW |
| BENNS, Robert Arthur RESIGNED | Director | 14 Aug 2006 | 31 Mar 2008 | United Kingdom | October 1968 | 36 Mossgiel Road, Newlands, Glasgow, G43 2DF |
| BERRY, Charles Andrew RESIGNED | Director | 16 Sep 1997 | 08 Sep 1999 | Scotland | April 1952 | 5 Grange Road, Bearsden, Glasgow, Lanarkshire, G61 3PL |
| COCHRANE, Keith Robertson RESIGNED | Director | 13 Jun 2005 | 30 Jun 2006 | | February 1965 | 15 Brompton Terrace, Perth, Perthshire, PH2 7DQ |
| DUFFIELD, Sheelagh Jane RESIGNED | Director | 03 May 2006 | 26 Oct 2007 | Scotland | May 1966 | 197 Queen Victoria Drive, Scotstounhill, Glasgow, G14 9BP |
| FENWICK, Trevor John RESIGNED | Director | 16 Jul 1997 | 28 Feb 1999 | United Kingdom | January 1954 | 55 Baronswood, Gosforth, Newcastle Upon Tyne, NE3 3UB |
| FERNANDEZ OLMEDO, Ramon RESIGNED | Director | 31 Mar 2008 | 11 Mar 2013 | United Kingdom | November 1966 | 1 Atlantic Quay, Robertson Street, Glasgow, G2 8SP |
| GREEN, Robert David RESIGNED | Director | 12 Oct 1995 | 16 Jul 1997 | | July 1955 | 10 Castlehill Crescent, Hamilton, Lanarkshire, ML3 7DG |
| KINSKI, Michael John RESIGNED | Director | 12 Oct 1995 | 16 Jul 1997 | United Kingdom | May 1952 | Cherry Tree House 268 Dunchurch Road, Rugby, Warwickshire, CV22 6HX |
| MATHIESON, Scott Hamilton RESIGNED | Director | 13 Jul 2016 | 20 Dec 2022 | Scotland | May 1972 | 3 Prenton Way, Prenton, CH43 3ET |
| MITCHELL, Andrew Ross RESIGNED | Director | 28 Sep 1999 | 30 Sep 2005 | | January 1952 | Highwood, Kilmacolm, Refrewshire, PA13 4TA |
| NISH, David Thomas RESIGNED | Director | 28 Sep 1999 | 25 May 2005 | Scotland | May 1960 | Kiloran, Houston Road, Kilmacolm, PA13 4NY |
| RICHARDSON, Alan Victor, Prof RESIGNED | Director | 16 Jul 1997 | 28 Sep 1999 | | June 1946 | Dyke Farm Cottage, Symington, Ayrshire, KA1 5PN |
| ROBERTS, John Edward RESIGNED | Director | | 12 Oct 1995 | | March 1946 | The Cottage Ganarew House, Ganarew, Monmouth, Gwent, NP25 3SS |
| ROSSI, Marc Domenico RESIGNED | Director | 05 May 2017 | 20 Dec 2022 | Scotland | October 1967 | 3 Prenton Way, Prenton, CH43 3ET |
| STANLEY, Rupert James RESIGNED | Director | 30 Sep 2005 | 03 May 2006 | Uk | July 1954 | New School Farm, 6 Station Road Tilbrook, Huntingdon, Cambridgeshire, PE28 0JT |
| STEWART, Stephen Alexander RESIGNED | Director | 13 Jul 2016 | 10 Jun 2020 | Scotland | May 1965 | 3 Prenton Way, Prenton, CH43 3ET |
| VENMAN, Marion RESIGNED | Director | 26 Oct 2007 | 13 Jul 2016 | Scotland | April 1968 | 1, Atlantic Quay, Robertson Street, Glasgow, G2 8SP |
| VERNON-SMITH, David Alexander RESIGNED | Director | 30 Oct 1994 | 12 Oct 1995 | | June 1944 | Alder House, Prestbury Road, Wilmslow, Cheshire, SK9 2LJ |
| WESTON, Bryan Henry RESIGNED | Director | | 15 Oct 1992 | | April 1930 | Fountainhead Cottage, Brassey Green, Tarporley, Cheshire, CW6 9UG |
| WILLIAMS, David Nicholas RESIGNED | Director | 15 Oct 1992 | 17 Jun 1993 | | February 1943 | 9 Victoria Pathway, Queens Park, Chester, Cheshire, CH4 7AG |