| INVENSYS SECRETARIES LIMITED ACTIVE | Secretary | 25 Feb 1993 | | | | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| HALL, David Anthony ACTIVE | Director | 02 Feb 2026 | | England | December 1967 | 2nd Floor, 80 Victoria Street, London, SW1E 5JL, England |
| WHITAKER, Jacqueline Yvette ACTIVE | Director | 01 Apr 2025 | | United Kingdom | November 1985 | 2nd Floor, 80 Victoria Street, London, SW1E 5JL, England |
| BAYS, James Claude RESIGNED | Director | 02 Jul 1999 | 30 Mar 2001 | | July 1949 | 28 Elmstone Road, Fulham, London, SW6 5TN |
| BROWN, Robert Casson RESIGNED | Director | 25 Jan 1994 | 31 Dec 1997 | | March 1939 | 38 Newlands Avenue, Melton Park, Newcastle Upon Tyne, NE3 5PX |
| BURNS, Christopher Robert, Dr RESIGNED | Director | 14 Feb 1995 | 31 Mar 1999 | | February 1943 | 66 Fairmile Lane, Doonside, Cobham, Surrey, KT11 2DE |
| CLAYTON, John Reginald William RESIGNED | Director | 09 Feb 2001 | 31 Dec 2005 | England | December 1950 | Matley House, Grange Lane, Little Dunmow, Great Dunmow, Essex, CM6 3HY |
| COCHRANE, Adam Craven RESIGNED | Director | 01 May 2001 | 31 Jan 2003 | | July 1957 | 41 Highfield Drive, Uxbridge, Middlesex, UB10 8AW |
| FAIRCLOTH, Robert Frederick William RESIGNED | Director | | 01 Jan 1995 | | September 1936 | 56 Partridge Run, PO BOX 410, New London, New Hampshire 03257, United States Of America |
| GREEN, Owen, Sir RESIGNED | Director | | 20 May 1993 | | May 1925 | Edgehill Succombs Hill, Warlingham, Surrey, CR6 9JG |
| HULL, Victoria Mary RESIGNED | Director | 01 Jan 2006 | 07 Dec 2011 | United Kingdom | March 1962 | 3rd Floor, 40, Grosvenor Place, London, SW1X 7AW |
| JACKSON, Alan Robert RESIGNED | Director | | 30 Mar 1996 | | March 1936 | 25 Evelyn Mansions, Carlisle Place, London, SW1 1NH |
| LAMBETH, Trevor RESIGNED | Director | 31 Jul 2015 | 31 Mar 2022 | England | November 1963 | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| LAMBETH, Trevor RESIGNED | Director | 31 Dec 2014 | 31 Jul 2015 | England | November 1963 | 2nd Floor, 80, Victoria Street, London, SW1E 5JL, England |
| O'DONOVAN, Kathleen Anne RESIGNED | Director | | 31 Dec 2002 | United Kingdom | May 1957 | 3c Cintra Park, Upper Norwood, London, SE19 2LH |
| SAGE, Antoine Marie RESIGNED | Director | 15 Feb 2022 | 01 Apr 2025 | England | September 1982 | Schneider Electric, 80 Victoria Street, London, SW1E 5JL, England |
| SMITH, Kevin Charles RESIGNED | Director | 31 Jan 2009 | 31 Jul 2015 | United Kingdom | August 1959 | 2nd Floor, 80, Victoria Street, London, SW1E 5JL, England |
| SPENCER, Rachel Louise RESIGNED | Director | 01 May 2012 | 31 Dec 2014 | United Kingdom | February 1966 | 3rd Floor, 40, Grosvenor Place, London, SW1X 7AW |
| STEVENS, David John RESIGNED | Director | 24 Oct 1997 | 14 May 1999 | | March 1950 | 42 Burghley Road, Wimbledon, London, SW19 5HN |
| STRACHAN, Ian Charles RESIGNED | Director | 03 Jan 1996 | 31 Mar 2000 | United Kingdom | April 1943 | 30 Bloomfield Terrace, London, SW1W 8PQ |
| THOM, James Demmink RESIGNED | Director | 31 Jul 1996 | 09 Feb 2001 | | July 1946 | Tollgate Cottage, Turners Hill Road, Crawley Down, West Sussex, RH10 4HG |
| THOMAS, David Jeremy RESIGNED | Director | 01 Apr 2003 | 02 Mar 2009 | United Kingdom | May 1954 | 11 Coutts Crescent, 13-23 St Albans Road, London, NW5 1RF |
| WILLIAMS, Stanley Killa RESIGNED | Director | 21 Apr 1993 | 31 Jul 1996 | | July 1945 | Silvertown House, Vincent Square, London, SW1P 2PL |