| INVENSYS SECRETARIES LIMITED ACTIVE | Secretary | 15 Jul 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 |
| WILLIAMS, Stanley Killa RESIGNED | Secretary | | 15 Jul 1993 | | | White Raven, Park Lane, Ashtead, Surrey, KT21 1EU |
| AUSTEN, Patrick George RESIGNED | Director | 13 Aug 1991 | 22 Jan 1993 | | September 1943 | 14 Chantry View Road, Guildford, Surrey, GU1 3XR |
| BAYS, James Claude RESIGNED | Director | 02 Jul 1999 | 30 Mar 2001 | | July 1949 | 28 Elmstone Road, Fulham, London, SW6 5TN |
| BECKER, Kelly Jean RESIGNED | Director | 31 Dec 2020 | 02 Feb 2026 | United Kingdom | January 1978 | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| BEESTON, Robert Geoffrey RESIGNED | Director | 13 Aug 1991 | 31 Dec 1991 | United Kingdom | February 1942 | Battledown Manor, Greenway Lane, Charlton Kings, Cheltenham, Gloucestershire, GL52 6PN |
| BROWN, Robert Casson RESIGNED | Director | 25 Jan 1994 | 31 Dec 1997 | | March 1939 | 38 Newlands Avenue, Melton Park, Newcastle Upon Tyne, NE3 5PX |
| BULL, Christopher Robert Howard RESIGNED | Director | | 08 May 1993 | | May 1942 | Spinners Avenue Road, Avenue Road, Cobham, Surrey, KT11 3HW |
| BURNS, Christopher Robert, Dr RESIGNED | Director | 14 Feb 1995 | 31 Mar 1999 | | February 1943 | 66 Fairmile Lane, Doonside, Cobham, Surrey, KT11 2DE |
| BUYSSE, Paul Henri Maria RESIGNED | Director | 13 Aug 1991 | 05 Jan 1998 | | March 1945 | Pater Nuyenslaan 21, 2970 Schildes Gravenwezel 2332, Belgium |
| 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 |
| CROWTHER, Brian Edward RESIGNED | Director | 13 Aug 1991 | 12 Jul 2003 | | November 1948 | Moat Springs Barn Gorsty Hill, Marchington Woodlands, Uttoxeter, Staffordshire, ST14 8PQ |
| DAVIES, Huw Geraint, Dr RESIGNED | Director | 13 Aug 1991 | 31 May 1994 | | January 1941 | 35 Station Street, Yea 3717, Victoria 3717, FOREIGN, Australia |
| FAIRCLOTH, Robert Frederick William RESIGNED | Director | 13 Aug 1991 | 01 Jan 1995 | | September 1936 | 56 Partridge Run, PO BOX 410, New London, New Hampshire 03257, United States Of America |
| FULTON, James RESIGNED | Director | 13 Aug 1991 | 08 May 1993 | | November 1950 | 35 Mulberry Lane, Shelton, Connecticut, 06484, Usa |
| GREEN, Owen, Sir RESIGNED | Director | | 08 May 1994 | | May 1925 | Edgehill Succombs Hill, Warlingham, Surrey, CR6 9JG |
| GREEN, Owen, Sir RESIGNED | Director | | 20 May 1993 | | May 1925 | Edgehill Succombs Hill, Warlingham, Surrey, CR6 9JG |
| HUGHES, Michael Patrick RESIGNED | Director | 12 Sep 2017 | 31 Dec 2020 | England | June 1965 | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| HULL, Victoria Mary RESIGNED | Director | 01 Jan 2006 | 27 Jan 2014 | 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 | 27 Jan 2014 | 31 Mar 2022 | England | November 1963 | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| O'DONOVAN, Kathleen Anne RESIGNED | Director | 13 Aug 1991 | 31 Dec 2002 | United Kingdom | May 1957 | 3c Cintra Park, Upper Norwood, London, SE19 2LH |
| PEARSON, Graeme Charles RESIGNED | Director | 13 Aug 1991 | 30 Aug 1996 | | August 1939 | 836 Esplanade, Mornington, Victoria 3931, Australia |
| QUARTA, Roberto RESIGNED | Director | 13 Aug 1991 | 22 Oct 1993 | | May 1949 | 3 West Eaton Place, London, SW1X 8LU |
| RANDERY, Tanuja RESIGNED | Director | 01 Mar 2015 | 13 Sep 2017 | England | September 1966 | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| ROBINSON, Peter John RESIGNED | Director | 13 Aug 1991 | 30 Apr 1998 | | July 1943 | 20 Medley Place, South Yarra, Victoria, 3141, Australia |
| SAGE, Antoine Marie RESIGNED | Director | 15 Feb 2022 | 01 Apr 2025 | England | September 1982 | Schneider Electric, 80 Victoria Street, London, SW1E 5JL, England |
| SHARP, Edgar Earl RESIGNED | Director | | 20 May 1991 | | March 1933 | 27 Bank Street, New Canaan, Ct 06840, Usa |
| SMITH, James David Michael RESIGNED | Director | 13 Aug 1991 | 06 Nov 1995 | | September 1939 | Meadowcroft, Sterlings Field, Cookham Dean, Berkshire, SL6 9PG |
| SMITH, Kevin Charles RESIGNED | Director | 19 Jul 2010 | 31 Jul 2015 | United Kingdom | August 1959 | 2nd Floor, 80, Victoria Street, London, SW1E 5JL, England |
| STEVENS, David John RESIGNED | Director | 31 Dec 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 | 27 Jan 2014 | United Kingdom | May 1954 | 3rd Floor, 40, Grosvenor Place, London, SW1X 7AW |
| THOMPSON, John Samuel RESIGNED | Director | | 31 Jul 1999 | | October 1947 | 43 Woodcliffe Road, Wellesley Hills Massachusetts 02181, Usa |
| THOROGOOD, Stuart RESIGNED | Director | 27 Jan 2014 | 01 Mar 2015 | England | January 1958 | 3rd Floor, 40, Grosvenor Place, London, SW1X 7AW |
| WILLIAMS, Stanley Killa RESIGNED | Director | 08 Jun 1993 | 31 Jul 1996 | England | July 1945 | White Raven, Park Lane, Ashtead, Surrey, KT21 1EU |