| PARKER, Robert David ACTIVE | Director | 26 Feb 2024 | | United Kingdom | September 1974 | 2nd Floor, Suite 2a,Breakspear Park, Breakspear Way, Hemel Hempstead, HP2 4TZ, England |
| WEIR, Jennifer Jane Rosemary ACTIVE | Director | 11 Apr 2024 | | England | May 1969 | 2nd Floor, Suite 2a,Breakspear Park, Breakspear Way, Hemel Hempstead, HP2 4TZ, England |
| CLARK, David Henry RESIGNED | Secretary | 15 Oct 2005 | 01 Jan 2006 | | | 11 Westfield Close, Wimborne, Dorset, BH21 1ES |
| GRANT, Simon Robert RESIGNED | Secretary | 28 Oct 2016 | 12 Sep 2022 | | | Pilot Way, Ansty Business Park, Coventry, CV7 9JU, England |
| JACKSON, Katherine Anna RESIGNED | Secretary | 24 Aug 2004 | 14 Oct 2005 | | | 50 West Bay Road, Bridport, Dorset, DT6 3QQ |
| THOMAS, Marina Louise RESIGNED | Secretary | 01 Jan 2006 | 28 Oct 2016 | | | Atlantic House, Aviation Park, West, Bournemouth International, Airport, Christchurch, Dorset Bh236ew |
| WALKER, Steven Michael RESIGNED | Secretary | 01 Oct 1998 | 24 Aug 2004 | | | 8 Poppyfield Court, Gibbet Hill, Coventry, CV4 7HW |
| INVENSYS SECRETARIES LIMITED RESIGNED | Secretary | | 01 Oct 1998 | | | Invensys House, Carlisle Place, London, SW1P 1BX |
| 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 | | 26 May 1992 | | May 1942 | Spinners Avenue Road, Avenue Road, Cobham, Surrey, KT11 3HW |
| CLARK, David Henry RESIGNED | Director | 08 Oct 2004 | 31 May 2007 | | April 1944 | 11 Westfield Close, Wimborne, Dorset, BH21 1ES |
| ELLINOR, Graham Mark RESIGNED | Director | 12 Sep 2022 | 08 Mar 2024 | England | March 1964 | Pilot Way, Ansty Business Park, Coventry, CV7 9JU, England |
| ELSEY, James Alan David RESIGNED | Director | 12 Sep 2022 | 18 Dec 2024 | England | August 1970 | Pilot Way, Ansty Business Park, Coventry, CV7 9JU, England |
| 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 | | 26 May 1995 | | 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 |
| GREEN, Philip Ernest RESIGNED | Director | 24 Aug 2004 | 02 Dec 2013 | England | October 1956 | Atlantic House, Aviation Park, West, Bournemouth International, Airport, Christchurch, Dorset Bh236ew |
| HAMABERG, Robert Courtney RESIGNED | Director | 01 Oct 1998 | 08 Mar 2002 | | May 1948 | Box 2027, Beausejour, Manitoba, Roe 0l2, Canada |
| JACKSON, Alan Robert RESIGNED | Director | | 30 Mar 1996 | | March 1936 | 25 Evelyn Mansions, Carlisle Place, London, SW1 1NH |
| JOHNSON, David Graham RESIGNED | Director | 29 Sep 1998 | 24 Aug 2004 | England | September 1961 | 64 Alderbrook Road, Solihull, West Midlands, B91 1NR |
| LEWIS, Katie RESIGNED | Director | 01 Apr 2020 | 12 Sep 2022 | United Kingdom | September 1981 | Pilot Way, Ansty Business Park, Coventry, CV7 9JU, England |
| MORGAN, David Trevor RESIGNED | Director | 24 Aug 2004 | 31 Jul 2005 | | April 1950 | 197 Sopwith Crescent, Wimborne, Dorset, BH21 1SR |
| O'DONOVAN, Kathleen Anne RESIGNED | Director | 14 May 1992 | 01 Oct 1998 | United Kingdom | May 1957 | 3c Cintra Park, Upper Norwood, London, SE19 2LH |
| PARGETER, Ian Keith RESIGNED | Director | 02 Dec 2013 | 12 Sep 2022 | England | April 1965 | Pilot Way, Ansty Business Park, Coventry, CV7 9JU, England |
| SHARP, Edgar Earl RESIGNED | Director | | 20 May 1993 | | March 1933 | 27 Bank Street, New Canaan, Ct 06840, Usa |
| SHAW, David W RESIGNED | Director | 31 Dec 2001 | 24 Aug 2004 | | October 1957 | 55 Shoreline Drive, Winnipeg, Manitoba R3p 2j7, FOREIGN, Canada |
| SMITH, James David Michael RESIGNED | Director | | 06 Nov 1995 | | September 1939 | Meadowcroft, Sterlings Field, Cookham Dean, Berkshire, SL6 9PG |
| STEVENS, David John RESIGNED | Director | 24 Oct 1997 | 01 Oct 1998 | | March 1950 | 42 Burghley Road, Wimbledon, London, SW19 5HN |
| STRACHAN, Ian Charles RESIGNED | Director | 03 Jan 1996 | 01 Oct 1998 | United Kingdom | April 1943 | 30 Bloomfield Terrace, London, SW1W 8PQ |
| THOM, James Demmink RESIGNED | Director | 31 Jul 1996 | 01 Oct 1998 | | July 1946 | Tollgate Cottage, Turners Hill Road, Crawley Down, West Sussex, RH10 4HG |
| THOMAS, Marina Louise RESIGNED | Director | 02 Dec 2013 | 12 Sep 2022 | England | November 1976 | Pilot Way, Ansty Business Park, Coventry, CV7 9JU, England |
| UNRUH, David Ernie RESIGNED | Director | 29 Sep 1998 | 24 Aug 2004 | | September 1952 | 107 Eagle Creek Drive, East St Paul, Manitoba, R2e Ol2, Canada |
| WALKER, Steven Michael RESIGNED | Director | 01 Oct 1998 | 24 Aug 2004 | United Kingdom | July 1962 | 8 Poppyfield Court, Gibbet Hill, Coventry, CV4 7HW |
| WALTON-KNIGHT, Bernard Piet RESIGNED | Director | 29 Sep 1998 | 20 Jun 2003 | | September 1941 | 64 Egginton Road, Hilton, Derby, DE65 5FG |
| WHELAN, John Thomas RESIGNED | Director | 01 Oct 1998 | 24 Aug 2004 | | November 1949 | 17 Lyndon Close, Castle Bromwich, Birmingham, B36 0AJ |
| WILLIAMS, Stanley Killa RESIGNED | Director | | 31 Jul 1996 | England | July 1945 | White Raven, Park Lane, Ashtead, Surrey, KT21 1EU |
| YOUNG, Mark Lees RESIGNED | Director | 26 Jul 2006 | 02 Dec 2013 | England | October 1959 | Atlantic House, Aviation Park, West, Bournemouth International, Airport, Christchurch, Dorset Bh236ew |