| WARBURTON, Jennifer Ann ACTIVE | Secretary | 22 Feb 2017 | | | | Booths Park, Chelford Road, Knutsford, WA16 8QZ, England |
| WARBURTON, Jennifer Ann ACTIVE | Director | 26 Aug 2016 | | United Kingdom | March 1969 | Booths Park, Chelford Road, Knutsford, Cheshire, WA16 8QZ, England |
| AMEC NOMINEES LIMITED ACTIVE | Director | 26 Aug 2016 | | | | Booths Park, Chelford Road, Knutsford, WA16 8QZ, England |
| DAVIES, Michelle Karen RESIGNED | Secretary | 01 Apr 2009 | 29 Nov 2011 | | | Shinfield Park, Shinfield, Reading, Berkshire, RG2 9FW |
| DENLEY, Mark Hilton RESIGNED | Secretary | 01 Dec 2011 | 01 Mar 2015 | | | Shinfield Park, Shinfield, Reading, Berkshire, RG2 9FW |
| MORRELL, Helen RESIGNED | Secretary | 02 Mar 2015 | 22 Feb 2017 | | | Booths Park, Chelford Road, Knutsford, Cheshire, WA16 8QZ, England |
| RIMER, Geoffrey John RESIGNED | Secretary | 28 Jun 1997 | 05 Jul 2008 | | | West End, Church Street, Stokenchurch, Buckinghamshire, HP14 3UJ |
| SHEPHERD, Ian RESIGNED | Secretary | | 12 Jul 1994 | | | The Green, Nateby, Kirkby Stephen, Cumbria, CA17 4JR |
| WATKIN, Wilfred RESIGNED | Secretary | 13 Jul 1994 | 27 Jun 1997 | | | Lanfield, Nateby, Kirkby Stephen, Cumbria, CA17 4JR |
| BATCHELOR, Keith Ernest RESIGNED | Director | 06 Jun 1995 | 31 Aug 2009 | England | August 1948 | Nuffield Court, Nuffield, Henley On Thames, Oxfordshire, RG9 5RU |
| COLLIS, Mark Russell RESIGNED | Director | 01 May 2013 | 26 Aug 2016 | United Kingdom | January 1972 | Booths Park, Chelford Road, Knutsford, Cheshire, WA16 8QZ, England |
| COPELAND, Clyde Carlton RESIGNED | Director | 25 Jan 1996 | 02 Jul 1997 | | March 1942 | New Lodge 30 Grenehurst Park, Capel, Dorking, Surrey, RH5 5GB |
| CULSHAW, Stephen Thomas RESIGNED | Director | 08 Sep 2009 | 31 Jul 2014 | United Kingdom | September 1960 | Shinfield Park, Shinfield, Reading, Berkshire, RG2 9FW |
| DUPAGNE, Laurent Jerome RESIGNED | Director | 01 Oct 2004 | 01 May 2013 | United Kingdom | October 1960 | Shinfield Park, Shinfield, Reading, Berkshire, RG2 9FW |
| EVANS, Timothy Martin RESIGNED | Director | | 26 Oct 1994 | United Kingdom | April 1935 | 8 Broadlands Close, Calcot Park, Reading, Berkshire, RG31 7RP |
| GANGRINALA, Huned Ahmedi RESIGNED | Director | 13 Jul 1992 | 25 Jan 1996 | | October 1953 | 21 Arbour Close, Fetcham, Leatherhead, Surrey, KT22 9DZ |
| HEWITT, Robert Beanland RESIGNED | Director | 22 Apr 1993 | 27 Jun 1997 | | January 1946 | 43 Chestnut Walk, Pulborough, West Sussex, RH20 1AN |
| KORNMEYER, Robin Allan RESIGNED | Director | 28 Jun 1997 | 31 Jan 2002 | | July 1948 | 4 Catawba Lane, Annandale, New Jersey, 08801, Usa |
| MAZZA, Thomas John RESIGNED | Director | 01 Feb 2002 | 31 Oct 2003 | | November 1953 | 1 Woodstock Lane, Annadale, New Jersey 08801, FOREIGN, United States Of America |
| PARDOE, Trevor Frank RESIGNED | Director | | 09 Jun 1993 | | July 1942 | 2125 Texis Ash Drive, Irving, Texas 75063, FOREIGN, Usa |
| RIMER, Geoffrey John RESIGNED | Director | 28 Jun 1997 | 05 Jul 2008 | | July 1943 | West End, Church Street, Stokenchurch, Buckinghamshire, HP14 3UJ |
| SHEPHERD, Ian RESIGNED | Director | | 27 Jun 1997 | | March 1944 | Rue De Provence, Chemin De La Terre Du Fabre, 13520 Maussane France, FOREIGN |
| SHORTEN, Nicholas David RESIGNED | Director | 24 Feb 2015 | 26 Aug 2016 | England | January 1968 | Booths Park, Chelford Road, Knutsford, Cheshire, WA16 8QZ, England |
| STAPLES, Trevor Bryan RESIGNED | Director | 24 Feb 2015 | 11 Apr 2016 | United Kingdom | March 1967 | Booths Park, Chelford Road, Knutsford, Cheshire, WA16 8QZ, England |
| THOMPSON, Jerry Lynn RESIGNED | Director | | 06 Jun 1995 | | January 1939 | 3838 Princess Lane, Dallas, Texas 75229, FOREIGN, Usa |
| THROUP, Graham RESIGNED | Director | | 15 Jun 1994 | | November 1946 | 8 Rue De La Petite Meuse 84000, Avignon, France, FOREIGN, France |
| WATKIN, Wilfred RESIGNED | Director | | 27 Jun 1997 | | July 1934 | Lanfield, Nateby, Kirkby Stephen, Cumbria, CA17 4JR |
| WEINSTEIN, Steven Ira RESIGNED | Director | 28 Jun 1997 | 30 Oct 2004 | | February 1946 | 10 Spring Lake Drive, Far Hills, New Jersey 07931, FOREIGN, United States Of America |
| WHITE, George Stephen RESIGNED | Director | 28 Jun 1997 | 01 Sep 1999 | | January 1936 | 20 Blue Cliff Drive, Lebanon, New Jersey, 08833, Usa |