| SWARATMIKA, Swaratmika ACTIVE | Secretary | 06 May 2025 | | | | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| THORN, Christopher Derrick ACTIVE | Director | 01 Feb 2020 | | England | April 1981 | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| COOPER, Elizabeth Jayne Clare RESIGNED | Secretary | 01 Jul 2001 | 31 Jul 2003 | | | 39 Church Road, Harlington, Bedfordshire, LU5 6LE |
| JONES, Graham Becket RESIGNED | Secretary | | 14 Sep 1999 | | | Hill House 1 Broomhills Road, West Mersea, Colchester, Essex, CO5 8AP |
| KNIGHT, Joan RESIGNED | Secretary | 31 Jul 2003 | 06 May 2025 | | | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| MURRAY, David Eugene RESIGNED | Secretary | 14 Sep 1999 | 01 Aug 2001 | | | 15 Boleyn Gardens, West Wickham, Kent, BR4 9NG |
| BRYAN, Frederick James RESIGNED | Director | | 10 Apr 1995 | | February 1951 | 40 Stoneleigh Park, Colchester, CO3 5FA |
| BURFORD, Colin Charles RESIGNED | Director | 20 Mar 1997 | 14 Sep 1999 | United Kingdom | September 1943 | Oak House, Wennington, Lancaster, LA2 8NX |
| CATLIN, Pierre RESIGNED | Director | 10 Apr 1995 | 08 Feb 2002 | | November 1949 | Clos Du Berfoje 17, Brussels, 1160, FOREIGN, Belgium |
| CHAPRON, Christophe Andre Bernard RESIGNED | Director | 19 Feb 2007 | 01 Mar 2016 | England | October 1964 | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| DUVAL, Florent Thierry Antoine RESIGNED | Director | 01 Feb 2016 | 31 Oct 2021 | England | February 1976 | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| GOODFELLOW, Ian Frederick RESIGNED | Director | 01 Aug 2001 | 31 May 2003 | England | January 1954 | Highlands Harewood Drive, Cold Ash, Thatcham, Berkshire, RG18 9PF |
| GORDON, Marek Robert RESIGNED | Director | 31 May 2003 | 31 Dec 2007 | England | February 1953 | 7 Woodbank Avenue, Gerrards Cross, Buckinghamshire, SL9 7PY |
| JACQMIN, Christian Jean RESIGNED | Director | | 31 Dec 1992 | | July 1949 | Clos, Des Cheneaux 14, Domaine Du Bercuit, Grez-Doiceau 1390, FOREIGN, Belgium |
| JONES, Graham Becket RESIGNED | Director | | 10 Oct 2000 | | February 1943 | Hill House 1 Broomhills Road, West Mersea, Colchester, Essex, CO5 8AP |
| MURRAY, David Eugene RESIGNED | Director | 16 Mar 2000 | 01 Nov 2001 | | September 1961 | 15 Boleyn Gardens, West Wickham, Kent, BR4 9NG |
| REYMANN, Jacques Andre RESIGNED | Director | | 26 Sep 1996 | | September 1937 | Rue De Montenegro 144, Brussels, B1060, Belgium |
| SEXTON, Ian Anthony RESIGNED | Director | 01 Oct 2001 | 19 Feb 2007 | United Kingdom | May 1956 | 31 Dedmere Road, Marlow, Buckinghamshire, SL7 1PE |
| TERLINDEN, Bernard Marie RESIGNED | Director | 10 Apr 1995 | 09 Jul 2001 | | May 1954 | Chaussee De Malines 19, Wezembeek Oppem, Belgium, 1970 |
| WHEATLEY, Robert James RESIGNED | Director | 10 Apr 1995 | 31 May 2002 | | August 1943 | 52 Eastworth Road, Chertsey, Surrey, KT16 8DP |