| THOMPSON, Mark Hedley ACTIVE | Secretary | 05 Jan 2009 | | | | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| SCANLON, John James, Mr. ACTIVE | Director | 01 Jan 2020 | | England | November 1969 | 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 |
| HEMMINGS, Samuel RESIGNED | Secretary | | 01 Jan 1992 | | | Wychelm, 11a Stoke Hill Stoke Bishop, Bristol, Avon, BS9 1JL |
| MCKENNA-MAYES, Graham Arthur RESIGNED | Secretary | 05 Jul 2006 | 05 Jan 2009 | | | 38 Bremer Road, Staines, Middlesex, TW18 4HU |
| NICHOLS, Olive Mary RESIGNED | Secretary | 01 Jan 1992 | 05 Jul 2006 | | | 12 Clyde Park, Bristol, Avon, BS6 6RS |
| SWARATMIKA, Swaratmika RESIGNED | Secretary | 06 May 2025 | 05 Sep 2025 | | | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| BRADSHAW, Philip Gabriel RESIGNED | Director | | 05 Jul 2006 | | March 1935 | 3 Briercliffe Road, Bristol, Avon, BS9 2DB |
| CHAPRON, Christophe Andre Bernard RESIGNED | Director | 19 Feb 2007 | 29 Feb 2016 | England | October 1964 | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| COOMBS, Nigel James RESIGNED | Director | 01 Jan 1992 | 31 Oct 2000 | | November 1944 | Dutch Road Farm Dutch Road, Mark, Highbridge, Somerset, TA9 4QR |
| DUVAL, Florent Thierry Antoine RESIGNED | Director | 01 Feb 2016 | 31 Oct 2021 | England | February 1976 | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| HAIGH, Peter Joseph RESIGNED | Director | 27 Nov 1991 | 05 Jul 2006 | England | September 1953 | The Clock House, East Harptree, Bristol, BS40 6BD |
| HEMMINGS, Diana Christine RESIGNED | Director | 29 Jul 1998 | 05 Jul 2006 | | May 1944 | 21 Queens Gate, Stoke Bishop, Bristol, BS9 1TZ |
| HEMMINGS, Olive Mabel RESIGNED | Director | | 13 Oct 2004 | | December 1910 | 12 Clyde Park, Redland, Bristol, BS6 6RS |
| HEMMINGS, Samuel RESIGNED | Director | | 05 Jul 2006 | England | September 1943 | Birch House 21 Queens Gate, Stoke Bishop, Bristol, BS9 1TZ |
| HEMMINGS, Samuel RESIGNED | Director | | 16 Jul 1993 | | March 1910 | Yew Trees, 26 Cleeve Lawns Downend, Bristol, Avon |
| HJORT, Per-Anders RESIGNED | Director | 05 Jul 2006 | 01 Oct 2008 | | December 1958 | Flat 76, 21 Sheldon Square, Paddington London, W2 6DS |
| NICHOLS, Olive Mary RESIGNED | Director | | 05 Jul 2006 | | February 1947 | 12 Clyde Park, Bristol, Avon, BS6 6RS |
| PALMER-JONES, David Courtenay RESIGNED | Director | 01 Oct 2008 | 01 Jan 2020 | United Kingdom | April 1963 | Suez House, Grenfell Road, Maidenhead, Berkshire, SL6 1ES, England |
| SANDY, Nigel Desmond Alexander RESIGNED | Director | 22 Jul 2005 | 05 Jul 2006 | England | August 1944 | 3 Collett Way, Frome, Somerset, BA11 2XN |
| SEXTON, Ian Anthony RESIGNED | Director | 05 Jul 2006 | 19 Feb 2007 | United Kingdom | May 1956 | 31 Dedmere Road, Marlow, Buckinghamshire, SL7 1PE |
| THOMAS, Peter Charles RESIGNED | Director | 22 Nov 2000 | 13 Dec 2005 | England | November 1963 | 42 Southdown Road, Weatbury On Tyrm, Bristol, Avon, BS9 3NL |
| WILSON, Nick RESIGNED | Director | 22 Feb 2006 | 05 Jul 2006 | England | June 1971 | 7 Trelawney Road, Bristol, Avon, BS6 6DX |