| JENKINS, Cathrine Anne ACTIVE | Secretary | 01 Jan 2017 | | | | Dow Corning Limited, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL, Wales |
| DOPP, Steven Fred ACTIVE | Director | 12 Oct 2011 | | United States | November 1973 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| EVANS, Karl David ACTIVE | Director | 30 Jun 2026 | | Wales | December 1967 | Dow Silicones Uk Limited, Cardiff Road, Barry, CF63 2YL, Wales |
| HALL, William ACTIVE | Director | 01 Jun 2026 | | Wales | September 1986 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| SPINDLER, Mona ACTIVE | Director | 31 Aug 2023 | | Switzerland | August 1982 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| BEDFORD, Judith Lynn RESIGNED | Secretary | 17 Jan 1996 | 22 Apr 1999 | | | Flat 5 168 Cathedral Road, Cardiff, South Glamorgan, CF1 9JD |
| BHAKTIVEDANT, Gurcul Klaus Reimund, Professor RESIGNED | Secretary | 19 Jul 1990 | 19 Jul 1990 | | | 226 Wentworth Road, Southall, Middlesex, UB2 5TY |
| COLE, Jill Marguerite RESIGNED | Secretary | 31 Mar 2006 | 07 Jul 2010 | | | Sunfold, Lisvane Road Lisvane, Cardiff, South Glamorgan, CF14 0SG |
| DORE, Sara Jean RESIGNED | Secretary | 01 Sep 2013 | 28 Feb 2015 | | | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| MCCULLOCH, Helen Elizabeth RESIGNED | Secretary | 28 Feb 2015 | 31 Dec 2016 | | | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| PALUMBO, Karen Alice RESIGNED | Secretary | 07 Jul 2010 | 31 Aug 2013 | | | 48, Cae Canol, Penarth, South Glamorgan, CF64 3RL, United Kingdom |
| ROCHFORD, Edward Arthur RESIGNED | Secretary | 22 Apr 1999 | 31 Mar 2006 | | | White House, Bettws Newydd, Usk, Monmouthshire, NP15 1JN |
| VAN DER VEEN, Marc Xavier RESIGNED | Secretary | | 17 Jan 1996 | | | Rue Des Saules, 54 Bte 01, Ohain, 1380, Belgium |
| ANSTEAD, Paul Ernest RESIGNED | Director | 04 Jul 2019 | 30 Sep 2023 | Wales | October 1967 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| AUSTIN, Haydn Brian RESIGNED | Director | 25 Oct 2012 | 01 Jun 2015 | Wales | February 1959 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| BEDFORD, Judith Lynn RESIGNED | Director | 17 Jan 1996 | 22 Apr 1999 | | October 1955 | Flat 5 168 Cathedral Road, Cardiff, South Glamorgan, CF1 9JD |
| BERRY-SOLOMON, Pamela RESIGNED | Director | 31 Mar 2021 | 01 Sep 2023 | United States | July 1972 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| BHAKTIVEDANT, Gurcul Klaus Reimund, Professor RESIGNED | Director | 19 Jul 1990 | 19 Jul 1990 | | November 1977 | 226 Wentworth Road, Southall, Middlesex, UB2 5TY |
| BOWYER, Christopher John RESIGNED | Director | 02 Apr 2001 | 31 Dec 2007 | | October 1946 | 2354 Cooper Creek Dr Bay City, Michigan, 48706, Usa |
| BRIGGS, Michael Fisher RESIGNED | Director | 19 Jul 1995 | 01 Jun 1998 | | December 1954 | White House The Paddock, Aberthin Road, Cowbridge, South Glamorgan, CF7 7EJ |
| BROOKES, David RESIGNED | Director | 12 Apr 2016 | 04 Jul 2019 | United Kingdom | August 1970 | Dow Corning Limited, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL, Wales |
| CARTWRIGHT, Peter Stewart RESIGNED | Director | 06 Mar 2002 | 31 Dec 2016 | United Kingdom | December 1962 | Barry Plant, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL |
| CASE, John Edward RESIGNED | Director | 01 Apr 2019 | 30 Jun 2026 | United Kingdom | February 1976 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| COLE, Jill Marguerite RESIGNED | Director | 31 Mar 2006 | 07 Jul 2010 | | January 1968 | Sunfold, Lisvane Road Lisvane, Cardiff, South Glamorgan, CF14 0SG |
| DAVIES, Hywel RESIGNED | Director | 03 Sep 2008 | 03 Dec 2013 | | June 1968 | Barry Plant, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL |
| DORE, Sara Jean RESIGNED | Director | 01 Sep 2013 | 28 Feb 2015 | Wales | June 1982 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| GADEA, Eduardo Antonio RESIGNED | Director | 02 Oct 2017 | 31 Mar 2021 | United Kingdom | November 1961 | Barry Plant, Dow Corning Limited, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL, Wales |
| GOLSONG, Dominique RESIGNED | Director | 14 Jun 1996 | 14 Sep 2004 | | September 1955 | Avenue De La Couronne 131, Brussels 1050, Belgium, FOREIGN |
| GOOD, Jonathan William RESIGNED | Director | 01 Jan 2017 | 30 Apr 2018 | England | July 1960 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| HABERER, Siegfried RESIGNED | Director | 14 Jun 1993 | 14 Jun 1996 | | March 1943 | Chemin Des Messes 42, 1380 Ohain, B1380, Belgium |
| HAINES, David Barton RESIGNED | Director | 14 Jun 1996 | 31 Oct 2000 | Wales | May 1940 | Witchwood, Twyncyn, Dinas Powys, South Glamorgan, CF64 4AS |
| HANSEN, Robert D RESIGNED | Director | 16 Sep 2002 | 09 Aug 2005 | | August 1960 | 5 Avenue General Dubois, Lasne, 1380, Belgium |
| HAZLETON, Richard A RESIGNED | Director | | 01 Jun 1998 | | November 1942 | 2200 W Salzburg Road, Midland, Mi 48686-0994, Usa |
| JOACHIM, Alain Felix RESIGNED | Director | | 14 Jun 1996 | | June 1938 | 64 Rue De La Concorde, B-1050 Brussels, FOREIGN, Belgium |
| JONES, Andrew Michael RESIGNED | Director | 01 Jan 2017 | 01 Apr 2019 | England | September 1966 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| KAPP, Michael Scott RESIGNED | Director | 03 Sep 2008 | 31 Mar 2010 | | May 1955 | 1912 Dilloway Drive, Midland, 48640 Michigan, Usa |
| KAUFMAN, Kenneth Paul RESIGNED | Director | 26 May 2011 | 31 Jul 2016 | Usa | March 1955 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| KRASA, Robert RESIGNED | Director | 22 Apr 1999 | 28 Feb 2001 | | December 1946 | 2112 Terra Drive, Midland 48640, Michigan Usa, FOREIGN |
| LANEY, Andrew Robert RESIGNED | Director | 01 Sep 2023 | 01 Jun 2026 | Wales | January 1985 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| LEECH, Joseph, Doctor RESIGNED | Director | 06 Mar 2002 | 24 Apr 2006 | | February 1953 | Clos Du General Domon 6, Lasne, 1380, Belgium |
| MADDOX, Jack Edward RESIGNED | Director | 24 Apr 2006 | 03 Sep 2008 | | October 1954 | 457 East Mier Road, Sandford, Michigan, 48657, Usa |
| MARCINIAK, Jere David RESIGNED | Director | 01 Jun 1998 | 22 Apr 1999 | | May 1947 | Avenue Des Champs 8, Braine L`Alleud, B 1420, Belgium |
| MATTHEWS, Margaret Ellen RESIGNED | Director | 05 Jul 2004 | 30 Apr 2016 | Wales | June 1960 | Barry Plant, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL |
| MCCULLOCH, Helen Elizabeth RESIGNED | Director | 28 Feb 2015 | 31 Dec 2016 | United Kingdom | February 1964 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| MCINALLY, Linda Jane RESIGNED | Director | 03 Sep 2008 | 31 Aug 2011 | | February 1957 | 708 Madelene Drive, Midland, 48640 Michigan, Usa |
| MIRENA DIAZ DE MENDIVIL HERNANDO, Kepa RESIGNED | Director | 01 Jan 2017 | 02 Oct 2017 | Wales | July 1962 | Dow Corning Limited, Cardiff Road, Barry, Vale Of Glamorgan, CF63 2YL, Wales |
| OTT, David Henry RESIGNED | Director | 02 Jul 2009 | 25 Oct 2012 | United Kingdom | November 1965 | 100, Lavernock Road, Penarth, South Glamorgan, CF64 3RN |
| PALUMBO, Karen Alice RESIGNED | Director | 27 May 2010 | 31 Aug 2013 | United Kingdom | March 1977 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| PITCHER, Robin Charles RESIGNED | Director | | 06 Mar 2002 | United Kingdom | October 1946 | 33 Windyridge, Dinas Powys, South Glamorgan, CF64 4AW |
| PRATT, Doug RESIGNED | Director | 01 Jun 1998 | 01 May 2001 | | October 1949 | 35 Porth Y Castell, Barry, South Glamorgan, CF62 6QB |
| REED, Lawrence A RESIGNED | Director | | 14 Jun 1993 | | October 1939 | 1227 W Sugnet, Midland, Michigan 48640, FOREIGN, Usa |
| ROCHFORD, Edward Arthur RESIGNED | Director | 25 Mar 2004 | 31 Mar 2006 | | December 1946 | White House, Bettws Newydd, Usk, Monmouthshire, NP15 1JN |
| ROCHFORD, Edward Arthur RESIGNED | Director | 22 Apr 1999 | 22 Apr 1999 | | December 1946 | White House, Bettws Newydd, Usk, Monmouthshire, NP15 1JN |
| ROSS, Iain Glassford RESIGNED | Director | 02 Apr 1992 | 14 Jun 1996 | | August 1931 | Rathlin, Cae Castell, Llanblethian, Cowbridge, Vale Of Glamorgan, CF71 7JN |
| ROYEZ, Alexandre RESIGNED | Director | 14 Jun 1996 | 22 Apr 1999 | | February 1945 | 14 Avenue Del Pirere, Dion-Valmont, 1325, Belgium |
| SANDERSON, James Leroy RESIGNED | Director | 07 Jun 2001 | 06 Mar 2002 | | May 1951 | 2104 Springwood, Midland Mi., 48640, Usa |
| SPARROW, Bridget RESIGNED | Director | 28 Feb 2015 | 31 Dec 2016 | Usa | October 1963 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| STEINHOFF, Edward RESIGNED | Director | | 19 Jul 1995 | | April 1934 | 4608 Moorland Drive, Midland, Michigan 48640, FOREIGN, Usa |
| STRANGE, W Terry RESIGNED | Director | 18 Jan 2001 | 05 Jul 2004 | | January 1950 | Penarth Head House, 5 Penarth Head Lane, Penarth, Vale Of Glamorgan, CF64 1BB |
| SULMON, Bruno RESIGNED | Director | 09 Aug 2005 | 31 Jul 2007 | | January 1946 | Rue Du Four A Verre Bar 10, Froidchapelle, 6440, Belgium |
| TESSIN, Brian Barry RESIGNED | Director | 27 May 2010 | 29 Aug 2016 | Usa | January 1970 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| TOMETICH, Andrew Eugene RESIGNED | Director | 03 Sep 2008 | 27 May 2010 | | October 1966 | 45487 Irvine Drive, Novi, 48374 Michigan, Usa |
| VAN DER VEEN, Marc Xavier RESIGNED | Director | | 17 Jan 1996 | | March 1959 | Rue Des Saules, 54 Bte 01, Ohain, 1380, Belgium |
| VAN POORTEN, Gino Eduardus Angela RESIGNED | Director | 30 Apr 2018 | 31 Aug 2023 | Netherlands | February 1973 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| WHITFIELD, Neville Joseph RESIGNED | Director | 22 Apr 1999 | 31 Mar 2001 | | February 1944 | 8 Ave Des Champs, Braine L'Alleud 1420, Belgium, FOREIGN |
| WHITLOCK, James Russell RESIGNED | Director | 03 Sep 2008 | 26 May 2011 | | May 1964 | 7 Sawmill Creek Trail, Saginaw, 48603 Michigan, Usa |
| WILSON, Ian Robert RESIGNED | Director | 27 May 2010 | 28 Feb 2015 | United States | August 1961 | Barry Plant, Cardiff Road, Barry, Glamorgan, CF63 2YL |
| WORSLEY, Marcus Arnold RESIGNED | Director | 14 Jun 1996 | 22 Apr 1999 | | August 1952 | Dreve Des Chevreuils 23, Rhode St Genese, 1640, Belgium |