The '''International Society for Structural and Multidisciplinary Optimization''' is a [[learned society]] in the field of [[multidisciplinary design optimization]] that was founded in October 1991. It has more than 1000 members in 45 countries.<ref name="about">{{cite web|author=|url=http://www.issmo.net/about/welcome.asp|title=About ISSMO|publisher=International Society for Structural and Multidisciplinary Optimization|date=|accessdate=2013-06-11|archive-url=https://archive.is/20130620204222/http://www.issmo.net/about/welcome.asp|archive-date=2013-06-20|dead-url=yes|df=}}</ref> The current president is [[Ole Sigmund]] ([[Technical University of Denmark]]).<ref>{{cite web|author=|url=http://www.issmo.net/about/committee.asp|title=Executive Committee|publisher=International nongovernmental organizations|date=|accessdate=2013-06-11|archive-url=https://archive.is/20130620204250/http://www.issmo.net/about/committee.asp|archive-date=2013-06-20|dead-url=yes|df=}}</ref> The society is an affiliated organization of the [[International Union of Theoretical and Applied Mechanics]] (IUTAM).<ref>{{cite web |url=http://iutam.org/?page_id=1049 |title=Affiliated Organizations |publisher=International Union of Theoretical and Applied Mechanics |date=2013 |accessdate=2013-06-11}}</ref>