Johan Bergenäs is a research assistant at the Washington, DC office of the James Martin Center for Nonproliferation Studies. Bergenäs joined CNS in 2006 to work on a United Nations Institute for Disarmament Research (UNIDIR)-CNS joint research project on a weapon of mass destruction (WMD) terrorism United Nations Security Council Resolution (Resolution 1540). His published work includes a chapter in UNIDIR's book, Implementing Resolution 1540: the Role of Regional Organizations, articles in The Nonproliferation Review and WMD Insights, as well as a March 2008 Op-Ed co-authored with Dr. Lawrence Scheinman in one of Sweden's major newspapers, Aftonbladet.

Prior to joining CNS, Bergenäs, a native of Sweden, worked on a range of peace, security, and development issues at Oxfam America, including the Genocide in Darfur, the summer war in 2006 between Israel and Lebanon, and the humanitarian disaster in the Democratic Republic of Congo. He also previously worked as a reporter for The Daily Iowan and Smålandsposten, daily newspapers in Iowa and Sweden respectively. In the lead up to the United States presidential race in 2004 he covered the Iowa Caucuses for a web-based publication, IowaPresidentialPolitics.com. He has also written extensively on comparing and contrasting Swedish and US culture, including a tourism article published in the National Geographic Traveler. As a result, Bergenäs has received several awards for his dedication to journalism and the written word. He holds bachelor's degrees in political science and journalism and mass communications from the University of Iowa. He grew up in Växjö, Sweden.