Michael Mariotte. Executive Director and the chief spokesperson for NIRS. He has led the organization for 20 years making numerous television appearances and has been widely quoted in the press. He has testified in the United States Senate and before the U.S. House of Representatives on radioactive waste transportation; radioactive metals “recycling;” the future of the nuclear power industry; “one-step” reactor licensing and other issues. He is a graduate of Antioch College.

Diane D'Arrigo. Radioactive Waste Project Director. Her main area of expertise is radioactive waste and radiation issues. In addition, she has considerable international experience. She has closely followed so-called "low-level" nuclear waste issues for decades, the national and international moves to deregulate nuclear waste that would allow it to be made into everyday household items and be dumped as regular trash. She has been with NIRS since 1986, has a degree in chemistry and environmental studies and work experience in analytical chemistry and biological research.

Mary Olson. Director of the Southeast Office. Implements NIRS’ mission in the Southeast. Olson joined NIRS staff in 1991, and served in DC as lobbyist for the Stop Mobile Chernobyl Campaign, and as NIX MOX Campaign Coordinator. The Southeast Office, founded in 1999 and based in Asheville, NC enables action on new nuclear initiatives in the region, of which there are many. A seasoned public speaker, Olson is a frequent guest on radio and has appeared on national and regional television. She has a B.A. from Reed College, with a double major in Biology and History of Science, and subsequent study in chemistry and biochemistry at Purdue University.

Aja Binette. Nuclear Economics Campaigner. Aja joined NIRS in November 2007 and has been personally involved in the anti-nuclear movement, specifically the activism surrounding Three Mile Island. Her focus at NIRS is researching and campaigning on the economic aspects of the nuclear industry. She has a MA in Political Science from San Diego State University and a BA in International Politics from Penn State University.

Donald Keesing, Administrative Coordinator. Donald Keesing is NIRS Administrative Coordinator and has been with NIRS since 2000. He has been active in the environmental and social justice movements since the 1980s. He canvassed door to door for Greenpeace and has organized benefit concerts for NIRS and a women’s homeless shelter that featured prominent recording artists. A musician and songwriter, he has performed at numerous protests and benefits. Don also has a strong interest in indigenous environmental issues and, together with his wife, heads a grassroots organization called Voices Opposed To Environmental Racism (VOTER) which addresses non-nuclear native issues.

Tanya Murza. Works on NIRS website.