High Quality Content by WIKIPEDIA articles! The American Nuclear Society (ANS) is an international, not-for-profit 501(c)(3) scientific and educational organization with a membership of approximately 11,000 scientists, engineers, educators, students, and other associate members. Approximately 900 members live outside the United States in 40 countries. There are 51 U.S. and nine non-U.S. local sections, 24 nuclear plant branches and 34 student sections. ANS members represent more than 1,600 corporations, educational institutions, and government agencies.