Tadashi Yamamoto "is president of the Japan Center for International Exchange, which he founded in 1970. He served as a member and executive director of the late Prime Minister Obuchi's Commission on Japan's Goals in the 21st Century. He has served as Japanese executive director of the Japan-U.S. Economic Relations Group, the U.S.-Japan Advisory Commission, and the Korea-Japan 21st Century Committee. Mr. Yamamoto also has been a member of the First and Second Prime Minister's Private Council on International Cultural Exchange. He is currently a member and the Japanese director of the Trilateral Commission, the U.K.-Japan 2000 Group, the Japanese-German Dialogue Forum, and the Korea-Japan Forum." 
- International Advisory Board, Pew Global Attitudes Project
- Board of Governors, East-West Center
- U.S.-Japan Leadership Program - Advisory Board, United States-Japan Foundation
- "Tadashi Yamamoto", (Biographical note), Undated, Accessed June 2007.