- The Official Residence of the Prime Minister - Ministry of Foreign Affairs - Ministry of Finance - Ministry of Education, Science, Sports and Culture - Ministry of Health and Welfare - Ministry of International Trade and Industry - Small and Medium Enterprises Agency - Ministry of Transport - Fair Trade Commission - Management and Coordination Agency - Financial Planning Agency - International Telecommunication Union (ITU) - Organization for Economic Cooperation and Development (OECD) - Federal Communications Commission (FCC), USA - President's Council on Year 2000 Conversion, USA - Task Force 2000, UK - IBM Japan