• Ministry & Agency
• Local Government
• University & Research Institute
• NGO

Ministry & Agency

• Cabinet Office
• Ministry of Agriculture, Forestry and Fisheries
• Ministry of Economy, Trade and Industry
• Ministry of Education, Culture, Sports, Science and Technology
• Ministry of Finance
• Ministry of Foreign Affairs
• Ministry of Health, Labour and Welfare
• Ministry of Justice
• Ministry of Land, Infrastructure and Transport
• Ministry of Public Management, Home Affairs, Posts and Telecommunications
• Ministry of the Environment
• Agency for Natural Resources and Energy
• Fisheries Agency
• Japan Meteorological Agency

Local Government

• Fukui Prefectural Government
• Kanagawa Prefectural Government
• Kochi Prefectural Government
• Mie Prefectural Government
• Osaka Prefectural Government
• Tokyo Metropolitan Government
• Toyama Prefectural Government

University & Research Institute

• Asia Biomass Center
• Biomass Project Research Center
• Environmental Research Institute Tokyo
• Global Environmental Information Center
• GMR Watch Center
• Institute for Global Environmental Strategies
• Institute for Sustainable Energy Policies
• Iwate University
• Japan Acid Rain Monitoring Network
• Japan Environmental Association
• Kyoto University Graduate School of Global Environmental Studies
• National Institute for Environmental Studies
• Ritsumeikan Asia Pacific University
• The World Data Centre for Greenhouse Gases (WDCGG)
• The University of Shiga Prefecture
• Tokyo Denki University
• UNU Online Learning
• World School Network

NGO

• APEC Monitor NGO Network
• Association to Protect Northernmost Dugong
• Business Leaders' Inter-Forum for Environment 21
• Buy Nothing Day Japan
• Citizens' Alliance for saving the Atmosphere and the Earth (CASA)
• Citizens Environmental Foundation
• Conservation International
• Earth Observation Center
• EARTH VISION
• Friends of the Earth Japan
• Global EdVenture
• Global Sports Alliance (GSA)
• Green Purchasing Network
• International NGO Forum for Ozone Layer Protection and against Global Warming (INFOG)
• Japan Environmental Education Forum (JEEF)
• Japan Offspring Fund
• Japan Wildlife Conservation Society (JWCS)
• Network Earth Village
• NPO Gateway International Center, Fujisawa
• ORGANIZATION for INDUSTRIAL, SPIRITUAL and CULTURAL ADVANCEMENT (OISCA)
• Overseas Environmental Cooperation Center Japan
• PC4peace
• Ramsar Center Japan
• Sea Turtle Association of Japan
• The Sloth Club
• The NGO Network for Realization of the Aarhus Convention in Japan (Aarhus Net Japan)
• Think the Earth Project & SPACEPORT Inc.
• The Kiyosato Educational Experiment Project (KEEP)