- United Nations Environment Programme
- United Nations Development Programme
- Environmental Knowledge for Change
- National Council for Science and the Environment
- SuperPages
- National Geographic
- Academy of Natural Sciences
- Agence canadienne d'évaluation environnementale
- Environmentsite
- Society of Environmental Journalists
- World Environment Day
- African Wild Dog Conservancy
- Aga Khan Trust for Culture
- American Consumer Council
- American Indoor Air Quality Council
- Antinea Foundation
- ATWA (ATWA International)
- Bellona Foundation
- BirdLife International
- Center for International Environmental Law
- Conservation International
- Earth First!
- Earth Liberation Front
- Earth System Science Partnership
- International Geosphere-Biosphere Programme
...Updated