Organisations internationales

• Aquatic Ecosystem Health and Management Society (AEHMS)
• Biodiversity Conservation Information System, The (BCIS)
• BIOSIS
• Birdlife International
• Botanic Gardens Conservation International
• CAB International (CABI)
• Center for Marine Conservation
• Conservation International (CI)
• Coral Reef Alliance (CRA)
• DIVERSITAS, An International Programme of Biodiversity Science
• Earthwatch Institute
• Fauna & Flora International
• Food and Agriculture Organization of the United Nations (FAO)
• FAO - Thematic site on biodiversity
• FAO - Thematic site on forests
• FAO - Thematic site on sustainable development
• Forest Action Network (FAN)
• Friends of the Earth International
• Friends of the Earth Europe
• Genetic Resources Action International (GRAIN)
• Global Biodiversity Forum (GBF)
• Green Cross International
• Greenpeace International
• Helsinki Commission (HELCOM)
• International Association for Great Lakes Research
• International Food Policy Research Institute
• International Institute for Sustainable Development (IISD)
• International Maritime Organization (IMO)
• International Organization for Plant Information (IOPI)
• International Society of City and Regional Planners (ISOCARP)
• International Species Information System (ISIS)
• International Tropical Timber Organisation (ITTO)
• International Union of Biological Sciences (IUBS)
• IUCN - The World Conservation Union
• IUCN - The World Commission on Protected Areas 
• IUCN Red List of Threatened Animals
• MEDMARAVIS
• Nature Conservancy, The
• National Geographic Society
• National Geographic's and WWF's Wild World Website
• National Trust, The
• National Trust Environment and Conservation Website, The
• Plantlife - the Wild-Plant Conservation Charity
• Organisation for Economic Co-operation and Development (OECD)
• Ramsar Convention on Wetlands
• Rural Advancement Foundation International (RAFI)
• TRAFFIC Europe
• UNAIDS
• UNESCO
• UNFF
• United Nations Environmental Programme (UNEP)
• Water Environment Federation (WEF)
• Wetlands International
• Wildlife Conservation Society
• Wildlife Society
• World Intellectual Property Organization
• World Conservation Monitoring Centre (WCMC)
• World Conservation Union, The (IUCN)
• World Intellectual Property Organization (WIPO)
• World Resources Institute (WRI)
• World Trade Organization (WTO)
• World Water Council (WWC)
• World Wide Fund for Nature (WWF - Directory of international websites)
• World Wide Fund for Nature (WWF - International)
• World Wildlife Fund for Nature (WWF - USA)
• World Wide Fund for Nature (WWF - Belgium)
• World Wide Fund for Nature (WWF - European Freshwater Programme)
• World Zoo Organization, The (IUDZG)