- A
- Access Initiative, The
- Accion Ecologia
- Acciona
- Accounting for Sustainability*
- Acterra: Action for a Healthy Planet
- Action Against Hunger
- Action4Climate*
- ActionAid International USA
- Activist Insight
- Actuaries Climate Index
- Adbusters Media Foundation
- Advanced Energy for Life Campaign
- Advancing Green Chemistry
- AeroFarms
- African Centre for the Constructive Resolution of Disputes
- Ag Innovations Network
- Agence de l’Environment et de la Maitrisse de l’Energie / ADEME
- Agence de lEnvironnement et de la Maitrise de lEnergie
- Air Pollution & Climate Secretariat
- All India Women’s Conference
- Alliance for a Green Revolution in Africa
- Alliance for International Women’s Rights
- Alliance for Middle East Peace
- Alliance for Peacebuilding
- Alliance for Sustainability and Prosperity*
- Alliance of Communicators for Sust Devel
- Alliance of Small Island States
- Alliance to End Slavery & Trafficking
- Alliance to Save Energy
- Alpbach-Laxenberg Group*
- Amazon International Rainforest Reserve
- Amazonas Sustainable Foundation
- American Association for the Advancement of Science
- American Carbon Registry
- American College and Univ. President’s Climate Commitment*
- American Council for an Energy-Efficient Economy
- American Council on Renewable Energy
- American Meteorological Society
- American Renewable Energy Institute
- American Security Project
- American Sustainable Business Council*
- American Wind Energy Association
- Amnesty International*
- Amp Your Impact
- Amsterdam Global Change Institute
- Animal Welfare Approved
- Antarctic and Southern Ocean Alliance
- Antarctic Ocean Alliance
- Apollo Alliance Project
- Appalachian Institute for Renewable Energy
- Arab Forum for Environment and Development
- Arava Institute for Environmental Studies
- ARC Centre of Excellence for Coral Reef Studies
- Arctic Climate Impact Assessment
- Arctic Council
- Arctic Environmental Protection Strategy
- Arctic Futures Symposium
- Arctic Horizon 2030
- Arctic Methane Emergency Group
- Arctic Monitoring and Assessment Program
- Arizona State University, School of Sustainability
- Armament Research Services
- Arms Control Association
- Artist as Citizen
- Artistes pour la Paix
- As You Sow
- ASEAN ISIS
- Asean People’s Forum
- Ashoka.org
- Asia Foundation
- Asia Investor Group on Climate Change
- Asia-Pacific Programme for Senior National Security Officers
- Asian Cities Climate Change Resilience Network
- Asian Development Bank
- Asian Pacific Environmental Network
- Asociacion ANAI
- Aspen Institute
- Aspire Food Group
- Association for Fire Ecology
- Association for Sustainable and Responsible Investment in Asia
- Association for the Advancement of Sustainability in Higher Education
- Association for the Study of Peak Oil & Gas
- Association for the Taxation of Financial Transactions
- Association for Women’s Rights in Development
- Association of Climate Change Officers
- Atkinson Center for a Sustainable Future
- Augur Project, The
- AVAAZ.org
- B
- B Lab
- Bailiff Africa
- Balaton Group, The
- Ban Toxics
- Bank Track
- Barents-Euro Arctic Council
- Bat Conservation International
- Bay Area Green Tours
- BC3-Basque Center for Climate Change
- Beijer Institute of Ecological Economics
- Belfer Center for Science and International Affairs
- Belmont Forum
- Berkshire Encyclopedia of Sustainability
- Berlin Conference on Global Environmental Change, May 2016
- Bertelsmann Stiftung
- Bertlesmann Stiftung
- Betsy and Jesse Fink Foundation
- Better Future Project
- Better World Campaign
- Betty and Gordon Moore Center for Science and Oceans
- Big Green Innovations
- Bilderberg Meeting
- Billion Dollar Green Challenge
- Biodiversity Research Institute
- Biolite
- Biomimicry Institute
- Biophilac Cities
- Biopolitics International
- BioProtection Research Centre
- Bird Life International
- Bloomberg New Energy Finance*
- Bloomberg Philanthropies*
- Blue Economy
- Blue Frontier Campaign
- Blue Moon Fund
- Blue Ocean Institute
- BlueGreen Alliance*
- Bonn Challenge*
- Bonneville Environmental Foundation
- Boston Common Asset Management
- Boulder Institute of Microfinance and Sustainable Development
- Boundary Peace Initiative
- Brazilian Climate Observatory / Observatorio Do Clima
- Brazilian Foundation for Sustainable Development*
- Breakthrough Energy Coalition*
- Breakthrough Institute
- Bridgespan Group
- Brillouin Energy Corp
- British American Security Information Council
- Brookings Institution
- Buckminster Fuller Institute / BFI
- Buckminster Fuller Institute*
- Building Partnerships for Development in Water and Sanitation
- Bullitt Foundation
- Bureau of Investigative Journalism
- Business Alliance for Local Living Economies
- Business Fights Poverty
- Business for Social Responsibility
- Business for the Environment
- Business in the Community: The Prince’s Responsible Business Network
- C
- C40 Cities Climate Leadership Group
- CAFOD
- Cambridge Energy Research Associates
- Cambridge Institute for Sustainability Leadership
- Campaign to Stop Killer Robots
- Canadian Association of Physicians for the Environment
- Canadian Peace Alliance
- Canadian School of Peacebuilding
- Canadians for a Nuclear Weapons Convention
- Canary Project, The
- Canopy
- Cap-Net UNDP: Capacity Development in Sust Water Management
- Capital Institute
- Carbon Disclosure Project/CDP
- Carbon Neutral Cities Alliance
- Carbon Pricing Leadership Coalition*
- Carbon Pulse
- Carbon Tax Center
- Carbon Tracker Initiative
- Carbon Trust
- Carbon Underground, The*
- Carbon War Room*
- Caribbean Community Climate Change Centre
- Caring for Climate*
- Caritas International*
- Carnegie Corporation of New York*
- Carnegie Council for Ethics in International Affairs
- Carnegie Endowment for International Peace
- Carnegie Institution for Science, Department of Global Ecology
- Carrying Capacity Network
- Carter Center
- Catholic Climate Covenant
- Caux Round Table
- CDA Collaborative
- CEE Bankwatch Network
- CEIS
- Center for 21st Century Security and Intelligence
- Center for a Livable Future
- Center for a New American Security
- Center for Asymmetric Threat Studies
- Center for Atmospheric and Ocean Research
- Center for Atmospheric Sciences
- Center for Biological Diversity
- Center for Climate Adaptation Science and Solutions
- Center for Climate and Energy Solutions
- Center for Climate and Security
- Center for Climate Change Communication
- Center for Ecoliteracy
- Center for Ecology and Sustainable Development
- Center for Environment, Economy and Society
- Center for Environmental Economics Research & Consultancy
- Center for Food Safety
- Center for Frontiers of Subsurface Energy Security
- Center for Global Change and Sustainability
- Center for Global Change Sciences
- Center for Global Development
- Center for Global Nonkilling
- Center for International Climate and Environmental Research
- Center for International Environmental Law
- Center for International Forestry Research
- Center for International Maritime Security
- Center for International Policy*
- Center for International Relations and Sustainable Development
- Center for National Policy
- Center for Nonproliferation Studies
- Center for Ocean Solutions
- Center for Oceans Law and Policy
- Center for Peacebuilding International
- Center for Regenerative Community Solutions
- Center for Reproductive Rights*
- Center for Research on Population and Security
- Center for Respect of Life and the Environment
- Center for Security Policy
- Center for Security Studies
- Center for Solutions to Weather and Climate Risk
- Center for Strategic and Budgetary Assessments
- Center for Strategic and Environmental Studies
- Center for Strategic and International Studies
- Center for Sustainability Studies
- Center for Systemic Peace
- Center for the Advancement of the Steady State Economy
- Center for the New Energy Economy
- Center for World Indigenous Studies
- Center on Global Energy Policy
- Centre for Agri-Environmental Research
- Centre for Climate Change Economics and Policy*
- Centre for Climate Economics and Policy
- Centre for Complex Systems in Transition
- Centre for Environment Education
- Centre for European Policy Studies
- Centre for Green Concrete
- Centre for International Governance Innovation
- Centre for Nuclear Non-Proliferation and Disarmament
- Centre for Science and Environment
- Centre for Sustainable Design
- Centre for Sustainable Development
- Centre for the Study of Existential Risk
- Centre for the Understanding of Sustainable Prosperity*
- Centre of Excellence for National Security
- Centro de Gestao e Estudosas Estrategicos
- CEO Council for Sustainable Urbanization
- Ceres
- Cetacean Alliance
- Change Finance
- Change.org
- Changing Planet
- Charles C. Mott Foundation
- Chartered Institution of Water and Environmental Management
- Chatham House
- Chatham House / The Royal Institute of National Affairs
- Chelsea Green Publishing
- Chicago Council on Global Affairs
- Chicago Project on Security and Terrorism
- Child Family Health International
- Children & Nature Network
- Children’s Investment Fund Foundation
- CHIME FOR CHANGE
- China Center for Contemporary World Studies
- Chinadialogue
- Citizen's for Global Solutions
- Citizens Climate Lobby
- Citizens United for Renewable Energies & Sustainability
- City of Knowledge Foundation
- Civil Society Network for Human Security
- CLASP
- Clean Air Task Force
- Clean Cooking Alliance
- Clean Energy Collective
- Clean Energy Ministerial
- Clean Energy Solutions Center
- Clean Energy Solutions, Inc.
- Clean Path Ventures LLC
- Clean Water Action
- CleanSeas
- CleanTechnica
- ClearPath
- Client Earth*
- Climate Access*
- Climate Accountability Institute
- Climate Action Business Association
- Climate Action Network Europe
- Climate Action Network International
- Climate Action Network South Asia/CANSA
- Climate Action Reserve*
- Climate Action Tracker
- Climate Alliance of European Cities
- Climate Analytics
- Climate and Clean Air Coalition to Reduce Short-Lived Climate Pollutants
- Climate and Development Knowledge Network
- Climate and Land Use Alliance
- Climate and Migration Coalition
- Climate Bonds Initiative
- Climate Central
- Climate Change Business Journal
- Climate Change Commission of the Philippines
- Climate Change Institute
- Climate Change Knowledge Portal
- Climate Change Knowledge Portal*
- Climate Change Task Force
- Climate CoLab
- Climate Council
- Climate Depot
- Climate Disclosure Standards Board
- Climate Group, The
- Climate Institute (Australia)
- Climate Institute (Washington)
- Climate Interactive*
- Climate Investigations Center
- Climate Justice Alliance
- Climate Knowledge Brokers Group*
- Climate Markets & Investment Association
- Climate Neutral Now
- Climate Nexus
- Climate One
- Climate Outreach
- Climate Policy Foundation
- Climate Policy Initiative
- Climate Reality Project
- Climate Science Rapid Response Team
- Climate Science, Awareness and Solutions*
- Climate Solutions
- Climate Strategies*
- Climate Technology Centre & Network
- Climate Technology Initiative
- Climate Vulnerable Forum, The
- Climate Week NYC
- Climate Wise Women
- Climate-Smart Planning Platform
- Climatelinks
- ClimateWire
- ClimateWorks Foundation*
- Climatographers, The
- Climatographers, The*
- Clinton Foundation
- Cloud Institute for Sustainability Education, The
- Club for Degrowth
- Club of Amsterdam
- Club of Budapest
- Club of Madrid
- Club of Rome
- CNA Corporation
- Coalition Climate 21
- Coalition for a Sustainable Africa
- Coalition for Epidemic Preparedness Innovation
- Coalition for Rainforest Nations
- COBRA Project
- CODEPINK: Women for Peace
- Collective Leadership Institute
- College Sustainability Report Card
- Combating Terrorism Center
- Commission on Climate and Tropical Forests
- Commission on Ecosystem Management | IUCN
- Commission on Education and Communication | IUCN
- Commission on Environmental, Economic & Social Policy | IUCN
- Commission on Human Security
- Commission on Science and Technology for Sustainable Development in the South
- Commission on the Measurement of Economic Performance & Social Progress
- Committee on Climate Change
- Committee to Protect Journalists
- Common Current
- Commons Strategies Group
- Community Carbon Trees – Costa Rica
- Compton Foundation*
- Conference Board of Canada
- Connect4Climate
- Conservation International
- Consortium for Ocean Leadership
- Consortium for Science, Policy & Outcomes*
- Consultative Group on Biological Diversity, The
- Consultative Group on International Agricultural Research
- Consultative Group to Assist the Poor
- Consumer Goods Forum
- Convergence Center for Policy Resolution
- Cool Planet
- CoolGlobes: Hot Ideas for a Cooler Planet
- Copenhagen Centre on Energy Efficiency
- Copenhagen Consensus Center*
- Copenhagen Fashion Summit
- Copernicus Institute of Sustainable Development
- Coral Reef Alliance
- Cordaid: The Human Security Network
- Cornell Institute for Climate Change & Agriculture
- Cornucopia Institute, The
- Cornwall Alliance for the Stewardship of Creation
- Corporate EcoForum
- Corporate Renewable Energy Buyers Principles
- Corporate Responsibility Coalition
- Council for Emerging National Security Affairs
- Council for Responsible Genetics
- Council of Councils*
- Council on Energy, Environment and Water
- Council on Foreign Relations
- Counterpart International*
- Cradle to Cradle Products Innovation Institute
- Crisis Action
- CTI Private Financing Advisory Network / CTI-PFAN
- Cuba-U.S. Agroecology Network
- Cultural Survival
- CUNY Institute for Sustainable Cities
- D
- Dancing Star Foundation
- Dark Mountain Project
- Dark Snow
- Data Revolution Group
- David and Anita Keller Foundation
- David and Lucile Packard Foundation
- David Suzuki Foundation
- De Tao Group
- Deep Decarbonization Pathways Project
- Deep Sea Conservation Coalition
- Deepwater Wind
- Degrowth
- Democracy Collaborative*
- DendriFund
- DESERTEC Foundation
- DESIS: Design for Social Innovation & Sustainability
- Deutsche Gesellschafft fur Internationale Zusammenarbeit*
- Development Alternatives
- Development Alternatives Inc.
- Dickinson College
- Dictionary of Sustainable Management
- Disability Rights International
- Divest-Invest Coalition
- DivestInvest Philanthropy
- Donella Meadows Institute
- DONG Energy
- Dow Jones Sustainability Indexes
- Dow Jones Sustainability Indices
- Dual Citizen*
- Dubai Carbon Centre of Excellence*
- E
- E to the Fourth
- E3G/Third Generation Environmentalism
- Earth 911
- Earth Action
- Earth Charter International
- Earth Day Network
- Earth Directory.net*
- Earth Economics*
- Earth Guardians
- Earth Innovation Institute*
- Earth Institute
- Earth Island Institute
- Earth Journalism Network
- Earth Justice*
- Earth Policy Institute
- Earth Portal Community
- Earth System Governance Project
- EARTH University
- Earth Vision Institute
- EarthDECKS*
- EarthGuide
- EarthRights International
- Earthscan Publishers
- EarthTrends
- EarthTrends: The Environmental Information Portal
- EarthWatch Institute
- Earthworks Action
- EastWest Institute
- Eco-Equity
- Eco-Officiency
- Eco-Union
- EcoAgriculture Partners
- Ecocity Builders
- EcoEquity
- Ecofin Research Foundation
- ECOFYS*
- EcoHealth Alliance*
- Ecologic Institute EU
- Ecology and Environment Inc.
- Economics for Equity & Environment
- Economics of Ecosystems & Biodiversity
- Economists for Peace and Security
- Economy for the Common Good
- Ecopeace Middle East
- Ecosystems Marketplace
- Ecotourism and Sustainable Tourism Conference
- ECOWAS Centre for Renewable Energy and Energy Efficiency
- EcoWatch
- Education for Sustainable Development
- EJOLT: Environmental Justice Organizations, Liabilities and Trade
- Elders Climate Action
- Elea Foundation for Ethics in Globalization
- Ellen MacArthur Foundation
- Emirates “A Greener Tomorrow” Campaign
- Emirates Center for Strategic Studies/Research
- Empowered by Light
- Encyclopedia of Earth
- End Water Poverty
- ENEA Consulting
- ENERGIA
- Energy Action Coalition
- Energy and Climate Intelligence Unit
- Energy and Resources Institute*
- Energy Crossroads
- Energy Education
- Energy Foundation
- Energy Foundation China
- Energy Innovation
- Energy Rating
- Energy Research Centre of the Netherlands
- Energy Research Centre/ERC
- Energy Research Institute*
- Energy Sector Management Assistance Program
- ENERGY STAR
- Energy Sustainability Forum
- Energy Watch Group
- Energypedia
- Engineers for a Sustainable World
- Engineers Without Borders USA
- EnviroLink Network
- EnviroLink Network*
- Environment & Energy Publishing
- Environment & Energy Publishing*
- Environment America
- Environment and Energy Study Institute
- Environment and Security Initiative
- Environment Development Action in the Third World/ENDA
- Environmental Defense Fund
- Environmental Education Media Project
- Environmental Entrepreneurs
- Environmental Funders Network
- Environmental Health Perspectives
- Environmental Health Sciences
- Environmental Information Coalition
- Environmental Justice Foundation
- Environmental Resources Management*
- Environmental Training Network for Latin America/Caribbean
- Environmental Working Group
- Environmentalists Against War
- Equality Now
- Equator Principles Association
- Equidad de genero
- ETC Group*
- Ethic Mark GEMS
- Ethical Corporation
- Ethical Markets Media*
- Ethical Money Directory
- Ethical Money Directory 2016
- Ethical Trading Initiative
- EU Non-Proliferation Consortium
- EUROCITIES
- European Bank for Reconstruction and Development
- European Climate Foundation*
- European Coalition for Corporate Justice*
- European ECO Forum, The
- European Environment Agency
- European Environmental Bureau
- European Investment Bank
- European Leadership Network
- European Peacebuilding Liaison Office
- European Photovoltaics Industry Assn
- European Renewable Energies Federation
- European Union Institute for Strategic Studies
- Evangelical Environmental Network
- Everglades Foundation, The
- Experimental Lakes Area
- Extractive Industries Transparency Initiative
- F
- FAARM*
- Fairtrade International
- Family Planning 2020
- Famine Early Warning Systems Network
- Federal Ministry for Economic Cooperation and Development / BMZ
- Federation of German Scientists
- Feeding 10 Billion
- femLINKpacific
- FIA Foundation
- Finance for Change
- Financial Action Task Force
- Financial Transparency Coalition
- Firefighters United for Safety, Ethics, and Ecology
- Fish 2.0
- Five Gyres Institute
- Flora Family Foundation*
- Folke Bernadotte Academy
- Fondacion BNP Paribas
- Fondation pour la recherche strategique
- Fondazione Eni Enrico Mattei
- Food & Water Watch
- Food and Agricultural Organization of the United Nations
- Food Tank: The Food Think Tank
- Ford Inst for Human Security*
- Foresight Canada
- Foresight Horizon Scanning Centre
- Forest Stewardship Council International
- Forest Trends
- Forum for a New World Governance
- Forum for the Future
- Forum on Religion and Ecology at Yale
- Fossil Free
- Foundation Earth
- Foundation for a Culture of Peace
- Foundation for Deep Ecology
- Foundation for Democracy and Sustainable Development
- Foundation for Ecological Security
- Foundation for Middle East Peace
- Foundation for the Global Compact
- Foundation for Tolerance International
- Foundation to Support Open Society
- Four C Association
- Fourth Quadrant Partners
- Fowler Center for Business as an Agent of World Benefit
- FracTracker Alliance
- Frameworks Institute
- Franciscan Action Network/Franciscan Earth Corps
- Frankfurt School-UNEP Collaborating Centre for Climate and Sustainable Energy Finance
- Freedom House*
- Freshwater Action Network
- Freshwater Trust
- FRIDA: European Think Tank for Global Action
- Fridtjof Nansen Institute
- Friends of Nature
- Friends of the Earth
- Friends of the Earth International
- Fundacion Futuro Latinamericano
- Future Earth
- Future Forum
- Future Generations Alliance Foundation
- Future of Fish
- Future of Humanity Institute
- Future of Internet Power
- Future of Life Institute
- Future World Foundation
- Futuribles
- FXB International
- G
- Gaia Trust
- Galvanizing the Groundswell of Climate Actions
- Game Changers 500
- Gatsby Charitable Foundation
- Gender and Disaster Network
- Generation Foundation
- Generation Investment Management
- Generation Waking Up
- Geneva Centre for Human Rights Advancement and Global Dialogue
- Geneva Centre for Security Policy
- Geneva Environment Network
- GeoHazards International
- Georgetown Institute for Women, Peace and Security
- Geothermal Energy Association
- Geothermal Resources Council
- Gerding Edlen
- German Advisory Council on Global Change
- German Development Institute
- German Institute for International and Security Affairs
- German Institute for International and Security Affairs / Stiftung Wissenschaft und Politik
- German Marshall Fund
- German Ministry for International Cooperation / GIZ
- German Watch
- GIST Advisory
- Global 4C
- Global Action to Prevent War and Armed Conflict
- Global Alliance for Banking on Values
- Global Alliance for Climate-Smart Agriculture / GACSA*
- Global Alliance for Improved Nutrition
- Global Alliance for Incinerator Alternatives
- Global Alliance for the Future of Food
- Global Apollo Programme
- Global Bioenergy Partnership
- Global Call for Climate Action, The
- Global Call of Climate Action
- Global Campaign Against Poverty
- Global Canopy Programme
- Global Carbon Project
- Global Catastrophic Risk Institute*
- Global Catholic Climate Movement*
- Global CCS Institute
- Global Centre for the Responsibility to Protect
- Global Challenges Foundation
- Global Change Institute
- Global Citizen
- Global Climate & Health Alliance
- Global Climate Adaptation Partnership
- Global Climate Change Alliance
- Global Climate Convergence
- Global Climate Forum
- Global Climate Legislation Study
- Global Commission on Drug Policy
- Global Commission on the Economy and Climate
- Global Community Initiatives
- Global Community Monitor
- Global Compact Cities Programme
- Global Coral Reef Alliance
- Global Counterterrorism Forum
- Global Cyber Security Capacity Centre
- Global Development and Environment Institute
- Global Ecological Integrity Group
- Global Economic Dynamics and the Biosphere
- Global Ecovillage Network
- Global Electricity Initiative
- Global Energy Assessment*
- Global Environment Facility
- Global Financial Integrity
- Global Food Initiative
- Global Food Safety Initiative
- Global Footprint Network
- Global Foresight Books
- Global Foresight Books.org
- Global Forest Watch
- Global Forest Watch Canada
- Global Forum on Agricultural Research
- Global Fund for Women
- Global Fund to Fight AIDS, TB, and Malaria
- Global Gender and Climate Alliance
- Global Goals Alliance
- Global Governance Institute
- Global Green Growth Forum
- Global Green Growth Institute
- Global Greengrants Fund
- Global Greens*
- Global Harvest Initiative
- Global Health Security Agenda
- Global Indicators for Sustainability Ratings
- Global Initiative for Sustainability Ratings
- Global Initiative to Combat Nuclear Terrorism
- Global Innovation Fund
- Global Institute for Food Security
- Global Institute for Urban and Regional Sustainability, The
- Global Institute of Sustainable Forestry
- Global Investor Coalition on Climate Change
- Global Knowledge Partnership Foundation
- Global Knowledge Partnership on Migration and Development
- Global Land Tool Network
- Global Living Wage Coalition
- Global Marshall Plan Initiative
- Global Methane Initiative
- Global Military Advisory Council on Climate Change
- Global Movement for Children
- Global Network for Climate Solutions
- Global Network for Disaster Reduction
- Global Network on Energy for Sustainable Development
- Global Ocean Commission
- Global Organization of Parliamentarians Against Corruption
- Global Partnership for Effective Development Cooperation
- Global Partnership for Oceans
- Global Partnership for the Prevention of Armed Conflict
- Global Partnership on Forest Landscape Restoration
- Global Population Speak Out
- Global Poverty Project
- Global Product Stewardship Council
- Global Public Policy Institute
- Global Reconciliation
- Global Reporting Initiative
- Global Resource Information Database / GRID-Arendal
- Global Resource Information Database*
- Global Restoration Council
- Global Sanitation Fund*
- Global Security Institute*
- Global Solutions Platform
- Global Solutions Platform*
- Global Sustainability Electricity Partnership
- Global Sustainability Solutions (Manassas, VA)
- Global Sustainability Solutions (Sri Lanka)
- Global Sustainability Summit
- Global Sustainable Laboratory Network
- Global Systems Initiatives
- Global Terrorism Database
- Global Viral
- Global Water Challenge
- Global Water Partnership*
- Global Water Policy Project
- Global Witness
- Global Youth Climate Plan
- Global ZERI Network
- Global Zero*
- Globalance Bank AG*
- GlobalGovernanceWatch.org
- Globalism and Social Policy Programme
- GLOBE International*
- GlobeScan Foundation
- Golisano Institute for Sustainability
- GoodWeave
- Gordon and Betty Moore Foundation*
- Graduate Institute of International and Development Studies
- Graham Sustainability Institute
- Grantham Foundation for the Protection of the Environment
- Grantham Research Institute on Climate Change and the Environment
- Grassroots Global Justice Alliance
- Grassroots International
- Gravity Light
- Great Transition Initiative
- Great Transition Stories
- Green 10
- Green Alliance (Greenland
- Green Alliance (London
- Green Alpha Advisors
- Green America
- Green Bond Principles
- Green Budget Europe
- Green Budget Germany
- Green Century Funds
- Green Cities Campaign
- Green Citizen
- Green City Index
- Green Climate Fund
- Green College Honor Roll
- Green Corps
- Green Cross International
- Green Economics Institute
- Green Economy Coalition
- Green Education Foundation
- Green Facts
- Green Faith
- Green Festivals
- Green for All
- Green Growth Knowledge Platform
- Green Guru Network
- Green Horizon Foundation
- Green Horizon Magazine
- Green Hotels Association
- Green Impact Campaign
- Green Infrastructure Basel*
- Green Innovation and Development Centre
- Green Investment Bank*
- Green Map System
- Green Muslims
- Green Pages Directory
- Green Planet 21
- Green Scissors Coalition
- Green Sports Alliance
- GreenBiz Group
- GreenFacts
- Greenhouse 100 Index
- Greenleaf Publishing
- Greenovate
- Greenpeace International*
- Greentech Media
- GreenWave*
- Greywater Action
- Grist
- Group on Earth Observation Biodiversity…
- Growald Family Fund*
- Growth Bias Busted
- Growth Energy
- Gund Institute for Ecological Economics*
- Guttmacher Institute
- Gwich’in Council Internat
- H
- Habitat Seven
- Hague Institute for Global Justice, The
- Halifax International Security Forum*
- Halloran Philanthropies
- Hampton Creek
- Happy City
- Hardanger Academy on Peace, Development and Environment
- Harm Reduction International
- Health and Environment Alliance*
- Health Care Without Harm
- Health of Mother Earth Foundation
- Heartwood
- Hedayah
- Heifer International
- Heinrich Boll Stiftung
- HELIO International
- Helmholtz Centre for Environmental Research–UFZ
- Helsinki Plus
- High-Level Commission on Carbon Prices
- Himin Solar Valley*
- Hivos
- Housman’s Bookshop
- Human Progress Network
- Human Rights First
- Human Rights Foundation
- Human Rights Watch
- Human Security Institute
- Human Security Report Project
- Humane Society International
- Humanity United
- I
- IBON International
- ICLEI: Local Governments for Sustainability
- IISS Shangri-La Dialogue*
- Imagine Peace
- IMD Global Center for Sustainability Leadership
- Impact Hub Berlin
- Impossible Foods
- Inclusive Growth in Cities Campaign
- Inderscience Publishers
- Indo-German Expert Group on Green and Inclusive Economy*
- Influence Map
- INFORSE/International Network for Sustainable Energy
- Initiatives for International Dialogue
- Initiatives of Change International
- Innaxis Foundation and Research Institute, The
- Innovation Network for Communities
- Inside Climate News
- Institut de Relations Internationales et Stratégiques
- Institute at Brown for Environment & Society
- Institute for Advanced Sustainability Studies
- Institute for Climate Change and Agriculture
- Institute for Democracy
- Institute for Ecological Economy Research
- Institute for Economics and Peace
- Institute for Energy Economics and Financial Analysis
- Institute for Energy Research
- Institute for Environment and Sustainability
- Institute for Environmental Security
- Institute for Ethics & Emerging Technologies
- Institute for European Environmental Policy
- Institute for Global Engagement
- Institute for Global Environmental Strategies
- Institute for Global Food Security
- Institute for Governance & Sustainable Development
- Institute for Human Security*
- Institute for Inclusive Society
- Institute for Local Self-Reliance
- Institute for National Security and Counterterrorism
- Institute for National Security Studies
- Institute for National Strategic Studies
- Institute for New Economic Thinking, The*
- Institute for Policy Studies*
- Institute for Science and International Security
- Institute for Sustainable Development (Chico, CA
- Institute for Sustainable Development (Warsaw, Poland
- Institute for Sustainable Development and International Relations / IDDRI
- Institute for Sustainable Energy Policies
- Institute for Sustainable Energy Solutions
- Institute for Sustainable Resources
- Institute for Sustainable Social Change
- Institute for Sustainable Solutions
- Institute for Sustainable Tourism
- Institute for Sustainable Waste Management and Technology
- Institute for the Study of War
- Institute francais des relations internationals
- Institute of Arctic and Alpine Research
- Institute of Cultural Diplomacy
- Institute of Development Studies
- Institute of Development Studies*
- Institute of Earth System Preservation
- Institute of Public and Environmental Affairs
- Institute of Strategic & International Studies
- Institute of World Economy and International Relations
- Institute of World Ideas
- Institutional Investors Group on Climate Change
- Instituto de Ecologia
- Instituto Socioambiental
- Integrated Research System for Sustainability Science
- Intelligence and National Security Alliance
- InterAcademy Partnership, The
- InterAction Council
- Interaction Institute for Social Change
- Intercambio Climatico – LAPC
- InterEnvironment Institute*
- Interfaith Center on Corporate Responsibility
- Interfaith Power & Light
- Intergenerational Partnership for Sustainability | IUCN
- Intergovernmental Panel on Climate Change
- Intergovernmental Renewable Energy Org
- Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services
- Intermediate Technology Development Group
- Internal Displacement Monitoring Centre
- International Alliance for Research Universities*
- International Anti-Corruption Academy
- International Arctic Science Committee*
- International Association for the Study of the Commons
- International Association of Lawyers against Nuclear Arms
- International Association of Universities
- International Association of University Presidents
- International Atomic Energy Agency
- International Bridges to Justice
- International Campaign to Abolish Nuclear Weapons
- International Campaign to Ban Landmines
- International Center for Agricultural Research in Dry Areas
- International Center for Climate Governance
- International Center for Climate Governance*
- International Center for Migration Policy Devel*
- International Center for Research on Women
- International Centre for Biosaline Agriculture
- International Centre for Climate Change and Development
- International Centre for Integrated Mountain Development
- International Centre for Sustainable Development of Energy, Water, and Environment Systems
- International Centre for Trade and Sustainable Development
- International Climate Initiative
- International Coalition for Sustainable Aviation
- International Committee for Robot Arms Control
- International Committee of Artists for Peace
- International Committee of the Red Cross
- International Conference on Family Planning
- International Conference on Sustainable Development*
- International Conference on Sustainable Transitions*
- International Consortium of Investigative Reporters
- International Council for Science
- International Council on Clean Transport
- International Court of Justice
- International Crisis Group
- International Development Conference
- International Development Law Orgn*
- International Development Research Centre
- International Economic Development Council
- International Ecotourism Society, The
- International Energy Agency
- International Energy Agency/IEA
- International Expert Group on Earth Systems Preservation
- International Federation for Housing and Planning
- International Federation of Organic Agricultural Movements / IFOAM
- International Finance Corporation
- International Food Policy Research Institute*
- International Forum on Globalization
- International Forum on Sustainable Future in Asia: Converting Aspirations to Actions
- International Fund for Agricultural Development
- International Futures Forum
- International Geosphere-Biosphere Programme
- International Group of Funding Agencies for Global Change Research
- International Growth Centre
- International HIV/AIDS Alliance
- International Hydrological Programme
- International Initiative for Promoting Political Economy
- International Institute for Applied Systems Analysis
- International Institute for Democracy and Electoral Assistance
- International Institute for Environment and Development
- International Institute for Industrial Environmental Economics
- International Institute for Security Studies
- International Institute for Strategic Studies
- International Institute for Sustainable Development
- International Institute for Sustainable Labs
- International Integrated Reporting Council
- International Islamic Climate Change Symposium*
- International Labour Organization
- International Land and Forest Tenure Facility
- International Land Coalition
- International Monetary Fund
- International Network of Engineers and Scientists Against Proliferation
- International Network of Engineers and Scientists for Global Responsibility
- International Network of Resource Information Centers
- International Ocean Discovery Program
- International Oceans Program
- International Organic Accreditation Service / IOAS
- International Organization for Migration*
- International Panel for Sustainable Resource Management
- International Panel on Fissile Materials
- International Partnership for Energy Efficiency Cooperation/IPEEC
- International Partnership on Mitigation and MRV*
- International Peace and Security Institute
- International Peace Bureau
- International Peace Institute
- International Peace Research Institute-PRIO
- International Physicians for Prevention of Nuclear War
- International Planned Parenthood Federation*
- International Polar Foundation
- International Programme on the State of the Ocean
- International Relations and Security Network
- International Renewable Energy Agency
- International Rescue Committee
- International Resource Panel
- International Rivers
- International Science and Technology Alliance for Global Sustainability*
- International Seafood Sustainability Foundation
- International Security Program
- International Security Program (Belfer Center
- International Security Program (New America Fdn
- International Security Program (Washington
- International Social Science Council
- International Society for Ecological Economics
- International Society for Industrial Ecology
- International Society for Reef Studies
- International Society for Sustainability Science
- International Society of Doctors for the Environment
- International Society of Sustainability Professionals
- International Solar Energy Society
- International Standards Organization
- International Studies Association
- International Union for Conservation of Nature
- International Union for the Conservation of Nature / IUCN
- International Water Association
- International Water Resources Association
- International Work Group for Indigenous Affairs
- International Youth Climate Movement*
- InterParliamentary Union
- INTERPOL Global Complex for Innovation
- Intersections International
- Inuit Circumpolar Council
- Invenergy LLC
- Investor Environmental Health Network
- Investor Group on Climate Change
- Investor Network on Climate Risk*
- ISEAL Alliance
- ISGC2015.com
- Islamic Foundation for Ecology and Environmental Science
- Island Press
- Islands First
- It’sGettingHotinHere.org
- IUCN Global Gender Office
- J
- James Hutton Institute
- James Martin Center for Non Proliferation Studies
- Jane Goodall Institute
- Jane’s Information Group
- Japan Environmental Council
- Japan for Sustainability
- Joint Ocean Commission Initiative
- Joint Research Centre
- Joint Research Centre*
- Joseph Rowntree Charitable Trust
- Journal of Global Security Studies
- Journal of Human Security
- Journal of Science and Global Security
- Journal of Sustainability Education
- Journal of Sustainable Development
- Jubilee Campaign
- K
- L
- Labor Network for Sustainability
- LafargeHolcim
- Land Institute
- Landscapes for People, Food and Nature
- Latin America Regional Climate Initiative
- Leadership for Environment and Development International
- Leadership Institute for Ecology and the Economy
- Leading Group on Innovative Financing for Development
- League of Conservation Voters Education Fund
- LENR-cities
- Leonardo di Caprio Foundation
- Leonardo ENERGY
- Library of Alexandria
- Lifeboat Foundation
- Lighting Africa
- Lincoln Institute of Land Policy
- Lintilhac Foundation
- Liu Institute for Global Issues
- Low Energy Nuclear Reaction Industrial Assn
- Lowell Center for Sust Production
- Lowy Institute for International Policy
- Luc Hoffman Institute
- Ludwig-Boelkow-Stiftung
- M
- MacArthur Foundation
- Mahatma Gandhi Institute of Education for Peace and Sustainable Devel
- Margaret Cargill Foundation
- Marine Stewardship Council
- Marion Institute
- Mary Robinson Foundation
- Mason Center for Climate and Society
- Massachusetts Climate Action Network
- Master of Environmental Studies Program
- MAVA, Fondation pour la nature
- Mayer Foundation for Human Progress
- McDonough Braungart Design Chemistry
- McGuinness Institute
- Measure What Matters Initiative*
- Medical Association for Prevention of War
- Mertz-Gilmore Foundation*
- Metropolis Farms
- Microcredit Summit Campaign
- Middle Powers Initiative
- Migration Policy Institute
- Millennium Alliance for Humanity and the Biosystem
- Millennium Ecosystem Assessment
- Millennium Institute*
- Millennium Project
- Millennium Project, The
- Millennium Water Alliance
- Mines Action Canada
- Mission 2020
- Mission Blue
- MISTRA: Foundation for Strategic Environmental Research
- MIT Energy Initiative
- MIT Press, The
- Modern Meadow
- Modern War Institute
- Moms Clean Air Force
- Monday Morning
- Monterey Bay Aquarium
- Morgan Stanley Institute for Sustainable Investing
- Mothers’ Service Society
- Mountain Forum
- Movement Generation
- Munasinghe Institute for Development
- Munich Environmental Institute
- N
- Nairobi Peace Initiative-Africa
- National Center for Sustainable Development
- National Council on Science and the Environment
- National Counterterrorism Center
- National Development and Reform Commission
- National Institute of Defense Studies
- National Oceanic and Atmospheric Administration
- National Peace Academy
- National Renewable Energy Laboratory
- National Security College
- National Socio-Environmental Synthesis Center
- National Sustainable Agriculture Coalition
- National Wildlife Federation
- Natural Capital Coalition
- Natural Capital Institute
- Natural Capitalism Solutions
- Natural Logic
- Natural Marketing Institute
- Natural Resources Canada
- Natural Resources Defense Council
- Nature Conservancy
- Nature For All | IUCN
- Navdanya
- Navdanya International
- Nereus Program: Predicting Future Oceans
- Network for Sustainable Financial Markets
- Network of Global Agenda Councils
- Network of Regional Governments for Sust. Devel.
- Networking Action
- New Alliance for Food Security and Nutrition
- New Alternatives Fund
- New Climate Economy, The*
- New Development Paradigm
- New Economics Foundation
- New Economics Institute
- New Economy Coalition
- New Economy Working Group
- New Energy Economy
- New Energy Foundation
- New Stories
- New Venture Fund for Policy & Advocacy
- NewClimate Institute*
- Next System Project
- NextGen Climate Action
- Nexus – The Water, Energy & Food Security Resource Platform
- NIAC Action
- Nicholas Institute for Environmental Policy Solutions
- Nobel Women’s Initiative
- Non-Violence International.net
- North American Bird Conservation Initiative
- North Asia Regional Peacebuilding Institute
- Northern Forest Center
- Northwest Earth Institute
- Norton Security Center
- Norwegian Institute for Defence Studies
- Norwegian Institute of International Affairs
- Norwegian Polar Institute
- Nourish International
- NSF International*
- Nuclear Age Peace Foundation
- Nuclear Information and Resource Service
- Nuclear Matters
- Nuclear Security Summit
- Nuclear Threat Initiative
- O
- Oak Foundation*
- Oakland Institute
- OASEfoundation.eu
- Observatorio do Clima
- Ocean Arks International
- Ocean Care
- Ocean Cleanup, The
- Ocean Conservancy
- Ocean Energy Status Report
- Ocean Futures Society
- Ocean Health Index
- Ocean Support Foundation
- Oceana
- Oceanic Society
- Oceans 5
- Oceans Institute
- Oil Change International
- Oilwatch International
- Omidyar Network
- One Earth Future Foundation
- One Hundred Resilient Cities
- One Young World
- Online Progressive Engagement Network
- OPEC Fund for International Development
- Open Government Partnership
- Oregon Wave Energy Trust
- Organic Center, The
- Organic Consumers Association
- Organic Trade Association
- Organisation for Economic Co-operation and Development
- Organisation for Prohibition of Chemical Weapons*
- Organization for Security and Cooperation in Europe
- Oslo Principles on Global Climate Change Obligation
- Our Children’s Trust
- Our Power Campaign: Communities United for a Just Transition
- Overbrook Foundation
- Overseas Cooperative Development Council
- Overseas Development Institute
- Oxfam International
- Oxford Martin Commission for Future Generations
- Oxford Martin School
- Oxford Poverty and Human Development Initiative
- Oxford Research Group*
- P
- Pachamama Alliance
- Pacific Community
- Pacific Institute
- Palau International Coral Reef Center
- Pardee Center for International Futures
- Pardee Center for the Study of the Longer Term Future
- Parliamentarians for Nuclear Non-Proliferation and Disarmament
- Participatory Sustainable Waste Management
- Partnership for Refugees
- Partnership for Responsible Growth
- Partnership for Sustainable, Low Carbon Transit
- Partnerships for Change
- Paulson Institute
- Pax Arctica Initiative
- Peace and Collaborative Development Network
- Peace and Security Funding Group
- Peace Boat
- Peace Brigades International
- Peace Development Fund
- Peace Research Institute Frankfurt
- Peace Research Institute Oslo
- PeaceWomen
- Peer to Peer Foundation
- Pegasus Capital Advisors
- Pembina Institute
- Permanent Peace Movement
- Pew Charitable Trusts: Environmental Initiatives
- Physicians for Global Survival
- Physicians for Human Rights
- Physicians for Social Responsibility
- Plan Blue
- Planet Heritage Foundation
- Planetary Boundaries Research Network*
- Planetwork NGO
- PlanetWorkShops
- Plant for the Planet
- Ploughshares Fund
- Plymouth Marine Laboratory
- Polden-Puckham Charitable Foundation
- Political Economy Research Institute
- Polity Books
- Pollinator Partnership
- Population Action International
- Population and Sustainability Network
- Population and Sustainable Development Alliance
- Population Council
- Population Health Research Institute
- Population Matters
- Population Media Center
- Population Services International
- Post Growth Alliance
- Post Growth Institute
- Post-Carbon Institute
- Potsdam Institute for Climate Impact Research
- Practical Action*
- Praxis Peace Institute
- Presidential Climate Action Project
- Prince Albert II of Monaco Foundation
- Principles for Responsible Investment
- Principles for Sustainable Insurance*
- Private Financing Advisory Network
- PRODENA: The Association for the Defense of Nature
- Product-Life Institute
- Program on Science and Global Security
- Programme for the Endorsement of Forest Certification
- Project 2049 Institute
- Project for the Application of Law for Fauna
- Project Oversight
- Project Ploughshares
- Protected Planet
- Public Employees for Environmental Responsibility
- Pugwash Conferences on Science and World Affairs
- Pumpmakers
- Q
- R
- Radicalization Awareness Network
- Rainforest Action Network
- Rainforest Alliance
- Rainforest Foundation Fund
- Ramos Peace and Development Foundation
- Real Economy Lab, The
- RECOFTC – The Center for People and Forests
- Red Cross
- REDD Programme
- Redefining Progress
- Reef Ball Foundation
- Reef Relief
- Reegle
- Refugees International
- Regeneration International
- Regional Centre for Strategic Studies
- Regions of Climate Action
- Regulatory Assistance Project
- Religions for Peace
- Remote Control Project of the Network for Social Change
- REN21/Renewable Energy Policy Network for the 21st Century
- Renewable Energy and Energy Efficiency Partnership
- Renewable Energy Buyers Alliance
- Reporters Without Borders
- Research and Degrowth
- Research Association for Knowledge Integrity in Economics
- Research Institute for Sustainable Humanosphere
- Resilience Alliance
- Resource Innovation Group, The
- Responsible Business Forum on Sustainable Development
- Responsible Endowments Coalition
- Rethinking Economics
- Revenue Watch Institute
- Revive & Restore
- Right Livelihood Award Foundation
- Rights and Resources Initiative
- Risk Institute
- Risk Management Solutions
- Risky Business
- Robert F. Kennedy Center for Justice and Human Rights
- Rockefeller Foundation
- Rocky Mountain Institute
- Roots & Shoots
- Ross Center for Sustainable Cities
- Rostock Group: Making a Better World
- Royal Society Science Policy Centre
- Royal United Services Institute
- Ruckus Society
- Rural Advancement Foundation International-USA
- S
- S. Rajaratnam School of International Studies
- Sabin Center for Climate Change Law
- Safe Climate Australia
- Safer Chemicals, Healthy Families
- Saferworld
- Sasakawa Peace Foundation
- Save Our Species | IUCN
- Save the Elephants
- Savory Institute
- Scherman Foundation
- Schmidt Family Foundation
- Schumacher Center for a New Economics
- Schumacher Institute for Sust Systems
- Science and Technology Alliance for Global Sustainability
- SCP Clearinghouse
- SCP Clearinghouse*
- SDG Academy*
- Sea Shepherd Conservation Society
- Second Nature
- SecurityWomen
- Seed Freedom
- SEED Institute
- Servicios y Asesoria para la Paz
- Shellcatch
- Shift Project
- Siam Intelligence Unit
- Siemens Green City Index
- Sierra Club
- Simons Foundation
- Sister Fund, The
- Skeptical Science
- Skoll Foundation
- Skoll Global Threats Fund
- SkyTruth
- Small Arms Survey
- Small Planet Institute
- Smart Prosperity Institute
- Social Accountability International
- Social Enterprise Alliance
- Social Enterprise World Forum
- Social Funds
- Social Justice Connection
- Society for Conservation Biology
- Society for Ecological Restoration
- Soil Association
- Solar Century
- Solar Energy Industry Association
- Solar Foundation
- Solar GCC Alliance
- Solar Power Europe
- Solutions Journal
- Solutions Project, The
- South Africa Institute of International Affairs
- SouthSouthNorth
- SOVA Center for Information and Analysis
- Soylent
- Species Survival Commission | IUCN
- Sphere Project
- Spiritual Alliance for Earth
- SRI Conference on Sustainable Responsible Impact Investing
- SRI World Group
- Stakeholder Forum for a Sustainable Future
- Stanley Foundation
- Stiftung Mercator
- Stiftung Wissenschaft und Politik
- Stimson Center
- Stockholm Environment Institute
- Stockholm International Peace Research Institute
- Stockholm International Peace Research Institute /SIPRI
- Stockholm International Water Institute
- Stockholm Resilience Centre
- StopGlobalWarming
- Strategic Energy Technologies Information System
- Strategic Energy Technologies Information System*
- Strategic Studies Institute
- Strategic Sustainability Consulting
- Super-Efficient Equipment and Appliance Deployment Initiative
- Surdna Foundation
- Survival International
- Sustain Ability Showcase Asia
- Sustainability Action Network
- Sustainability Institute
- Sustainability Laboratory, The
- Sustainability Leaders Network
- Sustainability Ltd.
- Sustainability Research Centre
- Sustainability Science Consortium
- Sustainability Summit | The Economist Events
- Sustainability Transitions Research Network
- Sustainability: Science, Practice & Policy
- Sustainable Accounting Standards Board
- Sustainable America
- Sustainable Brands
- Sustainable Capacity International Institute
- Sustainable Cities International
- Sustainable City Network
- Sustainable Commodity Assistance Network
- Sustainable Consumption Research and Action Initiative
- Sustainable Development
- Sustainable Development Commission*
- Sustainable Development Futures
- Sustainable Development Institute
- Sustainable Development Policy Institute
- Sustainable Economic and Enterprise Development Institute / SEED
- Sustainable Economies Law Center
- Sustainable Endowments Coalition
- Sustainable Endowments Institute
- Sustainable Energy and Environment Forum
- Sustainable Energy for All
- Sustainable Energy Forum
- Sustainable Europe Research Institute
- Sustainable Food Laboratory
- Sustainable Forestry Initiative
- Sustainable Future Campaign
- Sustainable Lifestyles Research Group
- Sustainable Prosperity
- Sustainable Solutions Corporation
- Sustainable Stock Exchanges Initiative
- Sustainable Trade Initiative
- Sustainable Value Creation
- Sustainable WASH
- Sustainable World Coalition
- Sustainable World Initiative
- Sustainia
- SustainLabour: International Labour Foundation for Sust. Devel
- SustainX
- Swedish International Development Cooperation Agency
- Swedish Peace and Arbitration Society
- T
- Task Force on Measuring Sustainable Development
- Tax Justice Network
- Taxpayers for Common Sense
- Tebtebba
- TEEB/The Economics of Ecosystems & Biodiversity
- Tellus Institute
- Ten Island Renewable Challenge
- Tent Foundation
- Tenure Facility, The
- TERI University
- Terrorism Research & Analysis Consortium
- Terrorism, Transnational Crime & Corruption Center
- Think Tank Map
- Third Generation Environmentalism/E3G
- Third Pole, The
- Third Way
- Third World Centre for Water Management
- Thoreau Center for Sustainability
- Three Cubed
- Three Fifty
- Threshold Foundation
- Tilia Fund
- Toda Institute for Global Peace and Policy Research
- TomKat Charitable Trust*
- TomorrowsCompany.com
- Traffic: The Wildlife Trade Monitoring Network
- Transatlantic Climate Security Dialogue
- TRANSCEND International
- Transformational Media Initiative
- Transformations to Sustainability Programme
- Transition Network
- Transition United States
- Transnational Institute
- Transparency International
- Transport & Environment
- Transportation Sustainability Research Center
- Trees & Design Action Group
- Triangle Center on Terrorism and Homeland Security
- Triple Pundit
- Trucost
- Trudeau Center for Peace and Conflict Studies
- Truman National Security Project
- Turner Foundation
- Twenty Thirty Water Resources Group
- Tyndall Centre for Climate Change*
- U
- U.S. Global Leadership Coalition
- UC Carbon Neutrality Initiative
- UC Global Food Initiative
- UN Climate Change Newsroom
- UN Climate Technology Centre & Network*
- UN Conference on Environment and Development
- UN Conference on Housing and Sustainable Urban Development
- UN Conference on Sustainable Development
- UN Convention to Combat Desertification
- UN Data Revolution Group
- UN Department of Economic and Social Affairs
- UN Development Programme
- UN Economic Council for Europe
- UN Environment Programme
- UN Framework Convention on Climate Change/UNFCCC
- UN Global Compact
- UN Global Counter Terrorism Centre
- UN Institute for Training and Research
- UN Office for Disaster Risk Reduction
- UN Population Fund
- UN Principles for Responsible Investment
- UN REDD Programme
- UN Sustainable Development Solutions Network
- UN Women
- UN World Food Programme
- UN-Energy
- UNCTAD-World Investment Forum
- UNEP DTU Partnership
- UNEP Finance Initiative
- UNEP International Panel for Sust Resource Management
- UNEP Minamata Convention on Mercury
- UNESCO
- UNESCO-IHE Institute for Water Education
- Union of Concerned Scientists
- Union of International Associations
- United Cities and Local Governments
- United Kingdom Department for International Development
- United Nations Educational, Scientific and Cultural Organization / UNESCO
- United Nations Foundation
- United Nations Industrial Development Organization
- United Nations University
- United Religions Initiative
- United Wind
- United World Colleges
- University for Peace
- University Leaders for a Sustainable Future
- University Network for Climate and Ecosystems Change Adaptation Research
- UNU Institute for Sustainability and Peace
- UNU Institute for Sustainable Development
- UNU Institute for Sustainable Development*
- UNU Institute for Water, Environment and Health
- Uppsala Conflict Data Program
- Urban Ag News
- Urban Renaissance Institute
- Urban Sustainability Directors Network
- Urgenda Foundation
- US Air Force Institute for National Security Studies
- US Department of Energy, Office of Energy Efficiency and Renewable Energy
- US Department of Homeland Security
- US Global Change Research Program
- US Institute of Peace
- US-China Clean Energy Research Center
- UTZ: Better Farming Better Future
- V
- W
- Walk Free Foundation
- Wallace Global Fund
- Washington Peace Center
- Waste & Resources Action Programme
- Waste Management
- Water
- Water and Climate Coalition
- Water Defense
- Water Supply and Sanitation Collaborative Council
- WaterAid
- Waterkeeper Alliance
- We Mean Business Coalition
- Wealth Accounting and Valuation of Ecosystem Services
- Weeden Foundation
- Well Grounded
- Wellspring Advisory
- West Africa Network for Peacebuilding
- Western Climate Initiative
- Wetlands International
- Whale & Dolphin Conservation Soc.
- What If Technologies
- What Is Missing? Foundation
- What Next Forum
- Widening Circle
- Wilburforce Foundation
- WILD Foundation, The
- WildEarth Guardians
- Wildlands Network
- Wildlife Conservation Society
- Wildlife Justice Commission
- William and Flora Hewlett Foundation
- Winslow Foundation
- WiserEarth
- Women and Gender Constituency
- Women Deliver
- Women Engage for a Common Future
- Women for Water Partnership
- Women for Women International
- Women in Europe for a Common Future
- Women in Security, Conflict Management, and Peace
- Women Moving Millions
- Women Organizing for Change in Agriculture & Natural Resource Management/WOCAN
- Women’s Environment & Development Organization/WEDO
- Women’s Funding Network
- Women’s International League for Peace & Freedom
- Women’s Network for a Sustainable Future
- Woodrow Wilson International Center for Scholars
- Woods Hole Research Center
- World Academy of Art and Science
- World Academy of Sciences, The
- World Agroforestry Centre
- World Alliance for Decentralized Energy
- World Bank
- World Bioenergy Association
- World Business Academy
- World Business Council for Sustainable Development
- World Climate Ltd
- World Commission on Environmental Law / WCEL | IUCN
- World Commission on Protected Areas | IUCN
- World Conservation and Monitoring Centre
- World Council for Renewable Energy
- World Council of Indigenous Peoples
- World Economic Forum
- World Economics Association
- World Energy Council
- World Engagement Institute
- World Environmental Organization
- World Fair Trade Organization
- World Federalist Movement
- World Food Programme
- World Forum on Natural Capital
- World Future Council
- World Future Society
- World Futures Studies Federation
- World Green Building Council*
- World Health Organization
- World in 2050 Project
- World Index for Social and Environmental Responsibility
- World Information Service on Energy
- World Investment Forum
- World Justice Project
- World Ocean Council
- World Ocean Summit
- World Peace Foundation
- World Policy Institute
- World Public Forum Dialogue of Civilizations
- World Pulse
- World Rainforest Movement
- World Resources Institute
- World Social Forum*
- World Trade Organization
- World University Consortium
- World Vision International
- World Water Assessment Programme*
- World Wildlife Fund
- World Wind Energy Association
- Worldchanging
- Worldwatch Institute
- Wuppertal Institute for Climate, Environment, and Energy
- WWF Global*
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