International
- IUCN - International Union for Conservation of Nature
- Lithuanian Energy Institute (LEI)
- 21 Solutions
- 350.org
- 3D Associates - Experts in International Law and Policy
- 3keel
- ABRELPE – Brazilian Association of Public Cleaning and Waste Management Companies
- Abundance Investment Ltd
- Academy of Gandhian Studies
- Adene - Agencia para a Energia
- Advisory Services in Environmental Management (ASEM)/ GTZ
- Africa Climate Solutions
- Afrik Eveil Ghana
- AFRY
- Agence de l'Environnement et de la Maîtrise de l'Énergie
- Agence du Bassin Hydraulique du Souss-Massa et Drâa
- Agencia Estatal Consejo Superior de Investigaciones (CSIC)
- Agenzia Napoletana Per L'energia E Per L'ambiente
- Akörde
- Al al-Bayt Universität
- Al-Balqa' Applied University
- alpS
- Application Européenne de Technologies et de Services (AETS)
- Arcadis
- Arctik
- Aristotle University of Thessaloniki
- Artelia
- Asia Society for Social Improvement and Sustainable Transformation (ASSIST)
- Asian Management Consulting (AMC)
- Asian Productivity Organization (APO)
- Association of Chambers of Commerce of Veneto Region (UCV)
- Association of Municipalities Polish Network „Energie Cités” (PNEC)
- Association Technique Energie Environnement (ATEE)
- ATECMA
- Atlas Environnement
- Austrian Recycling Consulting GmbH (ARECON)
- Autoritatea Naţională de Reglementare în domeniul Energiei (ANRE)
- Avvai Village Welfare Society (AVWS)
- Ayuntamiento de Valladolid – Valladolid City Council (INNOLID)
- Babes-Bolyai University (BBU) - Center for the Study of Democracy
- Babeș-Bolyai-Universität Cluj (UBB)
- Barcelona Centre for International Affairs (CIDOB)
- Beijing Eco-Green Advisory (BEGA)
- Belmont Innovaties & Management bv
- Bio Intelligence Service SAS
- Birzeit University
- Black Sea Energy Research Centre (BSERC)
- Blätterwald GmbH
- Bluenergy Group SpA (BluE)
- BOKU - Universität für Bodenkultur Wien
- Bristol University (BU)
- Bruxelles Environnement
- BSD Consulting
- Buildings Performance Institute Europe (BPIE)
- Bulgarian Consulting Centre
- Bureau de recherches géologiques et minières (BRGM)
- BuroHappold
- Callisto
- Cambridge Econometrics
- Caped Koala Studios
- Carbon Trust
- Cardiff University
- CEGESTI – Fundación Centro de Gestión Tecnológica e Informática Industrial
- Cenia, Czech Environmental Information Agency
- Center for Climate and Security
- Center for European Policy Studies
- Center for International Forestry Research (CIFOR)
- Centre de Suivi Ecologique (CSE)
- CENTRE EUROPÉEN DE RECHERCHE ET D'ENSEIGNEMENT DES GÉOSCIENCES DE L'ENVIRONNEMENT
- Centre for Ecology & Hydrology
- Centre for International Climate and Environmental Research (CICERO)
- Centre for Renewable Energy Sources and Saving (CRES)
- Centre for System Solutions
- Centric Austria International
- Centro de Investigaciones y Estudios Superiores en Antropologia Social (CIESAS)
- Centro Ecuatoriano de Eficiencia de Recursos y Producción más Limpia
- Chamber of Commerce and Industry of the Tajik Republic
- Chamber of Commerce and Industry of Uzbekistan
- Chatham House
- Chiang Mai University
- China Electronic Energy Saving Technology Association (CEESTA)
- CICOMER – Center for Investment and Commerce
- Cimera
- City Waste Recycling
- CLASP
- Climate & Energy Solutions
- Climate Focus
- Climate Outreach
- Climate Policy Initiative (CPI)
- Climatekos
- Clingendael - the Netherlands Institute of International Relations
- Clingendael | Netherlands institute of International Relations
- Club EMAS Catalonia
- CMCC: Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici
- CNPML – Centro Nacional de Producción Más Limpia y Tecnologías Ambientales
- CNRDPA: National Centre for Fisheries and Aquaculture Research and Development
- Comunità Ambiente
- Confederation of Indian Industry (CII)
- Confederation of Indian Industry (CII)
- Confederation of Indian Industry - Center of Excellence for Sustainable Development (CII-CESD)
- Cork Institute of Technology
- COWI
- CPML – El Centro de Producción Mas Limpio de Nicaragua
- Crafts Development Center Margilan
- Creara Consultores S.L.
- CREM BV
- Crisis Management Initiative
- Cyprus Employers & Industrialists Federation
- D-mat
- Danish Energy Agency
- Danish Institute for Human Rights
- DAPHNE - Institute of Applied Ecology
- Deutsches Institut für Wirtschaftsforschung (DIW Berlin)
- Development Alternatives Group
- Development Alternatives Inc.
- Development Workshop France Association
- Dhaka Chamber of Commerce & Industry (DCCI)
- Dhaka Chamber of Commerce and Industry (DCCI)
- DHI Group
- E3G - Third Generation Environmentalism
- ecodes
- Ecole Supérieure des Technologies Industrielles Avancées (ESTIA)
- Econnexions
- Economic and Social Commission for Western Asia (ESCWA)
- EcoPolicy Research and Consulting
- ECOTRANS e.V.
- Egypt National Cleaner Production Centre
- Ekodoma
- Electroplaters and Metal Finishers Association of Madurai (EPMFAT)
- EnergÉtica Coop
- Energy Agency of Plovdiv
- Energy Cities
- Energy Efficiency Bureau, Department Of Energy, India
- Energy Institute Hrvoje Požar (EIHP)
- Energy Manager Training International (EMT)
- Energy Saving Trust (EST)
- Entwicklungsprogramm der Vereinten Nationen (UNDP)
- Environ Association
- Environment and Security Initiative (ENVSEC)
- Environmental Camps for Conservation Awareness (ECCA)
- Environmental Design Solutions (EDS)
- Environmental Institute, Slowakei
- Enviros
- Epta Prime S.r.l. (Epta)
- Ernst Basler+Partner
- Ernst&Young
- Ernst&Young Climate Change & Sustainability Services
- Espire Consult
- Espire Consult
- ETH Zürich (ETHZ)
- Eunomia
- EUROCITIES
- Europäische Akademie Bozen (EURAC)
- Europäische Kommission
- European Centre for Development Policy Management (ECDPM)
- European Cold Storage and Logistics Association (ECSLA)
- European Environmental Bureau
- European Environmental Citizens Organisation for Standardisation (ECOS)
- European Forum on Nature Conservation and Pastoralism (EFNCP)
- European Peacebuilding Liaison Office
- European Services Network (ESN)
- European Sustainable Development Network
- Faculdade de Ciências da Universidade de Lisboa (FCiências.ID)
- FAKT Consult for Management, Training and Technologies
- FEDARENE
- Federazione Italiana per l'uso Razionale dell'Energia (FIRE)
- Feníe Energía S.A.
- FH JOANNEUM University of Applied Sciences
- Finnish Meteorological Institute (FMI)
- Folk Centre for Renewable Energy
- Fondazione Icons
- Fondazione IMC - Centro Marino Internazionale Onlus
- Fraunhofer Institut für System- und Innovationsforschung (ISI)
- Fraunhofer-Institut für System- und Innovationsforschung (ISI)
- Freie Universität Brüssel (ULB)
- Fresh Thoughts Consulting
- Frontier Economics
- Fundación Cartif (CARTIF)
- Fundación Ideas para la Paz
- Fundación Neotrópica
- Fundación para las Relaciones Internacionales y el Diálogo Exterior (FRIDE)
- Fundación Tres Culturas
- GEONARDO Ltd.
- Get2C
- GFA Consulting Group
- Ghana National Cleaner Production Centre
- GHK - Institute of Development Studies
- GIZ International Services
- GlobalCad
- GOPA
- Gorakhpur Environmental Action Group (GEAG)
- GreenDependent
- Greenstream
- Grupo GEA
- GTZ ASEM
- GTZ Office Nepal
- Gurgaon Industrial Association (GIA)
- GVEP Kenia
- Hainan Development and Reform Commission (DRC)
- Hainan Normal University
- Harokopio University
- Hazardous Substances Logistics Association (HASLA)
- Hellenic Foundation for European and Foreign Policy
- I-ENER
- iC consulenten
- ICF Consulting India Private Limited
- ICF International Inc.
- ICLEI – Local Governments for Sustainability
- ICPDR International Commission for the Protection of the Danube River
- ifanos
- INDECON
- Indo-German Energy Programme (IGEN)
- INFRAS
- Institut der Europäischen Union für Sicherheitsstudien (EUISS)
- Institute for Essential Services Reform (IESR)
- Institute for European Energy and Climate Policy (IEECP)
- INSTITUTE FOR EUROPEAN ENERGY AND CLIMATE POLICY (IEECP)
- Institute for European Environmental Policy (IEEP)
- Institute for European Studies, Free University Brussels
- Institute for Law and Environmental Governance (ILEG)
- Institute for Managing Sustainability - WU Vienna
- Institute for Sustainable Development (ISD)
- Institute of Greek Tourism Confederation (INSETE)
- Interdisciplinary Centre for Comparative Research in the Social Sciences (ICCR)
- Interdisciplinary Institute for Environmental Research (DIPE)
- INTERFACE Politikstudien Forschung Beratung GmbH
- International Alert
- International Center for Transitional Justice
- International Institute for Energy Conservation (IIEC)
- International Institute for Geo-Information Science and Earth Observation (ITC)
- International Institute for Global Environmental Studies (IGES)
- International Institute for Sustainable Development (IISD)
- International Organization for Migration (IOM)
- International Training Centre of the ILO
- International Union for Conservation of Nature (IUCN)
- Internationales Wirtschaftsforum Regenerative Energien (IWR) GmbH
- Istituto di Ecologia Applicata (Institute of Applied Ecology, IEA)
- Istituto di Studi per l'Integrazione dei Sistemi (ISIS)
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA)
- Kanagaraj Ganesan
- kanji
- Kashtakari Panchayat Trust (KPT)
- Katholisch Universität Mosambik (UCM)
- Kaunas University of Technology
- Kauno Energija AB
- Kentro Technologikis Epevnas Dytikis Makedonias
- Köhler & Klett Rechtsanwälte
- Korinthos Chamber of Commerce
- KWR Watercycle Research Institute
- La Ville de Paris
- Laboratoire de Météorologie Dynamique du CNRS
- Legambiente
- Libélula
- Lilongwe University of Agriculture and Natural Resources (LUANAR)
- Living Prospects
- London Economics Europe
- Lyonnaise des Eaux/Suez
- Manufacturers' Association for Information Technology (MAIT)
- META Innovation Lab
- Meteorologisk institutt (MetNo)
- Milieu - Law & Policy Consulting
- Ministry of Culture & Tourism Indonesia (MoCT)
- MinPol - Agency for International Minerals Policy
- MIO-ECSDE
- Missions Publiques
- Montanuniversität Leoben
- MONTEFELTRO SERVICE LTD
- Municipality of Cluj-Napoca
- National Cleaner Production Centre
- National Cleaner Production Centre - Sri Lanka
- National Productivity Council (NPC)
- National Research Center (NRC) Egypt
- National Trust EcoFund (NTEF)
- Nationale Polnische Energieagentur (KAPE)
- Navigant
- Netherlands Institute for International Relations
- NIBIO - Norsk Institute For Bioøkonomi
- North-West Croatia Regional Energy Agency (REGEA)
- Nouveaux Espaces de Transport en Europe, Application Recherche (NESTEAR)
- OER (Energy Cities Romania)
- Office National de l’Assainissement (ONAS)
- Omospondia Ergodoton & Viomichanonkyprou
- One World Sustainable Investments
- OÖ Energiesparverband (ESV)
- OpenOil
- Organisation für Sicherheit und Zusammenarbeit in Europa (OSZE)
- Osborne Clarke International Legal Practice
- Österreichische Bundesforste
- Österreichische Energieagentur
- Overseas Development Institute
- OWW Consulting
- Paris-Lodron-Universität
- Parley for the Oceans
- Partner-Initiativen für Friedenskonsolidierung
- Partners for Democratic Change International
- Pelangi Indonesia
- Perkumpulan Untuk Peningkatan Usaha Kecil (PUPUK)
- Plugwise
- Podravje Energy Agency (ENERGAP)
- Policy Studies Institute (PSI)
- Politecnico di Milano Italy
- Polnischer Arbeitgeberverband "Lewiatan"
- PricewaterhouseCoopers (PwC)
- PricewaterhouseCoopers Kenia
- Prof. John Jackson Ewing
- Prospektiker
- PROVFE - Servizio Ambiente
- public garden
- Recursos e Investigación para el Desarrollo Sustentable - RIDES
- Reed Consulting
- Regional Environmental Centre for Central Asia (CAREC)
- Regionalna Energetska Agencija Sjeverozapadne Hrvatske
- RHV Trattnachtal
- Ricardo-AEA
- Riga Energy Agency
- Rīgas Tehniskā universitāte
- Romalimenta - federatia patronatelor din industria alimentara
- RSO S.p.A.
- RWTH Aachen
- Saferworld
- School of Foreign Services at Georgetown University
- SCOPE-intrasoft
- Scuola Superiore Sant’Anna
- Senture Consulting
- Servelect SRL
- SEVEn
- Shift Project Ltd.
- SinoCarbon
- Social Seva Initiatives (SSI)
- Socialab México
- Society for Environmental & Economic Development Nepal (SEED-Nepal)
- Society for Rural Development
- Society of Indian Automobile Manufacturers (SIAM)
- SOMO – Stichting Onderzoek Multinationale Ondernemingen
- Soresma
- Spark Center for Social Entrepreneurship Development
- Spread European Safety Geie
- Stajerska Gospodarska Zbornica Firm
- STELLA Consulting
- Stenum Asia
- STENUM GmbH - Unternehmensberatung und Forschungsgesellschaft für Umweltfragen
- Stockholm Environment Institute (SEI)
- Stockholm International Peace Research Institute
- Stockholm International Peace Research Institute (SIPRI)
- Stockholm International Peace Research Institute (SIPRI)
- Stowarzyszenie Centrum Rozwiązań Systemowych (CRS)
- Strategos Advisory
- Suomen ymparistokeskus (SYKE)
- Sustainability Support Services (Europe) AB (SSS)
- Sustainable Energy Africa
- SWaCH Plus
- Swach Pune Seva Cooperative Society Limited
- Swedish Defence Research Agency (FOI)
- Swedish Energy Agency
- Tartu Regiooni Energieaagentuur
- Teesside University
- Telespazio
- The Association of Energy Managers of Towns and Regions of the Czech Republic (SEMMO)
- The Center for Climate & Security
- The Center for Climate and Security (CCS)
- The Energy and Resource Institute (TERI)
- The Footprint Initiative for Latin America and the Caribbean (LAC)
- The Hague Centre for Strategic Studies
- The Interdisciplinary Centre for Comparative Research in the Social Sciences (ICCR)
- The Istituto di Ecologia Applicata (Institute of Applied Ecology, IEA)
- The Maldives National University
- The University of Piraeus Research Centre (UPRC)
- Tilburg University
- Tipperary Energy Agency
- Tourism Development Centre Tajikistan
- Toxics Link
- Tractebel Engineering SA
- Trinity College Dublin
- Trinomics B.V.
- Triodos Facet
- Trioss
- Trucost
- Tunis International Centre for Environmental Technologies
- TÜV Rheinland Vietnam
- Uganda Cleaner Production Centre
- UKCIP - School of Geography and the Environment
- Umweltbundesamt Österreich
- Umweltprogramm der Vereinten Nationen (UNEP)
- UN-HABITAT Regional Office for Asia and the Pacific
- United Nations University
- Universidad de los Andes
- Universidad Nacional
- Universidade da Coruña (UDC)
- Universidade Federal de Paraíba (UFPE)
- Universidade Federal de Pernambuco (UFPB)
- Università Bocconi
- Università degli Studi di Brescia
- Università degli studi di Genova (UNIGE)
- Universität für Bodenkultur Wien (BOKU)
- Universität für Bodenkultur Wien (BOKU)
- Universität Graz
- Universität Leiden
- Universität Linköping
- Universität Lund
- Universität Parma (UNIPR)
- Universität Pierre & Marie Curie (UPMC)
- Universitat Politecnica de Valencia
- Universität Salzburg - Zentrum für Geoinformatik (Z_GIS)
- Universität Siena (UNISI)
- Universität Stockholm
- Universität Uppsala
- Universität Uppsala (UU)
- Universität von Balamand
- Universität Zürich
- Universitatea Tehnica Cluj-Napoca
- Universite de Savoie
- Université Toulouse
- University of California at Davis
- University of Cape Coast
- University of Chemistry and Technology Prague (UCT)
- University of Cyprus (UCY)
- University of East Anglia (UEA)
- University of Edinburgh
- University of Exeter (UNEXE)
- University of Manchester
- University of Marrakech Cadi Ayyad
- University of Oslo (UiO)
- University of Queensland
- University of San Francisco
- University of Sussex
- University of York
- Valor & Tinge A/S
- VITUKI (Water Resources Research Centre)
- vores bureau ApS
- Warsaw Institute for Economic Studies (WISE)
- Welttourismusorganisation (UNWTO)
- White & Case LLP
- Willis Towers Watson
- Wirtschaftsuniversität Wien (WU)
- Women’s Entrepreneurship Access Center (WEAC)
- Woodrow Wilson International Center for Scholars
- World Bank Institute
- World Resources Forum
- WorldFish Center
- WRAP
- Yildiz Technische Universität Istanbul (YTU)
- Zagreb Holding Ltd.
- Zaļā brīvība
- Zentrum für Energie und Umwelt - Züricher Hochschule für Angewandte Wissenschaften (ZHAW)
- Zentrums für Energie und Umwelt - Züricher Hoschule für Angewandte Wissenschaften (ZHAW)
- Zero Waste Maldives
