| 4RCap Holdings Ltd. | Private Sector |
| A J Lucas Group Limited | Private Sector |
| A2G | Private Sector |
| Abatement Solutions - Asia Pacific | Private Sector |
| Abbott Energy & Environment Consulting, Inc. | Private Sector |
| ABPS Infrastructure Advisory | Private Sector |
| ABUTEC LLC | Private Sector |
| ACOI, Inc. | Private Sector |
| Adsorptech Inc. | Private Sector |
| Advanced Resources International, Inc. (ARI) | Private Sector |
| Advantage Energy Marketing, Inc. | Private Sector |
| AECOM Technical Services, Inc | Private Sector |
| Aerison Pty Ltd | Private Sector |
| Aerzen USA Corp. | Private Sector |
| AES Corporation | Private Sector |
| AESEDA, Penn State University | Research |
| Africa Initiative For Environment Sustainable Netw | Other |
| African Centre for Sustainanble Energy Technologie | Research |
| AGAMA Biogas | Private Sector |
| AgCert International | Private Sector |
| AgRefresh | Private Sector |
| Agroleo Consulting | Private Sector |
| AHEAD Energy Corporation | Other |
| Air & Gas Systems, Inc. | Private Sector |
| AISU | Other |
| Akeida Capital Management | Private Sector |
| All Events Group | Private Sector |
| Allied Engineering & Services Limited | Private Sector |
| Aloe Private Equity | Private Sector |
| AlterLat Energia Alternativa de Latinoamerica | Private Sector |
| Amcana Environmental Inc. | Private Sector |
| American Petroleum Institute (API) | Other |
| Amgaz Furnizare SRL | Private Sector |
| Amoda Environmental Solutions | Private Sector |
| Anagha Datta Trade | Private Sector |
| Anatolia Gas Energy Petroleum | Private Sector |
| Andean Co. | Private Sector |
| Andrew Young and Associates | Private Sector |
| Animal Science Research Institute of Iran | Research |
| Arc Media Global | Private Sector |
| Argonne National Laboratory | Research |
| Arrow Energy | Private Sector |
| Artson Green Solutions Limited | Private Sector |
| Asel-Tech | Private Sector |
| Ashok Sansthan | Other |
| Asia Clean Energy Pte Ltd | Private Sector |
| Asian Development Bank (ADB) | Financial Institution |
| Asociación Mexicana de Biomasa y Biogás A.C. | Government |
| Atlas Copco Drilling Solutions Inc | Private Sector |
| Australasian Energy Pty Limited | Private Sector |
| Australian Petroleum Prod. & Exploration Assoc. | Private Sector |
| Avalon Consulting | Private Sector |
| Baker & Mckenzie | Private Sector |
| Balance Power and Gas Pty Ltd | Private Sector |
| Ballyco SRL | Private Sector |
| Barlow Jonker Pty Ltd | Private Sector |
| Battelle | Other |
| BCS Inc. | Private Sector |
| Beijing Tianqing Power | Private Sector |
| BGR | Government |
| Bhilai Engineering Corporation Limited | Private Sector |
| BHP Billiton | Private Sector |
| BHR Group Limited | Research |
| Bhugole Corporation | Private Sector |
| BIO CDM | Private Sector |
| Bio Organics Group Pty Ltd | Private Sector |
| Bio-Energizer Management Consulting | Other |
| Bio-Organic Catalyst, Inc. | Private Sector |
| BioEarth Inc. | Private Sector |
| Biofuels Racing Alliance | Other |
| Biorem | Private Sector |
| BJCECEP | Private Sector |
| Blair Air System | Private Sector |
| Blev Bnefesh Carbon Finance | Private Sector |
| Blue Tip Energy Management | Financial Institution |
| Bluestone | Private Sector |
| Bose Research & Development Inc. | Private Sector |
| BP | Private Sector |
| Bveledza Solutions Pty. Ltd | Private Sector |
| C6 Capital | Financial Institution |
| CalScan Services Ltd. | Private Sector |
| Camara Empresaria de Medio Ambiente | NGO |
| Cambridge Project Development, Inc. | Private Sector |
| Cameron Compression Systems | Private Sector |
| Cameroon Ministry of Energy and Water | Government |
| Canadian Institute of Resources Law | Research |
| Carbon Capital Markets | Financial Institution |
| Carbon Credit Capital | Private Sector |
| Carbon Limits AS | Private Sector |
| Carbono Eficiente | Private Sector |
| Carbotrader | Private Sector |
| Carver & Associates | Other |
| Caspervandertak Consulting | Private Sector |
| Catalytic Products International | Private Sector |
| Caterpillar, Inc. | Private Sector |
| CDM Development Ltd | Other |
| CDM Smith | Private Sector |
| CDX Gas LLC | Private Sector |
| Cecil Morgan Consulting | Private Sector |
| Cedigaz | Other |
| CEMEYCOM | Other |
| Centek Laboratories, LLC | Private Sector |
| Center for Scientific and Industrial Research | Research |
| Central Energy Fund (CEF) (Pty) Ltd | Other |
| Central Mine Planning & Design Institute Ltd (CMPDI) | Private Sector |
| Centre for Low Emission Technology | Research |
| Centrisys | Private Sector |
| CETAC-WEST | Private Sector |
| CH2M Hill Canada Ltd. | Private Sector |
| Cheminfo Services Inc. | Private Sector |
| Cherkasytransgas Regional Pipeline Division | Private Sector |
| China University of Petroleum (UPC) | Research |
| Circom Development Corporation | Private Sector |
| Citizens International, LLC | Private Sector |
| Clarke Energy Pty Ltd | Private Sector |
| Clean Air Initiative for Asian Cities | Government |
| Clean Air Task Force | NGO |
| Clean TeQ | Private Sector |
| Clean Trade Group | Private Sector |
| Clean World Solutions LLC | Private Sector |
| Clearstone Engineering Ltd. | Private Sector |
| Climate Capital Network | Financial Institution |
| Climate Change Capital | Private Sector |
| Climate Change Coordination Centre | NGO |
| Climate Change Research Institute | Other |
| ClimateBridge | Private Sector |
| ClimateWedge | Private Sector |
| Clouston Energy Research, LLC | Private Sector |
| Club Biogaz - ATEE | Other |
| CO2 Impact | Private Sector |
| CO2 Solutions | Private Sector |
| Coal Methane Solutions | Private Sector |
| Colen Services Ltd | Private Sector |
| Colombian Council for Energy Efficiency (CCEE) | NGO |
| Com-N-Power, Inc. | Private Sector |
| Combustion Technologies Pvt. Ltd. | Private Sector |
| COMM Engineering | Private Sector |
| Community Initiatives for Development & Environment | Other |
| Compass Point Systems | Private Sector |
| Compressor Engineering Corp. (CECO) | Private Sector |
| Conestoga-Rovers & Associates, Inc. (CRA) | Private Sector |
| Confederation Of Indian Industry | Private Sector |
| ConocoPhillips | Private Sector |
| Conventions & Fairs (India) Pvt. Ltd. | Private Sector |
| Cooler Skies Company | Private Sector |
| Core Carbon Group | Private Sector |
| Corky's Carbon & Combustion Pty Ltd | Private Sector |
| Cornerstone Environmental Group, LLC | Private Sector |
| Corporación CDT de GAS | Research |
| Cossacks & Co Attorneys At Law | Private Sector |
| COWI China | Private Sector |
| COzero Pty. Ltd. | Private Sector |
| Crane Supply (A Division of Crane Canada Company) | Private Sector |
| Cryogenic Consulting Service, LLC | Private Sector |
| Cryogenic Fuel Technologies | Research |
| CSI Ingenieros | Private Sector |
| CSM Energy Pty Ltd. | Private Sector |
| Curtin University, Centre for Research in Energy and Minerals Economics | University |
| Dason Technology | Private Sector |
| DATUM | Private Sector |
| DDA Canada East | Private Sector |
| DDMA Engenharia, Pesquisa e Desenvolvimento Ltda | Private Sector |
| Deep Industries Limited | Private Sector |
| Delhiraj Agro Foods & Beverages Pvt Ltd | Private Sector |
| Deloitte | Private Sector |
| Deneb Solutions | Private Sector |
| Desarrollar e Integrar SA | Private Sector |
| Deuman | Private Sector |
| Development Logix | Other |
| Devon Energy | Private Sector |
| Diesel To Energy | Other |
| DMK INGENIERIA, S.L.N.E. | Private Sector |
| DOMANI | Private Sector |
| Dominion | Private Sector |
| Drammen Gassverk | Private Sector |
| DW Communications & Media, Youth Initiative Energy & Environment Program | Private Sector |
| Earth Charter International | Other |
| Eastern Research Group, Inc. (ERG) | Contractor |
| EBX GROUP | Private Sector |
| Eco Conceitos | Private Sector |
| ECO Organization | Other |
| Eco-Solids International Limited | Private Sector |
| EcoFrontier | Private Sector |
| Ecolution Capital | Private Sector |
| EcoSecurities, Ltd | Private Sector |
| ECP CONSULTING | Private Sector |
| Ecuadorian CDM Promotion Office - CORDELIM | Other |
| Ecumed Petroleum | Private Sector |
| eda Environmental Ltd. | Private Sector |
| Edelweiss Capital | Private Sector |
| Edwards Industrial Equipment Corp | Private Sector |
| Effective Information, LLC | Private Sector |
| EkoTech Energy LLC | Private Sector |
| Element Markets, LLC | Private Sector |
| Emerald Gas Limited | Private Sector |
| Emergent Solar Technologies | Private Sector |
| Emergent Ventures India | Private Sector |
| Emerson Climate Technologies | Private Sector |
| Emilaug Energy Limited | Private Sector |
| EMIT Environmental Brokers | Private Sector |
| EMS Global | Private Sector |
| EnConsult | Other |
| Endesa Carbono | Private Sector |
| ENER.G Natural Power Ltd | Private Sector |
| Enercon Engineering, Inc. | Private Sector |
| Energetics | Private Sector |
| Energetics Development | Private Sector |
| Energium GH/GES Inc | Private Sector |
| Energon Power & Gas Ltd. | Private Sector |
| Energy & Environment Business Services Ltd. (EEBS) | Private Sector |
| Energy and Power | Private Sector |
| Energy Global Pty Ltd. | Private Sector |
| Energy Research Austria | Research |
| Energy Resources International, Inc | Private Sector |
| Energy Strategy Consultants | Private Sector |
| Energy Trends Consultores | Private Sector |
| EnergyWorx Ltd | Private Sector |
| Eni S.p.A. | Private Sector |
| ENVIRON International Corp. | Private Sector |
| Environmental Concept and Services Ltd | Private Sector |
| Environmental Planning, Engineering, & Management | Private Sector |
| Environmental Protection Welfare Ass. of India | Other |
| Environmental Reclamation Services Ltd | Private Sector |
| Environmental Resources Management, Inc. | Private Sector |
| Environmental Support Services | Research |
| Environmentally Friendly Drilling Systems Program | Research |
| Envirotech | Other |
| Enzen Global Solutions Pvt. Limited | Private Sector |
| EQS | Private Sector |
| Equipamentos y Suministros Industriales S.A.de C.V. | Private Sector |
| ESBI Carbon Solutions | Private Sector |
| Esmeralda Conceptions Organization | Private Sector |
| Essent Trading | Private Sector |
| Ethan Bio Fuels | Private Sector |
| EUCC - The Coastal Union | Other |
| Eurogas Ukraine | Private Sector |
| Everest Agriculture and Farming Sdn Bhd | Private Sector |
| Excel Engineering, Inc. | Private Sector |
| Excel Team Holdings Limited | Private Sector |
| Fagen, Inc. | Private Sector |
| Federation of Indian Chambers of Commerce and Industry (FICCI) | Other |
| Finanzas Ambientales Internacionales | Private Sector |
| Finning International Inc. | Private Sector |
| FirmGreen, Inc. | Private Sector |
| First Exploration and Development Services | Private Sector |
| FlexEnergy Inc | Research |
| Fluid Components International (FCI) | Private Sector |
| Fourth Generation Capital Corporation | Private Sector |
| Franatech GmbH | Private Sector |
| FTH Resource Marketing Inc | Private Sector |
| FUEL CELLS INC. | Private Sector |
| Fundacion Entorno | Other |
| Fundacion Torcuato Di Tella | Other |
| Future Enviroassets, LLC | Private Sector |
| GAIL (India) Limited | Private Sector |
| Gardes Energy Services Inc. | Private Sector |
| Gas Madre Tierra S.A. de C.V | Private Sector |
| Gas Separation Technology LLC | Private Sector |
| Gas Technologies LLC | Private Sector |
| GD-Die Planer | Private Sector |
| GE Capital Markets Corporate | Private Sector |
| GE Jenbacher GmbH & Co KG | Private Sector |
| General Electric | Private Sector |
| geoconsult | Private Sector |
| GERES | Other |
| German Hard Coal Association | Private Sector |
| GHG Accounting Services | Private Sector |
| Global Edge Project Consulting | Private Sector |
| Global Ex-Import, Inc. | Private Sector |
| Global Industrial Dynamics | Private Sector |
| Global Oil | Private Sector |
| Global Oil Flow International, LLC | Private Sector |
| Golder Associates Inc. | Private Sector |
| Goldman Sachs International | Private Sector |
| Green Barrel Energy | Private Sector |
| Green Concepts Associates | Private Sector |
| Green Domus Desenvolvimento Sustentável Ltda | Private Sector |
| Green Gas International | Private Sector |
| Green Holdings | Private Sector |
| Green Point Energy | Private Sector |
| Green Power Energy Conferences | Private Sector |
| Green Power, Inc. | Private Sector |
| GreenAir Ltd | Private Sector |
| Greenfiniti Consulting Canada | Private Sector |
| Greenhouse Gas Services - a GE AES Venture | Private Sector |
| GreenPath Energy Ltd | Private Sector |
| GreenPowerTek International Limited | Private Sector |
| Greenway Ecodevelopment | Private Sector |
| Greka Energy | Private Sector |
| Grit Infotech Pvt Ltd | Private Sector |
| Grupo Empresarial Energia y Medio Ambiente | Private Sector |
| GT Environmental Finance, LLC | Financial Institution |
| Gulf Coast Environmental Systems LLC | Private Sector |
| Haiti International Business Center | Private Sector |
| Halcrow Consulting India Ltd | Private Sector |
| Hanoi University of Science and Technology | University |
| Hanover Co. | Private Sector |
| Hartowijaya Pty Ltd | Private Sector |
| Harworth Energy Ltd | Private Sector |
| Harzyn Nuruu Mongolia | Private Sector |
| HAZTEC | Private Sector |
| HCS Group, Inc. | Private Sector |
| Heath Consultants Inc. | Private Sector |
| HPIC | Private Sector |
| HR Green | Private Sector |
| HY-BON Engineering Company, Inc. | Private Sector |
| IACX Energy | Private Sector |
| ICECAP Ltd. | Private Sector |
| ICF International (ICF) | Contractor |
| IHT | Other |
| IMW Industries Ltd. | Private Sector |
| India Ministry of Petroleum and Natural Gas | Government |
| Indian Institute of Sustainable Development | Other |
| Industrial Technology Research Institute | Other |
| Industry Support Systems Limited | Private Sector |
| Infrastructure Development Finance Company Ltd | Financial Institution |
| INL | Research |
| Innovative Energy, Inc. | Private Sector |
| Institute for Environmental Management, Inc. | Other |
| Institute for Environmental Studies | Research |
| Insultech | Private Sector |
| International Eco-Rescue | Private Sector |
| International Energy Agency | Other |
| International Institute for Applied Systems Analysis (IIASA) | Other |
| International Utility Efficiency Partnerships, Inc | Private Sector |
| Intertranstechno FZC | Private Sector |
| Irbaris | Private Sector |
| IRT Consult Inc. | Private Sector |
| ISWA | Other |
| ITT Corporation | Private Sector |
| Jamia Millia Islamia University, New Delhi | Research |
| JAPAN NUS Co., Ltd. | Research |
| Japan Resouces Dept., JCOAL | Research |
| JGC Corporation | Other |
| John Zinc Company, LLC | Private Sector |
| Kaifa Performa Kapital | NGO |
| Kalima Capital | Financial Institution |
| Karadeniz Technical University, Mining and Engineering Department | Research |
| Kassinga (W.A.), Inc. | Financial Institution |
| Kazakhstan Trade Consultants | Private Sector |
| KBS Certification Services Pvt Ltd | Private Sector |
| KCI Technologies, Inc. | Private Sector |
| Kestrel Horizons LLC | Private Sector |
| KINEK Ltd | Private Sector |
| Knolle Magnetrans | Private Sector |
| KOE Environmental Consultancy, Inc. | Private Sector |
| Korea National Oil Corporation | Government |
| Kraft Power | Private Sector |
| Kwality Boot House | Private Sector |
| Lakes Environmental | Research |
| Lanco Group | Private Sector |
| Leak Finder, Inc. | Private Sector |
| Leak Surveys, Inc. | Private Sector |
| LFG Technologies, Inc. | Private Sector |
| LG International Corp. | Private Sector |
| LI-COR Biosciences | Private Sector |
| LiDAR Services International Inc. | Private Sector |
| Linde LLC | Private Sector |
| Los Gatos Research | Private Sector |
| Louis Berger Group | Private Sector |
| M & E Energy Consulting Ltd | Private Sector |
| M/S TCE Consulting Engineers Ltd. | Private Sector |
| Mack Glass LLC | Private Sector |
| Macquarie Bank Limited | Financial Institution |
| Magenta Global Pte Ltd | Private Sector |
| Magic Green Solutions | Private Sector |
| Mailhem Engineers Pvt Ltd | Private Sector |
| Managing Emissions Pvt Ltd | Private Sector |
| Maq Energy Services | Private Sector |
| Marshall Miller & Associates, Inc. | Private Sector |
| Martins & Spadotto Society of Lawyers | Private Sector |
| Mavi Consultants | Private Sector |
| McLellan and Partners Ltd | Private Sector |
| Membrane Technology and Research, Inc. | Private Sector |
| Mercator Lines Ltd. | Private Sector |
| Meru Kapital Pvt.Ltd. | Financial Institution |
| Merzbach Group, LLC | Private Sector |
| Methane Management | Private Sector |
| Methane to Users Cooperative Ltd. (M2U Coop) | Private Sector |
| Metro Waste Handling Pvt. Ltd. | Private Sector |
| MGM International | Private Sector |
| Micro Turbo SIA | Private Sector |
| Minerales Monclova, S.A. de C.V. (MIMOSA) | Private Sector |
| Minerals Management Service | Government |
| Mission Point Capital Partners | Private Sector |
| Mitchell Drilling | Private Sector |
| Mitchell Energy Group | Private Sector |
| Mitsubishi Heavy Industries, Ltd. | Private Sector |
| MJ Consult LTDA. | Private Sector |
| MM Aqua | Private Sector |
| MotivEarth, LLC | Private Sector |
| MTM Capital Partners Limited | Financial Institution |
| MVC, Inc. | Private Sector |
| MWM GmbH | Private Sector |
| My Africa | Research |
| National Association of Regulatory Utility Commissioners (NARUC) | Other |
| National Environmental Engineering Research Institute (NEERI) | Research |
| National University of Science & Technology (NUST) | Research |
| New Brunswick Department of Energy | Government |
| New Energy & Industrial Technology Development Org | Other |
| New Energy Capital Invest | Financial Institution |
| New Energy Solutions | Private Sector |
| Niko Consult Nigeria Ltd | Private Sector |
| Nippon Steel Corporation | Private Sector |
| NL Agency | Government |
| North American World Trade, Ltd. | Private Sector |
| Northeast Energy Systems | Private Sector |
| Northeast Oklahoma Technologies, Inc. | Private Sector |
| Nouveau Energy Management Services | Private Sector |
| Novena University | University |
| NPB Associates | Private Sector |
| nxG Energy | Private Sector |
| Occidental Petroleum Corporation (Oxy) | Private Sector |
| Offsets Harvest Corp | Financial Institution |
| Offsetters Clean Technology Inc. | Private Sector |
| Ogin Biogas B.V. | Private Sector |
| Ogooue Global, LLC | Private Sector |
| Oil Gas CBM Services Pty Ltd | Private Sector |
| Oil Production Research Inst. ShengLi Oil Field | Government |
| OLEEV Group | Private Sector |
| Optimum Gem Products | Private Sector |
| Orbeo | Private Sector |
| Organic Power Ltd | Private Sector |
| Organic Waste Technologies (HK) Limited (OWT) | Private Sector |
| Organics Group plc | Private Sector |
| OriGen Climate Partners | Private Sector |
| ORVECON | Private Sector |
| Osaka Gas Co., Ltd | Private Sector |
| OTA Associates | Private Sector |
| Pact, Inc. | Other |
| Pais Minero | Research |
| Pakways | Other |
| Pan African Vision for the Environment(PAVE) | Other |
| Paradigm Biogas Company, LLC | Private Sector |
| PARENIN | Private Sector |
| Parhelion Underwriting Ltd | Private Sector |
| Pathways of Hope, Inc. | Research |
| Perspectives Climate Change | Private Sector |
| Petroland Nigeria Limited | Private Sector |
| Petroleum Club of Romania | Other |
| Petroleum Technology Alliance Canada (PTAC) | Other |
| Petrolinvest DD | Private Sector |
| Petromin Resources Ltd. | Private Sector |
| Picarro, Inc. | Private Sector |
| PICCDM | Private Sector |
| Pilot International LTD. | Private Sector |
| PK Ores Private Ltd. | Financial Institution |
| Plant Process Equipment Inc. | Private Sector |
| PLURITEC | Private Sector |
| Point Carbon | Private Sector |
| Powergen Technical Services Pvt. Ltd. | Research |
| PricewaterhouseCoopers Pvt Ltd | Private Sector |
| Private Scientific, Technical, Methodical and Healthing Centre "AVATARA" | Private Sector |
| Promigas S.A. ESP | Private Sector |
| PT Tunnel Mining Indonesia | Private Sector |
| Quality Tonnes | Research |
| Quanelle, LLC | Private Sector |
| Quantum Dynamics Inc. | Private Sector |
| Queensland Resource Council | Other |
| Quest Integrated | Research |
| QuestAir Technologies Inc. | Private Sector |
| Questor Technology Inc. | Private Sector |
| Random Dynamic Resources Ltd | Private Sector |
| Raven Engineered Films | Private Sector |
| Raven Knight | Private Sector |
| RBR - Rede Brasil de Reciclados | Private Sector |
| Reliance Industries Limited | Private Sector |
| Remuch Energy, Inc. | Private Sector |
| RenGen Energy | Private Sector |
| Research Institute for Humanity and Nature | Research |
| Resource Capital Limited | Other |
| Retech Energy Co.Ltd. | Private Sector |
| RichBio Sdn Bhd | Private Sector |
| Rio Tinto Coal Australia | Private Sector |
| Riverstone Environmental Sdn Bhd | Private Sector |
| RNK Capital LLC | Private Sector |
| Ro-Flo Compressors, LLC | Private Sector |
| Rodrigo S. F. Crespi | Research |
| Rolls-Royce | Private Sector |
| Rompré & associés | Private Sector |
| RSBG Inc | Private Sector |
| Ruby Canyon Engineering, Inc.(RCE) | Private Sector |
| Run Energy LP | Private Sector |
| Rwanda Environment Project | Other |
| RWTH Aachen University | Research |
| Ryerson, Master and Associates, Inc | Private Sector |
| Sagacity, Inc | Private Sector |
| Sage Environmental Consulting, LP | Private Sector |
| Satyam Inds Pvt. ltd. | Private Sector |
| SBGI | Other |
| Scientific Drilling | Private Sector |
| Scottish Hydrogen & Fuel Cell Association | Private Sector |
| SCS Engineers | Contractor |
| Sealweld Corporation | Private Sector |
| SEE Tech Solution Pvt. Ltd | Private Sector |
| Separating Waste Solutions cc | Research |
| Shanghai BCCY New Power Industry Co. Ltd | Private Sector |
| Shanghai Haiting Environmental Co. Ltd | Private Sector |
| Shanghai Iser Electromechanical Equipment Co, Ltd | Private Sector |
| Shanghai Zoom Intelligence Co., Ltd. | Private Sector |
| Sharp Electrical Services, Inc. | Private Sector |
| Shaw Group | Private Sector |
| Siento Energy Investment Consulting Co., Ltd | Private Sector |
| Silk Road Capital Partners | Private Sector |
| Siluria Technologies, Inc. | Private Sector |
| SIMARS M SA DE CV | Private Sector |
| SIMATEL DEL ECUADOR | Research |
| Sindicatum Carbon Capital | Financial Institution |
| SinoEnergy Development | NGO |
| Sistemas de Energia Internacional SA de CV (SEISA) | Private Sector |
| Sol-Air Systems | Private Sector |
| Solar Turbines Incorporated | Private Sector |
| Solusi Mitra Integrasi Teknologi | Private Sector |
| SOPAN O & M Co. Pvt. Ltd. | Private Sector |
| South Africa Department of Minerals and Energy | Government |
| South Coast Products/Chemola | Private Sector |
| South Pole Carbon Asset Management Ltd. | Private Sector |
| Spectral, Inc. | Private Sector |
| STEAG encotec India Pvt Ltd | Private Sector |
| Stratos Multimedia LLC | Private Sector |
| Sunkissed Group | Private Sector |
| Superior Management Corp. | Private Sector |
| Suraj Inamdar Business Consortium | Private Sector |
| Synchro Energy Ltd. | Private Sector |
| Syrinix Ltd | Private Sector |
| Taiwo Adewole and Associates | Research |
| Tara Technology Systems | Private Sector |
| Technofin Consultants Private Limited | Private Sector |
| TECNA S.A. | Private Sector |
| TerraVerdae BioWorks Inc. | Private Sector |
| TerraWest Energy Corp. | Private Sector |
| Tesa Zenith Company Limited | Private Sector |
| Tetra Tech, Inc. | Contractor |
| TFS | Financial Institution |
| The Autonomous Regional Government of the Atlantic South | Government |
| The Business Alliance | Private Sector |
| The Climate Change Company | Research |
| The Corporate Council on Africa | Other |
| The Gas Institute of National Academy of Sciences of Ukraine | Research |
| The Groundwater Foundation | Other |
| The LEVON Group, LLC | Private Sector |
| The University of Tokyo - Institute of Environmental Studies | Research |
| The World Bank | Financial Institution |
| Thiess Pty Ltd | Private Sector |
| Thimun | Other |
| TIC Attorneys at Law | Private Sector |
| TKS Control Systems | Private Sector |
| Torresolar SRL | Private Sector |
| Toyo Engineering Corporation | Private Sector |
| Trans-Atlantic Environmental, Inc. (TAE) | NGO |
| Transparency and Economic Development Initiatives (TEDI) | NGO |
| Tri County Refrigeration Inc | Private Sector |
| Tri-Chandra College | Research |
| Triumph International Enterprises LLC | Private Sector |
| Trolex Ltd | Private Sector |
| TrueStar International, Ltd. | Private Sector |
| Turnas Energy Systems, Ltd (TES) | Private Sector |
| Tuthill Vacuum & Blower Systems | Private Sector |
| Tú Transformas | Private Sector |
| TÜV-SÜD Industry Service / Carbon Management | Private Sector |
| U.N. Dept. of Economic and Social Affairs | Government |
| U.S. Commercial Service | Government |
| U.S. Dept. of Commerce, Office of Energy | Government |
| U.S. Senate Commerce Committee | Private Sector |
| Uglemetan | NGO |
| Ukraine Agency for Rational Energy Use and Ecology (ARENA-ECO) | NGO |
| United Nations Development Programme | Other |
| United Securities | Financial Institution |
| Universal Well Site Solutions Inc. | Private Sector |
| Universidad Tecnica Federico Santa Maria | Research |
| University EAN | University |
| University of Greenwich | Research |
| University of South Florida | Research |
| University of Tehran | Research |
| UPEGAZ | Government |
| URS Corporation | Private Sector |
| Val-Tex | Private Sector |
| Valerus Compression L.P. | Private Sector |
| Vallmitjana & Company Consulting Services | Private Sector |
| Vayam Technologies Ltd | Private Sector |
| Venture Energy | Private Sector |
| Verdeo Group | Private Sector |
| Via Expo | Private Sector |
| Vietnam Institute of Meteorology, Hydrology and Environment | Research |
| Vijayaillu | Other |
| Vision Techniques Ltd | Private Sector |
| Vitol Ltd | Private Sector |
| W&Y Environmental International Inc. | Private Sector |
| Walz Resources Corp. | Private Sector |
| Waste To Energy, Inc. | Private Sector |
| Wastecorp Pumps LLC | Private Sector |
| Winrock International | NGO |
| World Alliance for Decentralized Energy | Other |
| World Leaders Symposium Committee | Other |
| Yonder Investment | Private Sector |
| Zero Emissions Technologies, S.A. | Private Sector |
