| Organization [sort] | Member Type [sort] |
| AC Transit | Government/Non-Profit Member |
| AG/ENA | Small Business Member |
| Air Liquide America, L.P. | Industry Member |
| Air Products and Chemicals, Inc. | Sustaining Member |
| University of Albany - Albany Nanotech Energy and Environment Technology Application Center | University/Education Member |
| Alternate Energy Corporation | Small Business Member |
| American Honda Motor Company, Inc. | Industry Member |
| ARES Corporation | Industry Member |
| Arizona Public Service Company | Sustaining Member |
| Electric Power Research Institute | Honorary Member |
| Proton Energy Systems, Inc. | Industry Member |
| Avalence LLC | Small Business Member |
| Bain, Addison | Honorary Member |
| Ballard Power Systems | Industry Member |
| BMW of North America, Inc. | Sustaining Member |
| BOC | Sustaining Member |
| BP | Sustaining Member |
| Cabot Fuel Cells | Industry Member |
| California Air Resources Board | Honorary Member |
| Lloyd, Alan C. | Honorary Member |
| Canadian Hydrogen Energy Company | Small Business Member |
| Chevron | Sustaining Member |
| Clean Energy Fuels Corporation | Small Business Member |
| Collier Technologies, Inc. | Small Business Member |
| CSA America, Inc. | University/Education Member |
| DaimlerChrysler Corporation | Industry Member |
| DTE Energy | Industry Member |
| Economic Development Partnership | Government/Non-Profit Member |
| Energy Conversion Devices, Inc. | Industry Member |
| Engineering Advancement Association of Japan | Government/Non-Profit Member |
| Entergy Nuclear | Sustaining Member |
| University of Central Florida - Florida Solar Energy Center | University/Education Member |
| AREVA NP, Inc. | Sustaining Member |
| Tergo Power, LLC | Small Business Member |
| Freesen & Partner GmbH | Small Business Member |
| Gas Technology Institute (GTI) | University/Education Member |
| GE Global Research | Sustaining Member |
| General Atomics | Industry Member |
| General Motors Corporation | Sustaining Member |
| H2Gen Innovations, Inc. | Small Business Member |
| H2scan Corporation | Small Business Member |
| Hydrogen 2000, Inc. | University/Education Member |
| Hydrogen Power Inc. | Small Business Member |
| Hydrogenics Corporation | Industry Member |
| HyRadix, Inc. | Small Business Member |
| Idaho National Laboratory | Government/Non-Profit Member |
| Infinity Fuel Cell and Hydrogen, LLC | Small Business Member |
| Intelligent Energy | Small Business Member |
| ISE Corporation | Small Business Member |
| Iwatani International Corporation | Industry Member |
| Jadoo Power Systems, LLC | Small Business Member |
| Kettering University - Center for Fuel Cell Systems & Powertrain Integration | University/Education Member |
| Linde AG | Sustaining Member |
| M.R.S. Enterprises | University/Education Member |
| Millennium Cell | Small Business Member |
| National Aeronautics & Space Administration | Honorary Member |
| National Renewable Energy Laboratory | Government/Non-Profit Member |
| Nebraska Public Power District | Industry Member |
| Neighborhood Energy | Small Business Member |
| Netozoic | University/Education Member |
| New York Power Authority | Industry Member |
| NextEnergy | Government/Non-Profit Member |
| Norsk Hydro Electrolysers, AS | Small Business Member |
| North of England Inward Investment Agency | Small Business Member |
| Norwegian Hydrogen Forum | University/Education Member |
| Oak Ridge National Laboratory | Government/Non-Profit Member |
| Pacific Northwest National Laboratory | Government/Non-Profit Member |
| Pennsylvania State University - Hydrogen Energy Center (H2E) | University/Education Member |
| Plug Power | Industry Member |
| Praxair, Inc. | Sustaining Member |
| QuestAir Technologies, Inc. | Small Business Member |
| Rutgers, The State University of New Jersey - Center for Energy, Economic and Environmental Policy | University/Education Member |
| Sacramento Municipal Utility District | Industry Member |
| Sandia National Laboratories | Government/Non-Profit Member |
| Savannah River National Laboratory | Government/Non-Profit Member |
| Humboldt State University - Schatz Energy Research Center | University/Education Member |
| Schlumberger | Industry Member |
| Sentech, Inc. | Small Business Member |
| Shell Hydrogen, LLC | Sustaining Member |
| Solar Integrated Technologies | Industry Member |
| South Coast Air Quality Management District | Honorary Member |
| Southern California Edison Company | Industry Member |
| Southwest Research Institute | Government/Non-Profit Member |
| Sumitomo Corporation | Industry Member |
| Toyota Motor Sales, USA, Inc. | Sustaining Member |
| University of North Dakota - Energy and Environmental Research Center | University/Education Member |
| U.S. Department of Energy (DOE) | Honorary Member |
| Université du Québec à Trois-Rivières - Hydrogen Research Institute | University/Education Member |
| University of California, Davis - Institute for Transportation Studies | University/Education Member |
| University of Connecticut - Connecticut Global Fuel Cell Center | University/Education Member |
| University of Hawaii at Manoa - Natural Energy Institute | University/Education Member |
| University of Miami | University/Education Member |
| University of South Carolina | Sustaining Member |
| UTC Power | Industry Member |
| Virent Energy Systems | Small Business Member |
| Ztek Corporation | Small Business Member |
| Purdue University - Discovery Park | University/Education Member |
| Xcel Energy | Industry Member |
| South Carolina Research Authority | Government/Non-profit Member |
| Empower CES | Small Business Member |
| Global Renewable Energy | Small Business Member |
| Innovatek | Small Business Member |
| Powergen International | Small Business Member |
| U.S. Merchant Marine Academy - Alternative Power Program | University/Education Member |
| University of Nevada, Reno | University/Education Member |
| Swagelok Company | Industry Member |
| Nuvera Fuel Cells | Industry Member |
| Angstrom Power | Small Business Member |
| West Wind Works, LLC | Small Business Member |
| General Hydrogen Corporation | Small Business Member |
| ConocoPhillips | Sustaining Member |
| National Energy Technology Laboratory | Government/Non-Profit Member |
| HTS Enterprise | Small Business Member |
| Hydrogen Solar, LLC | Small Business Member |