| 1 (25) | SLAC National Accelerator Laboratory | USA |  |
| 2 (30) | United States Department of Agriculture | USA | |
| 3 (52) | Sandia National Laboratories, California | USA | |
| 4 (56) | Joint BioEnergy Institute | USA | |
| 5 (81) | National Renewable Energy Laboratory | USA | |
| 6 (85) | United States Geological Survey | USA | |
| 7 (136) | National Oceanic and Atmospheric Administration | USA | |
| 8 (181) | Brookhaven National Laboratory * | USA | |
| 9 (204) | Lawrence Livermore National Laboratory * | USA | |
| 10 (208) | Lawrence Berkeley National Laboratory * | USA | |
| 11 (222) | National Aeronautics and Space Administration * | USA | |
| 12 (249) | US Environmental Protection Agency | USA | |
| 13 (259) | Argonne National Laboratory * | USA | |
| 14 (304) | Sandia National Laboratories, New Mexico | USA | |
| 15 (320) | Oak Ridge National Laboratory | USA | |
| 16 (357) | Environment Canada | CAN | |
| 17 (393) | National Research Council Canada * | CAN | |
| 18 (398) | NASA Goddard Institute for Space Studies | USA | |
| 19 (400) | Environmental Molecular Sciences Laboratory | USA | |
| 19 (400) | Jet Propulsion Laboratory | USA | |
| 21 (406) | National Energy Technology Laboratory | USA | |
| 22 (429) | Pacific Northwest National Laboratory * | USA | |
| 23 (468) | U.S. Department of Energy * | USA | |
| 24 (508) | Smithsonian Institution * | USA | |
| 25 (517) | National Center for Atmospheric Research | USA | |
| 26 (556) | Agriculture and Agri-Food Canada | CAN | |
| 27 (580) | Idaho National Laboratory | USA | |
| 28 (669) | National Institute of Standards and Technology * | USA | |
| 29 (713) | Center for Food Safety and Applied Nutrition | USA | |
| 30 (726) | US Food and Drug Administration | USA | |
| 31 (770) | National High Magnetic Field Laboratory | USA | |
| 32 (821) | Smithsonian Conservation Biology Institute | USA | |
| 33 (958) | Los Alamos National Laboratory * | USA | |
| 34 (975) | Smithsonian Environmental Research Center | USA | |
| 35 (982) | Oak Ridge Institute for Science and Education | USA | |
| 36 (1108) | Fisheries and Oceans Canada * | CAN | |
| 37 (1121) | US Naval Research Laboratory | USA | |
| 38 (1124) | Smithsonian National Museum of Natural History | USA | |
| 39 (1221) | Natural Resources Canada | CAN | |
| 40 (1293) | American Museum of Natural History | USA | |
| 41 (1690) | National Center for Toxicological Research | USA | |
| 42 (1773) | NASA Goddard Space Flight Center | USA | |
| 43 (2025) | US National Science Foundation * | USA | |
| 44 (2113) | United States Fish and Wildlife Service | USA | |
| 45 (2173) | Missouri Botanical Garden | USA | |
| 46 (2274) | United States Agency for International Development United States | USA | |
| 47 (2391) | University of Maryland, Center for Environmental Science | USA | |
| 48 (2596) | NASA Marshall Space Flight Center | USA | |
| 49 (2661) | Field Museum Natural History | USA | |
| 50 (2752) | U.S. Air Force | USA | |
| 51 (2761) | U.S. Army * | USA | |
| 52 (2769) | NASA Ames Research Center | USA | |
| 53 (3446) | Bedford Institute of Oceanography | CAN | |
| 54 (3557) | NASA Langley Research Center | USA | |
| 55 (3561) | Fisheries and Oceans Canada Dartmouth | CAN | |
| 56 (3922) | New York Botanical Garden | USA | |
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