| 1 (7) | United States Department of Agriculture | USA |  |
| 2 (29) | Doe Joint Genome Institute | USA | |
| 3 (45) | NASA Goddard Space Flight Center | USA | |
| 4 (84) | United States Geological Survey | USA | |
| 5 (89) | National Aeronautics and Space Administration * | USA | |
| 6 (120) | National Oceanic and Atmospheric Administration | USA | |
| 7 (164) | Lawrence Berkeley National Laboratory * | USA | |
| 8 (176) | Agriculture and Agri-Food Canada | CAN | |
| 9 (180) | Smithsonian Institution * | USA | |
| 10 (188) | Jet Propulsion Laboratory | USA | |
| 11 (300) | Joint BioEnergy Institute | USA | |
| 12 (333) | National Center for Atmospheric Research | USA | |
| 13 (405) | U.S. Department of Energy * | USA | |
| 14 (426) | National Renewable Energy Laboratory | USA | |
| 15 (447) | National Research Council Canada * | CAN | |
| 16 (486) | Lawrence Livermore National Laboratory * | USA | |
| 17 (491) | National Institute of Standards and Technology * | USA | |
| 18 (510) | Brookhaven National Laboratory * | USA | |
| 19 (522) | Oak Ridge National Laboratory | USA | |
| 20 (535) | US Food and Drug Administration | USA | |
| 21 (628) | NASA Ames Research Center | USA | |
| 22 (648) | Environment Canada | CAN | |
| 23 (739) | NASA Johnson Space Center | USA | |
| 24 (755) | Smithsonian National Museum of Natural History | USA | |
| 25 (860) | American Museum of Natural History | USA | |
| 26 (903) | Argonne National Laboratory * | USA | |
| 27 (905) | The Connecticut Agricultural Experiment Station | USA | |
| 28 (908) | Smithsonian Environmental Research Center | USA | |
| 29 (915) | US Environmental Protection Agency | USA | |
| 30 (1011) | Smithsonian Conservation Biology Institute | USA | |
| 31 (1066) | Fisheries and Oceans Canada * | CAN | |
| 32 (1176) | Los Alamos National Laboratory * | USA | |
| 33 (1204) | National Park Service, United States | USA | |
| 34 (1240) | U.S. Army * | USA | |
| 35 (1254) | Oak Ridge Institute for Science and Education | USA | |
| 36 (1323) | Pacific Northwest National Laboratory * | USA | |
| 37 (1405) | Natural Resources Canada | CAN | |
| 38 (1602) | Florida Museum of Natural History | USA | |
| 39 (1620) | Center for Food Safety and Applied Nutrition | USA | |
| 40 (1709) | Environmental Molecular Sciences Laboratory | USA | |
| 41 (2036) | United States Fish and Wildlife Service | USA | |
| 42 (2165) | University of Maryland, Center for Environmental Science | USA | |
| 43 (2401) | Field Museum Natural History | USA | |
| 44 (2539) | U.S. Air Force | USA | |
| 45 (2570) | Missouri Botanical Garden | USA | |
| 46 (2916) | Natural History Museum of los Angeles County | USA | |
| 47 (3137) | US National Science Foundation * | USA | |
| 48 (3466) | New York Botanical Garden | USA | |
| 49 (3477) | Bedford Institute of Oceanography | CAN | |
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