| 1 (41) | United States Department of Agriculture | USA |  |
| 2 (57) | United States Geological Survey | USA | |
| 3 (58) | Joint BioEnergy Institute | USA | |
| 4 (94) | National Renewable Energy Laboratory | USA | |
| 5 (104) | SLAC National Accelerator Laboratory | USA | |
| 6 (134) | National Oceanic and Atmospheric Administration | USA | |
| 7 (142) | The Connecticut Agricultural Experiment Station | USA | |
| 8 (183) | National Aeronautics and Space Administration * | USA | |
| 9 (207) | Lawrence Berkeley National Laboratory * | USA | |
| 10 (223) | Brookhaven National Laboratory * | USA | |
| 11 (230) | US Environmental Protection Agency | USA | |
| 12 (242) | Sandia National Laboratories, New Mexico | USA | |
| 13 (299) | Lawrence Livermore National Laboratory * | USA | |
| 14 (323) | Oak Ridge National Laboratory | USA | |
| 15 (333) | Jet Propulsion Laboratory | USA | |
| 16 (337) | NASA Goddard Institute for Space Studies | USA | |
| 17 (345) | U.S. Department of Energy * | USA | |
| 18 (408) | National Energy Technology Laboratory | USA | |
| 19 (428) | Argonne National Laboratory * | USA | |
| 20 (464) | NASA Goddard Space Flight Center | USA | |
| 21 (476) | National High Magnetic Field Laboratory | USA | |
| 22 (521) | Pacific Northwest National Laboratory * | USA | |
| 23 (561) | National Center for Atmospheric Research | USA | |
| 24 (567) | Smithsonian Institution * | USA | |
| 25 (647) | US Food and Drug Administration | USA | |
| 26 (694) | National Institute of Standards and Technology * | USA | |
| 27 (762) | NASA Ames Research Center | USA | |
| 28 (778) | NASA Langley Research Center | USA | |
| 29 (893) | Oak Ridge Institute for Science and Education | USA | |
| 30 (904) | NASA Marshall Space Flight Center | USA | |
| 31 (932) | Center for Food Safety and Applied Nutrition | USA | |
| 32 (945) | U.S. Army * | USA | |
| 33 (988) | Missouri Botanical Garden | USA | |
| 34 (1001) | Los Alamos National Laboratory * | USA | |
| 35 (1070) | Smithsonian Environmental Research Center | USA | |
| 36 (1101) | US Naval Research Laboratory | USA | |
| 37 (1105) | Smithsonian National Museum of Natural History | USA | |
| 38 (1142) | Smithsonian Conservation Biology Institute | USA | |
| 39 (1173) | National Park Service, United States | USA | |
| 40 (1244) | U.S. Air Force | USA | |
| 41 (1356) | American Museum of Natural History | USA | |
| 42 (1401) | NASA Stennis Space Center | USA | |
| 43 (1540) | Idaho National Laboratory * | USA | |
| 44 (1670) | Savannah River National Laboratory | USA | |
| 45 (1814) | US National Science Foundation * | USA | |
| 46 (1897) | Environmental Molecular Sciences Laboratory | USA | |
| 47 (1908) | United States Fish and Wildlife Service | USA | |
| 48 (2148) | Florida Museum of Natural History | USA | |
| 49 (2378) | University of Maryland, Center for Environmental Science | USA | |
| 50 (2386) | Natural History Museum of los Angeles County | USA | |
| 51 (3066) | Field Museum Natural History | USA | |
| 52 (4030) | Inter-American Development Bank | USA | |
| 53 (4128) | New York Botanical Garden | USA | |
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