| 1 (13) | Sandia National Laboratories, California | USA |  |
| 2 (14) | Joint BioEnergy Institute | USA | |
| 3 (34) | SLAC National Accelerator Laboratory | USA | |
| 4 (35) | United States Department of Agriculture | USA | |
| 5 (77) | United States Geological Survey | USA | |
| 6 (104) | Sandia National Laboratories, New Mexico | USA | |
| 7 (110) | Lawrence Livermore National Laboratory * | USA | |
| 8 (117) | Lawrence Berkeley National Laboratory * | USA | |
| 9 (124) | National Renewable Energy Laboratory | USA | |
| 10 (145) | Brookhaven National Laboratory * | USA | |
| 11 (166) | National Oceanic and Atmospheric Administration | USA | |
| 12 (167) | National Aeronautics and Space Administration * | USA | |
| 13 (178) | National Center for Atmospheric Research | USA | |
| 14 (208) | Oak Ridge National Laboratory | USA | |
| 15 (234) | US Environmental Protection Agency | USA | |
| 16 (274) | Pacific Northwest National Laboratory | USA | |
| 17 (283) | Argonne National Laboratory | USA | |
| 18 (399) | NASA Goddard Institute for Space Studies | USA | |
| 19 (434) | NASA Goddard Space Flight Center | USA | |
| 20 (485) | Jet Propulsion Laboratory | USA | |
| 21 (508) | Idaho National Laboratory | USA | |
| 22 (529) | National High Magnetic Field Laboratory | USA | |
| 23 (562) | Smithsonian Institution * | USA | |
| 24 (641) | U.S. Department of Energy * | USA | |
| 25 (698) | Los Alamos National Laboratory * | USA | |
| 26 (836) | National Energy Technology Laboratory | USA | |
| 27 (990) | American Museum of Natural History | USA | |
| 28 (1027) | NASA Ames Research Center | USA | |
| 29 (1033) | World Bank United States | USA | |
| 30 (1048) | US Food and Drug Administration | USA | |
| 31 (1054) | National Center for Toxicological Research | USA | |
| 32 (1099) | Smithsonian National Museum of Natural History | USA | |
| 33 (1103) | National Institute of Standards and Technology * | USA | |
| 34 (1124) | Oak Ridge Institute for Science and Education | USA | |
| 35 (1232) | NASA Marshall Space Flight Center | USA | |
| 36 (1260) | NASA Langley Research Center | USA | |
| 37 (1276) | US Naval Research Laboratory | USA | |
| 38 (1452) | Smithsonian Conservation Biology Institute | USA | |
| 39 (1667) | U.S. Army * | USA | |
| 40 (1768) | Smithsonian Environmental Research Center | USA | |
| 41 (1931) | Field Museum Natural History | USA | |
| 42 (2009) | Center for Food Safety and Applied Nutrition | USA | |
| 43 (2175) | University of Maryland, Center for Environmental Science | USA | |
| 44 (2488) | Missouri Botanical Garden | USA | |
| 45 (2564) | United States Fish and Wildlife Service | USA | |
| 46 (2800) | US National Science Foundation * | USA | |
| 47 (3579) | U.S. Air Force | USA | |
| 48 (3648) | New York Botanical Garden | USA | |
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