| 1 (33) | National Center for Biotechnology Information | USA |  |
| 2 (108) | Lawrence Berkeley National Laboratory * | USA | |
| 3 (156) | Joint BioEnergy Institute | USA | |
| 4 (159) | Sandia National Laboratories, California | USA | |
| 5 (174) | United States Department of Agriculture | USA | |
| 6 (236) | Doe Joint Genome Institute | USA | |
| 7 (250) | SLAC National Accelerator Laboratory | USA | |
| 8 (287) | Lawrence Livermore National Laboratory * | USA | |
| 9 (288) | Sandia National Laboratories, New Mexico | USA | |
| 10 (416) | Center for Biologics Evaluation and Research | USA | |
| 11 (445) | Argonne National Laboratory | USA | |
| 12 (487) | US Food and Drug Administration | USA | |
| 13 (501) | Center for Drug Evaluation & Research | USA | |
| 14 (527) | Pacific Northwest National Laboratory | USA | |
| 15 (599) | Oak Ridge National Laboratory | USA | |
| 16 (638) | Brookhaven National Laboratory * | USA | |
| 17 (640) | National Institute of Standards and Technology * | USA | |
| 18 (652) | National Renewable Energy Laboratory | USA | |
| 19 (674) | Los Alamos National Laboratory * | USA | |
| 20 (860) | Center for Devices and Radiological Health | USA | |
| 21 (927) | U.S. Army * | USA | |
| 22 (984) | Douglas Mental Health University Institute | CAN | |
| 23 (1163) | U.S. Department of Energy * | USA | |
| 24 (1170) | National Research Council Canada * | CAN | |
| 25 (1327) | NASA Ames Research Center | USA | |
| 26 (1329) | US Naval Research Laboratory | USA | |
| 27 (1504) | National Center for Toxicological Research | USA | |
| 28 (1545) | Nemours Children's Health System | USA | |
| 29 (1603) | National Aeronautics and Space Administration * | USA | |
| 30 (1677) | Ames Laboratory | USA | |
| 31 (1688) | US Environmental Protection Agency | USA | |
| 32 (1706) | U.S. Air Force | USA | |
| 33 (1732) | Agriculture and Agri-Food Canada | CAN | |
| 34 (1773) | National High Magnetic Field Laboratory | USA | |
| 35 (2105) | National Oceanic and Atmospheric Administration | USA | |
| 36 (2121) | Smithsonian Institution * | USA | |
| 37 (2420) | NASA Goddard Space Flight Center | USA | |
| 38 (2498) | NASA Johnson Space Center | USA | |
| 39 (2763) | United States Geological Survey | USA | |
| 40 (2853) | Smithsonian National Museum of Natural History | USA | |
| 41 (2897) | Natural Resources Canada | CAN | |
| 42 (2966) | American Museum of Natural History | USA | |
| 43 (3038) | Jet Propulsion Laboratory | USA | |
| 44 (3360) | Smithsonian Environmental Research Center | USA | |
| 45 (3402) | Oak Ridge Institute for Science and Education | USA | |
| 46 (3405) | Field Museum Natural History | USA | |
| 47 (3866) | Environment Canada | CAN | |
| 48 (3974) | New York Botanical Garden | USA | |
| 49 (3989) | University of Maryland, Center for Environmental Science | USA | |
| 50 (4000) | Center for Food Safety and Applied Nutrition | USA | |
| 51 (4110) | Smithsonian Conservation Biology Institute | USA | |
| 52 (4629) | United States Fish and Wildlife Service | USA | |
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