| 1 (41) | National Research Council Canada * | CAN |  |
| 2 (242) | US Food and Drug Administration | USA | |
| 3 (246) | Center for Biologics Evaluation and Research | USA | |
| 4 (284) | United States Department of Agriculture | USA | |
| 5 (358) | U.S. Army * | USA | |
| 6 (385) | US Environmental Protection Agency | USA | |
| 7 (388) | National Oceanic and Atmospheric Administration | USA | |
| 8 (593) | United States Geological Survey | USA | |
| 9 (617) | National Aeronautics and Space Administration * | USA | |
| 10 (707) | NASA Goddard Space Flight Center | USA | |
| 11 (731) | Jet Propulsion Laboratory | USA | |
| 12 (898) | U.S. Department of Energy * | USA | |
| 13 (901) | Environment Canada | CAN | |
| 14 (1136) | United States Agency for International Development United States | USA | |
| 15 (1297) | Center for Drug Evaluation & Research | USA | |
| 16 (1409) | Lawrence Berkeley National Laboratory * | USA | |
| 17 (1450) | Oak Ridge Institute for Science and Education | USA | |
| 18 (1575) | U.S. Air Force | USA | |
| 19 (1901) | Oak Ridge National Laboratory | USA | |
| 20 (2081) | Nemours Children's Health System | USA | |
| 21 (2329) | Pacific Northwest National Laboratory * | USA | |
| 22 (2344) | HealthPartners Institute | USA | |
| 23 (2597) | National Institute of Standards and Technology * | USA | |
| 24 (3007) | Douglas Mental Health University Institute | CAN | |
| 25 (3018) | Los Alamos National Laboratory * | USA | |
| 26 (3554) | Lawrence Livermore National Laboratory * | USA | |
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