| 1 (88) | US Food and Drug Administration | USA |  |
| 2 (226) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 3 (351) | Center for Drug Evaluation & Research | USA | |
| 4 (372) | National Research Council Canada * | CAN | |
| 5 (378) | U.S. Army * | USA | |
| 6 (488) | Center for Biologics Evaluation and Research | USA | |
| 7 (640) | United States Department of Agriculture | USA | |
| 8 (648) | Argonne National Laboratory * | USA | |
| 9 (708) | Center for Devices and Radiological Health | USA | |
| 10 (712) | Oak Ridge National Laboratory | USA | |
| 11 (753) | US Environmental Protection Agency | USA | |
| 12 (806) | Lawrence Berkeley National Laboratory * | USA | |
| 13 (1075) | National Institute of Standards and Technology * | USA | |
| 14 (1181) | U.S. Department of Energy * | USA | |
| 15 (1680) | National Center for Toxicological Research | USA | |
| 16 (1731) | Environment Canada | CAN | |
| 17 (1861) | Nemours Children's Health System | USA | |
| 18 (2498) | Oak Ridge Institute for Science and Education | USA | |
| 19 (2607) | Pacific Northwest National Laboratory * | USA | |
| 20 (3040) | Center for Food Safety and Applied Nutrition | USA | |
| 21 (3129) | U.S. Air Force | USA | |
| 22 (3262) | United States Geological Survey | USA | |
| 23 (3742) | Douglas Mental Health University Institute | CAN | |
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