| 1 (432) | US Food and Drug Administration | USA |  |
| 2 (580) | National Research Council Canada * | CAN | |
| 3 (588) | National Institute of Standards and Technology * | USA | |
| 4 (704) | Center for Devices and Radiological Health | USA | |
| 5 (710) | Lawrence Berkeley National Laboratory * | USA | |
| 6 (759) | Douglas Mental Health University Institute | CAN | |
| 7 (806) | Argonne National Laboratory * | USA | |
| 8 (940) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 9 (1005) | Oak Ridge National Laboratory | USA | |
| 10 (1058) | Canadian Nuclear Laboratories | CAN | |
| 11 (1260) | U.S. Department of Energy * | USA | |
| 12 (1342) | National Aeronautics and Space Administration * | USA | |
| 13 (1526) | U.S. Army * | USA | |
| 14 (1552) | U.S. Air Force | USA | |
| 15 (1624) | Los Alamos National Laboratory * | USA | |
| 16 (1701) | Pacific Northwest National Laboratory * | USA | |
| 17 (1925) | Lawrence Livermore National Laboratory * | USA | |
| 18 (1941) | Nemours Children's Health System | USA | |
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