| 1 (401) | United States Department of Agriculture | USA |  |
| 2 (487) | Oak Ridge National Laboratory | USA | |
| 3 (563) | U.S. Department of Energy * | USA | |
| 4 (585) | United States Geological Survey | USA | |
| 5 (586) | Lawrence Berkeley National Laboratory * | USA | |
| 6 (642) | Environment Canada | CAN | |
| 7 (666) | National Aeronautics and Space Administration * | USA | |
| 8 (718) | National Research Council Canada * | CAN | |
| 9 (755) | Lawrence Livermore National Laboratory * | USA | |
| 10 (767) | American Museum of Natural History | USA | |
| 11 (775) | Oak Ridge Institute for Science and Education | USA | |
| 12 (835) | Agriculture and Agri-Food Canada | CAN | |
| 13 (870) | National Oceanic and Atmospheric Administration | USA | |
| 14 (899) | Smithsonian Institution * | USA | |
| 15 (910) | National Renewable Energy Laboratory | USA | |
| 16 (936) | US Environmental Protection Agency | USA | |
| 17 (938) | Argonne National Laboratory * | USA | |
| 18 (970) | National Center for Atmospheric Research | USA | |
| 19 (976) | National Institute of Standards and Technology * | USA | |
| 20 (1059) | Natural Resources Canada | CAN | |
| 21 (1063) | Smithsonian National Museum of Natural History | USA | |
| 22 (1105) | US Food and Drug Administration | USA | |
| 23 (1200) | Pacific Northwest National Laboratory * | USA | |
| 24 (1461) | U.S. Air Force | USA | |
| 25 (1522) | Los Alamos National Laboratory * | USA | |
| 26 (1789) | Field Museum Natural History | USA | |
| 27 (2008) | U.S. Army * | USA | |
| 28 (2034) | American Institutes for Research | USA | |
| 29 (2293) | Westat Corp | USA | |
| 30 (2515) | US National Science Foundation * | USA | |
| 31 (3677) | Nemours Children's Health System | USA | |
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