| 1 (13) | United States Department of Agriculture | USA |  |
| 2 (19) | United States Geological Survey | USA | |
| 3 (45) | Smithsonian Institution * | USA | |
| 4 (100) | National Oceanic and Atmospheric Administration | USA | |
| 5 (188) | US Food and Drug Administration | USA | |
| 6 (222) | Lawrence Berkeley National Laboratory * | USA | |
| 7 (238) | Smithsonian National Museum of Natural History | USA | |
| 8 (256) | Doe Joint Genome Institute | USA | |
| 9 (276) | Oak Ridge National Laboratory | USA | |
| 10 (307) | U.S. Department of Energy * | USA | |
| 11 (350) | Environment Canada | CAN | |
| 12 (363) | Lawrence Livermore National Laboratory * | USA | |
| 13 (406) | National Aeronautics and Space Administration * | USA | |
| 14 (437) | Agriculture and Agri-Food Canada | CAN | |
| 15 (439) | The Connecticut Agricultural Experiment Station | USA | |
| 16 (445) | Smithsonian Conservation Biology Institute | USA | |
| 17 (450) | American Museum of Natural History | USA | |
| 18 (455) | Fisheries and Oceans Canada * | CAN | |
| 19 (469) | Jet Propulsion Laboratory | USA | |
| 20 (510) | Smithsonian Environmental Research Center | USA | |
| 21 (560) | National Park Service, United States | USA | |
| 22 (591) | NASA Goddard Space Flight Center | USA | |
| 23 (606) | United States Fish and Wildlife Service | USA | |
| 24 (755) | US Environmental Protection Agency | USA | |
| 25 (867) | Florida Museum of Natural History | USA | |
| 26 (914) | Oak Ridge Institute for Science and Education | USA | |
| 27 (945) | NASA Ames Research Center | USA | |
| 28 (1004) | Pacific Northwest National Laboratory * | USA | |
| 29 (1025) | Natural Resources Canada | CAN | |
| 30 (1201) | U.S. Army * | USA | |
| 31 (1216) | Field Museum Natural History | USA | |
| 32 (1217) | Missouri Botanical Garden | USA | |
| 33 (1553) | Natural History Museum of los Angeles County | USA | |
| 34 (1555) | University of Maryland, Center for Environmental Science | USA | |
| 35 (1721) | Los Alamos National Laboratory * | USA | |
| 36 (2033) | New York Botanical Garden | USA | |
| 37 (2138) | Bedford Institute of Oceanography | CAN | |
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