| 1 (12) | United States Department of Agriculture | USA |  |
| 2 (21) | United States Geological Survey | USA | |
| 3 (28) | Smithsonian Institution * | USA | |
| 4 (80) | National Oceanic and Atmospheric Administration | USA | |
| 5 (138) | Lawrence Livermore National Laboratory * | USA | |
| 6 (143) | Lawrence Berkeley National Laboratory * | USA | |
| 7 (149) | Doe Joint Genome Institute | USA | |
| 8 (184) | National Center for Biotechnology Information | USA | |
| 9 (215) | Smithsonian National Museum of Natural History | USA | |
| 10 (286) | U.S. Department of Energy * | USA | |
| 11 (365) | Smithsonian Conservation Biology Institute | USA | |
| 12 (392) | Oak Ridge National Laboratory | USA | |
| 13 (409) | Jet Propulsion Laboratory | USA | |
| 14 (487) | Smithsonian Environmental Research Center | USA | |
| 15 (494) | National Aeronautics and Space Administration * | USA | |
| 16 (528) | US Food and Drug Administration | USA | |
| 17 (578) | United States Fish and Wildlife Service | USA | |
| 18 (592) | American Museum of Natural History | USA | |
| 19 (703) | US Environmental Protection Agency | USA | |
| 20 (887) | Pacific Northwest National Laboratory * | USA | |
| 21 (1001) | Field Museum Natural History | USA | |
| 22 (1047) | Missouri Botanical Garden | USA | |
| 23 (1320) | Los Alamos National Laboratory * | USA | |
| 24 (1360) | University of Maryland, Center for Environmental Science | USA | |
| 25 (1495) | Natural History Museum of los Angeles County | USA | |
| 26 (1522) | NASA Goddard Space Flight Center | USA | |
| 27 (1828) | Oak Ridge Institute for Science and Education | USA | |
| 28 (1911) | New York Botanical Garden | USA | |
| 29 (1990) | U.S. Army * | USA | |
| 30 (2416) | NASA Ames Research Center | USA | |
|
