| 1 (104) | United States Department of Agriculture | USA |  |
| 2 (122) | National Aeronautics and Space Administration * | USA | |
| 3 (133) | Lawrence Berkeley National Laboratory | USA | |
| 4 (307) | Oak Ridge National Laboratory | USA | |
| 5 (335) | Argonne National Laboratory | USA | |
| 6 (337) | Los Alamos National Laboratory | USA | |
| 7 (353) | U.S. Army | USA | |
| 8 (356) | Doe Joint Genome Institute | USA | |
| 9 (389) | National Center for Biotechnology Information | USA | |
| 10 (405) | National Institute of Standards and Technology * | USA | |
| 11 (413) | National Oceanic and Atmospheric Administration | USA | |
| 12 (436) | United States Geological Survey | USA | |
| 13 (477) | SLAC National Accelerator Laboratory | USA | |
| 14 (493) | Pacific Northwest National Laboratory | USA | |
| 15 (510) | Lawrence Livermore National Laboratory | USA | |
| 16 (533) | National Center for Atmospheric Research | USA | |
| 16 (533) | Smithsonian Institution | USA | |
| 18 (568) | U.S. Food and Drug Administration | USA | |
| 19 (580) | NASA Goddard Space Flight Center | USA | |
| 20 (608) | Jet Propulsion Laboratory | USA | |
| 21 (610) | U.S. Air Force | USA | |
| 22 (628) | Sandia National Laboratories, New Mexico | USA | |
| 23 (641) | Brookhaven National Laboratory | USA | |
| 24 (738) | National Renewable Energy Laboratory | USA | |
| 25 (771) | US Environmental Protection Agency | USA | |
| 26 (814) | US Naval Research Laboratory | USA | |
| 27 (830) | NASA Goddard Institute for Space Studies | USA | |
| 28 (915) | NASA Ames Research Center | USA | |
| 29 (1073) | Joint Quantum Institute | USA | |
| 30 (1079) | Space Telescope Science Institute | USA | |
| 30 (1079) | World Bank United States | USA | |
| 32 (1302) | U.S. Department of Energy | USA | |
| 33 (1332) | National High Magnetic Field Laboratory | USA | |
| 34 (1421) | Fermi National Accelerator Laboratory | USA | |
| 35 (1428) | American Museum of Natural History | USA | |
| 36 (1555) | Ames Laboratory | USA | |
| 37 (1628) | NASA Langley Research Center | USA | |
| 38 (1724) | National Energy Technology Laboratory | USA | |
| 39 (1746) | University of Maryland, Center for Environmental Science | USA | |
| 40 (1777) | Joint Institute for Laboratory Astrophysics | USA | |
| 41 (1925) | Federal Reserve System | USA | |
| 42 (1960) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 43 (2022) | Infrared Processing and Analysis Center | USA | |
| 44 (2272) | Westat Corporation | USA | |
| 45 (2313) | Field Museum Natural History | USA | |
| 46 (2416) | National Radio Astronomy Observatory, Socorro | USA | |
| 47 (2465) | Oak Ridge Institute for Science and Education | USA | |
| 48 (2629) | National Optical Astronomy Observatory | USA | |
| 49 (2681) | Princeton Plasma Physics Laboratory | USA | |
| 50 (2813) | Nemours A Children's Health System | USA | |
| 51 (2981) | NASA Marshall Space Flight Center | USA | |
| 52 (3273) | Idaho National Laboratory | USA | |
| 53 (3309) | NASA Johnson Space Center | USA | |
| 54 (3368) | Glenn Research Center | USA | |
| 55 (3393) | Thomas Jefferson National Accelerator Facility | USA | |
| 56 (3555) | US National Science Foundation | USA | |
| 57 (3941) | United States Fish and Wildlife Service | USA | |
| 58 (3987) | New York Botanical Garden | USA | |
| 59 (4264) | Missouri Botanical Garden | USA | |
| 60 (4755) | Savannah River National Laboratory | USA | |
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