| 1 (83) | United States Department of Agriculture | USA |  |
| 2 (187) | Lawrence Berkeley National Laboratory | USA | |
| 3 (226) | U.S. Army | USA | |
| 4 (466) | U.S. Food and Drug Administration | USA | |
| 5 (544) | Doe Joint Genome Institute | USA | |
| 6 (547) | National Renewable Energy Laboratory | USA | |
| 7 (565) | Oak Ridge National Laboratory | USA | |
| 8 (602) | National Center for Biotechnology Information | USA | |
| 9 (616) | Pacific Northwest National Laboratory | USA | |
| 10 (627) | National Institute of Standards and Technology * | USA | |
| 11 (642) | US Naval Research Laboratory | USA | |
| 12 (649) | Sandia National Laboratories, New Mexico | USA | |
| 13 (662) | Lawrence Livermore National Laboratory | USA | |
| 14 (682) | Los Alamos National Laboratory | USA | |
| 15 (787) | National Aeronautics and Space Administration * | USA | |
| 16 (798) | Argonne National Laboratory | USA | |
| 17 (969) | U.S. Air Force | USA | |
| 18 (1236) | U.S. Department of Energy | USA | |
| 19 (1268) | Brookhaven National Laboratory | USA | |
| 20 (1324) | Armed Forces Institute of Pathology | USA | |
| 21 (1412) | National Energy Technology Laboratory | USA | |
| 22 (1581) | US Environmental Protection Agency | USA | |
| 23 (1610) | Nemours A Children's Health System | USA | |
| 24 (1639) | Jet Propulsion Laboratory | USA | |
| 25 (1782) | National High Magnetic Field Laboratory | USA | |
| 26 (2111) | Idaho National Laboratory | USA | |
| 27 (2183) | NASA Stennis Space Center | USA | |
| 28 (2241) | Ames Laboratory | USA | |
| 29 (2311) | Naval Air Systems Command | USA | |
| 30 (2446) | Federal Aviation Administration | USA | |
| 31 (2473) | Glenn Research Center | USA | |
| 32 (2537) | University of Maryland, Center for Environmental Science | USA | |
| 33 (2765) | Savannah River National Laboratory | USA | |
| 34 (2790) | NASA Ames Research Center | USA | |
| 35 (2852) | National Oceanic and Atmospheric Administration | USA | |
| 36 (2885) | NASA Langley Research Center | USA | |
| 37 (2976) | Thomas Jefferson National Accelerator Facility | USA | |
| 38 (2977) | US National Science Foundation | USA | |
| 39 (3186) | United States Geological Survey | USA | |
| 40 (3342) | NASA Goddard Space Flight Center | USA | |
| 41 (3370) | SLAC National Accelerator Laboratory | USA | |
| 42 (3457) | NASA Johnson Space Center | USA | |
| 43 (3684) | Fermi National Accelerator Laboratory | USA | |
| 44 (3770) | Joint Quantum Institute | USA | |
| 44 (3770) | NASA Kennedy Space Center | USA | |
| 46 (3853) | Joint Institute for Laboratory Astrophysics | USA | |
| 47 (3954) | Smithsonian Institution | USA | |
| 48 (4006) | National Center for Atmospheric Research | USA | |
| 49 (4105) | NASA Goddard Institute for Space Studies | USA | |
| 50 (4132) | Nuclear Regulatory Commission | USA | |
| 51 (4221) | Princeton Plasma Physics Laboratory | USA | |
| 52 (4229) | Missouri Botanical Garden | USA | |
| 53 (4281) | American Museum of Natural History | USA | |
| 53 (4281) | NASA Marshall Space Flight Center | USA | |
| 55 (4383) | Field Museum Natural History | USA | |
| 56 (4481) | Infrared Processing and Analysis Center | USA | |
| 56 (4481) | National Optical Astronomy Observatory | USA | |
| 56 (4481) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 56 (4481) | National Radio Astronomy Observatory, Socorro | USA | |
| 56 (4481) | Space Telescope Science Institute | USA | |
| 56 (4481) | Spitzer Science Center | USA | |
| 56 (4481) | United States Fish and Wildlife Service | USA | |
| 56 (4481) | World Bank United States | USA | |
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