| 1 (96) | United States Department of Agriculture | USA |  |
| 2 (137) | Lawrence Berkeley National Laboratory | USA | |
| 3 (217) | National Center for Biotechnology Information | USA | |
| 4 (277) | National Aeronautics and Space Administration * | USA | |
| 5 (282) | U.S. Army | USA | |
| 6 (405) | Oak Ridge National Laboratory | USA | |
| 7 (492) | National Institute of Standards and Technology * | USA | |
| 8 (493) | Argonne National Laboratory | USA | |
| 9 (511) | U.S. Food and Drug Administration | USA | |
| 10 (514) | Los Alamos National Laboratory | USA | |
| 11 (518) | Lawrence Livermore National Laboratory | USA | |
| 12 (544) | National Renewable Energy Laboratory | USA | |
| 13 (594) | Pacific Northwest National Laboratory | USA | |
| 14 (599) | Doe Joint Genome Institute | USA | |
| 15 (681) | Sandia National Laboratories, New Mexico | USA | |
| 16 (776) | National Oceanic and Atmospheric Administration | USA | |
| 17 (847) | U.S. Air Force | USA | |
| 18 (894) | US Naval Research Laboratory | USA | |
| 19 (930) | Brookhaven National Laboratory | USA | |
| 20 (932) | United States Geological Survey | USA | |
| 21 (956) | US Environmental Protection Agency | USA | |
| 22 (965) | SLAC National Accelerator Laboratory | USA | |
| 23 (998) | Jet Propulsion Laboratory | USA | |
| 24 (1040) | Smithsonian Institution | USA | |
| 25 (1085) | National Center for Atmospheric Research | USA | |
| 26 (1160) | NASA Goddard Space Flight Center | USA | |
| 27 (1562) | National High Magnetic Field Laboratory | USA | |
| 28 (1662) | NASA Ames Research Center | USA | |
| 29 (1673) | U.S. Department of Energy | USA | |
| 30 (1735) | World Bank United States | USA | |
| 31 (1777) | National Energy Technology Laboratory | USA | |
| 32 (1954) | University of Maryland, Center for Environmental Science | USA | |
| 33 (1966) | Joint Quantum Institute | USA | |
| 34 (1995) | Ames Laboratory | USA | |
| 35 (2050) | NASA Goddard Institute for Space Studies | USA | |
| 36 (2077) | Nemours A Children's Health System | USA | |
| 37 (2113) | Fermi National Accelerator Laboratory | USA | |
| 38 (2149) | Space Telescope Science Institute | USA | |
| 39 (2199) | American Museum of Natural History | USA | |
| 40 (2205) | Idaho National Laboratory | USA | |
| 41 (2253) | NASA Langley Research Center | USA | |
| 42 (2603) | Joint Institute for Laboratory Astrophysics | USA | |
| 43 (2667) | Oak Ridge Institute for Science and Education | USA | |
| 44 (2807) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 45 (2848) | Federal Reserve System | USA | |
| 46 (2875) | Infrared Processing and Analysis Center | USA | |
| 47 (2966) | National Optical Astronomy Observatory | USA | |
| 48 (3035) | Thomas Jefferson National Accelerator Facility | USA | |
| 49 (3170) | Field Museum Natural History | USA | |
| 50 (3351) | Princeton Plasma Physics Laboratory | USA | |
| 51 (3367) | NASA Johnson Space Center | USA | |
| 52 (3679) | Glenn Research Center | USA | |
| 53 (3681) | US National Science Foundation | USA | |
| 54 (3720) | NASA Marshall Space Flight Center | USA | |
| 55 (3881) | NASA Stennis Space Center | USA | |
| 56 (4362) | United States Fish and Wildlife Service | USA | |
| 57 (4480) | Savannah River National Laboratory | USA | |
| 58 (4723) | Missouri Botanical Garden | USA | |
| 59 (5125) | Nuclear Regulatory Commission | USA | |
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