| 1 (74) | United States Department of Agriculture | USA |  |
| 2 (131) | Lawrence Berkeley National Laboratory | USA | |
| 3 (234) | National Aeronautics and Space Administration * | USA | |
| 4 (272) | U.S. Army | USA | |
| 5 (380) | National Center for Biotechnology Information | USA | |
| 6 (394) | Oak Ridge National Laboratory | USA | |
| 7 (425) | Doe Joint Genome Institute | USA | |
| 8 (459) | National Institute of Standards and Technology * | USA | |
| 9 (469) | Los Alamos National Laboratory | USA | |
| 10 (513) | Lawrence Livermore National Laboratory | USA | |
| 11 (521) | U.S. Food and Drug Administration | USA | |
| 12 (523) | Argonne National Laboratory | USA | |
| 13 (530) | National Renewable Energy Laboratory | USA | |
| 14 (532) | Pacific Northwest National Laboratory | USA | |
| 15 (618) | Sandia National Laboratories, New Mexico | USA | |
| 16 (709) | US Naval Research Laboratory | USA | |
| 17 (779) | U.S. Air Force | USA | |
| 18 (811) | National Oceanic and Atmospheric Administration | USA | |
| 19 (906) | United States Geological Survey | USA | |
| 20 (917) | Brookhaven National Laboratory | USA | |
| 21 (949) | Jet Propulsion Laboratory | USA | |
| 22 (992) | National Center for Atmospheric Research | USA | |
| 23 (999) | US Environmental Protection Agency | USA | |
| 24 (1037) | NASA Goddard Space Flight Center | USA | |
| 25 (1075) | Smithsonian Institution | USA | |
| 26 (1103) | SLAC National Accelerator Laboratory | USA | |
| 27 (1550) | National High Magnetic Field Laboratory | USA | |
| 28 (1636) | NASA Ames Research Center | USA | |
| 29 (1639) | Ames Laboratory | USA | |
| 30 (1648) | U.S. Department of Energy | USA | |
| 31 (1685) | National Energy Technology Laboratory | USA | |
| 32 (1715) | University of Maryland, Center for Environmental Science | USA | |
| 33 (1733) | Joint Quantum Institute | USA | |
| 34 (1819) | World Bank United States | USA | |
| 35 (2082) | NASA Langley Research Center | USA | |
| 36 (2158) | Space Telescope Science Institute | USA | |
| 37 (2160) | Fermi National Accelerator Laboratory | USA | |
| 38 (2350) | American Museum of Natural History | USA | |
| 39 (2364) | Nemours A Children's Health System | USA | |
| 40 (2602) | National Optical Astronomy Observatory | USA | |
| 41 (2622) | Idaho National Laboratory | USA | |
| 42 (2737) | Joint Institute for Laboratory Astrophysics | USA | |
| 43 (2754) | Spitzer Science Center | USA | |
| 44 (2894) | Field Museum Natural History | USA | |
| 45 (2905) | Princeton Plasma Physics Laboratory | USA | |
| 46 (2920) | Infrared Processing and Analysis Center | USA | |
| 47 (2925) | Subaru Telescope | USA | |
| 48 (3022) | Glenn Research Center | USA | |
| 49 (3138) | Thomas Jefferson National Accelerator Facility | USA | |
| 50 (3166) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 51 (3174) | NASA Stennis Space Center | USA | |
| 52 (3420) | National Radio Astronomy Observatory, Socorro | USA | |
| 53 (3433) | NASA Johnson Space Center | USA | |
| 54 (3582) | US National Science Foundation | USA | |
| 55 (4101) | NASA Marshall Space Flight Center | USA | |
| 56 (4154) | NASA Kennedy Space Center | USA | |
| 57 (4219) | New York Botanical Garden | USA | |
| 58 (4229) | Savannah River National Laboratory | USA | |
| 59 (4330) | United States Fish and Wildlife Service | USA | |
| 60 (4666) | Missouri Botanical Garden | USA | |
| 61 (5067) | Nuclear Regulatory Commission | USA | |
| 62 (5071) | Research Institute for Fragrance Materials | USA | |
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