| 1 (121) | United States Department of Agriculture | USA |  |
| 2 (144) | Lawrence Berkeley National Laboratory | USA | |
| 3 (298) | National Aeronautics and Space Administration * | USA | |
| 4 (325) | National Center for Biotechnology Information | USA | |
| 5 (350) | U.S. Army | USA | |
| 6 (356) | Oak Ridge National Laboratory | USA | |
| 7 (388) | National Research Council Canada | CAN | |
| 8 (434) | U.S. Food and Drug Administration | USA | |
| 9 (441) | Argonne National Laboratory | USA | |
| 10 (547) | Lawrence Livermore National Laboratory | USA | |
| 11 (552) | National Renewable Energy Laboratory | USA | |
| 12 (605) | Los Alamos National Laboratory | USA | |
| 13 (622) | National Institute of Standards and Technology * | USA | |
| 14 (658) | Pacific Northwest National Laboratory | USA | |
| 15 (786) | Sandia National Laboratories, New Mexico | USA | |
| 16 (802) | National Oceanic and Atmospheric Administration | USA | |
| 17 (877) | Doe Joint Genome Institute | USA | |
| 18 (952) | US Naval Research Laboratory | USA | |
| 19 (963) | SLAC National Accelerator Laboratory | USA | |
| 20 (989) | U.S. Air Force | USA | |
| 21 (991) | Brookhaven National Laboratory | USA | |
| 22 (992) | United States Geological Survey | USA | |
| 23 (1039) | Smithsonian Institution | USA | |
| 24 (1142) | NASA Goddard Space Flight Center | USA | |
| 25 (1162) | Jet Propulsion Laboratory | USA | |
| 26 (1195) | National Center for Atmospheric Research | USA | |
| 27 (1362) | Idaho National Laboratory | USA | |
| 28 (1402) | US Environmental Protection Agency | USA | |
| 29 (1414) | Agriculture and Agri-Food Canada | CAN | |
| 30 (1646) | National High Magnetic Field Laboratory | USA | |
| 31 (1668) | Canadian Institute for Advance Research | CAN | |
| 31 (1668) | NASA Ames Research Center | USA | |
| 33 (1692) | U.S. Department of Energy | USA | |
| 34 (1737) | NASA Goddard Institute for Space Studies | USA | |
| 35 (1786) | Westat Corporation | USA | |
| 36 (1848) | World Bank United States | USA | |
| 37 (1866) | Nemours A Children's Health System | USA | |
| 38 (1875) | National Energy Technology Laboratory | USA | |
| 39 (1931) | Oak Ridge Institute for Science and Education | USA | |
| 40 (1986) | University of Maryland, Center for Environmental Science | USA | |
| 41 (1992) | Communications Research Centre Canada | CAN | |
| 42 (2044) | Space Telescope Science Institute | USA | |
| 43 (2048) | Joint Quantum Institute | USA | |
| 44 (2077) | Thomas Jefferson National Accelerator Facility | USA | |
| 45 (2098) | Environment Canada | CAN | |
| 46 (2102) | Natural Resources Canada | CAN | |
| 47 (2125) | Ames Laboratory | USA | |
| 48 (2183) | Fermi National Accelerator Laboratory | USA | |
| 49 (2420) | Douglas Mental Health University Institute | CAN | |
| 50 (2433) | American Museum of Natural History | USA | |
| 51 (2599) | NASA Langley Research Center | USA | |
| 52 (2743) | Joint Institute for Laboratory Astrophysics | USA | |
| 53 (2843) | Federal Reserve System | USA | |
| 54 (2850) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 55 (2867) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 56 (2922) | Infrared Processing and Analysis Center | USA | |
| 57 (3125) | Field Museum Natural History | USA | |
| 58 (3202) | National Radio Astronomy Observatory, Socorro | USA | |
| 59 (3358) | National Optical Astronomy Observatory | USA | |
| 60 (3369) | Glenn Research Center | USA | |
| 61 (3373) | Bedford Institute of Oceanography | CAN | |
| 62 (3401) | Princeton Plasma Physics Laboratory | USA | |
| 63 (3549) | NASA Marshall Space Flight Center | USA | |
| 64 (3622) | Savannah River National Laboratory | USA | |
| 65 (3788) | NASA Johnson Space Center | USA | |
| 66 (3836) | US National Science Foundation | USA | |
| 67 (4192) | United States Fish and Wildlife Service | USA | |
| 68 (4256) | New York Botanical Garden | USA | |
| 69 (4428) | Missouri Botanical Garden | USA | |
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