| 1 (2) | National Center for Biotechnology Information | USA |  |
| 2 (15) | U.S. Food and Drug Administration | USA | |
| 3 (18) | National Oceanic and Atmospheric Administration | USA | |
| 4 (34) | Smithsonian Institution | USA | |
| 5 (35) | World Bank United States | USA | |
| 6 (57) | United States Geological Survey | USA | |
| 7 (65) | National Aeronautics and Space Administration * | USA | |
| 8 (72) | Jet Propulsion Laboratory | USA | |
| 9 (75) | US Environmental Protection Agency | USA | |
| 10 (80) | Natural Resources Canada | CAN | |
| 11 (92) | US National Science Foundation | USA | |
| 12 (113) | Glenn Research Center | USA | |
| 12 (113) | NASA Ames Research Center | USA | |
| 12 (113) | NASA Goddard Space Flight Center | USA | |
| 12 (113) | NASA Johnson Space Center | USA | |
| 12 (113) | NASA Langley Research Center | USA | |
| 12 (113) | NASA Marshall Space Flight Center | USA | |
| 12 (113) | NASA Stennis Space Center | USA | |
| 19 (206) | U.S. Department of Energy | USA | |
| 20 (286) | Environment Canada | CAN | |
| 21 (299) | Lawrence Berkeley National Laboratory | USA | |
| 22 (317) | United States Department of Agriculture | USA | |
| 22 (317) | U.S. Army | USA | |
| 24 (349) | National Institute of Standards and Technology * | USA | |
| 24 (349) | United States Fish and Wildlife Service | USA | |
| 24 (349) | U.S. Air Force | USA | |
| 27 (490) | Argonne National Laboratory | USA | |
| 28 (581) | National Renewable Energy Laboratory | USA | |
| 29 (643) | Los Alamos National Laboratory | USA | |
| 30 (708) | SLAC National Accelerator Laboratory | USA | |
| 30 (708) | Thomas Jefferson National Accelerator Facility | USA | |
| 32 (1066) | American Museum of Natural History | USA | |
| 32 (1066) | Doe Joint Genome Institute | USA | |
| 32 (1066) | Field Museum Natural History | USA | |
| 32 (1066) | National Optical Astronomy Observatory | USA | |
| 32 (1066) | Nuclear Regulatory Commission | USA | |
| 32 (1066) | Space Telescope Science Institute | USA | |
| 38 (1361) | Communications Research Centre Canada | CAN | |
| 38 (1361) | Federal Reserve System | USA | |
| 38 (1361) | Fermi National Accelerator Laboratory | USA | |
| 38 (1361) | Infrared Processing and Analysis Center | USA | |
| 38 (1361) | Lawrence Livermore National Laboratory | USA | |
| 38 (1361) | National Center for Atmospheric Research | USA | |
| 38 (1361) | National Energy Technology Laboratory | USA | |
| 38 (1361) | Oak Ridge National Laboratory | USA | |
| 38 (1361) | Pacific Northwest National Laboratory | USA | |
| 47 (1892) | Agriculture and Agri-Food Canada | CAN | |
| 47 (1892) | Brookhaven National Laboratory | USA | |
| 47 (1892) | Idaho National Laboratory | USA | |
| 47 (1892) | Missouri Botanical Garden | USA | |
| 47 (1892) | National High Magnetic Field Laboratory | USA | |
| 47 (1892) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 47 (1892) | National Research Council Canada | CAN | |
| 47 (1892) | Princeton Plasma Physics Laboratory | USA | |
| 47 (1892) | Sandia National Laboratories, New Mexico | USA | |
| 47 (1892) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 47 (1892) | University of Maryland, Center for Environmental Science | USA | |
| 47 (1892) | US Naval Research Laboratory | USA | |
| 59 (2905) | Ames Laboratory | USA | |
| 59 (2905) | Bedford Institute of Oceanography | CAN | |
| 59 (2905) | Canadian Institute for Advance Research | CAN | |
| 59 (2905) | Douglas Mental Health University Institute | CAN | |
| 59 (2905) | Joint Institute for Laboratory Astrophysics | USA | |
| 59 (2905) | Joint Quantum Institute | USA | |
| 59 (2905) | NASA Goddard Institute for Space Studies | USA | |
| 59 (2905) | Nemours A Children's Health System | USA | |
| 59 (2905) | Oak Ridge Institute for Science and Education | USA | |
| 59 (2905) | Savannah River National Laboratory | USA | |
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