| 1 (3) | National Center for Biotechnology Information | USA |  |
| 2 (12) | U.S. Food and Drug Administration | USA | |
| 3 (17) | Smithsonian Institution | USA | |
| 4 (19) | National Oceanic and Atmospheric Administration | USA | |
| 5 (25) | World Bank United States | USA | |
| 6 (36) | US Environmental Protection Agency | USA | |
| 7 (63) | National Aeronautics and Space Administration * | USA | |
| 8 (66) | United States Geological Survey | USA | |
| 9 (80) | Jet Propulsion Laboratory | USA | |
| 10 (93) | US National Science Foundation | USA | |
| 11 (104) | Natural Resources Canada | CAN | |
| 12 (179) | U.S. Army | USA | |
| 13 (204) | Environment Canada | CAN | |
| 14 (220) | U.S. Department of Energy | USA | |
| 15 (294) | NASA Goddard Space Flight Center | USA | |
| 16 (310) | Lawrence Berkeley National Laboratory | USA | |
| 17 (324) | Glenn Research Center | USA | |
| 17 (324) | NASA Ames Research Center | USA | |
| 17 (324) | NASA Johnson Space Center | USA | |
| 17 (324) | NASA Langley Research Center | USA | |
| 17 (324) | NASA Marshall Space Flight Center | USA | |
| 17 (324) | United States Department of Agriculture | USA | |
| 23 (368) | National Institute of Standards and Technology * | USA | |
| 23 (368) | U.S. Air Force | USA | |
| 25 (396) | United States Fish and Wildlife Service | USA | |
| 26 (473) | Argonne National Laboratory | USA | |
| 27 (526) | National Renewable Energy Laboratory | USA | |
| 28 (690) | Los Alamos National Laboratory | USA | |
| 29 (760) | SLAC National Accelerator Laboratory | USA | |
| 29 (760) | Thomas Jefferson National Accelerator Facility | USA | |
| 31 (945) | American Museum of Natural History | USA | |
| 31 (945) | Oak Ridge National Laboratory | USA | |
| 31 (945) | Pacific Northwest National Laboratory | USA | |
| 31 (945) | Space Telescope Science Institute | USA | |
| 35 (1133) | Field Museum Natural History | USA | |
| 35 (1133) | National Optical Astronomy Observatory | USA | |
| 37 (1462) | Brookhaven National Laboratory | USA | |
| 37 (1462) | Communications Research Centre Canada | CAN | |
| 37 (1462) | Doe Joint Genome Institute | USA | |
| 37 (1462) | Federal Reserve System | USA | |
| 37 (1462) | Fermi National Accelerator Laboratory | USA | |
| 37 (1462) | Infrared Processing and Analysis Center | USA | |
| 37 (1462) | Lawrence Livermore National Laboratory | USA | |
| 37 (1462) | Missouri Botanical Garden | USA | |
| 37 (1462) | National Center for Atmospheric Research | USA | |
| 37 (1462) | National Energy Technology Laboratory | USA | |
| 37 (1462) | National Research Council Canada | CAN | |
| 48 (2005) | Agriculture and Agri-Food Canada | CAN | |
| 48 (2005) | Douglas Mental Health University Institute | CAN | |
| 48 (2005) | Idaho National Laboratory | USA | |
| 48 (2005) | NASA Goddard Institute for Space Studies | USA | |
| 48 (2005) | National High Magnetic Field Laboratory | USA | |
| 48 (2005) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 48 (2005) | National Radio Astronomy Observatory, Socorro | USA | |
| 48 (2005) | New York Botanical Garden | USA | |
| 48 (2005) | Princeton Plasma Physics Laboratory | USA | |
| 48 (2005) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 48 (2005) | University of Maryland, Center for Environmental Science | USA | |
| 48 (2005) | US Naval Research Laboratory | USA | |
| 60 (2984) | Ames Laboratory | USA | |
| 60 (2984) | Bedford Institute of Oceanography | CAN | |
| 60 (2984) | Canadian Institute for Advance Research | CAN | |
| 60 (2984) | Joint Institute for Laboratory Astrophysics | USA | |
| 60 (2984) | Joint Quantum Institute | USA | |
| 60 (2984) | Nemours A Children's Health System | USA | |
| 60 (2984) | Oak Ridge Institute for Science and Education | USA | |
| 60 (2984) | Sandia National Laboratories, New Mexico | USA | |
| 60 (2984) | Savannah River National Laboratory | USA | |
| 60 (2984) | Westat Corporation | USA | |
|
