| 1 (46) | Harvard-Smithsonian Center for Astrophysics | USA |  |
| 2 (53) | National Center for Biotechnology Information | USA | |
| 3 (62) | Lawrence Berkeley National Laboratory * | USA | |
| 4 (93) | SLAC National Accelerator Laboratory | USA | |
| 5 (188) | Smithsonian Institution * | USA | |
| 6 (197) | Argonne National Laboratory | USA | |
| 7 (240) | National Renewable Energy Laboratory | USA | |
| 8 (295) | Oak Ridge National Laboratory | USA | |
| 9 (387) | Brookhaven National Laboratory * | USA | |
| 10 (451) | Pacific Northwest National Laboratory | USA | |
| 11 (504) | Lawrence Livermore National Laboratory * | USA | |
| 12 (557) | Sandia National Laboratories, California | USA | |
| 13 (626) | Sandia National Laboratories, New Mexico | USA | |
| 14 (761) | U.S. Army * | USA | |
| 15 (794) | National Institute of Standards and Technology * | USA | |
| 16 (797) | US Environmental Protection Agency | USA | |
| 17 (867) | Los Alamos National Laboratory * | USA | |
| 18 (922) | United States Department of Agriculture | USA | |
| 19 (944) | NASA Ames Research Center | USA | |
| 20 (955) | National Oceanic and Atmospheric Administration | USA | |
| 21 (970) | United States Geological Survey | USA | |
| 22 (1054) | US Naval Research Laboratory | USA | |
| 23 (1131) | National Aeronautics and Space Administration * | USA | |
| 24 (1186) | National High Magnetic Field Laboratory | USA | |
| 25 (1212) | U.S. Department of Energy * | USA | |
| 26 (1308) | National Energy Technology Laboratory | USA | |
| 27 (1361) | National Center for Atmospheric Research | USA | |
| 28 (1372) | Agriculture and Agri-Food Canada | CAN | |
| 29 (1418) | Oak Ridge Institute for Science and Education | USA | |
| 30 (1529) | Ames Laboratory | USA | |
| 31 (1577) | Idaho National Laboratory | USA | |
| 32 (1579) | US Food and Drug Administration | USA | |
| 33 (1638) | U.S. Air Force | USA | |
| 34 (1642) | NASA Goddard Space Flight Center | USA | |
| 35 (1803) | Jet Propulsion Laboratory | USA | |
| 36 (1857) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 37 (2013) | Environment Canada | CAN | |
| 38 (2242) | National Center for Toxicological Research | USA | |
| 39 (2262) | National Research Council Canada * | CAN | |
| 40 (2295) | Glenn Research Center | USA | |
| 41 (2598) | Center for Drug Evaluation & Research | USA | |
| 42 (2788) | Center for Food Safety and Applied Nutrition | USA | |
| 43 (2945) | Joint Institute for Laboratory Astrophysics | USA | |
| 44 (3263) | Natural Resources Canada | CAN | |
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