| 1 (99) | National Aeronautics and Space Administration * | USA |  |
| 2 (192) | Lawrence Berkeley National Laboratory * | USA | |
| 3 (206) | U.S. Department of Health and Human Services * | USA | |
| 4 (230) | NASA Goddard Space Flight Center | USA | |
| 5 (231) | National Center for Biotechnology Information | USA | |
| 6 (235) | Jet Propulsion Laboratory | USA | |
| 7 (253) | Oak Ridge National Laboratory | USA | |
| 8 (265) | NASA Marshall Space Flight Center | USA | |
| 9 (287) | National Center for Atmospheric Research | USA | |
| 10 (309) | Los Alamos National Laboratory * | USA | |
| 11 (310) | National Institute of Standards and Technology * | USA | |
| 12 (312) | Pacific Northwest National Laboratory | USA | |
| 13 (317) | US Naval Research Laboratory | USA | |
| 14 (318) | NASA Ames Research Center | USA | |
| 15 (327) | Sandia National Laboratories, New Mexico | USA | |
| 16 (328) | U.S. Army * | USA | |
| 17 (333) | U.S. Air Force | USA | |
| 18 (337) | Smithsonian Institution * | USA | |
| 19 (354) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 20 (376) | United States Geological Survey | USA | |
| 21 (377) | Argonne National Laboratory | USA | |
| 22 (384) | Lawrence Livermore National Laboratory * | USA | |
| 23 (406) | Glenn Research Center | USA | |
| 24 (425) | National Research Council Canada * | CAN | |
| 24 (425) | NASA Langley Research Center | USA | |
| 26 (430) | National Renewable Energy Laboratory | USA | |
| 27 (439) | National Oceanic and Atmospheric Administration | USA | |
| 28 (455) | US National Science Foundation * | USA | |
| 29 (489) | SLAC National Accelerator Laboratory | USA | |
| 30 (523) | US Environmental Protection Agency | USA | |
| 31 (537) | US Food and Drug Administration | USA | |
| 32 (542) | Defence Research and Development Canada | CAN | |
| 33 (546) | National Energy Technology Laboratory | USA | |
| 34 (548) | Sandia National Laboratories, California | USA | |
| 35 (555) | Brookhaven National Laboratory * | USA | |
| 36 (569) | United States Department of Agriculture | USA | |
| 37 (621) | Center for Drug Evaluation & Research | USA | |
| 38 (638) | U.S. Department of Energy * | USA | |
| 39 (650) | Idaho National Laboratory | USA | |
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