| 1 (81) | National Aeronautics and Space Administration * | USA |  |
| 2 (131) | Lawrence Berkeley National Laboratory * | USA | |
| 3 (132) | National Renewable Energy Laboratory | USA | |
| 4 (181) | National Institute of Standards and Technology * | USA | |
| 5 (199) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 6 (206) | Smithsonian Institution * | USA | |
| 7 (256) | SLAC National Accelerator Laboratory | USA | |
| 8 (262) | Joint Quantum Institute | USA | |
| 9 (310) | United States Geological Survey | USA | |
| 10 (321) | United States Department of Agriculture | USA | |
| 11 (340) | Sandia National Laboratories, New Mexico | USA | |
| 12 (349) | Argonne National Laboratory * | USA | |
| 13 (375) | Oak Ridge National Laboratory | USA | |
| 14 (383) | Jet Propulsion Laboratory | USA | |
| 15 (395) | Molecular Foundry | USA | |
| 16 (421) | Space Telescope Science Institute | USA | |
| 17 (469) | Los Alamos National Laboratory * | USA | |
| 18 (480) | US Food and Drug Administration | USA | |
| 19 (507) | Pacific Northwest National Laboratory * | USA | |
| 20 (523) | Center for Nanoscale Materials | USA | |
| 21 (551) | Brookhaven National Laboratory * | USA | |
| 22 (650) | Joint Institute for Laboratory Astrophysics | USA | |
| 23 (664) | Center for Integrated Nanotechnologies | USA | |
| 24 (688) | Lawrence Livermore National Laboratory * | USA | |
| 25 (693) | NASA Goddard Space Flight Center | USA | |
| 26 (738) | Infrared Processing and Analysis Center | USA | |
| 27 (741) | U.S. Department of Energy * | USA | |
| 28 (778) | National Radio Astronomy Observatory Charlottesville | USA | |
| 29 (801) | National Research Council of the National Academies | USA | |
| 30 (804) | National Energy Technology Laboratory | USA | |
| 31 (840) | National Oceanic and Atmospheric Administration | USA | |
| 32 (861) | American Museum of Natural History | USA | |
| 33 (953) | US Naval Research Laboratory | USA | |
| 34 (957) | U.S. Air Force | USA | |
| 35 (973) | Fermi National Accelerator Laboratory | USA | |
| 36 (1060) | National Center for Atmospheric Research | USA | |
| 37 (1120) | NASA Ames Research Center | USA | |
| 38 (1139) | U.S. Army * | USA | |
| 39 (1145) | Center for Devices and Radiological Health | USA | |
| 40 (1341) | Ames Laboratory | USA | |
| 41 (1497) | National Radio Astronomy Observatory, Socorro | USA | |
| 42 (1527) | NASA Langley Research Center | USA | |
| 43 (1553) | National High Magnetic Field Laboratory | USA | |
| 44 (1594) | Sandia National Laboratories, California | USA | |
| 45 (1604) | Thomas Jefferson National Accelerator Facility | USA | |
| 46 (1676) | Glenn Research Center | USA | |
| 47 (1776) | US National Science Foundation * | USA | |
| 48 (1869) | NASA Marshall Space Flight Center | USA | |
| 49 (1953) | Idaho National Laboratory | USA | |
| 50 (1975) | NASA Johnson Space Center | USA | |
| 51 (2185) | Princeton Plasma Physics Laboratory | USA | |
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