| 1 (148) | U.S. Department of Health and Human Services * | USA | |
| 2 (166) | National Aeronautics and Space Administration * | USA | |
| 3 (246) | National Center for Biotechnology Information | USA | |
| 4 (288) | Lawrence Berkeley National Laboratory * | USA | |
| 5 (320) | Oak Ridge National Laboratory | USA | |
| 6 (357) | National Institute of Standards and Technology * | USA | |
| 7 (365) | Sandia National Laboratories, New Mexico | USA | |
| 8 (366) | U.S. Army * | USA | |
| 9 (386) | U.S. Air Force | USA | |
| 9 (386) | Argonne National Laboratory | USA | |
| 11 (389) | Jet Propulsion Laboratory | USA | |
| 12 (419) | Los Alamos National Laboratory * | USA | |
| 13 (440) | Pacific Northwest National Laboratory | USA | |
| 14 (441) | Lawrence Livermore National Laboratory * | USA | |
| 15 (450) | Smithsonian Institution * | USA | |
| 16 (458) | NASA Ames Research Center | USA | |
| 17 (462) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 18 (464) | NASA Goddard Space Flight Center | USA | |
| 19 (485) | US National Science Foundation * | USA | |
| 20 (486) | US Naval Research Laboratory | USA | |
| 21 (488) | United States Department of Agriculture | USA | |
| 22 (496) | US Food and Drug Administration | USA | |
| 23 (510) | NASA Langley Research Center | USA | |
| 24 (517) | NASA Marshall Space Flight Center | USA | |
| 25 (530) | National Renewable Energy Laboratory | USA | |
| 26 (536) | Glenn Research Center | USA | |
| 27 (550) | United States Geological Survey | USA | |
| 28 (573) | Sandia National Laboratories, California | USA | |
| 29 (590) | National Oceanic and Atmospheric Administration | USA | |
| 30 (596) | National Center for Atmospheric Research | USA | |
| 31 (606) | SLAC National Accelerator Laboratory | USA | |
| 32 (628) | U.S. Department of Energy * | USA | |
| 33 (639) | Brookhaven National Laboratory * | USA | |
| 34 (718) | Idaho National Laboratory | USA | |
|