| 1 (17) | US Environmental Protection Agency | USA | |
| 2 (31) | National Aeronautics and Space Administration * | USA | |
| 3 (43) | Lawrence Berkeley National Laboratory * | USA | |
| 4 (110) | Los Alamos National Laboratory * | USA | |
| 5 (206) | National Renewable Energy Laboratory | USA | |
| 6 (224) | United States Department of Agriculture | USA | |
| 7 (275) | Sandia National Laboratories, New Mexico | USA | |
| 8 (318) | Oak Ridge National Laboratory | USA | |
| 9 (325) | U.S. Army * | USA | |
| 10 (330) | Argonne National Laboratory | USA | |
| 11 (344) | National Oceanic and Atmospheric Administration | USA | |
| 12 (361) | National Institute of Standards and Technology * | USA | |
| 13 (392) | Jet Propulsion Laboratory | USA | |
| 14 (393) | United States Geological Survey | USA | |
| 15 (516) | Natural Resources Canada | CAN | |
| 16 (566) | Pacific Northwest National Laboratory | USA | |
| 17 (642) | U.S. Air Force | USA | |
| 18 (665) | National Research Council Canada * | CAN | |
|