| 1 (10) | National Oceanic and Atmospheric Administration | USA |  |
| 2 (23) | United States Geological Survey | USA | |
| 3 (31) | Fisheries and Oceans Canada * | CAN | |
| 4 (63) | Jet Propulsion Laboratory | USA | |
| 5 (66) | National Aeronautics and Space Administration * | USA | |
| 6 (115) | United States Department of Agriculture | USA | |
| 7 (120) | NASA Goddard Space Flight Center | USA | |
| 8 (161) | Environment Canada | CAN | |
| 9 (248) | US Environmental Protection Agency | USA | |
| 10 (273) | Smithsonian Institution * | USA | |
| 11 (303) | United States Fish and Wildlife Service | USA | |
| 12 (379) | University of Maryland, Center for Environmental Science | USA | |
| 13 (454) | U.S. Army * | USA | |
| 14 (458) | Smithsonian Environmental Research Center | USA | |
| 15 (486) | National Park Service, United States | USA | |
| 16 (553) | Natural Resources Canada | CAN | |
| 17 (563) | NASA Stennis Space Center | USA | |
| 18 (578) | National Research Council Canada * | CAN | |
| 19 (672) | Smithsonian National Museum of Natural History | USA | |
| 20 (755) | Lawrence Berkeley National Laboratory * | USA | |
| 21 (795) | U.S. Department of Energy * | USA | |
| 22 (808) | Bedford Institute of Oceanography | CAN | |
| 23 (966) | Pacific Northwest National Laboratory * | USA | |
| 24 (1113) | Oak Ridge Institute for Science and Education | USA | |
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