Core institutions = US-based, degree granting universities, colleges and technical schools and EDU entities.
| Name | Type | Country |
|---|---|---|
| Columbia Scientific Balloon Facility (NSBF/NASA) | GOV | United States |
| METEO: National Meteorological Administration | GOV | Romania |
| National Oceanic and Atmospheric Administration (NOAA) | GOV | United States |
| U.S. Navy | MIL | United States |
Total: 4 sites | ||