U.S. Geological Survey's Albuquerque Seismological Laboratory (~2/3 of the GSN)
The ASL Scientist-in-Charge in Albuquerque, New Mexico provides the management for the USGS portion of GSN network and DCC operations.
Project IDA (International Deployment of Accelerometers), operated by the Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego (~1/3 of the GSN)
The Project IDA PI and Executive Director manage the IDA network operations and the DCC through a subaward from IRIS funded by NSF.
AFTAC: (Arrays ILAR, NVAR, PDAR, and TXAR and Stations LBTB and VNDA) Air Force Technical Applications Center, Patrick Air Force Base, Florida. AFTAC is home to the United States National Data Center (US NDC)
Berkeley: (Station CMB) Berkeley Seismological Laboratory, Department of Earth and Planetary Sciences, University of California, Berkeley
Caltech: (Station PASC) Caltech Seismological Laboratory, Division of Geological and Planetary Sciences, California Institute of Technology
GEOSCOPE: (Stations KIP and TRIS). The French GEOSCOPE program of the Institut de Physique du globe de Paris.
NIED: National Research Institute for Earth Science and Disaster Prevention, Japan