- SAGE
- Saint Louis University
- Sana'a University
- San Francisco State University
- School of Cosmic Physics [Dublin]
- School of Earth and Environmental Sciences
- School of Earth and Environment [Leeds]
- School of Earth and Ocean Sciences, University of Victoria, Victoria BC, Canada
- School of Earth, Atmospheric and Environmental Sciences [Manchester]
- School of Earth Sciences [Bristol]
- School of Earth Sciences, Ohio State University
- School of Geography, Environment and Earth Sciences [Wellington]
- School of Geological Sciences [Dublin]
- School of Mathematics and Statistics [Sydney]
- School of Ocean and Earth Science and Technology
- School of Oceanography [Seattle]
- School of Physical Sciences [Hobart]
- Schweizerischer Erdbebendienst
- Sciences Po Bordeaux - Institut d'études politiques de Bordeaux
- Sciences Po Grenoble - Institut d'études politiques de Grenoble
- Scripps Institution of Oceanography
- Séismes et Vibrations
- Seismic Research Center
- Seismological and Volcanological
- Seismological Laboratory [Patras]
- Seismology and Computational Rock Physics Laboratory, School of Geological Sciences
- Seismology and Geophysics division, Thimphu
- Seismology Laboratory
- SEISTER SAS, France
- Service de caractérisation des sites et des aléas naturels
- Service d'Etudes Mécaniques et Thermiques
- Service Hydrographique et Océanographique de la Marine
- Service Informatique : Développement, Exploitation et Assistance
- Service National d'Observation sur le KARST
- Services communs OMP
- Servicio Geológico Colombiano, GNSS GeoRED Project, Center for Processing and Analysis of Geodetic Data
- Servicio Nacional de Geologia y Mineria
- Sezione di Palermo
- Siberian Branch of the Russian Academy of Sciences
- SINTEGRA
- Sismologie (IPGS)
- SISPROBE
- Slovenian Environment Agency
- Société Alpine de Géotechnique [Gières]
- Sols - Matériaux - Structures, Intégrité et Durabilité
- Sols, Roches et Ouvrages Géotechniques
- Sons
- Sorbonne Université
- SPACE - LATMOS
- SPEKTRA - Schwingungstechnik und Akustik GmbH Dresden
- Stanford University
- State Key Laboratory of Lithospheric Evolution
- State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
- STRATO - LATMOS
- Structure et fonctionnement des systèmes hydriques continentaux
- Sultan Qaboos University
- Swiss Seismological Service
- Swiss Seismological Service [ETH Zurich]
- Swiss Seismological Service, Institute of Geophysics
- Systèmes de Référence Temps Espace
- Systèmes Tectoniques