Controlled-source electromagnetic and magnetotelluric (MT) data acquisition, processing and interpretation, 2D/3D prestack time and depth imaging.

www.geosystem.net/

Specializes in acquiring high density, reservoir grade 3D data sets and provides land and marine seismic acquisition solutions on a proprietary contract or speculative basis.

www.globalgeophysical.com/

Geophysical processing center for seismic data. Includes a description of software and hardware technology and a company profile.

www.hardinintl.com/

Promotes the scientific study of problems related to earthquakes and other seismic sources, the propagation of seismic waves, and the Earth's internal structure, properties, and processes.

www.iaspei.org/

IRIS is a university research consortium dedicated to exploring the Earth's interior through the collection and distribution of seismographic data.

www.iris.edu/

Publisher of the Oil & Gas Directory and the Geophysical Directory. Includes a description of content, sample pages, and ordering information.

www.informationservices.com/

Promotes and coordinates basic research on the understanding of the origin, structure, and evolution of the Earth, the Solar System, and the Universe.

www.igpp.lanl.gov/

Promotes the safe operation of helicopters and fixed-wing aircraft on airborne geophysical surveys. The association develops recommended practices, serves as a center for exchange of safety information and as a repository for specialized statistics.

www.iagsa.ca/

Non-governmental organization charged with the final collection, analysis and publication of standard earthquake information from all over the world.

www.isc.ac.uk/

Dedicated to advancing, promoting, and communicating knowledge of the Earth system, its space environment, and the dynamical processes causing change.

www.iugg.org/