Geoenergy - Providing solutions for seismic data compression, processing, and data management in the oil and gas industry.

Geophysical Directory - Directory of petroleum exploration companies who specialize in geophysical services and exploration.

Geophysical Technology Limited - GTL is a provider of unique sub-surface imaging equipment and services designed for mineral exploration, environmental investigation and UXO detection.

Engineering Seismology Group Canada - Specializes in passive monitoring of induced microseismicity, designs and manufactures a diverse range of products.

Land Tech - Geophysical services and rental of geophysical equipment. Specializes in passive seismic tomography surveys for the oil industry and in pipeline early warning pollution systems.

MicroGeophysics Corporation - Geophysical contract company. Site includes publications, work sites and a client list.

GeoPen - Series of geophysical exploration instruments used for environmental and engineering exploration.

Geoseismic - Supplier of earthquake monitoring systems: Hardware and Software designed to track earthquakes.

Earthquake Detector - The Quake Alarm provides early warning of earthquakes by detecting the compression wave (the P wave) which preceeds the actual shear wave of an earthquake.

KMI Direct - Offers earthquake related equipment for industrial, research, educational or hobby interests.

NetBit Geoservices - Provides earthquake fault zone disclosure reports for real properties in Almeda, Contra, Costa, San Mateo and Santa Clara counties in California.