Advanced Logic Technology
Design and production of slimhole imaging probes, acoustic and optical televiewer, data logging systems and geophysical borehole logging equipment.
http://www.alt.lu/

Key Systems Geotechnical
Keynetix produces a large number of software applications for Geotechnical and Geoenvironmental data management
http://www.keygeotech.co.uk/

Mount Sopris Instruments
Mount Sopris Instruments is the world leader manufacturing geophysical logging systems. We are the borehole geophysics experts.
http://www.mountsopris.com/

Geosoftvn.,JSC
borehole log, drill well logger Geosoft VN software geophysics geology geochemistry environmental and earth science applications in mineral exploration petroleum and government. GIS software. Borehole and mapping software geological survey data
http://www.geosoftvn.com/

NORCAL Geophysical Consultants, Inc.
Surface data acquisition and interpretation, borehole logging and imaging, for environmental, geohydrologic, geotechnical, and engineering applications and UXO detection.
http://www.norcalgeophysical.com/

Downhole Surveys Pty Ltd,
Directional Surveying Specialists to the drilling, mining, mineral exploration & civil engineering industries throughout Australia, New Zealand, SE Asia & South Africa
http://www.downhole.com.au/

Fugro Ground Geophysics
Fugro Ground Geophysics - Geophysical Solutions Worldwide.
http://www.fugroground.com/

Naeva Geophysics, Inc
NAEVA Geophysics, Inc. - The leader in subsurface detection. NAEVA was established in 1996 through the merger of Spectrum Northeast, Inc. and the geophysical division of its parent company, North American Exploration of Virginia, Inc. (NAEVA). Together they offer over 34 years of experience in providing geophysical and geological services to over 200 government and private industry clients. NAEVA's management and staff of geologists and geophysicists have extensive experience in geophysical survey design, quality data acquisition, and data processing and interpretation. During the past 10 years, NAEVA has provided Munitions and Explosive of Concern (MEC) digital geophysical mapping services at more than 30 sites for governmental and private industry clients performed at locations throughout the continental United States as well as Germany, Puerto Rico, Alaska, and Hawaii.
http://www.naevageophysics.com/

CBG corporation
CBG Corporation is an engineering and manufacturing company focused on the changing needs of the Petroleum Exploration and Production industries. Since 1992, CBG has been supplying the industry with state-of-the-art logging tools and sensors for Production Logging, Open-Hole Logging, Directional Drilling and MWD.
http://cbgcorp.com

WellSight Systems Inc.
Software product line for horizontal and directional logging, mud logging, core logging, and well log analysis.
http://www.wellsight.com/