GISCO specializes in sensitive, professional grade instruments for civil engineering, and oil, mineral and ground water exploration. We also serve engineering geologists, hydrologists, paleontologists and meteorologists. Our exports of earth science equipment supplies have reached more than seventy countries.
GISCO personnel provide expertise from a mix of geophysical, engineering and scientific backgrounds. Mr. John Nelson has 35 years of technical engineering with the last 19 years as head designer of seismographs, resistivity, magnetic susceptibility and many other instruments with Bison Instruments, a major manufacturer of earth science instruments. Mr.Nelson is responsible for developing our web site and is the chief technology officer for GISCO. His experience will help you with any questions or advice. Mr. Nicholas Jermihov has been in the high-tech instrumentation business for 23 years with the last five years with a major manufacturer of earth science instruments. He is responsible for management of the company and is ready to help you literally day or night. . Ms. Kim Schumm is responsible for day-to-day operations. You will appreciate her patience and professional demeanor. Dr. Daryl Tweeton provides technical sales support and will assist you in selecting suitable equipment. He has 15 years of experience with crosshole seismic and GPR tomography.

Our product knowledge and close working relationship with many manufacturers was developed to meet the needs of professional, academic and government communities. With our technical experience we provide a capability of integration of instruments and technologies. In fact, we are able to design and develop instruments for specific situations. Finding answers to questions has been a key to our success and we welcome requests to locate items not listed in our catalogs or Web Site. We look forward to working with you.

Nicholas Jermihov, Director