An oil and gas services corporation, TGC Industries is comprised of two companies: Tidelands Geophysical Company and Exploration Surveys. Tidelands Geophysical is a seismic acquisition company that has offered seismic data since 1967. Exploration Surveys is a digital database company that has provided high-resolution gravity data since 1945. The company has gravity coverage throughout North America and magnetic data coverage in many areas of the domestic United States. TGC Industries is located in Plano, Texas.
