Instrumentation GDD was established in Quebec in 1977 by Edwin Gaucher, Regis Desbiens and Rejean Desbiens. The production line, research and administration offices are located in Quebec City, Canada.

Instrumentation GDD is a world leader in high-tech geophysical instrumentation for mining and exploration geophysics. Since 1977, GDD has developed, manufactured and sold a wide range of electromagnetic (EM) and induced polarization geophysical instruments.

GDD's team of researchers, engineers and technicians is always committed to solving problems related to mining & exploration fields. The client satisfaction is first in their priorities list. GDD is renowned for its customer service and its very rugged and reliable instrumentation. GDD is considered a world leader in geophysical instrumentation and is always looking to innovate.