Incorporated in 1962, Geonics originated with the development of the patented EM16 VLF-EM, which became the exploration industry standard for ground VLF instrumentation. Equipment manufactured in the early years included surface, fixed wing, and helicopter EM systems for the mineral exploration industry.

By specializing in electromagnetics, Geonics has been able to develop, over the years, a broad range of unique instrumentation for an increasingly diverse field of applications. With the development of the EM31 Ground Conductivity Meter in 1975, Geonics began to service industries with an interest in near-surface information including engineering, geotechnical and environmental markets. Later development of the EM34-3 and EM38 Ground Conductivity Meters further expanded the range of applied markets to include ground water exploration, agriculture and archaeology. Requirements within the environmental industry to monitor the vertical distribution of ground water contamination led to the development of the EM39, a highly sensitive borehole conductivity probe.

Using over 15 years of experience in the development of time-domain electromagnetic (TDEM) systems, Geonics introduced the versatile, digital PROTEM TDEM system. When the receiver is combined with one of the three available transmitters the PROTEM systems cover a full range of applications from shallow environmental and ground water investigations to deep resistivity soundings and 3-component mineral exploration.