TEMcompany started with the dream of building next-generation imaging solutions for solving today’s water problems.

This dream grew from research in the HydroGeophysics Group at Aarhus University, where work has focused on geophysical imaging systems for over 30 years.

During this time, the limited performance of the commercial instruments available to the department caused deep frustration. The research was consistently pushing for better, faster, and more robust measurements and transparency on the instruments’ influences on data. These influences are known to alter measured data significantly but are often ignored, regarded as industry secrets or not of interest to manufacturers.

The team at the university was consistently driving TEM technologies forward but became increasingly frustrated at the speed at which the academic outputs permeated into the broader commercial sector. These frustrations propelled the decision to found TEMcompany to build better, more reliable and best-value instruments in the water sector.

In 2015, during a meeting with long-time partners in Central Region Denmark, they highlighted the problem that tracking the migration of effluents was severely hindered by an inability to image the geological layers controlling the water flow accurately. Based on years of past work with the SkyTEM system, we proposed developing a fast transient electromagnetic towed system tailored to delivering much-needed high-resolution rapid mapping capabilities at the tens of hectares scale.

Two years later, in September 2017, after focused research, numerous frustrations, and more than a few rainy Danish field days, we completed the first surveys with our proposed system. Under an EU Interreg and Innovation Fund Denmark project, we invented what became known as the tTEM system.

Using the tTEM system, we were able to see highly detailed images of the subsurface in full 3D for the first time. Everywhere we went, the geology revealed itself to be far more beautiful and complex than anyone expected. Motivated by the incredible images being produced, we continued to develop the system further across many research projects. In parallel, we adapted the SkyTEM processing/inversion software to streamline and optimise data handling for the new tTEM system.

In 2020, it became clear that we had taken the system within the Aarhus University research environment as far as possible. We had received our first requests from partners abroad to purchase tTEM systems. We also began a close collaboration with the Poul Due Jensen | Grundfos Foundation (PDJF), undertaking several successful surveys in refugee camps and African host communities. We decided to create Aarhus GeoInstruments to commercialise the tTEM system. Launching the company during a global pandemic was a challenge! We survived and thrived, and by 2022, we had grown to four people working full-time at the company.