Our experts

Our team consists of more than 65 experts, specializes in developing, implementing and managing green and environmentally-friendly solutions to energy and water problems. Below you will find a selection of our team with a special attention to international challenges.
Managing Director
Martijn van Aarssen

Martijn is managing director of IF Technology and is involved in the business development for implementation of systems for sustainable heating and cooling. Geothermal Energy and Underground Thermal Energy Storage (UTES; shallow and deep) play a prominent role alongside other sustainable technologies, such as surface water energy, solar thermal systems and district heating and cooling. In his company, he develops guidance for the ambitions and interests of seventy highly educated and critical consultants and engineers. Martijn initiates new innovative concept developments and is manager of sustainable projects. He is every day working on new product-market combinations. He focuses in particular on markets such as government, built environment, and utilities.

I thrive on creating customer challenges by delivering real added value to the solution.

International business manager
Bas Godschalk

Sometimes, a simple question is a big challenge. Would it be possible to make an ATES system on this site? And how are we going to organize the realization, and can you guarantee that it will work in our soil? I love it to work on complex projects and especially in serving our international clients with their geothermal challenges. With my experience I would like to support you with your foreign ambitions.

Turning complex issues into practical solutions that work, that makes customers and I happy.

Senior specialist geothermal energy
Nick Buik

From my civil technical and geohydrological background, I am able to approach subsurface related issues from multiple angles. I use this knowledge to identify and describe the possibilities as well as to quantify the risks and uncertainties in geo-energy related projects. My qualities lie in the translation of the theory into practice.

My passion is finding pragmatic solutions for challenging and complex issues, where quality and customer satisfaction come first for me.

Senior hydrogeologist
Benno Drijver

I work at IF Technology since 1999. I use scientific knowledge to solve practical issues for projects and research questions concerning ATES-systems and deep geothermal systems. My typical experience includes hydrogeology, modelling of groundwater flow and thermal transport, geochemistry and soil mechanics.

Driven by curiosity.

Senior consultant sustainable energy
Rob Kleinlugtenbelt

At IF, I have been consulting on sustainable heat, cold and electricity since 2009. In my work, I match energy demand and renewable sources into practical and sustainable energy solutions. I test these solutions for financial and technical feasibility.

I like to design simple and sustainable solutions for complex energy issues.

Senior consultant sustainable energy installations
Herman Velvis

I am a very passionate technician, who operates from the initiative up to and including the exploitation. My expertise of work is the cutting edge of energy technology, hydraulics and control technology. I’m a good listener and like collaboration in energy challenges and learning from realized systems.

I like to think in simple and sustainable solutions for complex energy challenges.