Swiss High-Tech for Global Markets

greenTEG develops, manufactures and markets thermal sensor and energy harvesting solutions. Our products classes consist of laser detectors, heat flux sensors, and customized sensor solutions for OEMs. greenTEG’s customers are active in markets such as building, industry, medtech and scientific.

We are supplying two main customer groups. Highly innovative OEMs integrate our technology to offer added value to their customers. Globally leading scientist use our sensors in experiments to generate new insights.


greenTEG’s thermal sensors (gSKIN®) offer ultra-high resolution of thermal parameters. Temperature differences of 10 μK as well as heat fluxes below 0.05 W/m2 can be resolved. The sensors are applied in diverse fields such as: Assessment of insulation quality (U-Value), material testing, process monitoring, fouling detection, mass flow measurement and thermal error compensation. The gSKIN® U-Value Kit is a plug&play solution for professionals in the area of building physics. gSKIN® sensors are integrated in OEM products and used for high-precision measurements in R&D. Data loggers for easy read-out and further processing of the data complement the product portfolio.

gRAY® laser power detectors enable fast and precise laser power measurements in a power range from 100 μW to 50W. gRAY® detectors are sensitive to all wavelengths from ultra-violet to medium-infrared and feature a fast response time. They are suited for the integration into power meters as well as laser sources and systems. gRAY® laser power detectors are available housed, mounted or as bare die components.

About the company

greenTEG’s technology is in development at ETH Zurich since 2002. Based on promising prototypes Wulf Glatz, Etienne Schwyter, Lukas Durrer and Peter Stein founded greenTEG in 2009. Since then the company has ramped up its production (starting 2011) and successfully launched numerous products. Our team is highly educated, interdisciplinary and driven by bringing a new technology to a broad customer base. We have a world-wide distributor network. All our products are made in Switzerland and RoHS conform.

greenTEG was awarded through multiple organization such as de Vigier, Climate KIC, STEP, Venture Kick etc.