GREENTEG AG

Their core work

GREENTEG AG is a Swiss technology SME specializing in heat flux sensor technology, most notably their proprietary gSKIN sensor product line. They develop and commercialize thermal measurement solutions that can be embedded in both wearable devices and building envelopes to capture real-world energy flow data with high precision. In the health domain, they applied this technology to continuous, non-invasive body temperature monitoring via wrist wearables. More recently, they have extended the same sensing expertise into the built environment, contributing measurement and verification systems that assess how building envelope products perform thermally in real operating conditions — a critical input for certifying nearly Zero Energy Buildings.

What they specialise in

How they've shifted over time

GREENTEG's first H2020 project (2018–2019) was squarely in the digital health and wearables space, applying their gSKIN heat flux sensor to body temperature monitoring — a consumer-facing, health-oriented application. By their second project (2021–2026), they had pivoted the same underlying sensor technology toward building physics and the built environment, contributing to envelope product testing for nearly Zero Energy Buildings. The trajectory is clear: the core heat flux IP stays constant, but the application domain has shifted from human skin to building skins — signalling a strategic move toward the fast-growing building decarbonisation market.

GREENTEG is repositioning its heat flux sensor technology as a building energy measurement tool, making them an increasingly relevant partner for nZEB certification, envelope product validation, and smart building projects.

How they like to work

GREENTEG has shown they can operate both as consortium leader (gSKIN BodyTemp, SME-1) and as a specialist contributor in a larger Innovation Action (MEZeroE). Their coordinator role was on a small feasibility grant, while their participant role sits within a much larger, multi-year project — suggesting they are comfortable leading small focused efforts and joining as a technical specialist in complex programmes. With 28 unique partners across 10 countries from just two projects, their network is notably broad relative to their size.

Despite having only two H2020 projects, GREENTEG has already connected with 28 distinct consortium partners across 10 countries — an unusually wide network for an SME of this scale. The MEZeroE project, a large Innovation Action, accounts for most of this reach and suggests GREENTEG operates comfortably in pan-European, multi-partner settings.

What sets them apart

GREENTEG occupies a rare niche: a hardware SME with a proprietary sensor product (gSKIN) that is application-agnostic — validated in both medical wearables and building energy measurement within the same H2020 portfolio. Most measurement companies specialise in one domain; GREENTEG's cross-domain track record makes them a flexible partner for any consortium that needs real-world thermal data capture. For a building or health consortium looking for a small, fast-moving Swiss company with proven sensor hardware and EU project experience, GREENTEG is a low-overhead, high-credibility choice.

Highlights from their portfolio

• gSKIN BodyTemp
  GREENTEG served as coordinator on this SME Phase 1 feasibility grant, demonstrating their capacity to lead EU projects independently and showing the origins of their heat flux sensor commercialisation strategy.
• MEZeroE
  Their largest project by far (EUR 502,425, running to 2026), contributing heat flux measurement capabilities to a pan-European Innovation Action targeting next-generation nearly Zero Energy Building envelopes.