Development and series production of digital microsensors for flow and environmental measurement
Sensirion AG
Stäfa (Switzerland) · Debrecen (Hungary) · Branches in China, Japan, Korea, Taiwan, USA · Subsidiaries in Germany and the NetherlandsNew on Amplifa
About Sensirion
Sensirion AG is a manufacturer of digital microsensors and sensor systems headquartered in Stäfa, Switzerland. Founded in 1998 as a spin-off of ETH Zurich, the company develops and produces flow sensors for gases and liquids as well as environmental sensors for measuring temperature, humidity, VOC, CO₂ and particulate matter. In addition to series products, Sensirion offers custom sensor solutions, including mechanical design-in, development of complex algorithms and integration of software into embedded and cloud systems. Through its subsidiary Sensirion Connected Solutions, the company also develops wireless sensor networks and connectivity solutions. The sensors are used in the automotive industry, industrial applications, building and climate technology (HVAC), medical technology and consumer electronics. In fiscal year 2025, Sensirion achieved revenue of CHF 342.4 million with 1,280 employees at 14 locations and produced over 250 million sensors; the stock has been listed on the SIX Swiss Exchange since March 2018.
- Site
- CH-8823 Stäfa
- Processes
- Development and manufacture of environmental and flow sensor solutions (digital microsensors and, Custom sensor solutions: mechanical design-in, development of complex algorithms,, Series production of sensors (flow sensors for gases and liquids, environmental sensors for, Custom sensor solutions (Customized Solutions), Mechanical design-in, Development of complex algorithms, Integration of software into embedded and cloud systems, Development and manufacture of environmental and flow sensor solutions
- Materials
- Digital microsensors and sensor systems, Infrared spectroscopy, Microfluidic systems, Artificial intelligence / machine learning
- Founded
- 1998
- Employees
- 1280 (FTE, worldwide
- Industries
- Automotive industry, Industrial, Building and climate technology (HVAC), Medical technology, Consumer electronics, Household appliances
- 01
R&D (sensors, algorithms, software)
- 02
Series development and design-in
- 03
Production of microsensors
- 04
Quality assurance
- 05
Sales and support (Customized Solutions)
Technologies & Processes
Digital microsensors and sensor systems
Digital sensors for flow and environmental measurement in series products and custom solutions.
Infrared spectroscopy
Acquired technology (IRsweep) as a basis for gas analysis and Smart Gas Sensing.
Microfluidic systems
Technology of subsidiary Qmicro to complement the solutions portfolio.
Artificial intelligence / machine learning
Applied via subsidiary Aisight (Germany) for sensor algorithms and data evaluation.
Locations
Stäfa
CHHeadquarters
Debrecen
HUProduction site (factory, opened 2021)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacture of environmental and flow sensor solutions (digital microsensors andEngineering | – | – | – | >250 Mio. sensors per year | – |
| Custom sensor solutions: mechanical design-in, development of complex algorithms,Engineering | – | – | – | – | – |
| Series production of sensors (flow sensors for gases and liquids, environmental sensors forEngineering | – | – | – | – | – |
Additional services
Company History
- 1998
Founded as a spin-off of ETH Zurich by Moritz Lechner and Felix Mayer
- 2005
Opening of the headquarters in Stäfa, Switzerland
- 2006
One million sensors produced cumulatively
- 2014
Annual production of 75 million sensors
- 2018
Listing of Sensirion Holding on the SIX Swiss Exchange (March)
- 2021
Reached the milestone of one billion sensors produced; opening of the factory in Debrecen (Hungary); acquisitions of IRsweep, Qmicro and Aisight; founding of Sensirion Connected Solutions; acquisition of Auto Industrial Co. Ltd. (now Sensirion Automotive Solutions)
- 2025
Revenue CHF 342.4 Mio. (+23.8 % in CHF); 1280 employees, 14 locations, over 250 Mio. sensors produced
- 2026
Half-year revenue CHF 179.0 Mio.; increase of the 2026 revenue forecast to CHF 345–365 Mio.; ranked 3rd among the 100 most innovative companies in Switzerland