Founded in 1991, the headquarters of IST AG in Ebnat-Kappel, Switzerland are located in the mountain region of Toggenburg in canton St. Gallen. 

Our modern manufacturing facility includes a large production area with well-equipped clean rooms and machinery to produce a variety of sensors customized to our customers' needs. The flexible production facility allows us to produce large quantities to small batches of customized sensors. In addition to production, the headquarters also houses our research and development department as well as sales, administration (accounting, marketing and human resources) and a canteen with a wide selection of menus, salads and vegetarian dishes.

Virtual Tour

Company Profile

Company Profile

With more than 30 years of experience Innovative Sensor Technology IST AG is one of the leading manufacturers of physical, chemical and biological sensors. Our objective is to be the global leader in standard and customized sensor technology – empowering our customers to provide new levels of innovation and product design to deliver to their markets worldwide.

IST AG specializes in the development and manufacturing of thin- and thick-film platinum and nickel RTD temperature sensors, thermal mass flow sensors, capacitive humidity sensorsconductivity sensors and biosensors. In addition to development and manufacturing of standard sensors, our highly qualified technical team offers consulting and R&D tailored to specific customer requests in the field of sensor technology.

IST AG is a company of the Endress+Hauser Group, headquartered in Reinach in north-western Switzerland.  Endress+Hauser is among the global leaders in measuring instruments, services and solutions for industrial process engineering.


R&D engineer

Research & Development

IST AG is a global team of experts in sensor technology who place great value on understanding the customer's business and requirements. With more than 30 years of experience in developing new technologies or customer-specific solutions, our customers can benefit from a comprehensive service.

Read more
Deposition of substrates


IST AG sources only the highest materials from our trusted network of suppliers. Our facility in Ebnat-Kappel allows for a streamlined production process that is controlled at every step.

With our development, production and administration we cover an area of 13,500 m2 in Switzerland.

Clean room ISO 5 >1,000 m2
Production 3.700 m2

Read more

Quality control

IST AG is certified according to ISO 9001:2015 and ISO 14001:2015. Appropriate quality management systems and processes are part of our day-to-day work. Our processes are regularly audited and optimized according to business requirements.

Read more
R&D consulting

Customer service

At IST AG we cooperate closely with our customers and have personal contact throughout the entire process.

Read more


Innovative Sensor Technology IST AG
Stegrütistrasse 14
9642 Ebnat-Kappel

Headquarters Switzerland
Contact request