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Competence in Stainless Steel since 1975

As a family-owned company, we think in the long term

For over 40 years, we have been manufacturing and assembling stainless steel process engineering plants, equipment, tanks and pipelines for the pharmaceutical and chemical industries, food and beverage industries, machinery and printing industries, as well as for water supply systems, municipal facilities and airports. Thanks to a flat hierarchy, we can respond to your needs quickly and flexibly and offer you turnkey solutions from a single source. Through competent expertise, many years of experience and highly qualified employees, we create an added value for you as a customer.

Do you have a specific project in mind? We develop the appropriate solution together with you, taking into account technological, innovative, user-oriented and economical design and production possibilities according to your needs.

High flexibility and exact implementation of specific customer requirements characterize us.

Swiss made

Swiss Quality

Since 1975, we have committed ourselves to bring swiss high-quality products to the market. In order to ensure that Swiss standards of quality are met in every sense, IST‘s products are exclusively produced by qualified staff at our location in Switzerland. 

Welding technology

We have over 40 years of experience in welding technology and master craftsmanship. We work exclusively with trained specialists, who have the welding test according to EN ISO 9606-1 (formerly EN 287-1).

General Contractor

We act as a general contractor and provide you with comprehensive, innovative and customized turnkey solutions. You have only one contract partner and thus reduce interfaces and the associated coordination effort.


We are certified according to the European Pressure Equipment Directive PED 3014/68/EU. Our products comply with a full range of European Directives and the highest internationally recognized standards of quality.

Expertise from one source

Engineering and Construction

Our engineers support you from design to execution and, if desired, take over the complete planning and construction of your plant.


On more than 4000 m2 of production area with a modern machine park, we process up to 2000 tons of stainless steel every year at our site in Thun.

Installation, Commissioning and Maintenance

Our trained engineers have many years of experience in the assembly of pipelines, tanks and complete process plants.

General Contractor

On request, we can act as a general contractor for integrated projects and assume the responsibility of coordinating all sub-contracts on your behalf.


With our in-house electrical department, we supply you with complete systems and apparatus with electrical and pneumatic control, PLC and required programming and startup.

Prüfverfahren und Einrichtungen

  • X-ray
  • Photo and video endoscoping
  • Ferrite content and oxygen measurement
  • Dye/colour penetration


As TÜV-certified CE Coordinator we support you in compliance with and implementation of the Machinery Directive 2006/42/EC.

Stainless Steel

Symbol for hygiene and high-quality material

"Only the consistently high chemical and mechanical resistance of stainless steel ensures consistently reliable quality, hygiene and aesthetics."
Stainless Steel Information Point (ISER)

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What we stand for


Durability instead of short-term profit maximization determines our actions.


Economical working and sustained action are a prerequisite for long-term company development.


We are sparingly working with natural resources and trying to minimize emissions.


We want to contribute fundamentally to the success of our partners.