Technical Consulting & Engineering in
Immensee

Durrer Spezialmaschinen AG

Since 1990 · 1–10 empl.·4.8(9)

Durrer Spezialmaschinen AG designs and manufactures custom special-purpose machines and complete solutions in mechanical, production and process engineering. Core areas include automation and robotics, vacuum technology (vacuum cooling, drying, welding) and machines for the graphic, food, bakery and packaging industries, with aftersales, revisions and service support.

Polytechnik Swiss AG

Since 2010 · 1–10 empl.

Polytechnik Swiss AG is a member of the Polytechnik group and a contact for the group’s biomass energy technologies, including combustion systems, gasification and carbonisation. The group’s scope covers technical solutions and services such as planning, engineering, manufacturing, assembly and commissioning of biomass plants.

Durrer Group AG

Since 2025 · 1–10 empl.

Durrer Group AG develops and produces special-purpose machines as well as automation and robotics solutions for various industrial applications. Its portfolio also includes vacuum technology and custom machine solutions, complemented by service, maintenance and after-sales support.

Staark Consulting GmbH

Since 2011 · 1–10 empl.

Staark Consulting GmbH provides services in the areas of engineering, project management, and interim management. They support customers in project development, planning, and implementation, as well as in process optimization and departmental control. Their core activities include creating specifications, conducting tenders, cost optimization, production workflows and optimization, as well as coordinating with subcontractors. They also offer interim management services, where they can act as key performers who can be deployed on short notice to support companies in reorientation, process optimization, reorganization, and departmental control.

renma AG

Since 2021 · 1–10 empl.

The company's core activity is the planning, implementation and management of photovoltaic systems, as well as consulting and implementing energy concepts for companies and property owners. This also includes financing and operating plants, creating business cases and analyzing real estate portfolios for potential for renewable energy.

anteris helvetia AG

Since 2018 · 1–10 empl.

Cominvestment AG

Since 1995 · 1–10 empl.

DARA Swiss GmbH

Since 1999 · 1–10 empl.

uniwerk GmbH

Since 2007 · 1–10 empl.

Horstink (aviation and aerospace) advisory

Since 2025 · 1–10 empl.

Cromanite AG Engineered Solutions

Since 2026 · 1–10 empl.