Mechanical engineering in
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Walter Wettstein AG, Spezialunternehmung für Kältetechnik

Since 1953 · 21–50 empl.·4.5(13)

Walter Wettstein AG, Spezialunternehmung für Kältetechnik plans, builds and maintains industrial refrigeration systems, heat pumps, ice-rink installations and propane systems. Its services include engineering, automation, operational optimisation, maintenance and training.

REFRION SCHWEIZ GmbH

Since 1995 · 11–20 empl.

The core activity of Refrion is the development, manufacture and distribution of industrial cooling solutions, particularly dry coolers, air coolers, condensers and heat exchangers for various applications such as process cooling, data center cooling, industrial and commercial refrigeration systems, as well as household air conditioning systems. The company offers standardized and customer-specific solutions and focuses on innovative technologies with low environmental impact.

Orgelbau Wälti GmbH

Since 2025 · 1–10 empl.

Orgelbau Wälti GmbH is an organ building company focused on new organ construction, restorations, alterations and refurbishments, maintenance, and rental instruments. The company plans and builds organs with an emphasis on craftsmanship, sound design, and solutions adapted to each space.

Compact Image AG-Ciag

Since 1991 · 1–10 empl.

The core activity of Compact Image AG is the supply of components in the field of refrigeration, air conditioning and energy technology. The company offers customer-specific solutions in the areas of cooling, air conditioning and energy optimization and distributes products such as plate heat exchangers, recoolers, condensers and heat exchangers, which mainly come from European production.

Thermokey Schweiz GmbH

Since 2001 · 1–10 empl.