Störi AG
Swiss family-owned specialist in heat pumps and heating technology, serving customers nationwide since 1947.
Last updated September 27, 2026
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Overview
Störi AG is a Swiss family-owned company specialising in heat pumps and heating technology (Wärmepumpen & Wärmetechnik). Headquartered at Sonnenrain 2 in Wollerau, in the canton of Schwyz, the company describes itself as a nationwide specialist and positions itself as a competence partner for sustainable energy supply. Its core business is the consulting, planning, installation and servicing of heat pump systems and related heating technology for private and commercial customers across Switzerland. The company traces its origins to 1947, when the business was founded. In 1949 it took on its first employees. In 1983 the company passed into the second family generation, and in 2024 it entered the third family generation. This long continuity is a central part of its identity: the official company page presents Störi AG as a family business with decades of experience and a stable, experienced team. Störi AG operates through a decentralised service and advisory network. Its website lists service technicians and customer advisers in numerous Swiss regions and cantons, including Schwyz, Zurich, Aargau, Bern, Fribourg, Thurgau and Central Switzerland. The company maintains a headquarters in Wollerau and a service hotline available daily from 7:00 to 21:00. Its service organisation is structured around regional managers for heat pumps in areas such as the Mittelland, Seeland/Bern/Fribourg, Zurich North, Central Switzerland/Lake Zurich and Eastern Switzerland. Leadership is organised around a board of directors and an executive team. Dr. Fritz Störi serves as President of the Board of Directors, Barbara Studer-Störi as Delegate of the Board of Directors, and Manuel Studer as Managing Director (Geschäftsführer). Timur Resch leads operational business. Other named roles include technical leadership for heat pumps and heating technology, service co-leadership, project coordination, customer advisory and back-office functions. The company's offering centres on heat pumps and heating technology, including advisory services, installation, maintenance and technical service. Its stated mission is sustainable energy supply, and it markets itself as "the leading company for sustainable energy supply" on its corporate page. As a private, family-controlled Swiss company, Störi AG is not listed on a stock exchange and does not disclose public financial figures in the available evidence.
History
Störi AG is a Swiss family business whose history dates back to 1947, when the company was founded. According to the company's own corporate history, the beginning was in 1947, and in 1949 the first employees joined the business. This early phase established the company as a small enterprise that would grow over the following decades. In 1983, the company passed into the second family generation. This transition marked a generational change in ownership and management, reinforcing the family character of the business. The company continued to develop its activities in heating and energy technology over the following decades. By 2024, Störi AG had entered its third family generation. The corporate page presents this as a milestone in a continuous family history spanning more than seven decades. The company describes itself as a family business and a competence partner for sustainable energy supply, with a team that includes many long-serving employees. Over time, Störi AG built a nationwide presence in Switzerland. Its website lists service technicians and customer advisers in multiple cantons and regions, including Schwyz, Zurich, Aargau, Bern, Fribourg and Thurgau, as well as regional managers for heat pumps in the Mittelland, Seeland/Bern/Fribourg, Zurich North, Central Switzerland/Lake Zurich and Eastern Switzerland. The company maintains its headquarters at Sonnenrain 2 in Wollerau and operates a service hotline available daily from 7:00 to 21:00. The company's leadership reflects its family ownership and professional management. Dr. Fritz Störi is President of the Board of Directors, Barbara Studer-Störi is Delegate of the Board of Directors, and Manuel Studer is Managing Director. Timur Resch heads operational business. The broader team includes technical directors, chief technicians, project coordinators, customer advisers and back-office staff. Störi AG's business has centred on heat pumps and heating technology, with services covering consulting, planning, installation, maintenance and technical support. Its stated focus is sustainable energy supply, and it markets itself as a leading company in this field. As a private family company, it does not publish financial statements or stock exchange information in the available evidence.
- 2024
Company enters the third family generation.
- 1983
Company passes into the second family generation.
- 1949
First employees join the company.
- 1947
Company founded.
Products and positioning
Swiss nationwide family-owned specialist and competence partner for heat pumps and sustainable heating technology.
Heat pumps
Heating technology systems
Heat pump installation and maintenance services
Energy consulting
Sources3 sources
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