Escher Wyss & Cie.
Corporate brand
UnclaimedHistoric Swiss engineering and manufacturing company known for turbines, hydraulic machinery, steam equipment, and shipbuilding.
Last updated August 24, 2026
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Overview
Escher Wyss & Cie. was a Swiss industrial engineering and manufacturing company founded in Zürich in 1805 by Hans Caspar Escher and Salomon von Wyss. It began as a textile-spinning enterprise, but its business soon broadened into machinery production for the textile sector and then into a much wider range of heavy engineering activities. Over the course of the nineteenth and twentieth centuries, the company became associated particularly with hydraulic machinery, water wheels, water turbines, power-transmission equipment, steam engines, cooling systems, and turbines for industrial and power-generation applications. A major turning point came in 1835, when Escher Wyss entered shipbuilding. The company manufactured ships as well as marine boilers and steam engines, establishing a durable connection with Swiss lake and river navigation. Its work included paddle steamers for Lake Zürich and Lake Lucerne. Among the best-known vessels associated with the company were the Lake Zürich paddle steamers Stadt Zürich, completed in 1909, and Stadt Rapperswil, completed in 1914, together with the Lake Lucerne steamers Unterwalden and Gallia. These vessels later became important examples of Swiss industrial and maritime heritage. After 1860, under the direction of Hans Zoelly, Escher Wyss increasingly concentrated on hydraulic systems, steam engines, and cooling technology. The company also supplied equipment for hydroelectric projects, including work connected with Norsk Hydro. From 1904 to 1929 it produced steam turbines for thermal power plants, ships, and locomotives. This combination of power-generation equipment, marine engineering, and specialized industrial machinery made Escher Wyss a significant representative of Switzerland's heavy-engineering sector. The company's history also includes a serious wartime controversy. During the Second World War, Escher Wyss supplied the German war effort and manufactured flamethrowers. This involvement forms part of the difficult industrial history of Swiss companies that maintained commercial relationships with Axis powers during the war. The available reference material does not provide enough detail to quantify the company's wartime production or establish a separate postwar legal outcome. Escher Wyss continued as an independent company until 1969, when it was taken over by Sulzer AG. Its industrial activities subsequently became connected with the Andritz group. The Escher Wyss corporate identity eventually disappeared as an independent operating entity, and the company was closed in 2014. The Zürich quarter of Escher Wyss preserves the name of the former industrial enterprise and reflects its long association with the city's manufacturing landscape. The company's surviving machinery, vessels, and engineering legacy illustrate the transition from nineteenth-century textile mechanization to modern hydraulic, steam, marine, and energy technology.
History
Escher Wyss & Cie. was established in Zürich in 1805 by Hans Caspar Escher and Salomon von Wyss. The enterprise initially operated in textile spinning, reflecting the importance of mechanized textile production to early nineteenth-century industrialization. It soon expanded into a machine shop producing textile machinery and other mechanical equipment. The company diversified significantly during the nineteenth century. It manufactured water wheels, water turbines, and power-transmission systems, developing capabilities that later became central to its identity as a power and heavy-engineering business. In 1835 it entered shipbuilding and began producing ships, boilers, and steam engines. This work connected Escher Wyss to Switzerland's inland navigation industry, especially the steamship services operating on the country's major lakes. From around 1860, the company operated under the direction of Hans Zoelly and focused increasingly on hydraulic systems, steam engines, and cooling equipment. Its hydraulic expertise supported hydroelectric development, while its steam technology served industrial and transportation applications. The company supplied equipment for projects associated with Norsk Hydro and became active in the manufacture of steam turbines. Between 1904 and 1929, these turbines were produced for thermal power stations, ships, and locomotives. Escher Wyss also made notable contributions to Swiss lake navigation. It built the paddle steamers Stadt Zürich and Stadt Rapperswil for the Dampfbootgesellschaft, as well as the Lake Lucerne vessels Unterwalden and Gallia. The first two Zürich vessels are recognized in Switzerland's inventory of cultural property of national and regional significance. Their preservation provides a visible reminder of the company's role in marine engineering and the industrial history of Swiss public transport. The company's wartime record is controversial. During the Second World War, it supplied the German war effort and manufactured flamethrowers. The available reference does not provide a detailed account of the scale of this production, the commercial arrangements involved, or any subsequent legal proceedings, but the activity remains an important part of the company's historical assessment. Escher Wyss remained in existence as a distinct company until Sulzer AG acquired it in 1969. Its industrial heritage later became associated with the Andritz group. The former enterprise was ultimately closed in 2014. The Zürich district named Escher Wyss preserves the company's name and marks the location's long connection with the firm's industrial operations. Across more than two centuries, the company moved from textile machinery into a broad engineering portfolio encompassing hydraulic power, steam and turbine technology, shipbuilding, cooling systems, and specialized mechanical production.
- 2014
Company closed
[1]The former Escher Wyss enterprise was closed after its later association with the Andritz group.
- 1969
Acquired by Sulzer AG
[1]Sulzer AG took over Escher Wyss, ending its independent corporate existence.
- 1929
Documented steam-turbine production period ends
[1]The reference identifies 1929 as the end of the company's stated 1904–1929 steam-turbine production period.
- 1914
Stadt Rapperswil completed
[1]The company built the Lake Zürich paddle steamer Stadt Rapperswil.
- 1913
Gallia completed
[1]Escher Wyss built the Lake Lucerne paddle steamer Gallia.
- 1909
Stadt Zürich launched
[1]The company built the paddle steamer Stadt Zürich for the Dampfbootgesellschaft.
- 1904
Steam-turbine production period begins
[1]The company entered a documented period of producing steam turbines for thermal power plants, ships, and locomotives.
- 1902
Unterwalden completed
[1]Escher Wyss built the Lake Lucerne paddle steamer Unterwalden.
- 1860
Greater focus on hydraulic and steam engineering
[1]Under Hans Zoelly's direction, the business concentrated more strongly on hydraulic systems, steam engines, and cooling systems.
- 1835
Entry into shipbuilding
[1]The company expanded into ship production and began making marine boilers and steam engines.
Products and positioning
A diversified Swiss heavy-engineering manufacturer that evolved from textile machinery into hydraulic power equipment, steam and turbine technology, marine engineering, and specialized industrial manufacturing.
Hydropower and industrial equipment
Hydraulic machinery
Escher Wyss produced water wheels, water turbines, and broader hydraulic systems. These products supported mechanical power transmission and hydroelectric installations, making hydraulic engineering one of the company's defining areas of expertise.
Power-generation and propulsion equipment · 1904
Steam engines and steam turbines
The company manufactured steam engines and, particularly from 1904 to 1929, steam turbines for thermal power plants, ships, and locomotives. These products extended its engineering capabilities from water power into thermal energy and transportation.
Shipbuilding · 1835
Ships and marine machinery
Beginning in 1835, Escher Wyss built ships and supplied marine boilers and steam engines. Its surviving paddle steamers on Lake Zürich and Lake Lucerne are among the clearest examples of its marine-engineering work.
Industrial machinery
Textile machinery
Textile machinery was an early product line developed after the company's original textile-spinning activity. It provided the foundation for the transition from textile manufacturing into general machine building.
Industrial systems
Cooling systems
Cooling systems formed part of the company's later engineering portfolio, alongside hydraulic systems and steam engines. The available reference does not specify individual models or markets.
Controversies
Supply to the German war effort during the Second World War
Escher Wyss supplied the German war effort during the Second World War and manufactured flamethrowers. The available source identifies the activity but does not provide sufficient detail about production volume, contracts, or postwar consequences.
Brand decisions
1969
Sale to Sulzer AGM&ABackground
After more than 160 years of independent operation in Swiss engineering and manufacturing, Escher Wyss entered a larger corporate structure.
Action taken
Sulzer AG acquired the company.
Aftermath
Escher Wyss ceased to operate as an independent company and its industrial legacy later became associated with the Andritz group.
1835
Diversification into shipbuildingStrategyBackground
The company had begun with textile spinning and textile machinery but was expanding into broader mechanical engineering.
Action taken
It entered shipbuilding and added marine boilers and steam engines to its manufacturing portfolio.
Aftermath
Shipbuilding became a significant part of the company's history, including the production of notable Swiss lake steamers.
Sources1 sources
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