About Us
In millions of products. Invisible, but essential.
Our Story
Since 1886, Zwirnerei an der Wutach has been a trusted name in specialized thread production. Located in the scenic Wutachtal valley in the southern Black Forest region of Germany, we've built our reputation on precision, quality, and reliability over more than 135 years.
What started in 1886 in Stühlingen as a thread mill powered by hydropower from the river Wutach has grown into a modern, fully automated production facility serving customers worldwide. But our core values remain unchanged: absolute commitment to quality, sustainable production, and personalized customer service.
Today, our threads are found in millions of products every day—from tea bags that bring comfort to millions, to hygiene products that accompany our daily lives, to industrial packaging that keeps goods safe. In millions of products every day — invisible, but essential.
Our Journey
Foundation
Swiss entrepreneur Albert Denzler establishes the Zwirnerei in Stühlingen, bringing international experience from the US textile industry. From the start, the company uses hydropower from the river Wutach.
Overcoming Adversity
A century flood destroys large parts of the facilities. Despite this setback, Albert Denzler invests in reconstruction, new machines, and expands the canal system.
Technological Progress
Installation of a Francis turbine improves energy supply. The company grows to become an important regional employer.
Second Generation
Franz Steinweg, son-in-law of Albert Denzler, joins the company and leads it through challenging times including inflation, economic crises, and two World Wars.
Electrification
Under Walter Steinweg's leadership, the plant is electrified, replacing the mechanical power transmission system and modernizing production.
Strategic Specialization
Gerd Steinweg takes over and initiates a decisive strategic shift, focusing on tea bag threads, retrieval cords, packaging industry threads, and food/hygiene applications.
Expansion & Certification
New production halls are built (1981, 1987, 1994) with modern machinery. Multiple certifications confirm high quality, hygiene, and safety standards.
Fifth Generation
The company is now led by the 5th generation of the Steinweg family. Today, over 70% of production is exported to more than 70 countries worldwide.
Quality First
Uncompromising quality standards in every thread we produce.
Sustainability
Responsible production for a better future.
Customer Focus
Personalized service and custom solutions.
Our Location
Our production site in Stühlingen combines its historic origins on the river Wutach with state-of-the-art manufacturing technology – supplying customers in over 70 countries worldwide.
Stühlingen, Black Forest, Germany
Modern production facility since 1886
Want to learn more about our products?
Discover how our premium threads can enhance your products, or get in touch with our team to discuss your specific requirements.