Polyfer AG is a Swiss engineering and manufacturing company, founded in 2016 and headquartered in Birr, Canton of Aargau. With modern facilities and a highly skilled team, we specialize in mechanical engineering, industrial plant construction, maintenance, machining, forging, and the production of spare parts. Our advanced machine park, equipped with CNC milling centers, turning machines, and automated welding technology, allows us to deliver precise, durable, and efficient solutions tailored to our customers’ needs.

We serve a wide range of industries by providing high-quality engineering and manufacturing services, from design and fabrication to assembly and maintenance. Thanks to our in-house expertise and flexible approach, we are able to implement projects of various scales, even under challenging technical requirements. By combining robust craftsmanship with innovative technology, Polyfer AG ensures reliable performance and long-term value for every project we undertake.