The Company.

Interferenz FWT AG has established itself as a recognized partner for high-quality CNC machining and optical assemblies in the precision manufacturing industry. Founded and headquartered in Au/SG, Switzerland, we combine Swiss engineering excellence with modern manufacturing technology.

Our vertically integrated production facility allows us to control every step of the manufacturing process — from material procurement through machining, assembly, cleaning, and final quality inspection. This integration is the foundation of our ability to deliver consistently high quality with short lead times.

ISO 9001 certified (2024–2027), our quality management system ensures that every component meets the exacting standards of our clients in the laser, optical, semiconductor, and defense industries.