Welcome to AZ‑Glasfasertechnik GmbH in Amriswil – your expert partner for powerful fibre optic solutions across Eastern Switzerland. From FTTH to FTTS or FTTB, we plan, install, splice, and connect your fibre lines from the central hub to your premises. Whether for homes or businesses, we build future-ready network infrastructures. With tailored consulting, precise execution, and on-site support, we deliver full-service fibre solutions that keep your data flowing fast and reliably.

Zünd Präzisionsoptik AG and Optivac AG in Diepoldsau combine plan optics, micro-optics and optical coating expertise under one roof. For over 50 years, we have manufactured high-precision compact and micro prisms, filters, mirrors and custom bonding systems for medical technology, industry, metrology, laser optics and telecommunications. Optivac provides 200+ coating processes, from anti-reflective layers to mirror and beamsplitter coatings. With cutting-edge technology and Swiss precision, we deliver prototypes and high-volume production.

MFS-Tech is your Swiss specialist for professional cable laying solutions. We offer cable pulling winches, drum trailers, inspection cameras, and accessories for efficient installation in fiber optics, industrial cabling, and energy infrastructure. Our mobile systems ensure flexible and precise cable work on site. Trusted by contractors, utilities, and technicians across Switzerland.