Innovation. Precision. SISO.
SISO stands for Swiss precision, technical expertise, and a passion for intelligent connection systems. What began as an engineer's idea is today a modular standard for efficient, sustainable, and creative constructions.
From the automotive industry to the infinite SIS oververse
The SISO story begins with a simple idea: rethinking screws. From a concept for the automotive industry emerged a patented fastening system that is now revolutionizing construction and solar technology.
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2020
milestone
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2020
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2020
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2020
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Vision & Values
Our vision: To create systems that connect people, ideas and materials efficiently, safely and responsibly.
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Innovation with foresight
We develop connection systems that simplify technology and open up new possibilities.
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Precision born of conviction
Every detail counts – Swiss engineering stands for quality and reliability for us.
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Sustainable and responsible
Resource-saving materials and durable systems are part of our DNA.
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Partnership on equal terms
We work closely with customers and partners – solution-oriented, practical and fair.
Josef Grüter – farmer, engineer, visionary
Josef Grüter combines down-to-earth practicality with technical excellence. An experienced farmer and engineer, he developed an innovative, patented screw system from an idea for the automotive industry, a system that now shapes the solar and metal construction sectors. With his hands-on approach, he leads SISO as CEO – driven by a passion for precision, Swiss quality, and sustainable innovation