Precision metrology

for industry and science

Since over 30 years SIOS has been one of the leading companies in precision measurement technology. We offer high quality standard sensors as well as customized OEM solutions, e.g. for the fields of research & development, calibration, mechanical engineering, optics and semiconductor industry, medical technology, nano metrology and geoscience.

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Made in Germany

SIOS develops and manufactures laser interferometric measurement technology and precision measurement devices for calibration and nano measurement technology for the measurement of length, angle, vibration, straightness, temperature, force and other measured variables with the highest resolution and low measurement uncertainty.

Scientists, engineers, metrologists, quality inspectors, buyers all over the world trust SIOS precision metrology.


Find the right SIOS product for your measurement task from high-precision length measurement to continuous 5 DOF measurement to measurement of nanostructures using laser interferometers, laser vibrometers, probes, nano metrology, stabilized lasers, climate measurement ...


Learn more about the diverse application possibilities of our devices in practice. SIOS measurement technology is always used when precise and reliable measurement results are required, e.g. for machine calibration, quality assurance, surface measurement, measurements in vacuum ...


Individual solutions are our strength. Thanks to our many years of expertise, high flexibility and the modular design of our measuring systems, we develop customized solutions for specific customer requirements. Our customers in the OEM sector in particular benefit from this.

International Representation

Our customers are important to us

Our 23 agencies in 21 countries provide an optimal and comprehensive support. Our sales partners offer communication at eye level, both technically and linguistically. They know the local market requirements and cultural particularities. Our partners have extensive experience in the field of laser interferometric measurement technology and will find the perfect solution for your individual challenges. 

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After LASER World of PHOTONICS in the last week of April, the 34th Control - Trade Fair for Quality Assurance came to an end on Friday, May 06, 2022.

Our team is ready to go for LASER World of PHOTONICS in Munich.

Two exciting days around the topic of interferometry are behind us




May 30 - June 03, 2022
22nd International Conference & Exhibition

W3+ Fair 2022

July 06 - July 07, 2022
Interdisciplinary platform for the high-tech industry

AMB 2022

September 13 - September 17, 2022
International exhibition for metal working