Precision metrology

for industry and science

For 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 for the fields of research & development, calibration, mechanical engineering, optics and semiconductor industry, medical technology, nano metrology and geoscience.

Learn more


Made in Germany

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

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


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


Learn more about the wide range of possible practical applications of our devices. SIOS measurement technology is applied when precise and reliable measurement, e.g. for machine calibration, quality assurance, surface measurement or measurements in vacuum are required. 


Individually tailored solutions are one of our biggest strengths. Thanks to our many years of experience and high flexibility in addition to the modular design of our measuring systems, we can develop customized solutions for specific customer requirements. Particualrly our customers in the OEM secotor stand to benefit from this. 

International Representation

Proximity to our customers is important to us

Our 22 agencies for 30 countries provide optimal and comprehensive support to our customers. Our sales partners offer communication at eye level, both in terms of technical knowledge and language. They know the local market requirements in addition to cultural norms and practices. Our partners have extensive experience in the field of laser interferometric measurement technology and will find the perfect solution for your individual needs. 

Find a contact person



Currently, used measurement methods in industrial manufacturing are reaching the limits of what is technically feasible.

SIOS experts develop…

Wolfgang Tiefensee, Thuringian Minister of Economic

Economics Minister…

Thuringia's Minister for Economy, Science and Digital Society Wolfgang Tiefensee congratulates Dr. Denis Dontsov (Managing Director of SIOS), Dr. Ilko…

Top 100 honor by science journalist Ranga Yogeshwar

Honored as Top 100…

Ranga Yogeshwar honors SIOS Meßtechnik GmbH on the occasion of its success in the TOP 100 innovation competition. The award ceremony as part of the…



13th Jena Laser Conference

November 03 - November 04, 2022
Technical event of the laser community

Precision Fair 2022

November 16 - November 17, 2022
Trade fair for the entire value chain of precision…