Expert in demanding industrial cleaning and inspection

FinnSonic designs and manufactures process solutions for Fluorescent Penetrant Inspection (FPI) and cleaning solutions for various industries and MRO.

40 Years of History

FinnSonic Oy’s story began in 1979. Today we are a growing company, loacted in Lahti Finland.

Advantages of ultrasonic cleaning

Cleanliness is proven to have a significant effect in production quality, efficiency and results. Short payback time, smaller production costs and environmental friendliness form the basis of our product and service offering. In particular, our core competencies are ultrasonic cleaning solutions.

Quality certification

FinnSonic maintains and develops a certified, ISO 9001:2015 standard-compliant quality system.

We are also committed to upholding best business practice in all its business operations and operating in a sustainable and responsible manner. These principles apply to all our personnel, regardless of their duties or position within our organisation. We also expect that our partner organisations operate in a responsible fashion, too.


FinnSonic is using 100% renewable energy from local sources at the Lahti factory.

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