Paris, France – December 7, 2021 –

Trescal, the global leader in calibration services, announced the acquisition of Cleanroom Management International (CMI) in Belgium, France and the Netherlands, and Aviatronik in Italy. These two companies add €13 million in total sales and over 100 calibration experts to the Group. The transactions mark Trescal’s seventh and eighth acquisitions this year. They are the 32nd  and 33rd since OMERS invested in April 2018.

Founded in 1991, Cleanroom Management International operates from five sites to serve a diverse portfolio of life science customers, including leaders in the pharmaceutical sector. It specializes in qualification of cleanrooms, HVAC systems and thermal mapping as well as calibration of particle counters and photometers.

Established in 1983, Aviatronik has two laboratories in Milan and Rome and is accredited in Radio Frequency. It serves 700 clients, particularly in the aerospace and defense industries.

Guillaume Caroit, CEO of Trescal: “These two acquisitions fit our strategy perfectly. Cleanroom Management International strengthens our life sciences offer in northwestern Europe, while Aviatronik’s Radio Frequency capabilities solidify our aerospace and defense services in southern Europe.”


Trescal is the global leader in calibration services. It offers an array of industries a single-source solution for calibration, measurement, repair, qualification, validation and asset management across the globe. Its technicians and experts carry out accredited and non-accredited services for all measured variables and measuring instruments in all technical domains, whether physical, electrical or mechanical. Trescal’s 4,100 team members perform more than 3.3 million operations per year, including 27,000 repairs across 150,000 types of instruments and 20,000 brands.

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Amélie Janson

Marketing and Communications Director

Tél. : +33 (0)6 02 13 33 84