Paris, France – July 17, 2023 –

Trescal, the global leader in calibration services, announced that it has acquired Unithree to open operations in Busan, Korea’s largest port. This brings Trescal’s Korean operations to 40M€ and 330 people over six locations. This is the first acquisition since EQT acquired a majority stake in Trescal this year.  

Founded in 2011 and merged with KCDI in 2018, Unithree represents 2M€ in sales and employs 25 people. It performs accredited calibrations in several domains. Its dimensional, force and balance capabilities will complement Trescal’s Korean technical expertise in the southern part of the country. Unithree serves a diverse client base in the automotive, shipbuilding, energy and metal forging industries. 

Guillaume Caroit, Trescal CEO: “We are delighted to welcome Unithree to the Trescal family. Under EQT, we will continue to expand in the thriving Asian market as we aim to achieve 300M€ in regional sales by the end of 2027.”


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. About 5,000 people work at Trescal around the world to perform 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

Tel : +33 (0) 6 02 13 33 84