Jyrki Kalervo Huttunen

Part of Onvest Oy, Puurakentajat Group Oy provides wood building construction and renovation services. The company is based in Helsinki, Finland. The Finnish company was founded in 2006. The CEO is Mikko Leino. Puurakentajat Group was acquired by Onvest Oy on January 23, 2023.

Environics Oy provides industrial gas detection and chemical, biological, radiological, and nuclear (CBRN) monitoring solutions. Its products include hazardous gas monitors for ambient air, process gas, and stack emissions, as well as government early warning CBRN detection systems. The company serves industrial, government, and military organizations. Environics was founded in 1987 and is headquartered in Mikkeli, Finland.

Oplatek Group Oy provides optics solutions. It combines its Optics and Optomechanics expertise to develop optimal Optics manufacturing and assembly solutions for industrial device manufacturers. It provides services such as Product Development; Prototyping; Testing; Productization; Serial Production; and Quality Control. It also supplies fiber bundles and cables and also other optical components for various analyzers and medical devices. The company was founded in 1984 and is headquartered in Leppavirta, Finland.