Management of Insinööritoimisto Mäkeläinen Oy, Elvak Oy and Lehto Invest Oy acquired Insinööritoimisto Mäkeläinen Oy from Lehto Group Oyj.

Lehto Group Oyj is a Finland-based company, which is primarily involved in the construction industry. The Company operates as construction partner for variety of buildings. The Company's activities are grouped by four segments: the Business Premises segment is focused on the construction of industrial premises and offices; the Housing segment is engaged in the construction of residential apartments; the Building Renovation segment offers building renovation services; the Social Care and Educational Premises segment provides construction services of care homes, schools and hospital hotels. Lehto Group Oyj offers to its customers 3D design, modularization and automated in-house factory production services, among others.