OHLAS started operations in 2011.
As the business expanded, a new limited company, OHLAS Consulting Oy, was established in 2021. All consulting, training, site management, and supervision activities were transferred to the new company.
In 2023, OHLAS Construction Oy was established to provide high-voltage power line installation services.
In 2025, when the OHLAS companies joined the Connecto family, a new corporate structure was introduced. OHLAS Group Oy was established as the parent company for all Finnish operations. At the same time, OHLAS Construction Oy was renamed to Connecto-OHLAS Oy.
The companies’ operations are fully focused on high-voltage power line and substation projects. Their clients mainly consist of contractors and local network companies.
We offer consulting, design, and installation services ranging from individual towers to larger-scale projects. Our installation services include foundation works, tower assembly and erection, and conductor installation.
We have participated in many international projects and can provide our services in several different languages.
