On September 9, 2026, Google announced its largest single investment in Europe. The company commits at least €13 billion to Finnish data centers and energy infrastructure in 2027 and 2028, expanding the existing Hamina campus and adding three new sites in Kajaani, Muhos, and Vaala. For the construction sector, this is great news: thousands of hectares, dozens of buildings, and a construction program that will extend well beyond the two-year investment window.

Four Sites, One Regional Cluster
Google is not a newcomer in Finland. Back in 2009, it converted a former paper mill in Hamina into a seawater-cooled data center. It has invested around €4.5 billion there over 15 years, and the site’s waste heat already feeds Hamina’s district heating network. The new program shifts the center of gravity north, to the border of North Ostrobothnia and Kainuu.