Pure DC has launched the first phase of its data center project in Seinäjoki, Finland, with Microsoft reportedly signed on to lease capacity at the site.As reported by Bloomberg, the first phase will see the development of 110MW of data center capacity, with an investment of around $1.7 billion.People familiar with the matter told the publication that Microsoft is among the customers set to lease capacity at the site.DCD has approached Pure DC and Microsoft for comment.Pure DC has been developing a data center project in Seinäjoki for at least a year, listing plans for a 500MW site across 370 acres. In April 2026, the company purchased a 22.3-hectare plot of land for €3.86 million ($4.55m) from the city, with three data center buildings set to be built on the site.The company has now increased this to 550MW, with plans to invest more than €7.5bn ($8.55bn) in the full buildout.The project, dubbed SJK01, is expected to bring around 3,000 construction jobs to the region, with works expected to run for a decade. The site will feature repeatable 40MW AI-ready modules equipped with direct-to-chip liquid cooling to support high-density workloads.Jaakko Kiiskilä, mayor of Seinäjoki Municipality, said: “Our partnership between the Seinäjoki region and Pure DC has been forged over the past two years, and I’m excited to see this part of our regional development strategy come to life. This project will bring major employment to the Seinäjoki area for years to come, and across many skills and trades."As well as the construction jobs and permanent roles there will be many other benefits for the area – business rates and property tax will be reinvested to benefit local residents, waste heat from the data center will be repurposed for our district heating network, and our partnership will also see Pure DC investing across a number of education and reskilling initiatives. Our joint belief is that this campus can be a catalyst for the creation of an even larger ecosystem of entrepreneurs, supply chain industries, and employment for residents.”The British ambassador to Finland, Laura Davies, added: “I am delighted by this major UK investment into Pure DC’s new site in Seinäjoki - the largest yet by a UK company in Finland. It's an example of the growing role of UK companies in financing and delivering digital infrastructure across Europe, which is a key component of building our shared data sovereignty."Seinäjoki is a city and the regional capital of South Ostrobothnia, in western central Finland.Earlier this year, Pure DC secured $2.7bn in financing.Founded in 2013, Pure is owned by investment firm Oaktree Capital Management. The company has developments in London (Brent Cross, Park Royal), the UAE (Abu Dhabi), Saudi Arabia (Riyadh), Spain (Madrid), Indonesia (Jakarta), Ireland (Dublin), the Netherlands (Amsterdam), and Finland (Seinäjoki). On its website, Pure says it has more than 500MW of capacity live or under development.