Finland’s YIT Corporation has been selected as the main contractor for TikTok’s major data center project development in Kouvola, signaling a move from planning into execution for one of the region’s largest digital-infrastructure projects. The client, Hyperco Oy, via its subsidiary Hyperco Fin HoldCo 1 Oy, announced the contract noting that the facility will span approximately 28,000 meters squared, including a data-hall building, office space and related external site works.
Construction is scheduled to begin at the end of October 2025, with completion targeted for May 2027. The contract value is undisclosed, but will be added to YIT’s order book for Q4 2025.
Kouvola Data Center Project Factsheet
Project Name: Kouvola Data Center
Location: Hiivuri/Koria industrial area in Kouvola, Finland
Developer/Owner: Hyperco Fin HoldCo 1 Oy
Main Contractor: YIT Corporation
Building Size: Approx. 28,000 m2
Construction Start: End of October 2025
Target Completion: May 2027
Key Features: High-performance digital infrastructure, regional jobs, domestic construction
Investor/Tenant Link: The facility is part of TikTok-Hyperco data center project deal in Finland. This is under Project Clover – a data localization program announced as a 1 billion euros investment in Finland by TikTok.
Timeline for the Data Center Project
May 2025: TikTok publicly announces its 1 billion euros investment in a Finnish data center in Kouvola, developed by Hyperco.
June 2025: Hyperco confirms the Kouvola facility will serve TikTok-owner ByteDance. Land acquisition and permitting in the Koria area also kicked off.
October 20 2025: YIT selected as main contractor for the Kouvola data center project. Construction set to begin end of October.
May 2027: Completion of the facility and operations hand-over.
Outlook on the European Data Center Market
The Kouvola facility marks a significant stride in Finland’s push to attract digital-infrastructure investment as projects like TikTok’s Clover want to ensure European user data is increasingly stored regionally. The facility is also one of the first large-scale hyperscale data-centers in Finland with a major global tenant tied to data sovereignty. These continually point toward Europe’s increasing want of data-localization and push for better security mandates.
Finland also offers stable electricity supply, including renewables, has favorable cooling climate, established connectivity and a skilled workforce. These factors make the country increasingly attractive for large-scale digital‐infrastructure builds like the TikTok-linked Kouvola data center.
This milestone also reinforces Kouvola’s growing role in Finland’s digital-infrastructure strategy and aligns with broader global trends in hyperscale and secure data-center investment. This contract also comes as tech clients continue to seek low-carbon jurisdictions with renewable energy supply.
For the region of Kouvola, the data center project investment also brings potential economic leverage. This includes construction jobs during the build-phase and long-term operations employment. It also affirms Finland’s aspirations to be a digital-infrastructure hub.
At the same time, the project also carries execution risk. The large scale and tight timetable with start in Q4 2025 and completion by mid-2027 will demand extensive coordination. This is to ensure supply chain readiness, energy cost effectiveness, and regulatory compliance, especially given the high-profile tenant linked to the project.
