TikTok has once again decided to strengthen its European infrastructure with a second major investment in Finland. The company confirmed on April 7 a new €1 billion investment to build a data center in Lahti, located in the southern part of the country, as part of its strategy to store and safeguard European user data within the region. This operation adds to the previous investment announced in 2025 for its first Finnish data center in Kouvola and reinforces Finland’s role as one of its key bases for European deployment.
This decision is not made in a political or industrial vacuum. TikTok has been trying for years to address regulatory uncertainties regarding the handling of European user data, especially concerning its relationship with ByteDance. It is doing so through Project Clover, its digital sovereignty initiative in Europe. According to the company, this program mobilizes €12 billion and is designed to protect data for over 200 million European users via dedicated regional infrastructure and strengthened controls—technological, operational, and governance-related.
Finland gains prominence in TikTok’s strategy
Lahti will be TikTok’s second major facility in Finland. The company had already announced in May 2025 a €1 billion investment in Kouvola, where its first Finnish data center is under construction with local developer HyperCo. TikTok presented this project as a core part of Project Clover and as the beginning of its direct presence in the Nordic country.
Now, the group expands this effort with a new installation in the Kiveriö district of Lahti. Reuters reports that the new infrastructure will start with an initial capacity of 50 MW, with the potential to scale up to 128 MW. The company expects the Kouvola data center to go into operation by late 2026, with Lahti following, likely in 2027.
The appeal of Finland is no coincidence. TikTok highlights in its statement that the country offers a particularly favorable combination of digital infrastructure, reliable clean energy, and a skilled workforce. Reuters additionally notes other factors making Finland an increasingly attractive destination for data centers: cold climate, low-carbon electricity, and a stable regulatory environment.
DayOne on Lahti’s radar
While TikTok has not officially identified the industrial partner for the Lahti data center, market context points in a clear direction. In August 2025, DayOne announced a data center campus in Lahti with a total investment of €1.2 billion and a potential capacity of 128 MW. The company now markets its Lahti and Kouvola campuses as two major sites in Finland, with a combined capacity of 281 MW and commissioning dates starting in 2026.
Furthermore, Reuters and various industry outlets recall that DayOne had already revealed in 2025 its involvement in the Kouvola project serving TikTok. While this does not constitute official confirmation that DayOne will also be the partner for the new Lahti center, it positions the company as one of the most probable names in the ecosystem surrounding Project Clover in Finland.
Project Clover continues to grow as TikTok seeks to fortify its position in Europe
The expansion in Finland cannot be understood without considering Project Clover. TikTok has operated a data center in Dublin since 2023 and has been expanding its European infrastructure with facilities in Norway. In April 2025, the company confirmed that its three data center buildings in Hamar, developed by Green Mountain, were already online. The company has consistently stated that this network of European centers is part of its effort to keep European user data within the region and enhance oversight over who can access it.
The investment in Finland also comes at a sensitive time for TikTok’s regulatory and trust issues. Reuters notes that the platform remains under pressure in Europe regarding data protection and child safety, while its link with ByteDance continues to be a sensitive topic in several markets. In this context, more European infrastructure does not solve the political issues alone but allows TikTok to strengthen a key argument: that it is attempting to localize data processing and subject it to more regional controls.
What matters most, in any case, is that TikTok is no longer making mere image gestures. Two €1 billion investments in Finland within less than a year make the country a core component of its European strategy. This speaks volumes about the current state of the sector: in the battle for digital trust, data centers are no longer just infrastructure—they are also a political, regulatory, and commercial statement.
Frequently Asked Questions
Where will TikTok’s second data center in Finland be located?
It will be in Lahti, in the Kiveriö district. TikTok confirmed the investment on April 7, 2026, as part of its European infrastructure expansion.
How much will TikTok invest in the new Lahti data center?
The company announced a €1 billion investment for this second Finnish project—matching the amount allocated to the Kouvola data center in 2025.
What is Project Clover and why is it important?
It is TikTok’s digital sovereignty initiative in Europe. According to the company, it mobilizes €12 billion and aims to protect data of over 200 million European users through regional infrastructure and enhanced safeguards.
Is it confirmed that DayOne will build the new Lahti data center?
Not officially by TikTok. However, DayOne announced a major campus in Lahti in 2025 and has also been linked to the Kouvola project, making it a very likely candidate in this new phase.