DayOne Data Centers, a Singapore-headquartered data center developer and operator, announced that it has secured a mezzanine financing facility of €500 million ($582.62 million), expandable up to €1 billion ($1.17 billion) upon mutual agreement, to accelerate its Finland platform and global expansion.
The firm said in a statement on last Thursday that the funding came from global investment firm Brookfield and a global sovereign investor, both long-term investors with significant expertise in infrastructure.
The borrowing will be secured by DayOne’s Finland platform, with proceeds of the facility used to support the rollout of its hyperscale developments in Lahti and Kouvola.
The structure also provides the flexibility to allocate proceeds to other key growth markets as required, enabling DayOne to capture rising AI and cloud infrastructure demand.
This capital solution underscores investor confidence in DayOne’s platform quality, governance, and long-term growth trajectory.
The facility operates under a seven-year tenor and provides strategic flexibility to support organic expansion, and new-build programs.
The financing adds to DayOne’s $1.9 billion raised across its Series A and Series B equity rounds, and further supports its expanding presence in Europe and Asia-Pacific.
In August 2025, DayOne announced a €1.2 billion ($1.4 billion) investment commitment in Lahti.
Together with a joint-venture hyperscale development in Kouvola, the company is advancing nearly 300 MW of planned capacity across Finland.
“The Brookfield facility strengthens DayOne’s long-term capital base and supports the continued build-out of our global platform,
It aligns with the scale and pace of digital infrastructure our customers require and reflects the confidence our investors, including Brookfield, have in our strategy and execution,” said Jamie Khoo, Chief Executive Officer of DayOne.
“With Finland as the initial borrower, it marks another important step in advancing our development across multiple markets,” he added.
Sean Robertson, Infrastructure Debt Senior Vice President, Brookfield, said Brookfield is uniquely positioned to provide flexible, large-scale financing solutions for high-quality operators like DayOne that are enabling the global shift toward artificial intelligence (AI) and cloud-driven data demand given their experience in digital infrastructure.
“We’re delighted to support DayOne’s expansion with this milestone transaction,” he added.
According to the statement, DayOne continues to build a global platform of hyperscale data centers, with a development pipeline spanning Singapore, Malaysia, Indonesia, Thailand, Japan, Hong Kong and Finland.
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