DayOne Secures Up to €1B From Brookfield and Partners to Expand AI and Cloud Data Centers

DayOne Data Centers, a Singapore-headquartered data center developer and operator, today announced that it has secured a mezzanine financing facility of €500 million, expandable up to €1 billion upon mutual agreement, 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 US$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 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.