Prime Highlights

• DayOne Data Centers has raised €500 million ($582.62 million) in mezzanine financing, backed by Brookfield and a global sovereign investor, to accelerate its Finland platform and global expansion.
• The funding supports large-scale projects in Lahti and Kouvola, enabling the company to meet rising demand for AI and cloud data infrastructure.

Key Facts

• The mezzanine facility has a seven-year tenor and can increase to €1 billion ($1.17 billion) if both parties agree, strengthening DayOne’s long-term capital base.
• DayOne has already committed €1.2 billion ($1.4 billion) to the Lahti project, advancing nearly 300 MW of planned capacity in Finland.

Background

DayOne Data Centers, a Singapore-based data center developer, has secured €500 million ($582.62 million) in mezzanine financing, which can increase to €1 billion ($1.17 billion) if both sides agree. The company said it will use the funding to grow its Finland platform quickly and support its global expansion.

The financing comes from Brookfield and a global sovereign investor, both known for their long-term focus on infrastructure. DayOne’s Finland platform backs the borrowing, and the company will use the money for its large-scale projects in Lahti and Kouvola. The flexible structure also lets DayOne move funds to other growing markets, helping it meet the rising demand for AI and cloud data infrastructure.

The mezzanine facility carries a seven-year tenor and provides the company with strong capital support for organic expansion and new-build programs. This latest funding increases DayOne’s total raised capital to $1.9 billion from earlier equity rounds and strengthens its presence across Europe and the Asia-Pacific region.

DayOne has already committed €1.2 billion ($1.4 billion) to its Lahti project announced in August 2025. Together with its joint-venture site in Kouvola, the firm is advancing close to 300 MW of planned capacity in Finland.

CEO Jamie Khoo said the Brookfield-backed facility strengthens the firm’s long-term capital base and supports the scale of digital infrastructure required by customers. He added that using Finland as the initial borrower marks an important step in expanding across multiple global markets.

Brookfield’s Senior Vice President for Infrastructure Debt, Sean Robertson, said the firm is well-positioned to support operators like DayOne that enable the worldwide transition toward AI and cloud computing.

DayOne’s global development pipeline includes Singapore, Malaysia, Indonesia, Thailand, Japan, Hong Kong, and Finland, as it builds a large network of hyperscale data centers.

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