Singapore-based DayOne Data Centers has announced the final closing of its Series C equity financing, drawing in total gross proceeds of $4.5bn.
DayOne’s existing investors Coatue and Hillhouse led the funding round and are now its two largest shareholders. Additional investors joined the Series C tranche, including the Indonesia Investment Authority and Achi Capital Partners.
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The funding round, which DayOne stated is among the largest private capital raises for a data centre operator, is expected to support the company’s growth strategy across Asia Pacific and Europe. Since launching in 2022, DayOne has secured over 1.5GW of total capacity bookings in these regions.
The company intends to use the raised capital to accelerate its presence in markets such as Singapore, Malaysia, Indonesia, Thailand, Japan, Hong Kong SAR, Finland and Spain.
According to DayOne, the Series C equity financing attracted a wide range of global investors from the US, Europe, and Asia-Pacific.
The company described this diversification of its shareholder base as being in line with its international expansion strategy.
This latest financing comes after DayOne raised an aggregate $1.9bn across its Series A and Series B equity rounds in 2024.
The company also previously secured up to €1bn($1.15bn) in mezzanine debt in 2025, provided by Brookfield and a sovereign investor.
The Series C round was reportedly priced at a 100% premium to the prior round, though specific valuation details were not disclosed.
Looking ahead, DayOne indicated that it might explore additional equity and debt financing, depending on its capital requirements and market conditions.
DayOne develops and operates data centre campuses for hyperscale clients and enterprises, focusing on what it describes as high-capacity, AI-ready facilities in key international markets.
