Data center provider Stack Infrastructure has closed a $1.4 billion green financing facility.

The green financing facility is backed by 10 of Stack's "stabilized, revenue-generating data centers" located across North America. The company has not shared which data centers are included.

According to the company, the facility has drawn "strong interest from banks and institutional capital providers." The investors involved have not been shared.

The additional liquidity will be used by Stack to expand its data center platform.

“This financing demonstrates Stack's differentiated market position and our ability to attract scale capital across the development cycle,” said Heather Paduck, CFO, Stack Americas. “It enhances our ability to move with agility in the current environment, while reinforcing our long-term alignment with hyperscale clients and institutional partners.”

Since the company's inception, Stack has raised $21 billion in capital. This year alone has seen several funding rounds from the company.

In January, Stack secured $900 million in green financing for a 200MW data center campus in Virginia. March then saw the company securing $4bn in green financing for data center projects in North America and Canada. Earlier this month, Stack was said to be seeking an AU$1.3 billion (US$833 million) loan to support its buildout in Australia.

IPI launched Stack in 2019 after merging several T5 data centers with three Infomart facilities acquired the previous year into a new operator. Stack now has some 4GW in operation or development globally, with another 6GW planned in the future. Stack’s owner, IPI, was acquired by Blue Owl in October 2024.

Last month, Stack sold its European business to investment fund Apollo, handing over seven data centers in five markets - Stockholm, Oslo, Copenhagen, Milan, and Geneva.