Len O’Donnell

For Affinius Capital and its $61 billion of assets, the story in 2025 was pretty straightforward: Continue securing a steady stream of fundraising and lean into construction investment across industrial, multifamily and data centers.

Last year, Affinius expanded its credit business through a new tactical lending program for construction lending called Affinius Tactical Partners IV. Led by debt specialists Michael Lavipour and Jeff Fastov, the fund secured in excess of $720 million as of February 2026, with intentions to secure more than $1.5 billion in new opportunistic investment capital.

Then there’s the firm’s enormous (and prescient) data center financing pipeline, which reached $15 billion in 2025. Most of Affinius’ data center projects are leased or pre-leased to the largest U.S. hyperscalers such as Microsoft, while the firm’s latest data center fund, launched in late 2025, has already closed $630 million in capital and holds a $1 billion fundraising target.

“It was our best fundraising year since 2019 — but it was more concentrated than past years, 75 percent was concentrated in various credit strategies or data centers,” said Len O’Donnell.

Affinius has long been invested in the data center space, going back more than a decade to when its deals were mainly for co-location campuses driven by cloud computing rather than generative AI. Back then, the deals were smaller with shorter leases, but Affinius had the foresight to partner with Patrinely Group to create Corscale Data Centers, a vertically integrated data center development firm that specialises in execution, site acquisition, asset management and capital markets.

Through Corscale, Affinius has been perfectly positioned to take advantage of the favorable absorption and demand metrics. 

“Come 2022, 2023, we started talking about the emergence of AI, the demand started to accelerate, to the levels we see today and beyond,” said O’Donnell. “I think we did have a really good vision of how to execute in the data center space, and we have really good visibility between now and 2030, where we think demand will continue to grow during that period.”