Alterra IOS, a player in the industrial outdoor storage (IOS) sector that has acquired more than 495 sites nationwide, closed a $400 million refinancing led by Truist Financial and KeyBank, supporting the continued expansion of its growing industrial outdoor storage platform.
Secured by a portfolio of 99 IOS properties spanning 27 states, the financing was executed utilizing an equity pledge framework in place of traditional asset-level mortgages. The structure enables streamlined execution and portfolio-level underwriting. Of the total financing, Truist provided $225 million as administrative agent, joint lead arranger and active bookrunner, and KeyBank committed $175 million as syndication agent, joint lead arranger and active bookrunner.
“This transaction reflects a shift toward more scalable, platform-based financing solutions in real estate,” Scott Whittle, chief financial officer at Alterra IOS, said. “For portfolios like IOS, which consist of a high volume of assets, traditional mortgage structures can be time- and cost-intensive. An equity pledge structure allows us to operate more efficiently by reducing legal and administrative burden, accelerating execution and preserving flexibility as we continue to grow the platform.”
Kate Mooney, senior associate, capital markets at Alterra, added, “Structures like this are becoming more relevant as institutional capital seeks efficient ways to access fragmented sectors at scale. As IOS portfolios have grown and matured, lenders have developed greater comfort underwriting diversified portfolios rather than individual assets. Equity pledge facilities reflect that evolution and provide both borrowers and lenders with a more practical and efficient financing solution.”
Collectively, the portfolio of 99 IOS properties totals 551 usable acres and nearly 2.1 million square feet of accompanying warehouse space.
“Industrial outdoor storage has emerged as one of the most compelling segments within industrial real estate,” Nadia Mahmoud, managing director, real estate corporate banking at Truist, said. “As the landscape continues to evolve, we’re seeing increasing demand for financing solutions that can match the scale and complexity of this asset class. We’re proud to deliver the flexibility and expertise that clients need to capitalize on this growing market.”
Joshua Mayers, senior vice president at KeyBank, added, “IOS continues to benefit from durable demand fundamentals and a constrained supply environment, particularly in core logistics corridors. Alterra’s operational track record, and this portfolio’s quality, allowed Truist and KeyBank to provide a flexible and creative credit facility structure to support the company’s continued growth.”
