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Hannon Armstrong
Jeff Eckel leads Hannon Armstrong, a public REIT that exclusively finances climate-infrastructure assets, from its Annapolis headquarters.
Hannon Armstrong
Founded in 1981 and led by CEO Jeff Eckel since the mid-1990s, Hannon Armstrong transitioned from real estate finance into a dedicated climate-infrastructure investment platform. The firm operates as a real estate investment trust, providing debt and equity capital exclusively for projects that reduce emissions or enhance climate resilience. Its conversion to a public company in 2013 on the New York Stock Exchange marked a deliberate structural choice, embedding environmental purpose into its corporate charter. This framework legally tethers the firm’s mandate to assets that support the transition to a low-carbon economy. Hannon Armstrong deploys capital across three pillars: behind-the-meter energy efficiency for government and commercial buildings, grid-connected renewable energy generation, and sustainable infrastructure including green stormwater management and ecological restoration. The firm structures its investments through a combination of balance-sheet debt positions, direct equity stakes in operating projects, and syndications to institutional partners. Geographic coverage spans the United States, with significant exposure to federal, state, and local government energy-savings performance contracts. The portfolio historically includes solar, wind, and energy storage assets, as well as long-duration contracts with investment-grade obligors. The firm maintains its headquarters in Annapolis, Maryland, and reports its financial position as a publicly traded entity subject to SEC disclosure requirements. Its portfolio composition is reported quarterly, distinguishing between on-balance-sheet assets and those managed through securitization vehicles or joint ventures. Public filings routinely show a mix of fixed-rate government receivables, power-purchase agreements with utilities, and commercial property-assessed clean energy loans. Philanthropic or adjacent family-office structures are not disclosed; the firm operates as a standalone public investment manager. Hannon Armstrong occupies a legally distinct structural position: it is a public REIT whose stated purpose is to deliver attractive risk-adjusted returns solely through climate solutions. This commitment is not a policy preference but an enforceable component of the firm’s charter. No other US-listed REIT has a similarly codified climate-only mandate, which constrains its deployment universe while simultaneously creating a clear, differentiated sourcing identity for investors and project developers.
General information
Firm type
Asset Manager
Year founded
1981
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Annapolis
Corporate office
Annapolis, MD, United States
Principals
Jeffrey W. Eckel
Chairman, President & CEO
Sector focus
Frequently asked questions
Is Hannon Armstrong a family office?
No. Hannon Armstrong is a publicly traded real estate investment trust and asset manager, not a private family office. The firm has been listed on the New York Stock Exchange under ticker HASI since 2013.
What makes Hannon Armstrong’s charter unusual?
The firm’s public charter mandates that it invest exclusively in assets that contribute to a climate-positive outcome—either by reducing greenhouse gas emissions or improving climate resilience. This legally binds Hannon Armstrong to a narrower investment universe than conventional REITs or infrastructure managers, which is unique among US-listed entities.
How does Hannon Armstrong source its investment opportunities?
Hannon Armstrong originates transactions directly through relationships with federal, municipal, and commercial counterparties, as well as through select developer partnerships. The firm targets long-term contracted cash flows from investment-grade or government obligors across energy efficiency, renewable energy, and sustainable infrastructure projects.
What is the firm’s approach to co-investment?
Hannon Armstrong syndicates portions of its originated assets to institutional co-investors, including pension funds and insurance companies, while retaining a meaningful balance-sheet stake. This approach allows the firm to manage portfolio concentration risk and recycle capital more efficiently than a pure buy-and-hold lender.
Who runs investment decisions at Hannon Armstrong?
Jeffrey W. Eckel has led the firm as Chairman, President, and CEO since the mid-1990s and drove its pivot toward climate-infrastructure finance. Major investment and portfolio decisions are executed by the senior leadership team under his direction, with oversight from an independent board of directors given the firm’s public-company status.
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