HASI (HA Sustainable Infrastructure Capital, Inc.) is a climate-positive investment firm that finances sustainable infrastructure assets supporting the energy transition. Founded in 1981, it draws on four decades of clean energy finance experience and is publicly listed on the New York Stock Exchange under the ticker "HASI". The firm is headquartered in Annapolis, Maryland and operates across the United States.
The firm's work spans sustainable infrastructure finance, clean energy finance, energy markets and financial structuring, with exposure to solar energy, energy storage, onshore wind, renewable natural gas, energy efficiency and carbon emissions reduction. Its investment activity is organised into three market segments: Behind-the-Meter, which finances distributed solar and storage assets; Grid-Connected, covering utility-scale solar, storage and onshore wind projects; and Fuels, Transport & Nature, which extends to renewable natural gas (RNG) and nature-based solutions.
HASI reports more than $16 billion in managed assets and more than 1,300 closed investments, with roughly 10 million metric tons of CO2e emissions avoided annually. The firm describes a programmatic client partnership approach and a focus on deep expertise in energy markets and financial structuring, pursuing risk-adjusted returns alongside measurable environmental benefit.
