Ha Sustainable Infrastructure Capital, Inc.
A specialized investment firm and real estate investment trust (REIT) that provides capital for climate-friendly energy infrastructure — utility-scale solar, wind power, battery storage, and efficiency upgrades — for utilities, companies, and governments. It began in 1981 in Virginia as Eden Hannon Goodwin & Company, took the name Hannon Armstrong in 1989 from its founders' surnames, and became HA Sustainable Infrastructure Capital in 2024. Its brand name, HASI, is simply the stock ticker that employees, clients, and investors had already been calling the firm for years.