Alliant Credit Union

Alliant Credit Union is an American credit union headquartered in Chicago, Illinois. Founded in 1935, it ranks among the largest credit unions in the United States, serving over 600,000 members across the nation. Alliant operates solely as an online credit union, and has no physical branches.

Initially established as the United Airlines Employees' Credit Union (UAECU) by United Airlines employees in 1935, the institution later adopted the name "Alliant Credit Union" in 2003. Over the years, it broadened its membership scope, extending its services to multiple sponsor organizations and communities around O'Hare International Airport.

Alliant is a state-chartered credit union regulated by the Illinois Department of Financial and Professional Regulation (IDFPR), the Consumer Financial Protection Bureau (CFPB), and the National Credit Union Administration (NCUA).