TIAA, formerly known as TIAA-CREF, is a leading financial services organization that specializes in providing retirement services to individuals in the academic, research, medical, cultural, and governmental sectors. Established in 1918 by Andrew Carnegie and the Carnegie Foundation for the Advancement of Teaching, TIAA has grown to serve over 5 million active and retired employees across more than 15,000 institutions. As of 2017, the organization managed assets totaling $1 trillion, with holdings in over 50 countries.

TIAA's offerings include retirement plans, annuities, IRAs, mutual funds, and wealth management services. The company is headquartered in New York City, with major offices in Denver, Colorado; Charlotte, North Carolina; and Dallas, Texas. TIAA is also known for its subsidiary, Nuveen, an American asset manager that manages a diverse portfolio of investments.