Simon Property Group, Inc. is an equity real estate investment trust. The firm invests in the real estate markets across the globe. It engages in investment, ownership, and management of properties. It primarily invests in regional malls, Premium Outlets, The Mills, and community/lifestyle centers to create its portfolio. Simon Property Group, Inc. was founded in 1960 and is based in Indianapolis, Indiana, with additional offices in Delaware, United States; and New York, New York.