Developers Diversified Realty Corporation is one of the largest retail real estate owners and managers in the world. Based in Ohio, it is a self-administered and self-managed real estate investment trust (REIT) in the business of owning, managing as well as developing a portfolio of shopping centers and business centers. The company employs 722 full-time individuals, including executive, administrative and field personnel. It is one of the largest landlords in Puerto Rico. The company s portfolio consists of 615 shopping centers as well as six business centers, including 274 centers owned through unconsolidated joint ventures, 34 centers that the company consolidates and almost 2,000 acres of undeveloped land.