High Quality Content by WIKIPEDIA articles! The MasterCard International Global Headquarters is an office building located at 2000 Purchase Street in the town of Harrison, New York that was constructed in the early 1980s as part of a movement of large corporations to suburban estate settings and has been called the "architectural jewel of Westchester". The building is part of the Purchase Centre complex and originally was constructed by the Nestle company and occupied by IBM for several years. It was designed by I. M. Pei of Pei Cobb Freed & Partners and has won awards over the years for its architectural style.