This collection primarily contains materials related to Percy and Harold Uris and their real estate businesses. Correspondence, financial records, and estate papers document the professional and personal lives of the brothers and their wives. The bulk of the business records are from their properties at 380 Madison Avenue and 300 Park Avenue. There is limited information about the other Uris properties and Uris Building Corporation. Finally, the collection contains records from the Uris Brothers Foundation, Inc about the family's philanthropic endeavors.