Oracle was founded in 1977 by Larry Ellison, Bob Milner, and Ed Oates. It develops and builds enterprise software and databases, including Oracle Database, Fusion Middleware, and applications for ERP, SCM, and CRM. Oracle has acquired companies like Sun Microsystems, Siebel Systems, and PeopleSoft to expand its offerings. Major competitors include SAP, Microsoft, Workday, Amazon, and Salesforce.com.