In recent years the Oracle has aggressively used acquisitions to expand its product lines, including the purchases of PeopleSoft, Siebel Systems, BEA Systems, and Hyperion Solutions. In April 2009 the company announced plans for its most ambitious acquisition to date, the purchase of Sun for about $7.4 billion.
2004 DEC - PeopleSoft - $10.3 billion
PeopleSoft, Inc. was a company that provided human resource management systems (HRMS), customer relationship management (CRM), manufacturing, financials, enterprise performance management, and student administration software solutions to large corporations, governments, and organizations. PeopleSoft was also the name of the company's product suite.
2005 SEP - Siebel Systems - $5.85 billion
Siebel Systems, Inc. was a software company principally engaged in the design, development, marketing, and support of customer relationship management (CRM) applications.
2007 MAR - Hyperion Solutions - $3.3 billion
Hyperion Solutions Corporation was a business performance management software company. Many of its products were targeted at the Business Intelligence and Business performance management market.
2008 JAN - BEA Systems - $8.5 billion
2009 APR - Sun Microsystems - $7.4 billion