Ernst & Young vs Oracle

Ernst & Young Global Limited is a multinational professional services firm headquartered in London, United Kingdom. It is one of the "Big Four" audit firms and is the third largest professional services firm in the world by aggregated revenue in 2014, after Deloitte and PwC. The organization operates as a network of member firms which are separate legal entities in individual countries. It has 190,000 employees in over 700 offices around 150 countries in the world. It provides assurance, tax, consulting and advisory services to companies.

The Oracle Corporation is an American global computer technology corporation, headquartered in Redwood City, California, United States. The company primarily specializes in developing and marketing computer hardware systems and enterprise software products particularly its own brands of database management systems. In 2011 Oracle was the second-largest software maker by revenue, after Microsoft. The company also develops and builds tools for database development and systems of middle-tier software, enterprise resource planning software, customer relationship management software and supply chain management software.