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9. PricewaterhouseCoopers International
PricewaterhouseCoopers International
2007 revenue: $25.2 billion
Fiscal year end: June 30
2007 Employees: 147,000
Industry: Financial services
CEO: Samuel A. DiPiazza Jr.
Location: New York, N.Y.

The Big Four accounting firm audits nearly a third of the Fortune Global 500 and provides services in more than 150 countries across its network.

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Last updated May 28 2008: 12:40 PM ET