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7. Bechtel
2007 revenue: $27 billion
Fiscal year end: Dec. 31
2007 Employees: 159,700
Industry: Engineering, construction
CEO: Riley P. Bechtel
Location: San Francisco, Calif.

One of the nation's biggest contractors, Bechtel builds airports, mines, pipelines and refineries among other major-scale projects.


Last updated May 28 2008: 12:40 PM ET