EVP, Electronic Systems
Lockheed Martin
2011 rank: 27
Age: 58
The retirement of Lockheed's CEO at the end of 2012 will set off a chain of promotions, landing Hewson in the No. 2 spot as president and COO of the U.S. government's biggest contractor. Last year she oversaw a 2% increase in revenue and operating profits in the company's largest division.
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