Marillyn Hewson
MPW defense marillyn hewson NEW
Title: EVP, Electronic Systems
Company: Lockheed Martin

Hewson takes over as operations chief for the defense contractor on January 1, but since 2010 she has run Electronic Systems, the company's biggest division. Together, its two missile defense programs -- Patriot Advanced Capability-3 and Terminal High Altitude Area Defense (THAAD) -- can intercept incoming missiles and reach targets beyond the Earth's atmosphere. Lockheed recently had its first international sale of THAAD to the United Arab Emirates.

  @FortuneMagazine - Last updated September 20 2012 10:04 AM ET
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