REDONDO BEACH, Calif., Feb. 8, 2013 -- Northrop Grumman (NYSE:NOC) today announced it has appointed Mary Petryszyn vice president, international, for the company's Aerospace Systems sector.

Petryszyn will work to build the Aerospace Systems sector's international business and will be responsible for the development, expansion and growth of its business, programs and products worldwide.

Petryszyn joins Northrop Grumman from Raytheon Company and has extensive defense industry experience. She has led crucial business areas including programs in chemical, biological and radiation detection, maritime surveillance and decision-support systems.

Petryszyn also worked closely with business and government leaders in numerous international markets. She held positions in engineering, program management, business development and strategy.

"We see significant growth opportunities in the international market," said Tom Vice, corporate vice president and president of Northrop Grumman Aerospace Systems. "Mary's diverse and rich background makes her uniquely qualified to lead our new organization focused on capturing these opportunities."

Petryszyn earned a bachelor's degree in electrical and computer engineering from Clarkson University and a master's degree in computer engineering from Syracuse University. She also has completed advanced management programs, including the Executive Business Leadership Program at the University of Chicago and the Executive Marketing Program at Indiana University.

Northrop Grumman is a leading global security company providing innovative systems, products and solutions in unmanned systems, cybersecurity, C4ISR, and logistics and modernization to government and commercial customers worldwide. Please visit for more information.

  CONTACT: Tom Henson