FALLS CHURCH, Va., Oct. 20, 2011 -- Northrop Grumman Corporation (NYSE:NOC) was ranked 51 st among the 500 largest public companies in the U.S. by the Newsweek 2011 Green Rankings published this week, rising 122 places from its 2010 ranking. Newsweek's rankings are derived from evaluation of company performance over three components: Environmental Impact, Environmental Management and Environmental Disclosure.

"This improvement in the Newsweek Green Ranking demonstrates Northrop Grumman's commitment to making significant reductions to our impact on the environment," said Gloria Flach, corporate vice president and president Enterprise Shared Services sector. "We are aligning the management of our operations with environmental sustainability as a core element of our company's culture, an important measure of our performance for our employees, customers and shareholders."

Northrop Grumman has intensified its environmental sustainability goals in recent years to include a five-year program to reduce its greenhouse gas emissions as well as conservation goals for water usage and minimization of solid-waste generation. For more detail on company's commitment to the environment, click here .

The Newsweek Green Rankings assess the environmental performance of the largest publicly traded companies in America and around the world. Published annually since 2009, it ranks companies based on their environmental footprint, the company management of that footprint (policies, programs, initiatives), and sustainability communications.

Northrop Grumman is a leading global security company providing innovative systems, products and solutions in aerospace, electronics, information systems and technical services to government and commercial customers worldwide. Please visit www.northropgrumman.com for more information.

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