FALLS CHURCH, Va., April 24, 2012 -- Northrop Grumman Corporation (NYSE:NOC) today announced it was ranked 30 th out of 360 participant companies in the Maplecroft Climate Innovation Indexes (CII), designating it as a "Leader" among the best performing companies in Maplecroft's report covering the year 2011.

Inclusion in this index demonstrates superior management, mitigation and adaptation in the field of climate innovation. Maplecroft rates and reviews more than 360 U.S.-listed companies that have free-float market capitalization of over $1 billion. Northrop Grumman has raised its index score significantly over 2010, when the company index ranking was 150.

"This recognition reflects Northrop Grumman's high performance at the nexus of environmental stewardship, risk management and innovation," said Steve Movius, vice president of Investor Relations. "We are proud to be recognized for our efforts and are committed to maintaining our focus on environmental and business sustainability."

Maplecroft evaluated each company against more than 100 criteria, including: technological innovation and new working practices to combat climate change impacts; management of climate-related issues; adaption to physical climate-related risks, such as flooding or more extreme weather events throughout the supply chain; and, the reduction of GHG emissions.Â

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.

  CONTACT: Margaret Mitchell-Jones
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