Sigma Defense Systems LLC, 1812 Macon Rd, Perry, GA 31069, US

Northrop Grumman Corporation is a worldwide defense company. The company provides a range of products, services and solutions for the systems integration, defense electronics, information technology, advanced aircraft, shipbuilding and space technology markets. Its shipbuilding segment designs, builds and refuels nuclear-powered aircraft carriers and submarines. Northrop Grumman Corporation also performs services for a variety of naval and commercial vessels. The company operates in more than 25 countries throughout the world. It employs a staff of over 120,000 employees in nearly 10 business divisions. Northrop Grumman Corporation serves the international military, government and commercial industries. The company s subsidiaries include Northrop Grumman LITEF and General Dynamics Corporation. It offers inertial sensors and navigation systems for military and civil space satellites. Northrop Grumman Corporation provides life cycle support programs the U.S. Navy and the U.S. Coast Guard.