Herley Industries, Inc. is a supplier of microwave products and systems to defense and aerospace entities worldwide. The Company designs and manufactures microwave components and subassemblies, which are embedded in a variety of radars, flight instrumentation, weapons sensors, electronic warfare systems and guidance systems. Its microwave devices are used on its subassemblies and integrated systems (command and control systems, telemetry systems, transponders, flight termination receivers and identification friend or foe, or IFF, interrogators), in addition to being sold on a component basis. Its primary customers include large defense prime contractors (including Northrop Grumman Corporation, Lockheed Martin Corporation, Raytheon Company, The Boeing Company, BAE Systems and Harris Corporation), the United States Government (including the Department of Defense, National Aeronautics and Space Administration (NASA) and other United States Government agencies).