Mary D. Petryszyn

Corporate Vice President and President, Northrop Grumman Defense Systems at Northrop Grumman

Mary D. Petryszyn is corporate vice president and president, Northrop Grumman Defense Systems sector, a leading global provider of defense solutions addressing evolving threats and quick-turn requirements. In this role, Petryszyn oversees delivery of a broad-spectrum of critical technology services, sustainment and modernization, integrated battle command systems, tactical weapons and information systems to a wide variety of national security, military and civilian customers. Previously, she served as sector vice president and general manager of the Land and Avionics C4ISR division for Northrop Grumman Mission Systems sector, and as vice president of Global Strategy and Mission Solutions at the heritage Northrop Grumman Aerospace Systems sector. Petryszyn has extensive global experience in business and operational leadership in government and defense markets. Prior to joining Northrop Grumman in 2013, Petryszyn held leadership roles at Singer-Link and Hughes Aircraft Company, and in program management, strategy and business development, and mergers and acquisitions at Raytheon. 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 completed advanced management programs, including the Executive Business Leadership Program at the University of Chicago and Indiana University’s Executive Marketing Program. Currently she serves on the Corporate Partnership Council for the Society of Women Engineers (SWE) and on the Board of Governors of the United Service Organizations (USO). Petryszyn is a fellow life member of SWE and is a senior member of the Institute of Electrical and Electronics Engineers (IEEE). Northrop Grumman solves the toughest problems in space, aeronautics, defense and cyberspace to meet the ever evolving needs of our customers worldwide. Our 85,000 employees define possible every day using science, technology and engineering to create and deliver advanced systems, products and services.


  • Corporate Vice President and President, Northrop Grumman Defense Systems

    Current role

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