BAE Systems, Inc. | 438,374 followers on LinkedIn. Improving the future and protecting lives is an ambitious mission, but it’s what we do. BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, security and aerospace company headquartered in Arlington, VA, with locations across the country. BAE Systems employees’ dedication and commitment show in everything they create and deliver, including advanced electronic systems, cyber operations and intelligence analysis, combat vehicles, naval weapons, ship maintenance and modernization, and vehicle upgrades and services.