With approximately 50,000 employees, Leidos is a Fortune 500 technology company known for carrying out complex missions for government and commercial customers. Its work spans digital innovation and advanced defense manufacturing, including the development of mission-ready systems for national security, health, and critical infrastructure.
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Leonardo DRSFor more than five decades, Leonardo DRS has built a defense-technology business serving the U.S. military and allied forces. Founded in 1969, the company now employs nearly 7,000 people and is known for supporting mission readiness with systems developed for demanding military operations.334511JOHNSTOWN, PA
Day & ZimmermannFamily-owned since its Philadelphia founding in 1901, Day & Zimmermann grew from Charles Day’s early industrial betterment work into a company serving complex corporate and government needs. Today, its 32,000-plus employees work across more than 900 locations, with the company particularly known for defense manufacturing and large-scale technical projects. Its guiding promise remains simple: “We do what we say.”561210PHILADELPHIA, PA
ArcfieldArcfield is a Chantilly-based defense technology company that develops systems and digital engineering solutions for national security missions, spanning the ocean floor to space. Though the name is new, the company brings more than 68 years of mission support to government agencies across the United States and Canada, with more than 2,200 employees and 18 global locations. Its 82% security-cleared workforce supports space superiority, hypersonic defense, undersea warfare and digital transformation, including through its Orion Space Solutions and Strategic Technology Consulting brands.BROOKPARK, OH
CACI International IncFor more than six decades, CACI International Inc. has grown into a national-security company with more than 27,000 employees worldwide, including a workforce that is 39% veteran. It serves defense and intelligence agencies by applying software, engineering, and mission expertise to complex government missions. CACI is also known for completing more than one million background investigations for federal customers.FAIRBORN, OH