Defense Counterintelligence and Security Agency (DCSA) Employee Directory
Security and InvestigationsVirginia, United States1001-5000 Employees
The Defense Counterintelligence and Security Agency (DCSA) is a U.S. federal agency in the security and investigations field. It conducts security oversight and education missions on behalf of the Department of Defense and other U.S. government departments and agencies to support national security and the warfighter. Based in Quantico, Virginia, the agency is part of a federal workforce that numbers in the thousands and focuses on safeguarding classified information and personnel security programs. Within the National Industrial Security Program, DCSA oversees the security requirements tied to classified contract work performed by private industry. A Government Accountability Office report issued in 2026 identified persistent structural gaps in how DCSA manages risk across this program. In May 2026, DCSA launched the Billing Support Portal, a secure interface to help its working capital fund customers review funding and billing details.
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