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America's Gatekeeper

DCSA is the largest security agency in the federal government dedicated to protecting America's trusted workforce and trusted workspaces.

Each year, DCSA services over

100+ federal entities
10,000+ cleared companies
2M+ background investigations

Learn More About Our Mission

Agency News

View DCSA joins delegation to Australia and strengthens ties with counterparts

In June 2024, DCSA representatives from Industrial Security (IS) and Counterintelligence (CI) traveled to Canberra, Australia, to meet face-to-face with their counterparts.

The Fourth of July, marked by parades and patriotic gatherings, is the anniversary of the Declaration of Independence. However, it’s also the anniversary of another event with major global impact. On July 41918, U.S. and Australian troops fought side by side for the first time at the Battle of Hamel...

Sept. 16, 2024

View Make a difference; be a part of the 2025 DCSA Student Experience

Director's Round Table with DCSA Student Experience Interns at the Russell Knox Building, Quantico Va. (DOD photo by Gracyn Redding)

The 10-week Defense Counterintelligence and Security Agency (DCSA) Student Experience (DSE) is available to undergraduate or graduate students from an accredited college or university. This year, interns reached 13 different mission areas, including the core mission directorates of...

Sept. 13, 2024

View Central Region Leadership Summit: Integration and 'leading from the Heartland'

DCSA Director David Cattler covers a wide-range of agency topics and emphasizes the importance of mission integration coupled with the sharing of information while he speaks to participants at the Central Region Leadership Summit, Aug. 27, in St. Louis. (DOD photo by John Joyce)

ST. LOUIS – “What you, what we, and what our teams do is absolutely vital to the success of the agency and our nation.”DCSA Central Region Director Roy Hawkins inspired more than 80 participants with the reality regarding the solemn nature of their national security mission as the three-day Central...