Department of Homeland Security PSC D399 contractors

IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Use this buyer-scoped PSC page to see which visible contractors sit closest to this product or service lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$61,833,188,619

Visible recipients tied to Department of Homeland Security and PSC D399

Mantech Mgs, Inc.

Herndon, VA

Mantech Mgs, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows -$2,078,725 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541219 (Other Accounting Services). The profile also shows meaningful product and service activity in PSC R408.

$68,883,107

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