Department of Homeland Security NAICS 541990 and PSC AC65 contractors in Virginia

All Other Professional, Scientific, and Technical Services. R&D- DEFENSE SYSTEM: ELECTRONICS/COMMUNICATION EQUIPMENT (OPERATIONAL SYSTEMS DEVELOPMENT). Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.

Virginia · Department of Homeland Security

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$91,941,114

Cross-code depth

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Top recipients

Visible recipients tied to Department of Homeland Security, Virginia, NAICS 541990, and PSC AC65

Mantech Systems Engineering Corporation

Fairfax, VA

Mantech Systems Engineering Corporation is a federal category business profile based in Fairfax, VA. The current public data layer shows $1,150,010,370 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 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$91,941,114