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Department of Homeland Security NAICS 541330 and PSC DA01 contractors

Engineering Services. IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR). Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Homeland Security.

Department of Homeland Security · NAICS 541330 · PSC DA01
Last updated: April 8, 2026

Visible recipients

21

Mapped obligations

$40,963,511,830

State overlap

3

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541330 and PSC DA01

Ironarch Technology LLC

Arlington, VA

Ironarch Technology LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $2,285,492 in visible federal obligations across 41 awards or transactions. Department of Veterans Affairs 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 R499.

$28,752,378
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