Department of Defense NAICS 541350 and PSC AD21 contractors

Building Inspection Services. R&D- DEFENSE OTHER: SERVICES (BASIC RESEARCH). Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541350 · PSC AD21

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$4,874

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541350 and PSC AD21

Chenega Security & Protection Services, LLC

Chantilly, VA

Chenega Security & Protection Services, LLC is a federal 8a program participant profile based in Chantilly, VA. The current public data layer shows $265,754,810 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 561612 (Security Guards and Patrol Services). The profile also shows meaningful product and service activity in PSC S206.

$4,874