Department of Defense NAICS 541990 and PSC R421 contractors

All Other Professional, Scientific, and Technical Services. TECHNICAL ASSISTANCE. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541990 · PSC R421

Last updated: April 8, 2026

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Mapped obligations

$434,075,092

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC R421

Caci Intelligence Solutions, LLC

Herndon, VA

Herndon, VA | 5 awards | Top agency Department of Defense | NAICS 541990

Cdm Smith Inc.

Carlsbad, CA

Carlsbad, CA | 5 awards | Top agency Department of Defense | NAICS 237990

Altarum Institute

Novi, MI

Novi, MI | 62 awards | Top agency Department of Health and Human Services | NAICS 541611

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