Department of Defense NAICS 541990 and PSC B599 contractors

All Other Professional, Scientific, and Technical Services. SPECIAL STUDIES/ANALYSIS- OTHER. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541990 · PSC B599

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$465,695,006

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC B599

Amentum National Security Programs, INC

Chantilly, VA

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

Janus Research Group, LLC

Evans, GA

Evans, GA | 103 awards | Top agency General Services Administration | NAICS 611430

Insight Policy Research, Inc.

Arlington, VA

Arlington, VA | 23 awards | Top agency Department of Health and Human Services | NAICS 541611

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