Department of Homeland Security NAICS 541990 and PSC R405 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: OPERATIONS RESEARCH/QUANTITATIVE ANALYSIS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541990 · PSC R405

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$117,613,470

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541990 and PSC R405

Reli Group INC

Windsor Mill, MD

Windsor Mill, MD | 119 awards | Top agency Department of Health and Human Services | NAICS 541611

$100,207,221

Catapult Consultants LLC

Fredericksburg, VA

Fredericksburg, VA | 5 awards | Top agency Department of Defense | NAICS 541611

$17,406,249

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