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Department of Health and Human Services NAICS 541990 and PSC B599 contractors

All Other Professional, Scientific, and Technical Services. SPECIAL STUDIES/ANALYSIS- OTHER. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Health and Human Services.

Department of Health and Human Services · NAICS 541990 · PSC B599
Last updated: April 8, 2026

Visible recipients

4

Mapped obligations

$600,318,989

State overlap

4

Top recipients

Visible recipients in the Department of Health and Human Services overlap of NAICS 541990 and PSC B599

Mathematica Inc.

Princeton, NJ

Mathematica Inc. is a federal category business profile based in Princeton, NJ. The current public data layer shows $108,612,602 in visible federal obligations across 183 awards or transactions. Department of Health and Human Services appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541720 (Research and Development in the Social Sciences and Humanities). The profile also shows meaningful product and service activity in PSC R499.

$350,191,218

Janus Research Group, LLC

Evans, GA

Janus Research Group, LLC is a federal category business profile based in Evans, GA. The current public data layer shows $76,610,451 in visible federal obligations across 103 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 611430 (Professional and Management Development Training). The profile also shows meaningful product and service activity in PSC R425.

$214,695,706

Insight Policy Research, Inc.

Arlington, VA

Insight Policy Research, Inc. is a federal 8a program participant profile based in Arlington, VA. The current public data layer shows $4,289,953 in visible federal obligations across 23 awards or transactions. Department of Health and Human Services appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R499.

$35,471,459

Ukpeagvik Inupiat Corporation

Barrow, AK

Ukpeagvik Inupiat Corporation is a federal alaskan native corporation owned firm profile based in Barrow, AK. The current public data layer shows $295,000 in visible federal obligations across 5 awards or transactions. Department of the Treasury appears as the strongest visible awarding agency. Top industry concentration is in NAICS 531120 (Lessors of Nonresidential Buildings (except Miniwarehouses)). The profile also shows meaningful product and service activity in PSC X119.

-$39,394