Department of Transportation NAICS 541990 and PSC B506 contractors

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

Department of Transportation · NAICS 541990 · PSC B506

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$1,557,810,349

State overlap

Top recipients

Visible recipients in the Department of Transportation overlap of NAICS 541990 and PSC B506

Westat, Inc.

Bethesda, MD

Westat, Inc. is a federal category business profile based in Bethesda, MD. The current public data layer shows $343,608,618 in visible federal obligations across 469 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 AN11.

$1,557,810,349