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NAICS 813920 and PSC R499 contractors in Wisconsin

Professional Organizations. SUPPORT- PROFESSIONAL: OTHER. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Wisconsin.

Wisconsin · NAICS 813920 · PSC R499

Last updated: April 5, 2026

Visible recipients

Mapped obligations

$599,183,747

Buyer overlap

Top recipients

Visible recipients in the Wisconsin overlap of NAICS 813920 and PSC R499

The Lewin Group, Inc.

La Crosse, WI

The Lewin Group, Inc. is a federal category business profile based in La Crosse, WI. The current public data layer shows $46,392,453 in visible federal obligations across 82 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.

$599,183,747