Department of the Interior NAICS 813920 and PSC R410 contractors

Professional Organizations. SUPPORT- PROFESSIONAL: PROGRAM EVALUATION/REVIEW/DEVELOPMENT. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of the Interior.

Department of the Interior · NAICS 813920 · PSC R410

Last updated: April 5, 2026

Visible recipients

Mapped obligations

$110,067,825

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 813920 and PSC R410

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.

$110,067,825