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Home/NAICS 813920/PSC R499

NAICS + PSC page

NAICS 813920 and PSC R499 contractors

Professional Organizations. SUPPORT- PROFESSIONAL: OTHER. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 813920 + PSC R499
Last updated: April 5, 2026

Visible recipients

2

Mapped obligations

$647,957,038

State overlap

0

Top recipients

Visible recipients in the NAICS 813920 and PSC R499 overlap

Maximus INC

Mclean, VA

Maximus INC is a federal category business profile based in Mclean, VA. The current public data layer shows $194,545,463 in visible federal obligations across 5 awards or transactions. Department of Justice 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 R408.

$48,773,291

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

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