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Home/Department of Defense/NAICS 541990/PSC Y1AA

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Department of Defense NAICS 541990 and PSC Y1AA contractors

All Other Professional, Scientific, and Technical Services. CONSTRUCTION OF OFFICE BUILDINGS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541990 · PSC Y1AA
Last updated: April 7, 2026

Visible recipients

2

Mapped obligations

$192,662,870

State overlap

2

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC Y1AA

Walsh Federal LLC

Chicago, IL

Walsh Federal LLC is a federal category business profile based in Chicago, IL. The current public data layer shows $406,413,501 in visible federal obligations across 169 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1BZ.

$174,318,316

Nv5 Consultants, Inc.

Saint Paul, MN

Nv5 Consultants, Inc. is a federal category business profile based in Saint Paul, MN. The current public data layer shows $66,922 in visible federal obligations across 31 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC C211.

$18,344,554

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