General Services Administration NAICS 541350 and PSC R425 contractors

Building Inspection Services. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Cross-code overlap under General Services Administration.

General Services Administration · NAICS 541350 · PSC R425

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$830,526,908

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 541350 and PSC R425

Sigma Defense Systems LLC

Perry, GA

Perry, GA | 132 awards | Top agency General Services Administration | NAICS 334290

Karsun Solutions LLC

Herndon, VA

Herndon, VA | 125 awards | Top agency Department of Transportation | NAICS 541519

Ad Hoc LLC

Mclean, VA

Mclean, VA | 36 awards | Top agency Department of Health and Human Services | NAICS 541511

Nv5 Consultants, Inc.

Saint Paul, MN

Saint Paul, MN | 31 awards | Top agency Department of State | NAICS 541330

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