General Services Administration NAICS 541990 and PSC R408 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT. Cross-code overlap under General Services Administration.

General Services Administration · NAICS 541990 · PSC R408

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$15,221,517,279

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 541990 and PSC R408

Deloitte Consulting LLP

Arlington, VA

Arlington, VA | 1,829 awards | Top agency Department of Defense | NAICS 541512

$7,224,308,120

Alion Science And Technology Corporation

Chicago, IL

Chicago, IL | 5 awards | Top agency Department of Defense | NAICS 541710

$136,762,259

Amentum Government Services, Inc.

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Department of Defense | NAICS 811118

$499,403,484

Modern Technology Solutions, Inc.

Alexandria, VA

Alexandria, VA | 285 awards | Top agency General Services Administration | NAICS 541712

$171,392,603

Linquest Corporation

Herndon, VA

Herndon, VA | 249 awards | Top agency Department of Defense | NAICS 541715

$390,655,617

Systems Planning And Analysis, Inc.

Alexandria, VA

Alexandria, VA | 238 awards | Top agency Department of Defense | NAICS 541330

$640,503,544

Noblis, Inc.

Reston, VA

Reston, VA | 372 awards | Top agency Department of Transportation | NAICS 541330

$770,200,138

Credence Management Solutions Limited Liability Company

Mclean, VA

Mclean, VA | 222 awards | Top agency Department of Defense | NAICS 541330

$371,546,801

Sos International LLC

Reston, VA

Reston, VA | 138 awards | Top agency Department of Defense | NAICS 561210

$388,501,145

Axle Informatics, LLC

North Bethesda, MD

North Bethesda, MD | 476 awards | Top agency Department of Health and Human Services | NAICS 541519

$275,540,824

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