General Services Administration NAICS 541990 and PSC R425 contractors

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

General Services Administration · NAICS 541990 · PSC R425

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$18,564,312,246

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 541990 and PSC R425

Axient LLC

Arlington, VA

Arlington, VA | 83 awards | Top agency Department of Defense | NAICS 541330

$1,293,253,336

Macaulay-brown, Inc.

Dayton, OH

Dayton, OH | 5 awards | Top agency General Services Administration | NAICS 541511

$3,926,425

Janus Research Group, LLC

Evans, GA

Evans, GA | 103 awards | Top agency General Services Administration | NAICS 611430

$403,749,573

Akima Systems Engineering LLC

Herndon, VA

Herndon, VA | 233 awards | Top agency Department of Defense | NAICS 541512

$106,536,292

Mantech Srs Technologies, Inc.

Herndon, VA

Herndon, VA | 76 awards | Top agency Department of Defense | NAICS 541330

$655,600,634

Noblis Msd LLC

Philadelphia, PA

Philadelphia, PA | 481 awards | Top agency Department of Defense | NAICS 541330

$975,087,420

Rsi-quantitech Jv LLC

Huntsville, AL

Huntsville, AL | 33 awards | Top agency National Aeronautics and Space Administration | NAICS 541715

$214,580,924

Bowhead Total Enterprise Solutions, LLC

Springfield, VA

Springfield, VA | 75 awards | Top agency Department of Defense | NAICS 541513

$85,933,084

Asrc Federal Professional Services, LLC

Beltsville, MD

Beltsville, MD | 54 awards | Top agency Department of Defense | NAICS 561611

$135,283,342

Riverside Research Institute

New York, NY

New York, NY | 45 awards | Top agency Department of Defense | NAICS 541712

$510,825,687

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