National Aeronautics and Space Administration NAICS 541990 and PSC R425 contractors

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

National Aeronautics and Space Administration · NAICS 541990 · PSC R425

Last updated: April 9, 2026

Visible recipients

Mapped obligations

$6,911,618,651

State overlap

Top recipients

Visible recipients in the National Aeronautics and Space Administration overlap of NAICS 541990 and PSC R425

Mantech Systems Engineering Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$461,632,571

Modern Technology Solutions, Inc.

Alexandria, VA

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

$527,501,200

Linquest Corporation

Herndon, VA

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

$1,736,179,612

Systems Planning And Analysis, Inc.

Alexandria, VA

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

$1,177,852,158

Axient LLC

Arlington, VA

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

$1,293,253,336

Mantech Srs Technologies, Inc.

Herndon, VA

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

$655,600,634

Ensco INC

Vienna, VA

Vienna, VA | 124 awards | Top agency Department of Defense | NAICS 541712

$334,192,529

Rsi-quantitech Jv LLC

Huntsville, AL

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

$214,580,924

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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