Department of Transportation NAICS 541990 and PSC R425 contractors

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

Department of Transportation · NAICS 541990 · PSC R425

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$22,558,129,173

State overlap

Top recipients

Visible recipients in the Department of Transportation overlap of NAICS 541990 and PSC R425

The Mitre Corporation

Mc Lean, VA

Mc Lean, VA | 880 awards | Top agency Department of Defense | NAICS 541990

$17,081,183,080

Applied Research Associates, Inc.

Albuquerque, NM

Albuquerque, NM | 564 awards | Top agency Department of Defense | NAICS 541712

$1,069,703,475

Noblis, Inc.

Reston, VA

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

$1,201,445,576

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

Ensco INC

Vienna, VA

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

$334,192,529

The Bizzell Group LLC

Hyattsville, MD

Hyattsville, MD | 126 awards | Top agency Department of Health and Human Services | NAICS 541611

$84,089,625

Cherokee Nation Government Solutions LLC

Tulsa, OK

Tulsa, OK | 56 awards | Top agency Department of Defense | NAICS 541330

$23,448,061

Inalab Consulting, Inc.

Fairfax, VA

Fairfax, VA | 136 awards | Top agency Department of Defense | NAICS 541330

$53,077,790

Jefferson Consulting Group LLC

Washington, DC

Washington, DC | 103 awards | Top agency Agency for International Development | NAICS 541611

$83,050,917

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