Department of Transportation NAICS 541512 and PSC R499 contractors

Computer Systems Design Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Transportation.

Department of Transportation · NAICS 541512 · PSC R499

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$68,471,649,147

State overlap

Top recipients

Visible recipients in the Department of Transportation overlap of NAICS 541512 and PSC R499

Northrop Grumman Information Technology INC

Mclean, VA

Mclean, VA | 5 awards | Top agency Department of Defense | NAICS 541511

$818,555,537

Science Applications International Corporation

Reston, VA

Reston, VA | 3,314 awards | Top agency Department of Defense | NAICS 541512

$18,441,839,851

Liberty It Solutions LLC

Mc Lean, VA

Mc Lean, VA | 5 awards | Top agency Department of Veterans Affairs | NAICS 541512

$3,061,308,572

Leidos, Inc.

Reston, VA

Reston, VA | 9,621 awards | Top agency Department of Defense | NAICS 541512

$25,792,207,057

Serco INC

Herndon, VA

Herndon, VA | 1,016 awards | Top agency Department of Defense | NAICS 541330

$5,983,010,376

Parsons Government Services Inc.

Centreville, VA

Centreville, VA | 598 awards | Top agency Department of Defense | NAICS 541712

$2,901,835,400

Halvik, LLC

Vienna, VA

Vienna, VA | 202 awards | Top agency Department of Defense | NAICS 541330

$401,075,263

Credence Dynamo Solutions LLC

Vienna, VA

Vienna, VA | 102 awards | Top agency Department of Defense | NAICS 541330

$101,141,957

Mantech Enterprise Management, Inc.

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541712

$17,042,814

Delta Solutions & Strategies LLC

Colorado Springs, CO

Colorado Springs, CO | 47 awards | Top agency Department of Defense | NAICS 541330

$268,259,553

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