Department of Transportation PSC R499 contractors

SUPPORT- PROFESSIONAL: OTHER. Contractors in this PSC lane under Department of Transportation.

Agency: Department of Transportation

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$44,487,166,443

Visible recipients tied to Department of Transportation and PSC R499

Northrop Grumman Information Technology INC

Mclean, VA

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

$418,398,148

The Boeing Company

Saint Louis, MO

Saint Louis, MO | 1,195 awards | Top agency Department of Defense | NAICS 336411

$18,733,186,635

Science Applications International Corporation

Reston, VA

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

$4,067,361,331

Liberty It Solutions LLC

Mc Lean, VA

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

$248,757,357

Leidos, Inc.

Reston, VA

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

$4,036,713,756

Serco INC

Herndon, VA

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

$4,166,324,782

Parsons Government Services Inc.

Centreville, VA

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

$1,928,199,424

Kbr Wyle Services, LLC

Fulton, MD

Fulton, MD | 645 awards | Top agency Department of Defense | NAICS 541712

$1,739,708,903

Navajo Nation Tribal Government

Window Rock, AZ

Window Rock, AZ | 338 awards | Top agency Department of the Treasury | NAICS 621512

$147,956

Westat, Inc.

Bethesda, MD

Bethesda, MD | 469 awards | Top agency Department of Health and Human Services | NAICS 541720

$852,917,988

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