Department of Defense NAICS 541330 contractors

Engineering Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 19, 2026

Visible recipients

391

Mapped obligations

$384,687,047,787

Visible recipients tied to Department of Defense and NAICS 541330

Caci Nss, LLC

Reston, VA

Reston, VA | 109 awards | Top agency Department of Defense | NAICS 541519

$2,686,506,540

Kiewit Building Group Inc.

Lone Tree, CO

Lone Tree, CO | 5 awards | Top agency Department of Defense | NAICS 236220

Gilbane Building Company

Baltimore, MD

Baltimore, MD | 5 awards | Top agency Department of Health and Human Services | NAICS 236220

$71,181,563

Magellan Federal, Inc.

Arlington, VA

Arlington, VA | 118 awards | Top agency Department of Defense | NAICS 624190

$96,813,117

Applied Research Associates, Inc.

Albuquerque, NM

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

$818,811,767

Goldbelt Falcon LLC

Chesapeake, VA

Chesapeake, VA | 20 awards | Top agency Department of Defense | NAICS 811219

$14,253,816

Bae Systems Information & Electronic Systems Integration INC

Hudson, NH

Hudson, NH | 24 awards | Top agency Department of Defense | NAICS 336414

$89,968,974

Linquest Corporation

Herndon, VA

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

$417,735,876

Systems Planning And Analysis, Inc.

Alexandria, VA

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

$1,387,600,926

Pae Applied Technologies LLC

Chantilly, VA

Chantilly, VA | 97 awards | Top agency Department of Defense | NAICS 561210

$1,398,918,506

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