General Services Administration NAICS 541330 contractors

Engineering Services. Contractors in this NAICS lane under General Services Administration.

Agency: General Services Administration

Last updated: April 17, 2026

Visible recipients

227

Mapped obligations

$261,323,262,408

Visible recipients tied to General Services Administration and NAICS 541330

Mantech Mission, Cyber And Technology Solutions, Inc.

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541690

$87,646,060

Hii Mission Technologies CORP

Willowbrook, IL

Willowbrook, IL | 464 awards | Top agency Department of Defense | NAICS 541330

$5,892,249,412

M. C. Dean, Inc.

Tysons, VA

Tysons, VA | 1,299 awards | Top agency Department of Defense | NAICS 541330

$1,574,954,186

Cae USA Mission Solutions Inc.

Tampa, FL

Tampa, FL | 5 awards | Top agency Department of Defense | NAICS 336413

$20,496,474

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

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