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

Modern Technology Solutions, Inc.

Alexandria, VA

Alexandria, VA | 285 awards | Top agency General Services Administration | NAICS 541712

$216,557,643

Bae Systems San Diego Ship Repair Inc.

San Diego, CA

San Diego, CA | 204 awards | Top agency Department of Defense | NAICS 336611

$5,954,450

Tetra Tech Ec, Inc.

San Diego, CA

San Diego, CA | 5 awards | Top agency Department of Defense | NAICS 562910

$83,865,987

Odyssey Systems Consulting Group, Ltd.

Wakefield, MA

Wakefield, MA | 257 awards | Top agency Department of Defense | NAICS 541712

$29,961,699

Mantech Mission, Cyber And Technology Solutions, Inc.

Fairfax, VA

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

$87,646,060

Pae Government Services, Inc.

Chantilly, VA

Chantilly, VA | 943 awards | Top agency Department of State | NAICS 561210

$595,486,483

Hii Mission Technologies CORP

Willowbrook, IL

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

$5,892,249,412

Ecc International, LLC

Burlingame, CA

Burlingame, CA | 5 awards | Top agency Department of Defense | NAICS 236220

$37,480

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

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