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

Mantech Srs Technologies, Inc.

Herndon, VA

Herndon, VA | 76 awards | Top agency Department of Defense | NAICS 541330

$470,996,848

Smartronix, LLC

Hollywood, MD

Hollywood, MD | 179 awards | Top agency General Services Administration | NAICS 541330

$1,875,797,683

Lb & B Associates INC

Columbia, MD

Columbia, MD | 249 awards | Top agency Department of Defense | NAICS 561210

$402,447,991

Ensco INC

Vienna, VA

Vienna, VA | 124 awards | Top agency Department of Defense | NAICS 541712

$261,656,675

Alutiiq Information Management, LLC

Anchorage, AK

Anchorage, AK | 111 awards | Top agency Department of State | NAICS 541330

$224,960,358

Noblis Msd LLC

Philadelphia, PA

Philadelphia, PA | 481 awards | Top agency Department of Defense | NAICS 541330

$1,285,831,868

Analytic Services Inc.

Arlington, VA

Arlington, VA | 91 awards | Top agency Department of Defense | NAICS 541611

$137,301,525

Black & Veatch Special Projects Corp.

Overland Park, KS

Overland Park, KS | 145 awards | Top agency Department of Defense | NAICS 541330

$855,670,274

Noresco, LLC

Westborough, MA

Westborough, MA | 81 awards | Top agency Department of Defense | NAICS 541330

$1,238,583,461

Textron Aviation INC

Wichita, KS

Wichita, KS | 72 awards | Top agency Department of Defense | NAICS 336411

$7,921,858

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