Department of Homeland Security NAICS 488190 and PSC R425 contractors

Other Support Activities for Air Transportation. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 488190 · PSC R425

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$38,694,005,931

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 488190 and PSC R425

Amentum Services, Inc.

Chantilly, VA

Chantilly, VA | 1,909 awards | Top agency Department of Defense | NAICS 561210

$6,962,992,908

Vertex Aerospace LLC

Madison, MS

Madison, MS | 623 awards | Top agency Department of Defense | NAICS 488190

$14,128,378,534

General Atomics Aeronautical Systems, Inc.

Poway, CA

Poway, CA | 452 awards | Top agency Department of Defense | NAICS 336411

$6,296,628,806

General Atomics

San Diego, CA

San Diego, CA | 243 awards | Top agency Department of Defense | NAICS 336411

$6,582,796,670

Strategic Technology Institute INC

Rockville, MD

Rockville, MD | 130 awards | Top agency Department of Defense | NAICS 336411

$103,412,969

Tyonek Services Overhaul Facility-stennis, LLC

Kiln, MS

Kiln, MS | 42 awards | Top agency Department of Defense | NAICS 488190

$411,810,476

Booz Allen Hamilton Engineering Services, LLC

Annapolis Junction, MD

Annapolis Junction, MD | 11 awards | Top agency Department of Defense | NAICS 541330

$543,015,868

Northrop Grumman Technical Services, Inc.

Mclean, VA

Mclean, VA | 26 awards | Top agency Department of Defense | NAICS 488190

$3,664,969,700

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