Department of Homeland Security NAICS 541330 and PSC R425 contractors

Engineering Services. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541330 · PSC R425

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$302,955,853,577

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541330 and PSC R425

Mantech Systems Engineering Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$1,578,993,148

L3harris Technologies Integrated Systems L.p.

Greenville, TX

Greenville, TX | 403 awards | Top agency Department of Defense | NAICS 336413

$6,868,105,562

Serco INC

Herndon, VA

Herndon, VA | 1,016 awards | Top agency Department of Defense | NAICS 541330

$5,322,255,015

The Mitre Corporation

Mc Lean, VA

Mc Lean, VA | 880 awards | Top agency Department of Defense | NAICS 541990

$13,883,938,603

Mantech Advanced Systems International, Inc.

Herndon, VA

Herndon, VA | 683 awards | Top agency Department of Defense | NAICS 541330

$6,031,167,529

Bae Systems Information And Electronic Systems Integration Inc.

Nashua, NH

Nashua, NH | 383 awards | Top agency Department of Defense | NAICS 334511

$4,116,221,895

Chenega Federal Systems, LLC

Bethesda, MD

Bethesda, MD | 20 awards | Top agency Department of Defense | NAICS 541330

$441,586,112

The Charles Stark Draper Laboratory, Inc.

Cambridge, MA

Cambridge, MA | 160 awards | Top agency Department of Defense | NAICS 541330

$5,176,312,637

Ecs Federal, LLC

Fairfax, VA

Fairfax, VA | 401 awards | Top agency Department of Defense | NAICS 541512

$1,460,190,296

Jacobs Technology Inc.

Huntsville, AL

Huntsville, AL | 5 awards | Top agency Department of Defense | NAICS 541511

$702,338,094

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