Department of Homeland Security NAICS 541712 and PSC D399 contractors

Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology). IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541712 · PSC D399

Last updated: April 9, 2026

Visible recipients

Mapped obligations

$39,416,842,762

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541712 and PSC D399

Booz Allen Hamilton INC

Mclean, VA

Mclean, VA | 3,955 awards | Top agency Department of Defense | NAICS 541512

$13,632,331,660

Caci, Inc. - Federal

Chantilly, VA

Chantilly, VA | 1,121 awards | Top agency Department of Defense | NAICS 541512

$5,372,416,962

Leidos, Inc.

Reston, VA

Reston, VA | 9,621 awards | Top agency Department of Defense | NAICS 541512

$15,446,533,908

Mantech Advanced Systems International, Inc.

Herndon, VA

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

$1,820,646,792

Jacobs Technology Inc.

Huntsville, AL

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

$972,123,299

Peraton Technology Services Inc.

Chantilly, VA

Chantilly, VA | 259 awards | Top agency General Services Administration | NAICS 541330

$176,321,378

Harmonia Holdings Group, LLC

Mclean, VA

Mclean, VA | 80 awards | Top agency Department of Agriculture | NAICS 541511

$63,385,014

Data Systems Analysts INC

Fairfax, VA

Fairfax, VA | 12 awards | Top agency Department of Defense | NAICS 541712

$1,933,083,749

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