Department of Homeland Security PSC D399 contractors

IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Contractors in this PSC lane under Department of Homeland Security.

Agency: Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$65,800,440,470

Visible recipients tied to Department of Homeland Security and PSC D399

Booz Allen Hamilton INC

Mclean, VA

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

$7,734,112,196

General Dynamics Information Technology, Inc.

Falls Church, VA

Falls Church, VA | 3,177 awards | Top agency Department of Defense | NAICS 541512

$13,670,954,543

Caci, Inc. - Federal

Chantilly, VA

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

$2,820,686,949

Deloitte Consulting LLP

Arlington, VA

Arlington, VA | 1,829 awards | Top agency Department of Defense | NAICS 541512

$2,610,881,289

Leidos, Inc.

Reston, VA

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

$9,693,981,386

Caci Premier Technology, LLC

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Office of Personnel Management | NAICS 561611

$191,767,901

Mantech Advanced Systems International, Inc.

Herndon, VA

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

$1,223,124,970

Peraton Enterprise Solutions LLC

Chantilly, VA

Chantilly, VA | 415 awards | Top agency Department of Defense | NAICS 541512

$11,559,266,841

Chenega Federal Systems, LLC

Bethesda, MD

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

$102,402,291

Hms Technologies, Inc.

Martinsburg, WV

Martinsburg, WV | 5 awards | Top agency Department of Veterans Affairs | NAICS 541512

$118,957,442

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