Department of Defense PSC D399 contractors

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

Agency: Department of Defense

Last updated: April 17, 2026

Visible recipients

159

Mapped obligations

$98,114,873,825

Visible recipients tied to Department of Defense and PSC D399

Leidos, Inc.

Reston, VA

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

$9,693,981,386

Peraton Inc.

Herndon, VA

Herndon, VA | 1,140 awards | Top agency Department of Defense | NAICS 541330

$1,420,758,576

Caci Premier Technology, LLC

Chantilly, VA

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

$191,767,901

Cgi Federal Inc.

Fairfax, VA

Fairfax, VA | 1,056 awards | Top agency Department of State | NAICS 541512

$2,959,846,259

Tybrin Corporation

Fort Walton Beach, FL

Fort Walton Beach, FL | 5 awards | Top agency Department of Defense | NAICS 541710

$79,024,950

Northrop Grumman Systems Corporation

Melbourne, FL

Melbourne, FL | 713 awards | Top agency Department of Defense | NAICS 336411

$6,748,722,186

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

Ecs Federal, LLC

Fairfax, VA

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

$403,350,244

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