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

Vertosoft, LLC

Leesburg, VA

Leesburg, VA | 88 awards | Top agency Department of Defense | NAICS 518210

$25,587,614

Mantech Security Technologies Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541512

$23,451,181

Bluewater Federal Solutions, Inc.

Arlington, VA

Arlington, VA | 32 awards | Top agency Department of Defense | NAICS 541512

$175,150,362

Patriot LLC

Columbia, MD

Columbia, MD | 47 awards | Top agency Department of Health and Human Services | NAICS 541512

$98,279,767

Cape Fox Federal Integrators, LLC

Chantilly, VA

Chantilly, VA | 32 awards | Top agency Department of Defense | NAICS 541330

$15,731,939

Ellumen, Inc.

Silver Spring, MD

Silver Spring, MD | 52 awards | Top agency Department of Defense | NAICS 541512

$46,388,643

Systems Plus, Inc.

Rockville, MD

Rockville, MD | 56 awards | Top agency Department of Defense | NAICS 541330

$40,760,103

Tyto Athene, LLC

Reston, VA

Reston, VA | 77 awards | Top agency Department of Defense | NAICS 517110

$59,564,222

Collins Consulting INC

Schaumburg, IL

Schaumburg, IL | 5 awards | Top agency Department of Defense | NAICS 541511

$4,168,464

Lintech Global INC

Mclean, VA

Mclean, VA | 70 awards | Top agency Department of Defense | NAICS 541512

$105,912,161

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