Department of Homeland Security NAICS 517110 and PSC D399 contractors

Wired Telecommunications Carriers. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 517110 · PSC D399

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$39,454,392,830

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 517110 and PSC D399

General Dynamics Information Technology, Inc.

Falls Church, VA

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

$18,298,857,410

Peraton Enterprise Solutions LLC

Chantilly, VA

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

$12,540,281,502

Caci Nss, LLC

Reston, VA

Reston, VA | 109 awards | Top agency Department of Defense | NAICS 541519

$1,974,073,995

Aoc Connect, LLC

Ashburn, VA

Ashburn, VA | 241 awards | Top agency Department of Defense | NAICS 517110

$156,739,861

Caci-iss, LLC

Chantilly, VA

Chantilly, VA | 26 awards | Top agency Department of Defense | NAICS 517110

$1,679,451,979

Leidos Innovations Corporation

Gaithersburg, MD

Gaithersburg, MD | 2 awards | Top agency Department of Transportation | NAICS 334290

Intellibridge, LLC

Mc Lean, VA

Mc Lean, VA | 45 awards | Top agency Department of Health and Human Services | NAICS 541512

$162,025,926

Peraton Government Communications Inc.

Herndon, VA

Herndon, VA | 42 awards | Top agency Department of Defense | NAICS 517110

$1,889,117,477

Telos Corporation

Ashburn, VA

Ashburn, VA | 73 awards | Top agency Department of Defense | NAICS 517110

$1,774,411,847

The Centech Group Inc.

Bethesda, MD

Bethesda, MD | 40 awards | Top agency Department of Defense | NAICS 517110

$979,432,833

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