Department of Homeland Security NAICS 541519 and PSC D399 contractors

Other Computer Related Services. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541519 · PSC D399

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$86,269,481,410

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541519 and PSC D399

Ardent Management Consulting, LLC

Vienna, VA

Vienna, VA | 82 awards | Top agency Department of Homeland Security | NAICS 541511

$143,629,629

Harmonia Holdings Group, LLC

Mclean, VA

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

$130,614,776

Sevatec LLC

Reston, VA

Reston, VA | 17 awards | Top agency Department of Homeland Security | NAICS 541519

$963,604,363

Sekon Enterprise, LLC

Vienna, VA

Vienna, VA | 24 awards | Top agency Department of Defense | NAICS 541512

$23,854,397

Data Systems Analysts INC

Fairfax, VA

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

$916,990,120

Leidos Innovations Corporation

Gaithersburg, MD

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

$5,621,720

Link Solutions INC

Mc Lean, VA

Mc Lean, VA | 51 awards | Top agency Department of Defense | NAICS 541512

$78,696,115

Trillion Technology Solutions INC

Reston, VA

Reston, VA | 57 awards | Top agency Department of Homeland Security | NAICS 541512

$23,536,805

Clearavenue LLC

Mc Lean, VA

Mc Lean, VA | 36 awards | Top agency General Services Administration | NAICS 541519

$175,347,724

Peraton Government Communications Inc.

Herndon, VA

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

$1,615,598,378

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