Department of Homeland Security NAICS 541990 and PSC D399 contractors

All Other Professional, Scientific, and Technical Services. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541990 · PSC D399

Last updated: April 12, 2026

Visible recipients

Mapped obligations

$6,502,636,464

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541990 and PSC D399

Ellumen, Inc.

Silver Spring, MD

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

$50,998,409

Link Solutions INC

Mc Lean, VA

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

$76,124,705

Trillion Technology Solutions INC

Reston, VA

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

$20,963,804

Arc Aspicio LLC

Arlington, VA

Arlington, VA | 59 awards | Top agency Department of Homeland Security | NAICS 541512

$41,152,123

Solutions Through Innovative Technologies INC

Fairborn, OH

Fairborn, OH | 72 awards | Top agency Department of Defense | NAICS 541330

$64,451,195

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