Department of Homeland Security NAICS 541611 and PSC DA01 contractors

Administrative Management and General Management Consulting Services. IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR). Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541611 · PSC DA01

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$18,607,885,335

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541611 and PSC DA01

Zantech It Services, Inc.

Reston, VA

Reston, VA | 51 awards | Top agency Department of Homeland Security | NAICS 541611

$198,957,586

Onezero Solutions, LLC

Alexandria, VA

Alexandria, VA | 31 awards | Top agency Department of Homeland Security | NAICS 541512

$8,283,708

Ironarch Technology LLC

Arlington, VA

Arlington, VA | 41 awards | Top agency Department of Veterans Affairs | NAICS 541330

$13,363,813

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