Department of Homeland Security NAICS 541612 and PSC R499 contractors

Human Resources Consulting Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541612 · PSC R499

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$5,561,627,614

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541612 and PSC R499

Serco INC

Herndon, VA

Herndon, VA | 1,016 awards | Top agency Department of Defense | NAICS 541330

$4,831,316,571

Atlas Research LLC

Washington, DC

Washington, DC | 16 awards | Top agency Department of Veterans Affairs | NAICS 541611

$120,251,465

Peraton Risk Decision Inc.

Loveland, CO

Loveland, CO | 54 awards | Top agency Office of Personnel Management | NAICS 561611

$306,858,085

Credence Dynamo Solutions LLC

Vienna, VA

Vienna, VA | 102 awards | Top agency Department of Defense | NAICS 541330

$101,528,378

Saliense Consulting LLC

Mclean, VA

Mclean, VA | 74 awards | Top agency Department of Homeland Security | NAICS 541611

$55,833,356

Sekon Enterprise, LLC

Vienna, VA

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

$30,457,881

Leidos Innovations Corporation

Gaithersburg, MD

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

$1,149,764

Cameo Consulting Group LLC

Rockville, MD

Rockville, MD | 80 awards | Top agency Department of Veterans Affairs | NAICS 541611

$38,006,658

I-link Solutions, Inc.

Chantilly, VA

Chantilly, VA | 26 awards | Top agency Department of Homeland Security | NAICS 541512

$7,500

Arc Aspicio LLC

Arlington, VA

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

$76,217,956

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