Department of Homeland Security NAICS 541990 and PSC R499 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541990 · PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$16,624,909,430

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541990 and PSC R499

Chenega Enterprise Systems & Solutions, LLC

Chesapeake, VA

Chesapeake, VA | 180 awards | Top agency Department of Health and Human Services | NAICS 541611

$287,418,826

Asrc Federal Professional Services, LLC

Beltsville, MD

Beltsville, MD | 54 awards | Top agency Department of Defense | NAICS 561611

$313,129,249

Goldbelt C6, LLC

Chesapeake, VA

Chesapeake, VA | 349 awards | Top agency Department of Health and Human Services | NAICS 541990

$284,559,309

Concept Plus, LLC

Fairfax, VA

Fairfax, VA | 66 awards | Top agency Department of Defense | NAICS 541511

$48,183,204

Prescient Edge Corporation

Mc Lean, VA

Mc Lean, VA | 78 awards | Top agency General Services Administration | NAICS 541715

$45,954,912

Digital Management LLC

Mc Lean, VA

Mc Lean, VA | 73 awards | Top agency Department of Defense | NAICS 541512

$204,894,604

Fedwriters, Inc.

Fairfax, VA

Fairfax, VA | 256 awards | Top agency Department of Commerce | NAICS 541611

$32,654,347

Olgoonik Worldwide Services LLC

Anchorage, AK

Anchorage, AK | 139 awards | Top agency Department of State | NAICS 493110

$38,255,899

Cape Fox Federal Integrators, LLC

Chantilly, VA

Chantilly, VA | 32 awards | Top agency Department of Defense | NAICS 541330

$68,079,889

Ellumen, Inc.

Silver Spring, MD

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

$33,824,251

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