Department of Homeland Security PSC R499 contractors in Maryland

SUPPORT- PROFESSIONAL: OTHER. Contractors in this state-buyer-PSC overlap.

Maryland + Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$3,815,640,569

Visible recipients tied to Department of Homeland Security, Maryland, and PSC R499

Bae Systems Technology Solutions & Services Inc.

Rockville, MD

Rockville, MD | 1,291 awards | Top agency Department of Defense | NAICS 541330

$1,052,930,282

Chenega Federal Systems, LLC

Bethesda, MD

Bethesda, MD | 20 awards | Top agency Department of Defense | NAICS 541330

$58,729,546

Reli Group INC

Windsor Mill, MD

Windsor Mill, MD | 119 awards | Top agency Department of Health and Human Services | NAICS 541611

$132,097,857

Strategic Technology Institute INC

Rockville, MD

Rockville, MD | 130 awards | Top agency Department of Defense | NAICS 336411

$8,962,569

Asrc Federal Professional Services, LLC

Beltsville, MD

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

$281,574,588

Global Alliant INC

Olney, MD

Olney, MD | 34 awards | Top agency Department of Health and Human Services | NAICS 541519

A Square Group LLC

Frederick, MD

Frederick, MD | 45 awards | Top agency Department of Health and Human Services | NAICS 541512

$85,803,135

Patriot LLC

Columbia, MD

Columbia, MD | 47 awards | Top agency Department of Health and Human Services | NAICS 541512

$19,426,323

Ellumen, Inc.

Silver Spring, MD

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

$29,214,485

Systems Plus, Inc.

Rockville, MD

Rockville, MD | 56 awards | Top agency Department of Defense | NAICS 541330

$344,169,411

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