Department of Homeland Security NAICS 541330 contractors in Maryland

Engineering Services. Contractors in this state-buyer-industry overlap.

Maryland + Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$19,120,660,256

Visible recipients tied to Department of Homeland Security, Maryland, and NAICS 541330

Ellumen, Inc.

Silver Spring, MD

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

Systems Plus, Inc.

Rockville, MD

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

Leidos Innovations Corporation

Gaithersburg, MD

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

Connsci LLC

Gaithersburg, MD

Gaithersburg, MD | 33 awards | Top agency Department of Health and Human Services | NAICS 611420

Lockheed Martin Services, LLC

Gaithersburg, MD

Gaithersburg, MD | 5 awards | Top agency Department of Transportation | NAICS 541512

Booz Allen Hamilton Engineering Services, LLC

Annapolis Junction, MD

Annapolis Junction, MD | 11 awards | Top agency Department of Defense | NAICS 541330

Page 2 of 2Prev 1 2

State page

Loading state-level contractor and award paths