Department of Homeland Security NAICS 541512 and PSC D399 contractors

Computer Systems Design Services. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541512 · PSC D399

Last updated: April 13, 2026

Visible recipients

Mapped obligations

$197,535,235,621

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541512 and PSC D399

Digital Management LLC

Mc Lean, VA

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

$2,072,877,078

Mantech Gray Hawk Systems, Inc.

Falls Church, VA

Falls Church, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$7,035,376

Mantech Security Technologies Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541512

$46,902,362

Bluewater Federal Solutions, Inc.

Arlington, VA

Arlington, VA | 32 awards | Top agency Department of Defense | NAICS 541512

$431,091,856

Patriot LLC

Columbia, MD

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

$299,097,549

Ellumen, Inc.

Silver Spring, MD

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

$270,087,589

Systems Plus, Inc.

Rockville, MD

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

$391,286,137

Ardent Management Consulting, LLC

Vienna, VA

Vienna, VA | 82 awards | Top agency Department of Homeland Security | NAICS 541511

$286,383,946

Harmonia Holdings Group, LLC

Mclean, VA

Mclean, VA | 80 awards | Top agency Department of Agriculture | NAICS 541511

$160,384,643

Sevatec LLC

Reston, VA

Reston, VA | 17 awards | Top agency Department of Homeland Security | NAICS 541519

$907,376,598

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