Department of Homeland Security NAICS 541519 and PSC D399 contractors

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

Department of Homeland Security · NAICS 541519 · PSC D399

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$86,269,481,410

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541519 and PSC D399

Caci Nss, LLC

Reston, VA

Reston, VA | 109 awards | Top agency Department of Defense | NAICS 541519

$4,088,658,614

Goldbelt Falcon LLC

Chesapeake, VA

Chesapeake, VA | 20 awards | Top agency Department of Defense | NAICS 811219

$73,894,039

Immixgroup, INC

Mc Lean, VA

Mc Lean, VA | 5 awards | Top agency Department of Defense | NAICS 541519

$243,748,082

Network Security Systems Plus, INC

Mc Lean, VA

Mc Lean, VA | 6 awards | Top agency Department of Defense | NAICS 541512

$59,767,086

Govcio, LLC

Fairfax, VA

Fairfax, VA | 94 awards | Top agency Department of Veterans Affairs | NAICS 541512

$557,387,597

Softrams LLC

Arlington, VA

Arlington, VA | 60 awards | Top agency Department of Health and Human Services | NAICS 541511

$94,828,747

Mantech Information Systems & Technology Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Justice | NAICS 541611

$83,968,640

Guidehouse Digital LLC

Mc Lean, VA

Mc Lean, VA | 389 awards | Top agency Department of Homeland Security | NAICS 541512

$488,890,435

Rei Systems, Inc.

Chantilly, VA

Chantilly, VA | 168 awards | Top agency Department of Health and Human Services | NAICS 541519

$892,485,540

Aoc Connect, LLC

Ashburn, VA

Ashburn, VA | 241 awards | Top agency Department of Defense | NAICS 517110

$61,357,004

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