NAICS 541330 and PSC D399 contractors

Engineering Services. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Cross-code contractor overlap.

NAICS 541330 + PSC D399

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$196,080,104,137

State overlap

Top recipients

Visible recipients in the NAICS 541330 and PSC D399 overlap

Mantech Advanced Systems International, Inc.

Herndon, VA

Herndon, VA | 683 awards | Top agency Department of Defense | NAICS 541330

$4,625,623,615

Chenega Federal Systems, LLC

Bethesda, MD

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

$321,576,663

Ecs Federal, LLC

Fairfax, VA

Fairfax, VA | 401 awards | Top agency Department of Defense | NAICS 541512

$1,298,414,601

Jacobs Technology Inc.

Huntsville, AL

Huntsville, AL | 5 awards | Top agency Department of Defense | NAICS 541511

$762,568,370

Caci Nss, LLC

Reston, VA

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

$3,878,461,540

Goldbelt Falcon LLC

Chesapeake, VA

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

$52,568,608

Icf Incorporated, L.l.c.

Reston, VA

Reston, VA | 1,306 awards | Top agency Department of Health and Human Services | NAICS 541611

$979,570,320

Techflow, Inc.

San Diego, CA

San Diego, CA | 35 awards | Top agency Department of Homeland Security | NAICS 811219

$151,702,665

Network Security Systems Plus, INC

Mc Lean, VA

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

$134,698,985

It Concepts, Inc.

Mclean, VA

Mclean, VA | 98 awards | Top agency Department of Veterans Affairs | NAICS 541512

$48,634,232

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