Department of Homeland Security NAICS 541511 and PSC R499 contractors

Custom Computer Programming Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541511 · PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$37,725,703,345

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541511 and PSC R499

Sev1tech, LLC

Woodbridge, VA

Woodbridge, VA | 225 awards | Top agency Department of Defense | NAICS 541712

$167,233,528

Guidehouse Digital LLC

Mc Lean, VA

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

$555,915,835

Reli Group INC

Windsor Mill, MD

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

$183,993,520

Alpha Omega Integration LLC

Vienna, VA

Vienna, VA | 93 awards | Top agency Department of Homeland Security | NAICS 541512

$120,434,705

Softek Feditc LLC

Piscataway, NJ

Piscataway, NJ | 5 awards | Top agency Department of Homeland Security | NAICS 541511

$63,187,444

Procentrix, LLC

Herndon, VA

Herndon, VA | 71 awards | Top agency Securities and Exchange Commission | NAICS 541519

$65,195,842

Compqsoft, Inc.

Leesburg, VA

Leesburg, VA | 73 awards | Top agency Department of Defense | NAICS 541519

$97,207,860

Sehlke Consulting LLC

Vienna, VA

Vienna, VA | 79 awards | Top agency General Services Administration | NAICS 541511

$349,151,992

Ntt Data Federal Services, Inc.

Herndon, VA

Herndon, VA | 123 awards | Top agency Department of Justice | NAICS 541511

$1,657,052,477

Chenega It Enterprise Services, LLC

Lorton, VA

Lorton, VA | 56 awards | Top agency Department of Defense | NAICS 541330

$76,452,936

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