Department of Homeland Security NAICS 541990 and PSC R408 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT. Cross-code overlap under Department of Homeland Security.

Department of Homeland Security · NAICS 541990 · PSC R408

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$14,034,328,972

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541990 and PSC R408

Deloitte Consulting LLP

Arlington, VA

Arlington, VA | 1,829 awards | Top agency Department of Defense | NAICS 541512

$7,224,308,120

Alion Science And Technology Corporation

Chicago, IL

Chicago, IL | 5 awards | Top agency Department of Defense | NAICS 541710

$136,762,259

Modern Technology Solutions, Inc.

Alexandria, VA

Alexandria, VA | 285 awards | Top agency General Services Administration | NAICS 541712

$171,392,603

Amentum National Security Programs, INC

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Department of Defense | NAICS 541990

$220,910,943

Systems Planning And Analysis, Inc.

Alexandria, VA

Alexandria, VA | 238 awards | Top agency Department of Defense | NAICS 541330

$640,503,544

Noblis, Inc.

Reston, VA

Reston, VA | 372 awards | Top agency Department of Transportation | NAICS 541330

$770,200,138

Credence Management Solutions Limited Liability Company

Mclean, VA

Mclean, VA | 222 awards | Top agency Department of Defense | NAICS 541330

$371,546,801

Govcio, LLC

Fairfax, VA

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

$160,592,928

Guidehouse LLP

Mc Lean, VA

Mc Lean, VA | 134 awards | Top agency Department of State | NAICS 541611

$1,419,972,617

Asrc Federal Field Services, LLC

Beltsville, MD

Beltsville, MD | 207 awards | Top agency Department of Homeland Security | NAICS 561210

$29,248,977

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