Department of Defense NAICS 541990 contractors

All Other Professional, Scientific, and Technical Services. Contractors in this NAICS lane under Department of Defense.

Agency: Department of Defense

Last updated: April 19, 2026

Visible recipients

143

Mapped obligations

$21,850,205,145

Visible recipients tied to Department of Defense and NAICS 541990

Serco Management Services, Inc.

Reston, VA

Reston, VA | 5 awards | Top agency Department of Transportation | NAICS 488111

$668,528

Sos International LLC

Reston, VA

Reston, VA | 138 awards | Top agency Department of Defense | NAICS 561210

$123,598,085

Guidehouse LLP

Mc Lean, VA

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

$441,292,503

Asrc Federal Technology Solutions, LLC

Reston, VA

Reston, VA | 144 awards | Top agency Department of Defense | NAICS 541611

$31,958,000

Siemens Government Technologies INC

Arlington, VA

Arlington, VA | 227 awards | Top agency Department of Defense | NAICS 541512

$535,381,114

Asrc Federal Field Services, LLC

Beltsville, MD

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

$8,392,024

Axient LLC

Arlington, VA

Arlington, VA | 83 awards | Top agency Department of Defense | NAICS 541330

$11,452,870

Sparksoft Corporation

Columbia, MD

Columbia, MD | 52 awards | Top agency Department of Health and Human Services | NAICS 541512

$9,527,032

Planned Systems International INC

Columbia, MD

Columbia, MD | 64 awards | Top agency Department of Defense | NAICS 541519

$74,254,619

Macaulay-brown, Inc.

Dayton, OH

Dayton, OH | 5 awards | Top agency General Services Administration | NAICS 541511

$968,051

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