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Department of Defense NAICS 541990 and PSC R499 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541990 · PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$31,950,859,594

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC R499

Altamira Technologies CORP

Mc Lean, VA

Mc Lean, VA | 25 awards | Top agency Department of Defense | NAICS 541712

$101,905,524

Technical Assent, LLC

Arlington, VA

Arlington, VA | 35 awards | Top agency Department of Veterans Affairs | NAICS 541611

$9,457,063

Acclaim Technical Services, LLC

Reston, VA

Reston, VA | 13 awards | Top agency Department of Justice | NAICS 541930

$4,450,495

Leidos Management Systems Designers, Inc.

Gaithersburg, MD

Gaithersburg, MD | 9 awards | Top agency Department of the Treasury | NAICS 443120

$158,396,496

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