Department of Defense NAICS 541990 and PSC AD24 contractors

All Other Professional, Scientific, and Technical Services. R&D- DEFENSE OTHER: SERVICES (ENGINEERING DEVELOPMENT). Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541990 · PSC AD24

Last updated: April 9, 2026

Visible recipients

Mapped obligations

$976,421,989

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC AD24

Mantech Telecommunications And Information Systems Corporation

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$287,891,598

Noblis, Inc.

Reston, VA

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

$622,388,784

Aecom Energy & Construction, Inc.

Greenwood Village, CO

Greenwood Village, CO | 5 awards | Top agency Department of Defense | NAICS 237990

$20,724,764

Noblis Msd LLC

Philadelphia, PA

Philadelphia, PA | 481 awards | Top agency Department of Defense | NAICS 541330

$45,416,843

Agency profile

Loading buyer-level contractor and category paths