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Home/Illinois/Department of Defense/NAICS 541710/PSC R499

State + agency + NAICS + PSC page

Department of Defense NAICS 541710 and PSC R499 contractors in Illinois

Research and Development in the Physical, Engineering, and Life Sciences. SUPPORT- PROFESSIONAL: OTHER. Deepest cross-filter overlap.

Illinois · Department of Defense

Last updated: April 8, 2026

Visible recipients

1

Mapped obligations

$919,879,409

Cross-code depth

4 filters

Top recipients

Visible recipients tied to Department of Defense, Illinois, NAICS 541710, and PSC R499

Alion Science And Technology Corporation

Chicago, IL

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

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Department of Defense NAICS 541710 -- drop PSC filter
Department of Defense PSC R499 -- drop NAICS filter