General Services Administration NAICS 541715 and PSC R499 contractors in Illinois

Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology). SUPPORT- PROFESSIONAL: OTHER. Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.

Illinois · General Services Administration

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$7,570,890,372

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Top recipients

Visible recipients tied to General Services Administration, Illinois, NAICS 541715, and PSC R499

Hii Mission Technologies CORP

Willowbrook, IL

Hii Mission Technologies CORP is a federal category business profile based in Willowbrook, IL. The current public data layer shows $380,690,397 in visible federal obligations across 464 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC AZ12.

$7,570,890,372