Department of Defense NAICS 541330 and PSC AD24 contractors in Illinois

Engineering Services. R&D- DEFENSE OTHER: SERVICES (ENGINEERING DEVELOPMENT). 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 · Department of Defense

Last updated: April 3, 2026

Visible recipients

Mapped obligations

$221,992,265

Cross-code depth

4 filters

Top recipients

Visible recipients tied to Department of Defense, Illinois, NAICS 541330, and PSC AD24

Exp Federal Inc.

Chicago, IL

Exp Federal Inc. is a federal category business profile based in Chicago, IL. The current public data layer shows $33,712,210 in visible federal obligations across 62 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC N059.

$221,992,265