Department of Defense NAICS 541330 contractors in Illinois

Engineering Services. Use this deeper state-buyer-industry page to see which visible contractors sit closest to this exact overlap in the public AwardRegistry layer.

Illinois + Department of Defense

Last updated: April 3, 2026

Visible recipients

Mapped obligations

$166,117,482

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

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.

$166,117,482