State + NAICS page

NAICS 541330 contractors in Illinois

Engineering Services. Use this state-scoped industry page to see which visible federal contractors carry the clearest footprint in this NAICS lane inside Illinois.

State: Illinois

Last updated: April 3, 2026

Visible recipients

Mapped obligations

$166,117,482

Buyer overlap

Top recipients

Visible recipients tied to NAICS 541330 in Illinois

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