Department of Transportation PSC Y1AA contractors in Illinois

CONSTRUCTION OF OFFICE BUILDINGS. Use this deeper state-buyer-PSC page to see which visible contractors sit closest to this exact overlap in the public AwardRegistry layer.

Illinois + Department of Transportation

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$173,696,214

Visible recipients tied to Department of Transportation, Illinois, and PSC Y1AA

Walsh Federal LLC

Chicago, IL

Walsh Federal LLC is a federal category business profile based in Chicago, IL. The current public data layer shows $406,413,501 in visible federal obligations across 169 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1BZ.

$173,696,214