IL
Federal Contractors in Illinois
Argonne National Laboratory and Fermilab drive federal science contracting, while Rock Island Arsenal remains one of the Army's few government-owned manufacturing arsenals. Naval Station Great Lakes is the Navy's only boot camp.
Federal spending
$9–12B annual
SBA district office
Chicago, IL
Open opportunities in Illinois
Updated August 24, 2026834active solicitations
Most active buyers
- Department of Defense437
- Department of Energy139
- Department of Veterans Affairs124
- Department of Justice55
- Department of Agriculture31
Most common set-asides
- Unrestricted223
- Total Small Business Set-Aside (FAR 19.5)220
- No Set aside used194
- Small Business Set Aside - Total104
- Service-Disabled Veteran-Owned Small Business Set Aside73
Most active NAICS codes
- 23622095
- 33451631
- 31199929
- 56121022
- 56173021
Counts reflect active contract opportunities ingested from SAM.gov and refresh daily. Figures move as solicitations are posted, amended, and closed.
Top buying agencies in Illinois
- Department of Defense
- Department of Energy
- Department of Veterans Affairs
Top industries
- Scientific R&D (541715)
- Ordnance and armaments
- Healthcare services
Resources for Illinois small contractors
- Find your APEX Accelerator (formerly PTAC) — free counseling for federal contracting.
- SAM.gov registration walkthrough
- Which federal set-asides you qualify for