Government contracts for security services in Illinois

Security services contracts in Illinois typically cover armed and unarmed guard services at federal courthouses, X-ray and magnetometer screening, perimeter patrols at DOE sites, and access-control staffing at military installations. Federal posts in this category fall under NAICS 561612 (Security Guards and Patrol Services), and the bulk of the work flows to the U.S. Marshals Service, GSA Federal Protective Service, DoD, and the Department of Energy. Many guard contracts are SDVOSB set-asides and require a state-issued private-security license in the place of performance.

As of October 20, 2026, Illinois has 3 open security services contracts in our database, with 3 added in the last 30 days. Volume in smaller markets is lumpy: a single base or facility can drive a quarter of annual postings. The most active buyers are 1335.CLERK OF CRCT CRT OFF. OF CLERK (1 open posts) and DHS - Human Services (1), with the rest spread across other federal civilian agencies, DoD components, and state and local departments active in Illinois.

Beyond federal opportunities, much of the security services work in Illinois is posted through the Illinois Procurement Bulletin (BidBuy), with recurring buyers including the Illinois Department of Transportation, the University of Illinois system, and the Illinois Tollway. Illinois requires BEP (Business Enterprise Program) certification for minority-, women-, and veteran-owned firms to access targeted set-aside spend. ContractRadar pulls federal postings from SAM.gov alongside state and local feeds so a security-services firm doesn't have to monitor each portal manually.