New: use BidRover from Claude, ChatGPT or Cursor with our MCP server.connect your AI agent (MCP).Set it up
State guide

How to sell to Illinois government

Where Illinois posts bids, how to register as a vendor, which certifications help, and what is open right now. Every portal and rule links to its official source.

Facts checked

Where Illinois posts bids

State agencies post on BidBuy.[1] Some buyers, including the Tollway, universities and IDOT construction, post outside BidBuy.

Open bids right now

Step by step

  1. 01

    Register on BidBuy registration and the Illinois Procurement Gateway (IPG)

    Free. The IPG holds your disclosure forms and small-business set-aside eligibility and creates a starter BidBuy profile you finish in BidBuy. Businesses must be in good standing with the Illinois Secretary of State.[2]

  2. 02

    Have your Illinois Procurement Gateway registration

    Disclosures and set-aside eligibility for state contracts.[3]

  3. 03

    Choose your commodity codes

    Notifications are sent by the codes in your vendor profile. Pick every code that describes your work, and revisit them when you add a service.

  4. 04

    Get certified if you qualify

    Business Enterprise Program (BEP), through the Commission on Equity and Inclusion. For minority-, women- and disability-owned businesses; free. Veterans Business Program, through the Commission on Equity and Inclusion.[4][5]

  5. 05

    Watch local buyers too

    Cities, counties and authorities in Illinois post separately. BidRover reads 2 Illinois sources, listed below, in one search.

When a formal bid is required

The state's small purchase limit is $100,000 for supplies, services, construction and professional services.[6]

Tips

  • BEP certification moved from CMS to the Commission on Equity and Inclusion; older CMS links are stale.

Illinois sources BidRover reads

Questions

Where does Illinois post government bids?

State agencies post on BidBuy (https://www.bidbuy.illinois.gov/bso/). Many cities, counties and authorities in Illinois post on their own sites as well, so check the ones you want to sell to.

How do I register as a vendor with Illinois?

Register through BidBuy registration and the Illinois Procurement Gateway (IPG). Cost: Free. The IPG holds your disclosure forms and small-business set-aside eligibility and creates a starter BidBuy profile you finish in BidBuy. Businesses must be in good standing with the Illinois Secretary of State.

Does Illinois certify small or diverse businesses?

Business Enterprise Program (BEP) (Commission on Equity and Inclusion): For minority-, women- and disability-owned businesses; free. Veterans Business Program (Commission on Equity and Inclusion).

When does Illinois require a formal bid?

The state's small purchase limit is $100,000 for supplies, services, construction and professional services.

Sources

See every open bid in Illinois.

Browse free, no card. Team matches new bids to your business and emails them to you.