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​​​​BidBuy is an e-procurement system that improves procurement efficiency, reduces transaction costs, and increases information available to vendors and State agencies. BidBuy is the Procurement Bulletin for the Chief Procurement Office for General Services.


State of Illinois Internal Users - Email us at or call the State User BidBuy Helpdesk at 217-557-8992

Vendors - Email us at or call the Vendor Helpdesk at 866-455-2897

On the pages below, you will find information on how to use BidBuy.

BidBuy Resources for VENDORS​

BidBuy Resources for STATE AGENCIES