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Purchasing Department

Ann Johns, Director of Purchasing

Melinda Macias, Buyer

Danielle Ciulla, Administrative Assistant

The Purchasing Department handles all procurement and contract management duties for Winnebago County. If interested in doing business with the County you can register with Vendor Self-Services. The Purchasing Department is open Monday through Friday from 8:00am-12:00pm & 1:00-5:00 p.m.



Vendor Self-Services:

Vendor Self Service will register you to do business with the County of Winnebago. As a vendor you will receive notification of County bidding opportunities that match your product(s) and/or service(s).

Click on "Resources" at the top of your screen for instructions on completing the registration process. Chrome is the best browser to use for Vendor Self Service. If you are returning to the site and have a user name and password, select "Log In" in the upper right corner. When your name appears at the top in the blue bar you have successfully logged into the site. 

If you have, any questions please email or call (815) 319-4380. 

Password Information:

Passwords expire every 180 days.
All passwords must meet the following criteria:

  • Must be at least 8 characters
  • Must contain 1 upper-case and 1 lower-case letter
  • Must contain at least 1 numeric characters

Forgot your password? Select "Login" in the top right corner, then select "Forgot your password?" A link to reset your password will be sent to your email address. If you are still unable to get into Self Service, call the Purchasing Department at (815) 319-4380. You MUST know your User Name in order for staff to reset your password.

Attachments: Please upload your most recent W-9 Form under Attachments. 

Enter the Commodity Codes If you want to received bidding opportunities you will need to indicate each of the Commodity Codes that best fit your business. We suggest you review the Commodity Code listing under "Resources" at the top of the screen before you begin your registration process.



Purchasing Department

404 Elm Street Room 202
Rockford, IL 61101

Phone: 815-319-4380

Fax: 815-319-4381

County Purchasing Ordinance

Transparency Reports

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