Doing Business with Lake County

Lake County purchases a wide variety of goods and services, and seeks qualified suppliers to provide quality goods and services economically. All purchases are made in accordance with the Lake County Purchasing Ordinance.  Formal bids for purchases of goods and services more than $30,000 are posted to this website and advertised in The News-Sun.

More Information about Lake County Purchasing process:

• Purchasing Brochure
• Frequently Asked Questions

Buy Local Program

Under this new initiative, Lake County departments will seek out local vendors for purchases under the legal bid limit of $30,000, while also considering other factors such as price, quality, terms, and service delivery. Lake County will strive to ensure that local businesses have the opportunity to do business with the county, while also continuing to be good stewards of tax dollars and maintaining compliance with the law. Learn more.

Register Your Company

View Lake County's Commodity Lists and register with Lake County to receive notifications of  bids, Request for Proposals (RFP), and other solicitations. This service will notify you by e-mail when a bid or RFP is available in your area(s) of interest.

More information:

• Vendor Registration/Login – To register or update your registration

Existing suppliers can update their payment address and contact information by calling Lake County Accounts Payable at 847-377-2650, or emailing AP@lakecountyil.gov.

Electronic Payment Program

Lake County is enhancing our payment process by offering payments electronically to our suppliers.  The electronic payment program is designed for those suppliers who want to avoid receiving a payment by check. Enrollment in the electronic payment program is voluntary, but we welcome your participation.  Find out more about the electronic payment program

Job Order Contracting (JOC)

Lake County utilizes Job Order Contracting as a method to procure select construction and renovation projects involving demolition, electrical work, HVAC, carpentry, concrete, painting, plumbing and other trade work.