Source use and attribution

City of Chicago data

This site provides applications using data that has been modified for use from its original source, www.cityofchicago.org, the official website of the City of Chicago. The City of Chicago makes no claims as to the content, accuracy, timeliness, or completeness of any of the data provided at this site. The data provided at this site is subject to change at any time. It is understood that the data provided at this site is being used at one’s own risk.

City of Chicago data terms · Business Licenses dataset

A license record is a licensing signal. It does not establish an opening date, equipment, service requirements, an available contract or purchasing intent. Opening Ledger is provided by Jolli Apps; the City does not endorse this service.

Business websites and collection dates

Briefs cite the specific sources supporting business names, addresses, published contact routes and other included facts. Source links do not grant permission to copy a site’s photographs, branding or page content.

A first sample may use a source record dated within the past 30 days that was collected in our initial baseline. The brief identifies that initial collection and the later verification date. It is not presented as a new discovery after a customer’s request. Unknown opening dates and service needs remain unknown.