Brian's list itself is well-researched and interesting, worth time spent exploring it. To make the list, companies must meet the parameters that the company be based in the Chicago area, founded in the last ten years, relatively small, and growing — and awesome, to use Brian's adjective.
Brian notes that awareness itself is important to companies like this, and encourages readers to share the list. We do, too. Share the list via email, on Facebook, Twitter, or however you favor. We at Winston encourage you to follow Brian Luerssen on Medium as well, as this list is evidence he's a genuinely good curator and lively writer.
Brian's definitive list can be reviewed here.