Shortly after selling agricultural machine maker Miller St. Nazianz Inc., John W. Miller jumped into a riskier endeavor: start-up investing.

“I could have gone anywhere after selling the company, but I decided I wanted to stay and build more in Wisconsin,” said Miller, who sold Manitowoc County-based  Miller St. Nazianz in 2014. “I’m only 42, so I still have some interest in taking an informed gamble on things.”

Miller’s attitude, along with his appetite for start-up investing, is increasingly common in the state, particularly in the Milwaukee area. He is among a growing number of younger “angel” investors who are sorting through the state’s youngest companies so they can put money into those that appear to be the most promising.

Their names are new to much of the public. Adam Berger, Mark Grosskopf and Mia Moe don’t have the visibility of their more established counterparts. But with every investment, they’re becoming more known. Read the full story here.