
After decades in oil-industry operations and dealmaking, Bruce Fleming is helping put existing refinery equipment to work on renewable fuels. In Great Falls, Montana, that means connecting chemical engineering, farm output and the price of a plane’s next tank.
Before Todd Borgmann became Calumet’s CEO, he sold its products, worked its trading business and ran its finances. Now he is putting that inside knowledge to work on a different question: how much of the company’s future can be built from what it already owns?

At ThermoAnalytics, Keith Johnson helped turn university research into software for cars and military vehicles. Building the company required a second kind of engineering: customers, colleagues and a future in Calumet.