The Winners were chosen based on their education and training, career experience, industry leadership, community service and other factors.

Our annual Top 20 Under 40 is published in the first ENR Midwest edition of the year, but the time to nominate a candidate for 2017 is right now.

The 2016 ENR Mountain States Top 20 Under 40 winners are company presidents and CEOs, architects, engineers, constructors, transportation planners, consultants and project managers, but also sustainability experts, seismic-building specialists and technology whizzes.