Billy Parish

The co-founder and CEO of Mosaic, Billy Parish, has a long-history of being involved in environmentalism in a highly active capacity. In the early 2000s he helped found a youth-led clean energy advocacy group, and in 2005 he fasted in front of the White House for three days to help raise awareness of the 150,000 people who die each year due to the effects of climate change. It should be no surprise then that Parish would go on to have an illustrious career as an environmental entrepreneur. Since its founding in 2010, Mosaic has grown to become the largest financier of residential loans for solar systems in the U.S., raising more than $500 million in various funding rounds since 2012.

Location: Oakland

Age: 36

Twitter: @billyparish