To build a hugely successful solar power company, just start with a founding team that, combined, has 225 years of energy industry experience. Depcom is the brainchild of nine execs from sustainable energy companies, as well as coal and gas firms. The startup builds solar power plants for utility companies across America, using efficient panels that allow it to offer pricing on par with or cheaper than those of traditional energy sources. In 2017, it pulled in $219.6 million in revenue in just its fourth full year of existence. More secrets the Scottsdale, Arizona-based company’s fast success: All employees are given shares of the company, and a transparent rating system determines year-end bonuses.