In their annual ranking, “Fortune” magazine highlights disruptors, innovators, rebels and artists under 40. Its 2018 list of the most influential young people in business includes four YPO members.

In taking Stitch Fix public in November 2017, Katrina Lake became not only the sole woman to take a tech startup public, but one of the youngest female founders ever to lead a company into the public markets. Currently valued at more than USD3 billion, Stitch Fix has amassed 2.7 million active customers to its personalized online styling service.

No. 27: CEO Rosewood Hotel Group – Sonia Cheng

Bought by the conglomerate founded by her late grandfather, Rosewood may be a family business but the vision is all Sonia Cheng’s. Today, the hotel group claims 61 properties throughout the world and Cheng has 25 more in the works.

No. 36: Cofounder and CEO Sunrun – Lynn Jurich

Weathering the 2008 recession shortly after founding Sunrun, Lynn Jurich stayed the course and took the company public in 2015. This year, Sunrun took market share from SolarCity, owned by Elon Musk’s Tesla, to become the U.S. leader in residential solar, battery storage and solar energy services.

No. 38: Cofounder and Co-CEO ThirdLove – Heidi Zak

Along with her Co-CEO husband David Spector, Heidi Zak combined her retail and tech background to create ThirdLove, a fitcentric company helping its customers to buy and wear bras more comfortably. Its convenient direct-to-customer format has been a viral success yielding annualized revenue growth that has exceeded 450 percent for the past two years.