17. Yvonne Bauer, Germany
What does a media empire comprising of 600 magazines, 400 digital projects, and 50 global radio and television networks have in common? It is owned by 40-year-old Yvonne Bauer. As the CEO of Bauer Media since 2010 when she inherited 85% from her father, Yvonne continues to steer the Germany-based company that has been run by five generations of her family.