Ana Botín

Botín has wasted little time remaking Banco Santander in her own style since becoming Executive Chairman after her father’s death in September 2014. She has overhauled management at the bank—which, with $100.7 billion in revenues, ranked No. 67 on the 2015 Global 500—raised capital, and strengthened its financial condition. She is also putting new focus on customer experience at Santander, which is the second largest in Europe by market value. Profits for the company increased 33% in 2014. —Erika Fry