The Most Powerful Women in Banking

In an increasingly competitive financial services marketplace, tiny Citizens is thriving, thanks largely to tech innovations Castilla has pioneered and the loyalty built through Castilla's relentless promotion of the bank's customers and the broader Edmond community.

Under Chang, J.P. Morgan has been named the world's top global research firm for two years running.

"I had a vision of upping our client servicing game to give Citizens' commercial clients a best-in-class experience," Wyper said, "no matter how large or small their relationship with us."

A small gesture early in Helga Houston’s banking career has informed her approach to guiding younger bankers on sometimes-delicate matters.

City National Bank in Los Angeles has been growing rapidly since Royal Bank of Canada acquired it in late 2015, and now it's up to Kelly Coffey to keep the momentum going.