To Helena Valencia, Miami was home. She had grown up there. It was the place that had shaped her understanding of people and launched her into the wider world. In fact, her love of the city’s mingled cultures and vibrant local businesses was one of the things that had inspired her to cofound Unamano, now a world-renowned nonprofit supporting entrepreneurship in emerging markets.

A version of this article appeared in the May 2015 issue of Harvard Business Review.