As Founders of She's the First, Christen Brandt and Tammy Tibbetts built a wildly successful girls' rights nonprofit, from the ground up over the past decade. STF teams up with local organizations around the globe and directly impacts more than 11,000 girls. Tammy and Christen's work is supported by Michelle Obama, the United Nations, Diane von Furstenberg, major brands, 200+ campus chapters, and hundreds of thousands of everyday changemakers worldwide. They live in New York City.