Kellee Co-Founded thatgamecompany in 2006 and is currently President. She received her BFA in Theatre from New York University, and her MFA in Interactive Media from the University of Southern California. It was at USC that she met co-founder Jenova Chen, and developed a vision for how video games could be different and made differently.

Kellee speaks around the world at video game, business, and entertainment conferences on the possibilities of video games, entrepreneurship, and better methods for video game development. In 2010 she became a TEDFellow, and was recognized as one of The Ten Most Influential Women in Games of the Decade. She is also a partner in IndieFund, which aims to support the growth of games as a medium by helping indie developers get financially independent and stay financially independent.