In 2016, Renee Wang sold her home in Bejing for $500,000 to fund her company, CastBox. Two months later, she landed her first investment. Just a half hour after hearing her pitch, she was offered one million dollars. By mid-2017, CastBox raised a total of $16 million in funding. CastBox's user numbers at that point? Seven million. Fast forward to today. Renee Wang of CastBox announces a $13.5 million Series B round of financing, bringing her funding total to a tidy $29 million. CastBox is now serving more than 15 million users.