Fortune has just released its list of the 100 fastest growing US companies. To make the list, companies had to have revenue and market caps of at least 50 million and be publicly traded for at least three years. 4Kids Entertainment tops the list with 242 percent EPS growth. Readers can also check out Perennial Companies, the 15 companies that have made the list each of the three years of its existence, and 5 Stocks to Buy Now.