4. Venus Williams
She currently has three stores open in the D.C.-Maryland market and plans to open two more."My goal is to help inspire our nation's youth to become more active and to make better dietary choices. As a recognized healthy, active lifestyle brand that offers simple menu solutions for eating right while engaging in healthy activities, Jamba Juice is a perfect fit to help me in that endeavor," Williams said last year. In her role as the company's spokeswoman, Williams represents the brand in key advertising and marketing campaigns and through personal appearances, and digital and social media activities, Jamba Juice says. Last month, Jamba Juice partnered with ESPN commentator and former NBA star LaPhonso Ellis. Through his franchise company, Blended Blessings, he owns two Jamba Juice locations in Indiana. Ellis plans to open four additional Jamba Juice stores in and around Indianapolis over the next four years.