6. Sara Blakely

Sara Blakely is another self-made billionaire who rightfully deserves a spot on this list. She went from selling fax machines door-to-door to starting her own brand from a mere $5000 investment. That brand is what we know as Spanx today, which sells women’s apparel, leggings, underwear, etc. Not only did she solve a serious women’s fashion issue, she also made a name for herself. The mother of 4 still runs the company to this day, which is pretty impressive!