Zachary Gordan

Zachary Gordan got his start in the eyewear business by peddling diffraction glasses, which amplify lights, to concertgoers as a college student. In 2014, he cofounded DIFF Eyewear, which sells brightly colored, inexpensive sunglasses. His shades are now sold at Nordstrom, Dillard's and Anthropologie. The company, which has avoided taking any outside funding, has more than one million customers and donates a pair of glasses for every one sold.