Age when they started these companies: Michael Dell, Dell: 18 Mark Zuckerberg, Facebook: 19 Jim Casey, UPS: 19 Bill Gates, Microsoft: 19 Steve Jobs, Apple: 21 Thomas Burberry, Burberry: 21 Walt Disney, Disney: 22 Arthur Davidson, Harley-Davidson: 22 Paul Allen, Microsoft: 22 Gerard Heineken, Heineken: 23 Whitney Wolfe, Bumble: 25 Larry Page, Google: 25 William Hewlett, HP: 25 Richard Schulze, Best Buy: 25 Sergey Brin, Google: 25 Akio Morita, Sony: 25 Phil Knight, Nike: 26 Steve Wozniak, Apple: 26 David Packard, HP: 26 Sara Blakely, Spanx: 27 John Mackey, Whole Foods: 27 Fred Smith, FedEx: 27 Steve Case, AOL: 27 Pierre Omidyar, eBay: 28 Sandra Lerner, Cisco: 28 Katrina Lake, Stitch Fix: 28 Eugene Schueller, L’Oréal: 28 Charles Walgreen, Walgreens: 28 Charles Rolls, Rolls Royce: 29 Dee Hock, Visa: 29 Elon Musk, SpaceX: 30 Jeff Bezos, Amazon: 30 Erling Persson, H&M: 30 Jensen Huang, Nvidia: 30 Fusajiro Yamauchi, Nintendo: 30 Chester Carlson, Xerox: 31 Scott Cook, Intuit: 31 Leonard Bosack, Cisco: 31 Wernervon Siemens, Siemens: 31 Robin Li, Baidu: 32 Oprah Winfrey, Harpo: 32 Armand Peugeot, Peugeot: 32 Travis Kalanick, Uber: 32 Jerry Sanders, AMD: 32 James Gamble, P&G: 33 Larry Ellison, Oracle: 33 Jack Ma, Alibaba: 34 William Procter, P&G: 35 William Boeing, Boeing: 35 Marc Benioff, Salesforce: 35 Rowland Macy, Macy’s: 36 J.C. Jacobsen, Carlsberg: 36 Reid Hoffman, Linkedin: 36 Reed Hastings, Netflix: 36 Namihei Odaira, Hitachi: 36 Doris Fisher, The Gap: 37 Milton Hershey, Hershey: 37 Hugo Boss, Hugo Boss: 38 Masaru Ibuka, Sony: 38 Tory Burch, Tory Burch: 38 Wayne Hughes, Public Storage: 38 Rich Barton, Zillow: 38 Henry Ford, Ford: 39 Cher Wang, HTC: 39 Gordon Moore, Intel: 39 Vera Wang, Vera Wang: 40 Jeffrey Brotman, Costco: 40 Gustaf Larson, Volvo: 40 Robert Noyce, Intel: 41 Christian Dior, Christian Dior: 41 Asa Candler, Coca-Cola: 41 Eric Yuan, Zoom: 41 Chip Wilson, Lululemon: 42 Soichiro Hondo, Honda: 42 Jerry Baldwin, Starbucks: 42 Robin Chase, Zipcar: 42 Diane Greene, VMware: 43 Charlie Ergen, Dish Network: 43 Charles Geschke, Adobe: 43 Ralph Roberts, Comcast: 43 Macon Brock Jr., Dollar Tree: 43 Sam Walton, Walmart: 44 Jim Kimsey, AOL: 44 Thomas Edison, GE: 45 Jim Sinegal, Costco: 47 Adi Dassler, Adidas: 48 Marcus Goldman, Goldman Sachs: 48 Tony Ryan, Ryanair: 49 Leo Goodwin, Geico: 50 Bernie Marcus, Home Depot: 50 Harold Stanley, Morgan Stanley: 50 Gordon Bowker, Starbucks: 51 Gary Burrell, Garmin: 51 Chung Ju-Yung, Hyundai: 51 Ray Kroc, McDonald’s System: 52 Joseph Campbell, Campbell Soup: 52 Henri Nestlé, Nestlé: 52 Yoshisuke Aikawa, Nissan: 53 Bill Porter, E*Trade: 54 Sheldon Adelson, Las Vegas Sands: 55 Arianna Huffington, Huffington Post: 55 Ferdinand Porsche, Porsche: 56 Kawasaki Shōzō, Kawasaki: 59 Charles Flint, IBM: 61 Colonel Sanders, KFC: 62 Dave Duffield, Workday: 65 Lisa Gable, Strap-Mate: 70