Estimated net worth: $150 million

At 39, Michael Robertson is one of the youngest San Diegans to ever make the list without the good fortune of having parents who built his business...

Take 1 minute to subscribe and you'll get this story immediately, plus:

Already a subscriber? Sign in

  • 52 weekly issues
  • Subscriber-only digital content every business day, plus full access to archives
  • Book of Lists — the most comprehensive business resource in San Diego
  • San Diego 500 — influential business leaders you need to know
Yours for only $129