FRED SMITH

$3.8

BILLION  SELF-MADE SCORE: ( SOURCE: FEDEX AGE: 75 RESIDENCE: MEMPHIS PHILANTHROPY SCORE: N.A.

FedEx is moving into smart sensors that’ll help to better track packages. Smith (pictured in a July 1980 photo)

is still CEO and chairman of the package-delivery company and owns over 7% of it. Smith has come a long way. He overcame a rare bone disease as a child and learned to fly at 15. Smith hatched the idea for FedEx as part of a term paper at Yale in 1965.