Elon Musk, 52

1

Carter Gregory, 30

2

Kevin O'Leary, 69

3

Pierre Omidyar, 56

4

Richard Branson, 73

5

Austin Kevitch, 32

6

Edouard Michelin (1859-1940)

7

David Karp, 37

8

Nelson Peltz, 81

9