340. C. Dean Metropoulos
$2.4 billion Self-made Score: * Source: investments age: 71 residence: palm beach, fla. m.b.a., Babson College ’68
Metropoulos’ latest success has been reviving Twinkie maker Hostess Brands, which went public in November 2016. The Greek-born investor, who left his home country at age 10, has performed similar feats with brands like Chef Boyardee, Pam cooking spray and Bumble Bee tuna.