No. 36: Stryker family, Kalamazoo, $7.2 billion — The family fortune comes from Stryker Corp., the medical device company founded in 1941. No. 57: Van Andel family, Ada,. Richard DeVos cofounded direct-selling giant Amway. He died in September 2018. He and his high school friend Jay Van Andel (d. 2004) started Amway (short for "American. Jay: formed the Van Andel Institute for cancer research, education. For billionaires with publicly traded fortunes, net worths were calculated using share prices and exchange rates from...
Jay: formed the Van Andel Institute for cancer research, education. For billionaires with publicly traded fortunes, net worths were calculated using share prices and exchange rates from...
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