Richest American families, ranked
The Walton family
Net worth: $169.7 billion
Source of wealth: Walmart
Sam and Bud Walton founded Walmart in 1962. Following its success, they founded Sam’s Club in 1983. Today, Walmart reports sales of $500 billion, making it the largest retailer by revenue in the world.
The Koch family
Net worth: $107 billion
Source of wealth: Koch Industries
Brothers Charles and David Koch expanded their father’s oil refinery firm into conglomerate Koch Industries after their other brothers, Frederick and William, left the business following a failed takeover. Today, Koch Industries generates roughly $100 billion in revenue annually.
The Mars family
Net worth: $72 billion
Source of wealth: Mars Inc.
Jacqueline and John Mars inherited a stake in the candy empire Mars Inc., which invented M&Ms, Milky Way, and Mars Bars, when their father passed away in 1999. Jacquelyn’s son, Stephen Badger, is the current chairman of Mars Inc., which brings in more than $35 billion in annual revenue.
The Cargill-MacMillan family
Net worth: $38.8 billion
Source of wealth: Cargill Inc.
William W. Cargill founded agribusiness giant Cargill Inc. in 1865. Today, 23 members of the Cargill-MacMillan family own 88% of the company, which generates $108 billion in annual revenues. Of this clan, 14 are billionaires. The family reportedly keeps 80% of Cargill Inc.’s net income inside the company for reinvestment annually.