7. Cargill-MacMillan (Estimated family net worth: $49 billion)
According to Forbes, Cargill-Macmillan family has the most billionaire members compared to any other family in the world. There are fourteen of them. Plus, there are dozens more millionaires within this America’s fourth richest family. So, it should come as no surprise that together they have $49 billion of estimated net worth.
Cargill Inc. is America’s largest private company. Their products and services range from bio-industrial, energy, agricultural, food and beverage, to pharmaceutical. That is a lot of income source. However, most of their business revenues, around $108 billion, come from agribusiness.
William W. Cargill started this business empire back in 1865. He founded a small storage company. And he made his own fortune as railroads expanded westward in United States.
As his son in law, John MacMillan, took over the business in 1909, the wealthy family became commonly known as Cargill-MacMillan.
The family has not run the company since 1995 when Whitney MacMillan stepped down from CEO position. But they still own 88% of the company’s shares and six of the family members still sit on the company’s board.
