4. Koch (Estimated family net worth: $82 billion)
Koch Industries is America’s second largest private company after Cargill Inc. which we discussed earlier on this list. But in terms of estimated net worth, the Koch family leads with $82 billion. Perhaps it is because the Koch family chose the right industry, oil and gasoline.
It all started back in the 1920s when Fred C. Koch developed a new method for the refinement of heavy crude oil into gasoline. And it was groundbreaking.
Today, the Koch Industries runs a large variety of business. It ranges from food, shelter, clothing, to transportation, and of course the one they started with, fuel. In total, the company is producing sixteen types of goods. One of them applies one of the world-changing technologies, enMotion towel dispenser with motion sensor.
The Koch brothers, who inherit the company from their father, Fred, are also known for their political activism. As stated in their official website, they are unapologetic advocates for the principles of a free and open society.
