The Koch dynasty refers to a prominent family in the United States known for their significant influence in business and politics. The family is best known for founding Koch Industries, one of the largest privately held companies in the country, which operates in various sectors, including oil, chemicals, and consumer products. The dynasty is often associated with Charles Koch and David Koch, who played key roles in expanding the family's business and political activities. They are known for their support of libertarian causes and funding various political campaigns through their network, often referred to as the Koch network.