Skip to content
BillionaireList

Rank 28 of 3,368

Charles Koch net worth

Charles Koch's net worth is estimated at $76.9 billion as of 15 Oct 2026, according to Forbes Real-Time Billionaires. Charles Koch took over his father's oil business in 1967 and built it into Koch Industries, one of the largest private companies in the United States, and he is a prominent backer of libertarian causes.

Industry
Diversified
Age
90
Self-made
No, inherited
City
Wichita
Source of wealth
Koch Industries

Latest estimate

$76.9B

As of 15 Oct 2026, Forbes Real-Time Billionaires

+$26.4B

+52.4%

vs Jan 2019

History
Diversified setting, the industry behind this fortune
Diversified, the industry behind this fortune. Illustration, not a photo of Charles Koch.

Charles's net worth over time

7 dated estimates since 2013

$0 $21B $42B $62B $83B 2018 2020 2022 2024 2026 $48.3B, March 2017, Forbes $60.0B, March 2018, Forbes $50.5B, 2019, Forbes $76.9B, 15 Oct 2026, Forbes Real-Time Billionaires

Showing the latest 4 estimates. 3 earlier dated estimates are in the full history.

As ofNet worthSource
15 Oct 2026$76.9B Forbes Real-Time Billionaires
2019$50.5B Forbes
March 2018$60.0B Forbes
March 2017$48.3B Forbes

How Charles Koch grew the family company

Charles Koch did not start Koch Industries, but he is responsible for almost all of its growth. His father, Fred C. Koch, was a chemical engineer who developed an improved method for refining heavy oil into gasoline and founded a company that later became Rock Island Oil and Refining, based in Wichita, Kansas. Charles joined the business in 1961 and became chairman and chief executive after his father's death in 1967. The following year he renamed it Koch Industries.

At that point the company was mainly in oil gathering, refining and some cattle ranching. In 1969 it gained control of a refinery at Pine Bend in Minnesota, which became an important source of cash. Over the following decades Koch Industries expanded into pipelines, chemicals, fertilizers, commodities trading and ranching, usually by buying businesses and running them according to Koch's management philosophy.

The company has stayed private, and profits have mostly been reinvested rather than paid out. Koch's fortune comes from his large stake in the company, which he co owned for decades with his brother David until David's death in 2019. Because the business was inherited and then enlarged, his wealth is classified as inherited rather than self made.

Koch Industries businesses

Koch Industries operates through a group of subsidiaries, including:

  • Flint Hills Resources: refining and chemicals
  • Georgia Pacific: paper, tissue, packaging and building products, acquired in 2005
  • Invista: fibers and polymers, including the Lycra brand for a time, acquired from DuPont in 2004
  • Molex: electronic connectors and components, acquired in 2013
  • Guardian Industries: glass and building products, fully acquired in 2017
  • Koch Engineered Solutions, Koch Ag and Energy Solutions and Koch Minerals and Trading: engineering equipment, fertilizers and commodities

The family owns most of the company. In 1983, after a long dispute, Charles and David Koch bought out their brothers Frederick and Bill, and litigation between the brothers continued for years afterward before a settlement. Charles Koch remained chairman and chief executive, and his son Chase Koch took a senior role in the company, leading its venture investing arm, Koch Disruptive Technologies.

Koch is known for a management system he calls Market Based Management, which tries to apply economic principles such as property rights, incentives and price signals within the company.

Education and early career

Charles de Ganahl Koch was born in November 1935 in Wichita, Kansas, the second of four sons of Fred and Mary Koch. His father insisted the boys work on the family ranch and in other manual jobs during their childhood.

He studied at the Massachusetts Institute of Technology, earning a bachelor's degree in general engineering and two master's degrees, in nuclear engineering and in chemical engineering. After graduating he worked at the consulting firm Arthur D. Little in Boston before returning to Wichita to join his father's business.

In his early years at the company he read widely in economics and became attached to the ideas of the Austrian school, including Ludwig von Mises and Friedrich Hayek. Those ideas shaped both his political views and his approach to management. He has written several books setting out his philosophy, including The Science of Success, published in 2007, Good Profit, published in 2015, and Believe in People, published in 2020. He has led Koch Industries for well over half a century, making him one of the longest serving chief executives of any large American company.

Political influence and philanthropy

Koch has been one of the most influential funders of libertarian and free market causes in the United States. He co founded the Cato Institute, a libertarian think tank in Washington, in 1977. He has supported the Mercatus Center at George Mason University and a network of groups advocating lower taxes, less regulation and limited government, including Americans for Prosperity.

In recent years his giving has been organized under Stand Together, a philanthropic community he founded that funds programs in education, criminal justice reform, poverty reduction and free speech. Koch has said he wants his giving to empower people rather than direct them, and he has funded initiatives that support entrepreneurs and nonprofit groups working in local communities.

The Charles Koch Foundation provides grants to universities for research and teaching in economics and other fields, and these grants have drawn criticism from some academics who see them as attempts to shape curricula. Koch's political spending has made him a frequent target of criticism from opponents of his views, while his supporters credit him with backing causes such as reducing incarceration that have attracted support across party lines.

Key dates

  1. 1935 Born in Wichita, Kansas, the son of Fred C. Koch.
  2. 1961 Joins his father's oil company after working at Arthur D. Little.
  3. 1967 Becomes chairman and chief executive after his father's death.
  4. 1968 Renames the business Koch Industries.
  5. 1977 Co founds the Cato Institute.
  6. 1983 With David Koch, buys out his brothers Frederick and Bill.
  7. 2005 Koch Industries acquires Georgia Pacific.
  8. 2019 His brother and co owner David Koch dies.

Sources

The description is written by BillionaireList editors from public facts. How estimates are made: methodology.

About Charles Koch, common questions

How much is Charles Koch worth?
Charles Koch's net worth is estimated at $76.9 billion as of 15 Oct 2026, according to Forbes Real-Time Billionaires. That places Charles at number 28 in the BillionaireList ranking.
Is Charles Koch self made?
Not entirely. He took over the oil company founded by his father in 1967, but he grew it into Koch Industries through decades of acquisitions and expansion.
What does Koch Industries own?
Its businesses include Flint Hills Resources, Georgia Pacific, Invista, Molex, Guardian Industries and operations in fertilizers, engineering and commodity trading.
What causes does Charles Koch support?
He backs libertarian and free market organizations such as the Cato Institute and funds programs through Stand Together and the Charles Koch Foundation, including education and criminal justice reform.

Request a correction

Send a public source that shows a different fact. We confirm your email, check the source and update the profile. A removal request needs no source: the profile is hidden at once.