Billionaire Profile
Charles Koch & family
Global Rank
#22

Image: Public domain | via Wikimedia Commons

Charles Koch & family

CEO, Koch Industries
US
Real-Time Net Worth
$71.4B
As of December 2025
Age
90
Source
Koch, Inc.
Industry
diversified
Citizenship
US

Biography

Charles de Ganahl Koch, born in 1935, is an American businessman, engineer, and philanthropist. As of May 2025, his estimated net worth is $71.4 billion. He has been the chairman and CEO of Koch Industries since 1967. Koch Industries, the second-largest private company in the U.S. by revenue, is a diversified conglomerate with interests in various industries. Koch's career at Koch Industries began in 1961, and under his leadership, the company has expanded significantly. He is married to Liz Koch since 1972 and has two children, Chase and Elizabeth. Koch is also involved in philanthropic efforts, supporting various causes and think tanks.

Wealth Over Time

In-Depth Profile

Early Life

Charles de Ganahl Koch was born on November 1, 1935, in Wichita, Kansas. He is one of four sons of Fred C. Koch, who founded Wood River Oil and Refining Company, later known as Koch Industries. Koch's grandfather was a Dutch immigrant who founded a newspaper in West Texas. He graduated from the Massachusetts Institute of Technology (MIT) with three degrees in engineering.

Rise to Success

Charles Koch began his career at the management consulting firm Arthur D. Little, Inc. in 1961. He joined his father's company, Rock Island Oil & Refining Company, later that year. In 1967, following his father's death, Charles became president of the company and later chairman and CEO. He renamed the firm Koch Industries in honor of his father. Under his leadership, Koch Industries has grown to be one of the largest privately held companies in the United States. Charles and his brother, David, bought out their other two brothers, Frederick and Bill, in 1983, solidifying their control.

Key Business Strategies

Koch Industries has employed a market-based management approach, emphasizing long-term value creation. The company has diversified its portfolio to include operations in petroleum, chemicals, energy, and various other sectors. Koch has been known to focus on long-term investments and growth, shielded from the pressures of public markets due to its private status.

Philanthropy

Charles Koch has contributed to a wide array of philanthropic causes, including criminal justice reform and educational initiatives. Along with the late David Koch, Charles has personally given over $2.4 billion to various causes. He supports libertarian think tanks, Republican Party candidates, and various charitable and cultural institutions.

Career Milestones

1961

Joined Koch Industries

Began working at Rock Island Oil & Refining Company, later known as Koch Industries.

1967

Became Chairman and CEO of Koch Industries

Took over the company after his father's death.

1979

Renamed company to Koch Industries

The company name changed to honor Fred Koch.

1983

Bought out his brothers

Charles and David Koch purchased shares from their brothers.

2023

Brought on first co-CEO

First ever co-CEO added to help with the company.

Philanthropy & Social Impact

Education and Research

Charles Koch Foundation

$XB

Supports education and public policy research.

Social Entrepreneurship

Stand Together

$XB

A philanthropic community that empowers people and organizations dedicated to improving lives.

Various Causes

Koch Family Foundations

$2.4B+

Charles Koch and the late David Koch have given to worthwhile causes, including cancer research, and the arts.

Business Philosophy & Leadership

Notable Quotes

""I don't like politics.""

Leadership Principles

Market-Based Management

A value system and framework that inspires a culture of principled entrepreneurship, which the company uses.

Controversies & Challenges

2012

Opposition to environmental regulations

Charles Koch has been criticized for funding organizations and politicians who oppose environmental regulations and climate change policies.