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Billionaire Profile
William Koch
Global Rank
#2140

Image: Credit Line: AIP Emilio Segrè Visual Archives | CC BY-SA 4.0 | via Wikimedia Commons

William Koch

CEO, Oil
Palm Beach, Florida
Real-Time Net Worth
$1.95B
Estimated based on Oil stock value as of September 10, 2026
0% (24h)
Age
85
Source
Oil, investments
Industry
Energy
Citizenship
United States

Biography

William “Bill” Koch is an American billionaire businessman, sailor, and collector, primarily known for founding and leading Oxbow Carbon LLC, a global marketer of petroleum coke and sulfur products. Born on May 3, 1940, Koch earned degrees in chemical engineering from the Massachusetts Institute of Technology (MIT) and is also recognized for his 1992 America's Cup victory. His wealth stems from oil and investments, and he is known for his diverse collections and philanthropic endeavors.

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Data Updated
Sep 10, 2026
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Wealth Over Time

Net Worth History

YearNet Worth
2026$1.95B
2025$2.00B
2024$2.00B
2023$2.00B
2022$2.00B
2021$2.00B
2020$2.00B

In-Depth Profile

Early Life

William Ingraham Koch was born on May 3, 1940, in Wichita, Kansas. He is the son of Fred C. Koch, the founder of Koch Industries. Bill Koch attended Culver Military Academy and later graduated from the Massachusetts Institute of Technology (MIT) with bachelor's, master's, and doctoral degrees in chemical engineering.

Rise to Success

Koch began his career in the family business, Koch Industries. However, after an unsuccessful attempt to take over the company from his brother Charles in 1980, he was fired. In 1983, William and his brother Fred sold their stock in Koch Industries to their brothers Charles and David for $800 million. William then founded Oxbow Carbon LLC in 1983, which has grown to be a leading global marketer of refinery coproducts. His company, Oxbow, is also involved in mining and marketing energy and commodities such as coal and petroleum coke.

Key Business Strategies

Koch's strategy for Oxbow has been to leverage his experience in the energy sector, creating a global platform for sourcing and marketing petroleum coke and related products. Oxbow's success has been built on a combination of teamwork, technology, and talented employees. The company has also expanded internationally, opening offices in Rotterdam and Singapore.

Philanthropy

William Koch is involved in philanthropy, the arts, education, and the community. He is also known for his collection of art, fine wine, and Western memorabilia. Koch founded an innovative private high school (Oxbridge Academy).

Career Milestones

1980

Attempted Takeover of Koch Industries

William Koch attempted to take over Koch Industries but was fired from the company.

1983

Sold Stake in Koch Industries

Sold his stake in Koch Industries to his brothers Charles and David for $800 million.

1983

Founded Oxbow Carbon LLC

Founded Oxbow Carbon LLC, an energy development holding company.

1992

America's Cup Victory

Won the America's Cup as a competitive sailor.

Philanthropy & Social Impact

Medical Research

Focused Ultrasound Foundation

Undisclosed

Supports the Focused Ultrasound Foundation.

Education

Oxbridge Academy

Undisclosed

Founded an innovative private high school (Oxbridge Academy).

Controversies & Challenges

1983-2001

Koch Industries Lawsuit

Legal battles with brothers Charles and David over the value of his share in Koch Industries.

Billionaires Connected to William Koch

Peers in Energy

All Energy billionaires

Richest in United States

All billionaires from United States

Adjacent Global Ranks

Full global ranking

Frequently Asked Questions

What is William Koch's net worth in 2026?
As of 2026, William Koch's estimated net worth is $1.951 billion, ranking #2140 among the world's billionaires. The estimate is based on publicly available shareholding data and market prices, updated daily.
How did William Koch make their money?
William Koch's wealth primarily comes from Oil, investments, most notably through Oil.
Where is William Koch from?
William Koch is from United States.
How old is William Koch?
William Koch is 85 years old.

Sources & References

  1. William Koch — Forbes profile Forbes