William Koch

William Koch (#2129)

Global Rank #2129

Country Rank #717

Country United States

William Koch is listed among the world billionaires tracked by Iconic Billionaires.

$ 2 B
Oil, investments
United States
M
86 Years

Snapshot

Quick Facts

Global Rank #2,129

Country Rank #717

Net Worth $2.0B

Previous Worth $2.0B

Worth Change +$0.0B

Country United States

Industry Oil, investments

Age 86 Years

Gender M

Worth As Of May 4, 2026

Last Refreshed 31 Jul 2026, 12:00 AM

Residence Palm Beach, Florida

World Billionaires List United States Billionaires Oil, investments

Profile Data

Personal Stats

Age 86

Source Of Wealth Oil, investments

Self Made Score 3

Residence Palm Beach, Florida

Citizenship United States

Marital Status Married

Children 6

Education Doctorate, Massachusetts Institute of Technology; Bachelor of Arts/Science, Massachusetts Institute of Technology

Net Worth Change +$0.0B +0.0% from previous worth

Previous Net Worth $2.0B

Current Net Worth $2.0B

Worth as of May 4, 2026

About Me

William "Bill" Koch, brother of Koch Industries chairman and co-CEO Charles Koch, is the founder of petroleum coke and sulphur products company Oxbow Carbon Corp. The Kansas native formed his own company after selling his stake in Koch Industries to brothers Charles and David (d. 2019) for $470 million in 1983. He battled his brothers for two decades over the payout amount. The case was settled for an undisclosed amount in 2001. Bill's brother Frederick (d. 2020) also sold his stake in Koch Industries to Charles and David in 1983 and was involved in the ensuing legal battle. Koch Industries was started in 1940 by Bill's father, Fred Koch, who improved a method of refining heavy oil into gasoline.

Insights

Did You Know?

Bill and David were fraternal twins; the duo went to MIT together and played on the same basketball team.

The thrice married industrialist built a private Wild West-style town in Colorado, complete with saloons, a jail house and a train station.

Wealth Growth

Net Worth Growth Over Time

Tracking William Koch's net worth journey over the years, highlighting key growth phases and financial milestones.

Worth Trend Net Worth Growth

Period Change Worth Movement

Current Net Worth: $2.0B (May 4, 2026)