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Rank 2104 of 3,368

William Koch net worth

William Koch's net worth is estimated at $2 billion as of 15 Oct 2026, according to Forbes Real-Time Billionaires. The fortune comes mainly from oil, investments.

Age
86
Self-made
No, inherited
City
Palm Beach
Source of wealth
Oil, investments

Latest estimate

$2.0B

As of 15 Oct 2026, Forbes Real-Time Billionaires

History
Energy and resources setting, the industry behind this fortune
Energy and resources, the industry behind this fortune. Illustration, not a photo of William Koch.

William's net worth over time

1 dated estimate since 2026

One dated estimate so far. The chart draws as soon as a second public estimate is recorded.

As ofNet worthSource
15 Oct 2026$2.0B Forbes Real-Time Billionaires

About William Koch

William Koch (United States) has 1 dated net worth estimate in the public record, the latest $2 billion as of 15 Oct 2026 from Forbes Real-Time Billionaires. The fortune is tied to oil, investments, which we classify under energy and resources. William was born in 1940. That places William at number 2,104 in the current ranking.

Sources

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

About William Koch, common questions

How much is William Koch worth?
William Koch's net worth is estimated at $2 billion as of 15 Oct 2026, according to Forbes Real-Time Billionaires. That places William at number 2104 in the BillionaireList ranking.

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