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Net Worth Comparison

William Koch vs Elon Musk

Real-time net worth, career, and company comparison — updated June 2026.

William Koch

William Koch

CEO, Oil
Net Worth
$1.951B
+0.00% today
Elon Musk
Wealthier

Elon Musk

CEO, Tesla, Inc.
Net Worth
$807.656B
+$805.7B more than William
+1.18% today

Wealth at a Glance

William Koch$1.951B
Elon Musk$807.656B

Net worth gap: $805.7B — equivalent to 100% of Elon's total wealth.

Tale of the Tape

William Koch
Elon Musk
$1.951B
Net Worth
$807.656B
#2138
Global Rank
#1
85
Age
54
UNITED STATES
Country
UNITED STATES
Oil, investments
Source of Wealth
Tesla, SpaceX
Energy
Industry
Technology
Massachusetts Institute of Technology (BS, MS, PhD)
Education
University of Pennsylvania (BA, BS)

Career Highlights

William Koch

  1. 1980
    Attempted Takeover of Koch Industries
    William Koch attempted to take over Koch Industries but was fired from the company.
  2. 1983
    Sold Stake in Koch Industries
    Sold his stake in Koch Industries to his brothers Charles and David for $800 million.
  3. 1983
    Founded Oxbow Carbon LLC
    Founded Oxbow Carbon LLC, an energy development holding company.
  4. 1992
    America's Cup Victory
    Won the America's Cup as a competitive sailor.

Elon Musk

  1. 1995
    Co-founded Zip2
    Co-founded Zip2, an online city guide for newspapers.
  2. 1999
    Co-founded X.com
    Co-founded X.com, which later became PayPal.
  3. 2002
    Founded SpaceX
    Founded Space Exploration Technologies Corp. (SpaceX).
  4. 2004
    Became Chairman of Tesla
    Led the first funding round for Tesla and became its Chairman.
  5. 2008
    Became CEO of Tesla
    Became CEO of Tesla Motors.

Net Worth History

YearWilliamElonLeader
2022$2B$146BElon
2023$2B$235.5BElon
2024$2B$839.6BElon
2025$2B$839BElon
2026$1.951B$807.656BElon

The Verdict: Elon Musk vs William Koch

As of June 2026, Elon Musk leads this comparison with a net worth of $807.656B, placing at #1 in the global rankings. William Koch follows at $1.951B — a gap of $805.7B.

The two leaders come from distinct industries — Energy for William Koch and Technology for Elon Musk. Comparing them is therefore a comparison of different underlying asset types, growth rates, and risk profiles rather than a simple head-to-head within the same market.

William Koch is 85 years old versus 54 for Elon Musk, a difference of 31 years. Age context matters in wealth comparisons: a younger billionaire at the same net worth has had less time to accumulate — and in many cases represents a higher compound annual growth rate on their wealth.

Net worth figures are estimates calculated from public shareholding disclosures, stock price data, and reported asset values. See our full methodology.

Explore Full Profiles

William Koch
William Koch
Full profile → net worth, bio, career history
Elon Musk
Elon Musk
Full profile → net worth, bio, career history

Net worth estimates updated daily from public financial disclosures. Methodology · Report an error