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Net Worth Comparison

Thomas Duff vs Elon Musk

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

Thomas Duff

Thomas Duff

CEO, Tires
Net Worth
$4.455B
+0.00% today
Elon Musk
Wealthier

Elon Musk

CEO, Tesla, Inc.
Net Worth
$807.656B
+$803.2B more than Thomas
+1.18% today

Wealth at a Glance

Thomas Duff$4.455B
Elon Musk$807.656B

Net worth gap: $803.2B — equivalent to 99% of Elon's total wealth.

Tale of the Tape

Thomas Duff
Elon Musk
$4.455B
Net Worth
$807.656B
#950
Global Rank
#1
69
Age
54
UNITED STATES
Country
UNITED STATES
Tires, diversified
Source of Wealth
Tesla, SpaceX
Diversified
Industry
Technology
University of Southern Mississippi (Bachelor's degree)
Education
University of Pennsylvania (BA, BS)

Net Worth History

YearThomasElonLeader
2022—$146B—
2023—$235.5B—
2024$4.5B$839.6BElon
2025$4.5B$839BElon
2026$4.455B$807.656BElon

Career Highlights

Thomas Duff

  1. 1979
    Graduated
    Earned a bachelor's degree in business administration from the University of Southern Mississippi.
  2. 1983
    Took over Southern Tire Mart
    Took over the family business, Southern Tire Mart, with his brother James.
  3. 2003
    Reacquired Southern Tire Mart
    Bought back Southern Tire Mart and rebranded it.
  4. 2007
    Cofounded Duff Capital Investors
    Co-founded Duff Capital Investors with his brother James.

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.

The Verdict: Elon Musk vs Thomas Duff

As of May 2026, Elon Musk leads this comparison with a net worth of $807.656B, placing at #1 in the global rankings. Thomas Duff follows at $4.455B — a gap of $803.2B.

The two leaders come from distinct industries — Diversified for Thomas Duff 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.

Thomas Duff is 69 years old versus 54 for Elon Musk, a difference of 15 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

Thomas Duff
Thomas Duff
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