Keiko Erikawa vs Elon Musk
Real-time net worth, career, and company comparison — updated June 2026.
Wealth at a Glance
Net worth gap: $806.6B — equivalent to 100% of Elon's total wealth.
Tale of the Tape
Career Highlights
Keiko Erikawa
- 1978Cofounded KoeiCo-founded Koei (now Koei Tecmo Holdings) with her husband, Yoichi Erikawa.
- 2009Merger with TecmoKoei merged with Tecmo to form Tecmo Koei Holdings (later renamed Koei Tecmo Holdings).
- 2021Appointed SoftBank DirectorAppointed as an independent director of SoftBank Group.
- 2025Chairman EmeritusTransitioned to Chairman Emeritus role at Koei Tecmo Holdings.
Elon Musk
- 1995Co-founded Zip2Co-founded Zip2, an online city guide for newspapers.
- 1999Co-founded X.comCo-founded X.com, which later became PayPal.
- 2002Founded SpaceXFounded Space Exploration Technologies Corp. (SpaceX).
- 2004Became Chairman of TeslaLed the first funding round for Tesla and became its Chairman.
- 2008Became CEO of TeslaBecame CEO of Tesla Motors.
Net Worth History
| Year | Keiko | Elon | Leader |
|---|---|---|---|
| 2022 | — | $146B | — |
| 2023 | — | $235.5B | — |
| 2024 | $1.2B | $839.6B | Elon |
| 2025 | $1.2B | $839B | Elon |
| 2026 | $1.066B | $807.656B | Elon |
The Verdict: Elon Musk vs Keiko Erikawa
As of June 2026, Elon Musk leads this comparison with a net worth of $807.656B, placing at #1 in the global rankings. Keiko Erikawa follows at $1.066B — a gap of $806.6B.
The two leaders come from distinct industries — Media & Entertainment for Keiko Erikawa 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.
Keiko Erikawa is 77 years old versus 54 for Elon Musk, a difference of 23 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.
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Net worth estimates updated daily from public financial disclosures. Methodology · Report an error