Joe Kiani vs Jeff Bezos
Real-time net worth, career, and company comparison — updated June 2026.
Wealth at a Glance
Net worth gap: $271.0B — equivalent to 100% of Jeff's total wealth.
Tale of the Tape
Career Highlights
Joe Kiani
- 1989Founded MasimoJoe Kiani founded Masimo, a medical technology company that revolutionized patient monitoring.
- 1995FDA Clearance for Masimo SETMasimo's Signal Extraction Technology (SET) pulse oximetry received FDA clearance.
- 2007Masimo Goes PublicMasimo became a publicly traded company on NASDAQ (MASI).
- 2021Appointed to PCASTAppointed by President Joe Biden to serve on the President's Council of Advisors on Science and Technology (PCAST).
- 2024Resigned as CEO of MasimoKiani resigned as CEO after losing a board seat.
Jeff Bezos
- 1994Founded AmazonEstablished Amazon.com as an online bookstore in Seattle, Washington.
- 1997Amazon IPOTook Amazon public, raising $54 million.
- 2000Founded Blue OriginFounded Blue Origin, an aerospace manufacturer and sub-orbital spaceflight services company.
- 2013Acquired The Washington PostPurchased The Washington Post for $250 million.
- 2021Stepped down as Amazon CEOTransitioned to the role of Executive Chairman of Amazon.
Net Worth History
| Year | Joe | Jeff | Leader |
|---|---|---|---|
| 2022 | — | $128.7B | — |
| 2023 | — | $111B | — |
| 2024 | $1.2B | $222.3B | Jeff |
| 2025 | $1.2B | $224B | Jeff |
| 2026 | $1.255B | $272.272B | Jeff |
The Verdict: Jeff Bezos vs Joe Kiani
As of June 2026, Jeff Bezos leads this comparison with a net worth of $272.272B, placing at #4 in the global rankings. Joe Kiani follows at $1.255B — a gap of $271.0B.
The two leaders come from distinct industries — Healthcare for Joe Kiani and Technology for Jeff Bezos. 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.
Jeff Bezos is 62 years old versus 61 for Joe Kiani, a difference of 1 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