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7 founder estimates
Founders
Public net worth estimates for founders and founder-operators with source-backed ranges and caveats.
All people
Recently updated
Joseph Carlson
Low-Medium
A reasonable public-record estimate places Joseph Carlson’s net worth around $3.4M to $5.8M, with a wider plausible range of roughly $2.3M to $9.0M.
Updated 5/29/2026 · Finance YouTube creator and investing software founder
$3.4M - $5.8M
Bill Gates
Medium
Bill Gates is estimated to be worth about $100 billion to $106 billion as of May 20, 2026. The base case centers near Bloomberg’s current $103 billion estimate and is supported by large public stakes tied to Microsoft and Cascade Investment.
Updated 5/20/2026 · Technology founder / philanthropist
$100.0B - $106.0B
Marissa Mayer
Low-Medium
A defensible public-source range for Marissa Mayer’s net worth is about $0.9 billion to $1.6 billion, with low-medium confidence. Forbes listed her at $1.5 billion in 2026, but the underlying asset schedule is not public.
Updated 5/19/2026 · Technology executive, founder, investor, public-company director
$900.0M - $1.6B
Markus Alexej Persson
Medium
Markus “Notch” Persson’s net worth is best estimated at about $1.35B–$1.45B as of 2026-05-19, with a conservative floor near $1.2B and an aggressive case up to about $1.6B.
Updated 5/19/2026 · Video games / Minecraft / software entrepreneurship
$1.4B - $1.5B
Mark Zuckerberg
Medium
Mark Zuckerberg’s net worth is overwhelmingly tied to Meta Platforms stock. Meta’s 2026 proxy discloses 341.8M Class B shares beneficially controlled by Zuckerberg; at the access-date META price of $611.21, those shares are worth about $208.9B. After cross-checking Bloomberg and Forbes real-time billionaire estimates and adding minor visible real-estate signals, a base range of $209B–$218B is most supportable.
Updated 5/19/2026 · Technology / social media / public-company founder
$209.0B - $218.0B
Jeffrey P. Bezos
Medium-High
Estimated net worth: base case $275B–$288B, with a wider plausible range of $255B–$305B. The estimate is primarily driven by Bezos’ direct Amazon stake, valued at about $235.9B using the latest Form 4 share count and the AMZN market quote captured for this report.
Updated 5/18/2026 · Technology, e-commerce, aerospace, media, philanthropy
$275.0B - $288.0B
Elon Musk
Medium
Estimated net worth: USD 660B–700B base case, with a conservative range of USD 600B–640B and an aggressive range of USD 790B–850B.
Updated 5/17/2026 · Technology, automotive, aerospace, AI, social media
$660.0B - $700.0B
