Net Worth Comparison

Guillaume Pousaz vs Mark Zuckerberg

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

Guillaume Pousaz

Guillaume Pousaz

CEO, Fintech
Net Worth
$7.823B
+0.00% today
Mark Zuckerberg
Wealthier

Mark Zuckerberg

Net Worth
$207.68B
+$199.9B more than Guillaume
+0.40% today

Wealth at a Glance

Guillaume Pousaz$7.823B
Mark Zuckerberg$207.68B

Net worth gap: $199.9B — equivalent to 96% of Mark's total wealth.

Tale of the Tape

Guillaume Pousaz
Mark Zuckerberg
$7.823B
Net Worth
$207.68B
#469
Global Rank
#6
44
Age
41
SWITZERLAND
Country
UNITED STATES
Fintech
Source of Wealth
Facebook
Finance & Investments
Industry
Technology
HEC Lausanne (dropped out)
Education
Harvard University (dropped out)
Annual Salary
$0.0M

Net Worth History

YearGuillaumeMarkLeader
2022$7.2B$65BMark
2023$7.2B$170BMark
2024$7.8B$224.1BMark
2025$7.8B$222BMark
2026$7.823B$207.68BMark

Career Highlights

Guillaume Pousaz

  1. 2006
    Joined International Payments Consultants (IPC)
    Gained experience in global transactions.
  2. 2006
    Co-founded NetMerchant
    A US to Europe money transfer service.
  3. 2009
    Founded Opus Payments (Rebranded Checkout.com)
    Founded to solve the problem of online payment processing.
  4. 2019
    Raised $230M Series A
    The largest Series A funding round ever for a European fintech company at the time.
  5. 2022
    Raised $1B Series D
    Valuing the company at $40B.

Mark Zuckerberg

  1. 2004
    Founded Facebook
    Co-founded Facebook while at Harvard University.
  2. 2008
    Became a Billionaire
    Became a billionaire at age 23.
  3. 2012
    Facebook IPO
    Took Facebook public, making it one of the largest IPOs in history.
  4. 2021
    Meta Rebranding
    Facebook rebranded to Meta Platforms, Inc., focusing on the metaverse.

The Verdict: Mark Zuckerberg vs Guillaume Pousaz

As of May 2026, Mark Zuckerberg leads this comparison with a net worth of $207.68B, placing at #6 in the global rankings. Guillaume Pousaz follows at $7.823B — a gap of $199.9B.

The two leaders come from distinct industries — Finance & Investments for Guillaume Pousaz and Technology for Mark Zuckerberg. 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.

Guillaume Pousaz is 44 years old versus 41 for Mark Zuckerberg, a difference of 3 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.