Mark Zuckerberg vs John Catsimatidis: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus John Catsimatidis' $6.24 billion — a gap of $203.5 billion, or 34 times as much (as of November 7, 2026).
Mark Zuckerberg
Source of wealth: Facebook
$209.7B
John Catsimatidis
Source of wealth: Oil, real estate
$6.24B
Made since you opened this page: $0.00
Side-by-side
| Mark Zuckerberg | John Catsimatidis | |
|---|---|---|
| Net worth | $209.7B | $6.24B |
| World rank | #5 | #668 |
| Makes per second | −$124 | $34.40 |
| Makes per day | −$10.69M | $2.97M |
| Today | +$1.72B | $0 |
| Source of wealth | Oil, real estate | |
| Age | 42 | 78 |
| Country | United States | United States |
Net worth by year
| Year | Mark Zuckerberg | John Catsimatidis |
|---|---|---|
| 2026 | $222B | $4.8B |
| 2025 | $216B | $4.5B |
| 2024 | $177B | $4.3B |
| 2023 | $64.4B | $4.1B |
| 2022 | $67.3B | $3.7B |
| 2021 | $97B | $2.8B |
| 2020 | $54.7B | $3.3B |
| 2019 | $62.3B | $3.1B |
| 2018 | $71B | $3.1B |
| 2017 | $56B | $3.3B |
| 2016 | $44.6B | $3.4B |
| 2015 | $33.4B | $3.1B |
Frequently asked questions
Who is richer, Mark Zuckerberg or John Catsimatidis?
Mark Zuckerberg is richer, worth $209.7 billion compared with John Catsimatidis' $6.24 billion. The difference is $203.5 billion.
Who makes more per second, Mark Zuckerberg or John Catsimatidis?
John Catsimatidis makes more: about $34.40 per second versus −$124. Per day that's $2.97M vs −$10.69M.
How many times richer is Mark Zuckerberg than John Catsimatidis?
Mark Zuckerberg has about 34 times John Catsimatidis' net worth.