Mark Zuckerberg vs Dennis Gillings: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus Dennis Gillings' $2.43 billion — a gap of $207.3 billion, or 86 times as much (as of November 7, 2026).
Mark Zuckerberg
Source of wealth: Facebook
$209.7B
Dennis Gillings
Source of wealth: Clinical trials
$2.43B
Made since you opened this page: $0.00
Side-by-side
| Mark Zuckerberg | Dennis Gillings | |
|---|---|---|
| Net worth | $209.7B | $2.43B |
| World rank | #5 | #1677 |
| Makes per second | −$124 | $6.45 |
| Makes per day | −$10.69M | $557,287 |
| Today | +$1.72B | +$14.04M |
| Source of wealth | Clinical trials | |
| Age | 42 | 82 |
| Country | United States | United Kingdom |
Net worth by year
| Year | Mark Zuckerberg | Dennis Gillings |
|---|---|---|
| 2026 | $222B | $2.2B |
| 2025 | $216B | $2.1B |
| 2024 | $177B | $2.4B |
| 2023 | $64.4B | $2.1B |
| 2022 | $67.3B | $2.1B |
| 2021 | $97B | $2B |
| 2020 | $54.7B | $1.4B |
| 2019 | $62.3B | $1.7B |
| 2018 | $71B | $1.2B |
| 2017 | $56B | — |
| 2016 | $44.6B | — |
| 2015 | $33.4B | — |
Frequently asked questions
Who is richer, Mark Zuckerberg or Dennis Gillings?
Mark Zuckerberg is richer, worth $209.7 billion compared with Dennis Gillings' $2.43 billion. The difference is $207.3 billion.
Who makes more per second, Mark Zuckerberg or Dennis Gillings?
Dennis Gillings makes more: about $6.45 per second versus −$124. Per day that's $557,287 vs −$10.69M.
How many times richer is Mark Zuckerberg than Dennis Gillings?
Mark Zuckerberg has about 86 times Dennis Gillings' net worth.