Elon Musk vs Denis O'Brien: who is richer?
Elon Musk is richer, with a net worth of $849.7 billion versus Denis O'Brien's $3.09 billion — a gap of $846.6 billion, or 275 times as much (as of November 7, 2026).
Elon Musk
Source of wealth: Tesla, SpaceX
$849.7B
Made since you opened this page: $0.00
Denis O'Brien
Source of wealth: Telecom
$3.09B
Made since you opened this page: $0.00
Side-by-side
| Elon Musk | Denis O'Brien | |
|---|---|---|
| Net worth | $849.7B | $3.09B |
| World rank | #1 | #1349 |
| Makes per second | $10,044 | $1.86 |
| Makes per day | $867.8M | $160,986 |
| Today | +$60.24B | −$105,683 |
| Source of wealth | Tesla, SpaceX | Telecom |
| Age | 55 | 68 |
| Country | United States | Ireland |
Net worth by year
| Year | Elon Musk | Denis O'Brien |
|---|---|---|
| 2026 | $839B | $3.1B |
| 2025 | $342B | $3B |
| 2024 | $195B | $2.8B |
| 2023 | $180B | $2.7B |
| 2022 | $219B | $3.8B |
| 2021 | $151B | $4.6B |
| 2020 | $24.6B | $2.9B |
| 2019 | $22.3B | $4B |
| 2018 | $19.9B | $4.6B |
| 2017 | $13.9B | $4.7B |
| 2016 | $10.7B | $5.7B |
| 2015 | $12B | $6.8B |
Frequently asked questions
Who is richer, Elon Musk or Denis O'Brien?
Elon Musk is richer, worth $849.7 billion compared with Denis O'Brien's $3.09 billion. The difference is $846.6 billion.
Who makes more per second, Elon Musk or Denis O'Brien?
Elon Musk makes more: about $10,044 per second versus $1.86. Per day that's $867.8M vs $160,986.
How many times richer is Elon Musk than Denis O'Brien?
Elon Musk has about 275 times Denis O'Brien's net worth.