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BillionaireTracker

Michael Dell vs Denis O'Brien: who is richer?

Michael Dell is richer, with a net worth of $194.9 billion versus Denis O'Brien's $3.09 billion — a gap of $191.8 billion, or 63 times as much (as of November 7, 2026).

Michael Dell

Source of wealth: Dell Technologies

$194.9B

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

Michael DellDenis O'Brien
Net worth$194.9B$3.09B
World rank#6#1349
Makes per second$1,923$1.86
Makes per day$166.1M$160,991
Today+$3.78B−$105,683
Source of wealthDell TechnologiesTelecom
Age6168
CountryUnited StatesIreland

Net worth by year

YearMichael DellDenis O'Brien
2026$141B$3.1B
2025$97.7B$3B
2024$91B$2.8B
2023$50.1B$2.7B
2022$55.1B$3.8B
2021$45.1B$4.6B
2020$22.9B$2.9B
2019$34.3B$4B
2018$22.7B$4.6B
2017$20.4B$4.7B
2016$19.8B$5.7B
2015$19.2B$6.8B

Frequently asked questions

Who is richer, Michael Dell or Denis O'Brien?

Michael Dell is richer, worth $194.9 billion compared with Denis O'Brien's $3.09 billion. The difference is $191.8 billion.

Who makes more per second, Michael Dell or Denis O'Brien?

Michael Dell makes more: about $1,923 per second versus $1.86. Per day that's $166.1M vs $160,991.

How many times richer is Michael Dell than Denis O'Brien?

Michael Dell has about 63 times Denis O'Brien's net worth.