Sergey Brin vs Thomas Siebel: who is richer?
Sergey Brin is richer, with a net worth of $218.1 billion versus Thomas Siebel's $4.57 billion — a gap of $213.5 billion, or 48 times as much (as of November 7, 2026).
Sergey Brin
Source of wealth: Google
$218.1B
Made since you opened this page: $0.00
Thomas Siebel
Source of wealth: Business software
$4.57B
Made since you opened this page: $0.00
Side-by-side
| Sergey Brin | Thomas Siebel | |
|---|---|---|
| Net worth | $218.1B | $4.57B |
| World rank | #4 | #935 |
| Makes per second | $1,584 | $9.25 |
| Makes per day | $136.9M | $799,592 |
| Today | +$1.58B | +$7.94M |
| Source of wealth | Business software | |
| Age | 53 | 73 |
| Country | United States | United States |
Net worth by year
| Year | Sergey Brin | Thomas Siebel |
|---|---|---|
| 2026 | $237B | $3.9B |
| 2025 | $138B | $4.1B |
| 2024 | $110B | $3.9B |
| 2023 | $76B | $3.5B |
| 2022 | $107B | $3.5B |
| 2021 | $89B | $4.9B |
| 2020 | $49.1B | $3.6B |
| 2019 | $49.8B | $2.9B |
| 2018 | $47.5B | $2.9B |
| 2017 | $39.8B | $2.5B |
| 2016 | $34.4B | $2.2B |
| 2015 | $29.2B | $2.3B |
Frequently asked questions
Who is richer, Sergey Brin or Thomas Siebel?
Sergey Brin is richer, worth $218.1 billion compared with Thomas Siebel's $4.57 billion. The difference is $213.5 billion.
Who makes more per second, Sergey Brin or Thomas Siebel?
Sergey Brin makes more: about $1,584 per second versus $9.25. Per day that's $136.9M vs $799,592.
How many times richer is Sergey Brin than Thomas Siebel?
Sergey Brin has about 48 times Thomas Siebel's net worth.