Sergey Brin vs Seo Jung-jin: who is richer?
Sergey Brin is richer, with a net worth of $218.1 billion versus Seo Jung-jin's $9.86 billion — a gap of $208.2 billion, or 22 times as much (as of November 7, 2026).

Sergey Brin
Source of wealth: Google
$218.1B
Made since you opened this page: $0.00
Seo Jung-jin
Source of wealth: Biotech
$9.86B
Made since you opened this page: $0.00
Side-by-side
| Sergey Brin | Seo Jung-jin | |
|---|---|---|
| Net worth | $218.1B | $9.86B |
| World rank | #4 | #360 |
| Makes per second | $1,584 | $54.53 |
| Makes per day | $136.9M | $4.71M |
| Today | +$1.58B | −$197.5M |
| Source of wealth | Biotech | |
| Age | 53 | 69 |
| Country | United States | South Korea |
Net worth by year
| Year | Sergey Brin | Seo Jung-jin |
|---|---|---|
| 2026 | $237B | $9.9B |
| 2025 | $138B | $7.1B |
| 2024 | $110B | $7.3B |
| 2023 | $76B | $5.6B |
| 2022 | $107B | $7B |
| 2021 | $89B | $14.2B |
| 2020 | $49.1B | $6.1B |
| 2019 | $49.8B | $8.1B |
| 2018 | $47.5B | $11.9B |
| 2017 | $39.8B | $2.2B |
| 2016 | $34.4B | $1.9B |
| 2015 | $29.2B | $1.2B |
Frequently asked questions
Who is richer, Sergey Brin or Seo Jung-jin?
Sergey Brin is richer, worth $218.1 billion compared with Seo Jung-jin's $9.86 billion. The difference is $208.2 billion.
Who makes more per second, Sergey Brin or Seo Jung-jin?
Sergey Brin makes more: about $1,584 per second versus $54.53. Per day that's $136.9M vs $4.71M.
How many times richer is Sergey Brin than Seo Jung-jin?
Sergey Brin has about 22 times Seo Jung-jin's net worth.