Sergey Brin vs William Koch: who is richer?
Sergey Brin is richer, with a net worth of $218.1 billion versus William Koch's $1.95 billion — a gap of $216.1 billion, or 112 times as much (as of November 7, 2026).
Sergey Brin
Source of wealth: Google
$218.1B
Made since you opened this page: $0.00
William Koch
Source of wealth: Oil, investments
$1.95B
Side-by-side
| Sergey Brin | William Koch | |
|---|---|---|
| Net worth | $218.1B | $1.95B |
| World rank | #4 | #2112 |
| Makes per second | $1,584 | −$0.97 |
| Makes per day | $136.9M | −$83,750 |
| Today | +$1.58B | $0 |
| Source of wealth | Oil, investments | |
| Age | 53 | 86 |
| Country | United States | United States |
Net worth by year
| Year | Sergey Brin | William Koch |
|---|---|---|
| 2026 | $237B | $2B |
| 2025 | $138B | $2B |
| 2024 | $110B | $2B |
| 2023 | $76B | $1.6B |
| 2022 | $107B | $1.6B |
| 2021 | $89B | $1.6B |
| 2020 | $49.1B | $1.5B |
| 2019 | $49.8B | $1.8B |
| 2018 | $47.5B | $1.7B |
| 2017 | $39.8B | $1.3B |
| 2016 | $34.4B | $1.9B |
| 2015 | $29.2B | $3B |
Frequently asked questions
Who is richer, Sergey Brin or William Koch?
Sergey Brin is richer, worth $218.1 billion compared with William Koch's $1.95 billion. The difference is $216.1 billion.
Who makes more per second, Sergey Brin or William Koch?
Sergey Brin makes more: about $1,584 per second versus −$0.97. Per day that's $136.9M vs −$83,750.
How many times richer is Sergey Brin than William Koch?
Sergey Brin has about 112 times William Koch's net worth.