Biggest Private Companies by Valuation
This is a list of the biggest private companies by valuation. It includes companies with valuations available on secondary markets based on completed funding rounds in the last 3 years.
Companies
571
In our database
Total Valuation
$6.3T
Latest round
Total Revenue
$434.7B
Latest estimates
4 Companies
| Rank | |||||||
|---|---|---|---|---|---|---|---|
| 51 |  Helion Energy | $15.5B | n/a | -7.32% | United States | ||
| 250 |  TAE Technologies | $2.9B | n/a | -5.72% | United States | ||
| 253 |  Proxima Fusion | $2.7B | n/a | +2.56% | Germany | ||
| 363 |  Type One Energy | $1.47B | n/a | – | – | United States |
United States
Germany