Funding round

Helion Growth
Reported as "Growth Equity"
Helion, which works in fusion energy research and development in Everett, raised $35M in a Growth round announced on 1 Sep 2023. 1 firm took part. It is Helion's fourth venture round on record; the one before was a Series E in Nov 2021.
$35M
Amount raised
Not disclosed
Post-money valuation
1
Investors
no lead named
Valuation
What this round says about the price
Helion did not disclose a valuation in this round; its last disclosed one was $3.00B at the Series E (Nov 2021). It came 22 months after Helion's Series E. It is 2.4% of the $1.47B Helion has raised in the venture rounds on record. Helion raised again 16 months later: a Series F round of $425M in Jan 2025, at $5.42B post-money.
Helion's funding rounds
Helion has 6 venture rounds on record. This one is highlighted.
Investors
Who put money in
1 firm took part; no lead investor was named.
Investors
- Nucor new investor
Comparable rounds
How it compares
23 Growth rounds in Renewable energy companies within a year either side disclosed an amount; the median was $182M, and this round was 19% of the median. The closest in time, other companies' Growth rounds in Renewable energy companies:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Renewable energy companies | 27 Sep 2023 | $115M | not disclosed | not named |
| Renewable energy companies | 29 Sep 2023 | $43M | not disclosed | not named |
| Renewable energy companies | 28 Oct 2023 | $182M | not disclosed | OMV AG |
| Renewable energy companies | 1 Aug 2023 | $90M | not disclosed | SPX Capital and Lightrock |
| Renewable energy companies | 16 Aug 2023 | $60M | not disclosed | not named |
| Renewable energy companies | 22 Jul 2023 | $257M | not disclosed | CVC DIF |
| Renewable energy companies | 19 Jul 2023 | $67M | not disclosed | not named |
| Renewable energy companies | 4 Jul 2023 | $39M | not disclosed | Climate Fund Managers |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Helion raise in its Growth round?
Helion raised $35M in its Growth round, announced in Sep 2023.
Which investors took part in Helion's Growth round?
Nucor.
What was Helion's valuation at the Growth round?
It was not disclosed; its last disclosed one was $3.00B at the Series E (Nov 2021).
How does it compare with other Growth rounds in Renewable energy companies?
23 Growth rounds in Renewable energy companies within a year either side disclosed an amount; the median was $182M, and this round was 19% of the median.
Did Helion raise again after this round?
Yes: a Series F round in Jan 2025 of $425M at $5.42B post-money.