Helion

Alternative Energy Equipment · Everett, WA · Founded 2013 · Privately Held (backing)

Developer of a fusion energy technology designed to generate clean electricity through controlled nuclear fusion. Helion is based in Everett, WA and was founded in 2013. It was valued at $15 billion at its Series E in Nov 2021, the last priced event on record. It has raised $1 billion across 2 recorded rounds; the latest was a $500 million Series E in Nov 2021.

PMV mark · valuation
$15.0B
Oct 2026
Priced at
its Series E
Nov 2021
Total raised
$1.0B
Last round
Later Stage VC (Series E)
Nov 2021
How much has Helion raised?
$1.0Bacross 2 recorded rounds · Sep 2020 – Nov 2021

Most recently, Helion raised $500.0M in its Later Stage VC (Series E) (Nov 2021).

Free account
More of Helion with a free account
  • ·The complete investor list: 25 names
  • ·Watch Helion: the Monday email on marks, rounds and moves
Create free account
No card required

Membership and data by Private Market View

Helion round by round

2 rounds
Nov 2021Later Stage VC (Series E)$500.0M▮
+ 1 more investors · free account
Sep 2020Later Stage VC (Series D)$39.8M▮
+ 1 more investors · free account

How much has Helion raised?

Helion has raised $1 billion in total; 2 of its rounds are on record. The largest on record was a $500 million Series E in Nov 2021.

Helion investors

25 investors are on record for Helion, including Y Combinator, Lightspeed Venture Partners, U.S. Department of Energy and SoftBank Investment Advisers. By type, the record holds 5 venture capital firms and 3 hedge funds. The Series E in Nov 2021 drew 14 investors.

For fundraisers
Raising for a company like Helion?

25 investors have backed Helion — start your target list with the firms already writing checks in alternative energy equipment.

See all 25 investors →

Frequently asked about Helion

How much has Helion raised?
Helion has raised $1.0B in total across 2 recorded funding rounds.
When was Helion's last funding round?
Helion's most recent recorded round was Later Stage VC (Series E) in Nov 2021, raising $500.0M.