Helion Energy specializes in developing fusion energy technology to produce clean, safe, and scalable electricity.
helionenergy.comLinkedInRedmond, WashingtonEnergy
2 sources
The $1.5 billion figure is total funding raised to date, not a financing total for this round, so it is excluded.
Published by hand (helionenergy.com): "Helion Raises $465 Million Series G Funding Round to Meet Surging Global Demand for Power": brand backfill hand check: the page states the round (announced)
1 source
The release names a major university endowment as a participating investor but does not identify it. The $1 billion figure is total invested in Helion, not this round’s financing total.
Published by hand (helionenergy.com): "Helion, a fusion energy company, today announced a $425 million Series F": brand backfill hand check: the page states the round (announced)
2 sources
The announced $500 million is distinct from the additional $1.7 billion tied to Helion reaching performance milestones.
1 source
The release states the round closed on the preceding day but announces it on September 23, 2020; the announcement date uses the release date. The $77.8 million figure is total funding since founding, not this round's financing total.
Published by hand (helionenergy.com): "Yesterday, Helion closed a $40 million Series D funding round led by": brand backfill hand check: the page states the round (announced)
1 source
The source does not identify a lead investor or state a valuation.
Published by hand (techcrunch.com): "So it came as a surprise to hear that Y Combinator and Mithril Capital Management are investing $1.5 million in Helion Energy": brand backfill hand check: the page states the round (announced)
| Round | Amount | Announced | Lead | Buzz |
|---|---|---|---|---|
| Series G [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $465M $1.5B to date at $15.5 billion valuation | 2026-06-04 | Thrive Capital | No recent discussion |
2 sources [ VERIFIED ] read against 1 of 2 sources
The $1.5 billion figure is total funding raised to date, not a financing total for this round, so it is excluded. Published by hand (helionenergy.com): "Helion Raises $465 Million Series G Funding Round to Meet Surging Global Demand for Power": brand backfill hand check: the page states the round (announced) | ||||
| Series F [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $425M $1.0B to date at $5.425 billion post-money valuation | 2025-01-28 | not stated | No recent discussion |
1 source [ VERIFIED · CORRECTED ] read against 1 source The release names a major university endowment as a participating investor but does not identify it. The $1 billion figure is total invested in Helion, not this round’s financing total. Published by hand (helionenergy.com): "Helion, a fusion energy company, today announced a $425 million Series F": brand backfill hand check: the page states the round (announced) [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: helionenergy.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]correctedchecked against 1 source·[ BRANDING ]logo and colour from the homepage | ||||
| Series E [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $500M | 2021-11-05 | Sam Altman | No recent discussion |
2 sources [ VERIFIED ] read against 2 sources The announced $500 million is distinct from the additional $1.7 billion tied to Helion reaching performance milestones. [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]2 pages read: helionenergy.com, businesswire.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]confirmedchecked against 2 sources·[ BRANDING ]logo and colour from the homepage | ||||
| Series D [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $40M at $1.25B valuation | 2020-09-23 | Dustin Moskovitz | No recent discussion |
1 source [ VERIFIED ] read against 1 source The release states the round closed on the preceding day but announces it on September 23, 2020; the announcement date uses the release date. The $77.8 million figure is total funding since founding, not this round's financing total. Published by hand (helionenergy.com): "Yesterday, Helion closed a $40 million Series D funding round led by": brand backfill hand check: the page states the round (announced) [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: helionenergy.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]confirmedchecked against 1 source·[ BRANDING ]logo and colour from the homepage | ||||
| Series A [ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $1.5M | 2014-08-14 | not stated | No recent discussion |
1 source [ VERIFIED · CORRECTED ] read against 1 source
The source does not identify a lead investor or state a valuation. Published by hand (techcrunch.com): "So it came as a surprise to hear that Y Combinator and Mithril Capital Management are investing $1.5 million in Helion Energy": brand backfill hand check: the page states the round (announced) [ BUILT WITH ]·[ SEARCH ]found by Firecrawl search·[ SCRAPE ]1 page read: techcrunch.com·[ JSON ]round read into a schema, with the sentence that states it·[ VERIFY ]correctedchecked against 1 source·[ BRANDING ]logo and colour from the homepage | ||||