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Companies / Helical Fusion

Helical Fusion

Tokyo, Japan

Helical Fusion develops and utilizes helical-type nuclear fusion reactors to achieve sustainable and stable energy production.

EducationIndustrial & Manufacturing

Helical Fusion, based in Tokyo, Japan, has 2 investors on file, among them Keio Innovation Initiative and Sony Innovation Fund. Its latest round on record is Series B, 27 Apr 2026, of 2 rounds. Its site was last checked 6 Nov 2026: site answers.

helicalfusion.com

Funding

2 rounds on record
Latest roundSeries B27 Apr 2026
Since that round7 monthsno later round on record
Time between rounds5 monthson average, over 2 rounds
Investors in its rounds6none with a VCinfo profile yet
Apr 2026Series B6 investors named
Dec 2025Series ALed by Ecrowd NEXT fund

Round sizes and total raised are on Fundup AI, our sister product for funding data.

Investors

2 investors on file
InvestorEvidenceType
Keio Innovation InitiativePortfolio pageVenture capital
Sony Innovation FundPortfolio pageCorporate VC

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Its portfolio leans to Healthcare & Biotech (36%), AI & Machine Learning (17%), Industrial & Manufacturing (14%).

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See Keio Innovation Initiative's full profile · Who invests alongside it

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170 companies on its checked portfolio

Its portfolio leans to AI & Machine Learning (19%), Healthcare & Biotech (14%), Enterprise Software (13%).

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See Sony Innovation Fund's full profile · Who invests alongside it

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

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VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/companies/helicalfusion.com/investors

# also
GET /v1/companies/helicalfusion.com
GET /v1/companies/helicalfusion.com/news
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