Companies / Hephaestus
Hephaestus
London, England, United Kingdom
Hephaestus combines lower-cost high-temperature superconducting magnets with a more stable negative triangularity plasma to accelerate the path to commercial fusion energy
Hephaestus, based in London, England, United Kingdom, has 3 investors on file, among them Climate Capital, Teampact Ventures and Unruly Capital. Its latest round on record is Series A, 21 Oct 2026. Its site was last checked 13 Nov 2026: site answers.
Funding
1 round on recordRound sizes and total raised are on Fundup AI, our sister product for funding data.
Investors
3 investors on file| Investor | Evidence | Type |
|---|---|---|
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital |
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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$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/companies/hephaestus.energy/investors
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GET /v1/companies/hephaestus.energy
GET /v1/companies/hephaestus.energy/news