Jack Zamattio
CEO and founder · Hephaestus Technologies · London, United Kingdom
Energy Technology · Seed
Latest raise
$17.2M
Date raised
October 20, 2026
Round
Seed
InvestorsCiRi Ventures
Websitewww.hephaestus.energy
About Jack Zamattio
a provider of high temperature superconducting (HTS) magnets and negative triangularity fusion energy technology
- Who is Jack Zamattio?
- Jack Zamattio is listed as CEO and founder of Hephaestus Technologies, a energy technology company based in London, United Kingdom.
- How much did Hephaestus Technologies raise?
- Hephaestus Technologies raised $17.2M in a Seed round on October 20, 2026 (13 days ago). Backed by CiRi Ventures.
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