{"changes":[],"country":"GB","description":"Tokamak Energy is pursuing commercial fusion power through compact spherical tokamaks paired with high-temperature superconducting magnets, targeting the 2030s. It serves the clean energy market, and its TE Magnetics arm licenses magnet technology for medicine. Its ST40 reached a plasma ion temperature above 100 million degrees Celsius.","domain":"tokamak.energy","employees":null,"founded":2009,"fundingTotalQuarantined":false,"githubOrg":null,"githubStars":null,"industry":"deeptech","investors":[],"lat":51.752013,"lng":-1.25785,"location":"Oxford, UK","name":"Tokamak Energy","rounds":[{"amountQuarantined":false,"amountUsd":127000000,"currency":"GBP","date":"2024-11-01","investors":[],"leadInvestor":null,"source":{"fact":"round","publisher":"sifted","retrievedAt":"2026-05-07","status":"attributed","url":null},"status":"attributed","type":"seed","url":null}],"slug":"tokamak-energy","sources":[{"fact":"round","publisher":"sifted","retrievedAt":"2026-05-07","status":"attributed","url":null},{"fact":"existence","publisher":"tokamak.energy","retrievedAt":"2026-05-07","status":"self-reported","url":"https://tokamak.energy"},{"fact":"description","publisher":"tokamak.energy","retrievedAt":"2026-05-07","status":"self-reported","url":"https://tokamak.energy"}],"stage":"series-b+","techStack":[],"totalRaisedUsd":482600000,"updatedAt":"2026-05-07"}