Tokamak Energy

Company UK Private Editorial profile Funding raised: $250M Website

Profile

Spherical tokamak (ST40) with HTS magnets; reached 100M°C in 2022.

Editorial profile — compiled by us from public sources.

Founded: 2009
Headquarters: Oxford, UK
Funding raised: $250M

Current standings

Standings and milestones are always verified by us against primary sources, regardless of who manages the profile.

Plasma temp 100M°C 100M°C, ST40 (2022) Triple product 6×10¹⁸ ≈6×10¹⁸, ST40 spherical tokamak (2022)

Roadmap & milestones

£70M STEP magnet contract — UK flagship fusion plant

2026-04

Tokamak Energy / UKIFS

Tokamak Energy named Magnet Systems Partner for the UK government's STEP programme — the first-of-a-kind plant at West Burton (UKAEA / UK Industrial Fusion Solutions). A £70M (~$95M) contract (2026–2029) leading eight HTS magnet work packages via its TE Magnetics division; its ST40 spherical tokamak serves as a high-field testbed.

Press release · 2026-04