The facilities pushing fusion forward.
From the largest experiment ever built to compact machines chasing net energy, these are the landmark labs where the work happens. Each links to the team that runs it.
ITER
Saint-Paul-lès-Durance, France
The world’s largest fusion experiment, a 35-nation collaboration aiming to produce 500 MW of fusion power from 50 MW of input heating.
National Ignition Facility (NIF)
Lawrence Livermore National Lab, USA
The 192-beam laser that first achieved fusion ignition (scientific energy gain) in December 2022.
Wendelstein 7-X
IPP Greifswald, Germany
The most advanced stellarator ever built, demonstrating steady-state plasmas with record energy-confinement performance.
JET (Joint European Torus)
Culham, United Kingdom
Held the fusion energy record (69 MJ in a pulse) before its final 2023 campaign; now being repurposed and studied.
DIII-D National Fusion Facility
General Atomics, San Diego, USA
The largest operating tokamak in the U.S. and a national user facility for advanced divertor and control research.
EAST
ASIPP, Hefei, China
The Experimental Advanced Superconducting Tokamak, known for record long-pulse, high-confinement plasmas over 1,000 seconds.
KSTAR
KFE, Daejeon, Korea
Korea’s superconducting tokamak, famous for sustaining 100-million-degree plasmas for record durations.
JT-60SA
QST, Naka, Japan
The largest operating superconducting tokamak in the world, a Japan–Europe partnership supporting ITER.
WEST
CEA Cadarache, France
A superconducting tokamak (the former Tore Supra) testing ITER-like tungsten walls; it recently held a plasma for a record 22+ minutes.
Large Helical Device (LHD)
NIFS, Toki, Japan
One of the world’s largest heliotron/stellarator devices, studying steady-state magnetic confinement.
SPARC
Commonwealth Fusion Systems, USA
A compact high-field tokamak designed to be the first to achieve net fusion energy gain (Q > 1) commercially.
MAST Upgrade
UKAEA Culham, United Kingdom
A spherical tokamak testing the innovative Super-X divertor for handling exhaust heat.
Z Pulsed Power Facility
Sandia National Labs, USA
The world’s most powerful pulsed-power machine, driving magnetized-target fusion experiments.
200+ labs, one directory
ITER maintains a directory of fusion research institutions in more than 40 countries, the most complete map of where this work happens.
Open the worldwide fusion map →