Commonwealth Fusion is developing smaller, cost-effective tokamak fusion systems using high-temperature superconducting magnets to produce net energy from fusion. The company aims to deliver clean, abundant energy through its SPARC machine, paving the way for the first commercial fusion power plant, ARC, to combat climate change.

Marathon Fusion develops integrated fuel‑cycle technologies for commercial fusion, including neutron‑driven transmutation reactors that generate valuable radioisotopes and gold as by‑products, and metal‑foil pumping systems that boost tritium burn efficiency and processing speed. It also offers high‑precision isotope‑separation solutions for fusion reactors and industrial applications, helping operators reduce fuel losses, lower inventory costs, and create additional revenue streams.

NearStar Fusion is developing a modular Magnetized Target Impact Fusion (MTIF) technology that enables the rapid integration of clean fusion energy into existing power grids and microgrid infrastructures. This approach addresses the need for a reliable, tritium-free energy source that can retrofit traditional hydrocarbon power plants, delivering limitless and always-on energy to cities and industries worldwide.

Thea Energy develops commercial fusion power by simplifying the stellarator architecture. The company replaces complex 3D magnet coils with mass-manufacturable modular coils managed by dynamic software controls. This approach aims to deliver an economical and scalable source of zero-emission energy for the global power supply.

Type One Energy Group develops stellarator fusion energy systems using high-field superconducting magnets and advanced manufacturing techniques to create a cost-competitive solution for clean energy generation. Their technology aims to provide a sustainable and abundant source of electricity, addressing the increasing global demand for reliable power while minimizing environmental impact.

Xcimer Energy is developing laser-driven inertial fusion technology to generate low-cost, carbon-free electricity for commercial use. This approach addresses the urgent need for sustainable energy sources by harnessing the power of high-energy lasers to produce fusion energy efficiently.