Every fusion startup that has raised over $100M

The article highlights the recent surge in private investment and technological progress in fusion energy startups, which are moving fusion power closer to commercial viability after decades of skepticism. Advances in computing power, AI, and high-temperature superconducting magnets have enabled more sophisticated reactor designs and control methods. A key milestone was achieved in late 2022 when a U.S. Department of Energy lab produced a controlled fusion reaction that reached scientific breakeven, confirming the fundamental science behind fusion energy. This breakthrough has energized founders and investors, fueling rapid growth and large funding rounds in the fusion startup space. Among the leading companies, Commonwealth Fusion Systems (CFS) stands out, having raised nearly $3 billion, about a third of all private fusion capital. CFS is developing Sparc, a tokamak reactor with high-temperature superconducting magnets designed in collaboration with MIT, aiming for operation by 2026-2027. They plan to follow with Arc, a commercial-scale 400 MW power plant, with Google as a power