Commonwealth Fusion Systems develops compact fusion reactors using advanced superconducting magnet technology to create commercially viable clean energy systems. Founded in 2018 and headquartered in Devens, Massachusetts, the company emerged from MIT research to tackle the longstanding challenge of making fusion power economically feasible. CFS differentiates itself through its SPARC tokamak design, which leverages high-temperature superconducting magnets to achieve fusion conditions in a significantly smaller reactor footprint than traditional approaches. The company is focused on demonstrating net energy gain with its SPARC reactor before scaling to commercial power generation with its planned ARC power plant.