Commonwealth Fusion Systems

Cambridge, MA

Commonwealth Fusion Systems (CFS) is an American company founded in 2018 aiming to build a compact nuclear fusion power plant based on the ARC tokamak reactor concept. The company is based in Cambridge, Massachusetts, and is a spin-off of the Massachusetts Institute of Technology (MIT). CFS is a member of the United States Department of Energy’s INFUSE public-private knowledge innovation scheme, with Princeton Plasma Physics Laboratory and the MIT's Plasma Science and Fusion Center.