Jimmy specializes in the design and operation of nuclear thermal generators for the industrial sector, with a focus on decarbonized heat production. The company uses high-temperature reactor technology to deliver heat with significantly reduced CO₂ emissions. Jimmy provides a pricing model for its heat supply and manages the full lifecycle of its generators – including installation, operation and dismantling – tailored to the energy needs of industrial sites. Founded in 2020, the company is based in Levallois-Perret France.