The company was founded by Jason Sylvestre, Eric Maciolek, and Max Liben. They manufacture high power density electric propulsion systems for aviation and urban air mobility markets. Their machine integrates the electric motor and inverter into a single unit, which allows aerospace companies to retrofit existing designs with coils to improve aircraft performance. H3X's first product, the HPDM-250, is a 250kW integrated motor drive in a 15kg package, designed to provide high performance for electric aircraft.