H3X Technologies

As the world pushes toward "electrification of everything," industries like aviation, marine transport, and heavy defense face a massive physics bottleneck: current electric motors are simply too heavy and inefficient to replace fossil fuels in heavy-duty applications. Having built electric race cars together in college, founders Jason Sylvestre, Max Liben, and Eric Maciolek launched H3X Technologies to shatter these limitations. H3X has developed fully integrated, megawatt-class electric motor drives that boast a power-to-weight ratio three times better than comparable systems.

By combining advances in material science, additive manufacturing, and power electronics, H3X has created incredibly lightweight, high-performance propulsion systems that make zero-emissions flight and heavy maritime transport viable. Cubit Capital backs H3X Technologies because they are committed to solving a foundational problem in the pursuit of enduring infrastructure. Their breakthrough motors provide the U.S. defense ecosystem with the agility and power needed for an electrified future.