Japanese startup Letara secures $16M to scale hybrid rocket technology

The funding round, co-led by Headline Asia, JIC Venture Growth Investment, and Incubate Fund, marks a transition from academic research at Hokkaido University to commercial production. Strategic investors, including Toyoda Gosei and NES Corporation, joined the round to support the development of propulsion systems that utilize inexpensive, widely available materials like plastic and rubber as solid fuel. By separating these fuels from the liquid oxidizer, Letara claims its system generates higher thrust with less waste than traditional paraffin-based models.

Co-CEO Shota Hirai noted that the company is specifically addressing the historical technical hurdles of hybrid propulsion: thrust generation, performance stability, and combustion control. As the global hybrid rocket market climbs toward a projected $2.6 billion valuation by 2032, Letara is positioning itself against a crowded field of international competitors, including Germany’s HyImpulse and South Korea’s InnoSpace. The company has already secured undisclosed contracts from private rocket firms and the Japanese government, with an upcoming in-orbit firing test serving as the next critical step toward full commercialization.