Japanese space tech startup Letara expands beyond satellite thrusters with $16M
Sapporo-based space tech startup Letara secures ¥2.6 billion in new funding to expand hybrid rocket development into defense and large launch markets.
Stock photo for illustration only, not from the actual event
- Japanese space tech startup Letara secured ¥2.6 billion (approx. $16 million) in new funding.
- The company is expanding from satellite thrusters to large rocket systems for space and defense markets.
- Its hybrid propulsion technology uses inexpensive materials like plastic and rubber separated from liquid oxidizer.
- Key goals include solving thrust generation, performance maintenance, and combustion control challenges.
Japan is pouring billions of dollars into its burgeoning space industry and easing restrictions on defense exports, efforts designed to build a homegrown aerospace sector filled with domestic startups that have a global reach.
Letara, a Sapporo-based startup developing hybrid propulsion systems for spacecraft, is looking to capitalize on that push. After focusing on hybrid thrusters for small satellites, the company now plans to develop large rocket systems for the space, defense, and security markets, co-CEO Shota Hirai told TechCrunch.
Letara's strategic expansion highlights Japan's broader push to foster domestic deep-tech companies and integrate aerospace innovation with national defense capabilities amid shifting geopolitical dynamics in East Asia.
Stock photo for illustration only, not from the actual event
That expansion is being fueled by ¥2.6 billion (~$16 million) in new funding that comes as the startup tries to turn years of academic research and demonstrations into a commercial business. The round was co-led by Headline Asia, JIC Venture Growth Investment, and Incubate Fund, with participation from strategic investors including NES Corporation, Toyoda Gosei, and Frontier Innovations, a fund backed by Japan's space agency JAXA.
At the heart of Letara’s technology is a hybrid rocket design that keeps its solid fuel separate from the liquid oxidizer needed for combustion. Inexpensive, widely available materials such as plastic and rubber are used as solid fuel. The company has developed a proprietary manufacturing process that mixes, shapes, and compresses these materials to ensure they ignite reliably and burn consistently, delivering more thrust with less waste than traditional hybrid rockets using paraffin wax.
The aim is to solve three problems that have so far limited the use of hybrid propulsion: generating sufficient thrust, maintaining performance, and controlling combustion, Hirai said.
"The aim is to solve three problems that have so far limited the use of hybrid propulsion: generating sufficient thrust, maintaining performance, and controlling combustion."
Shota Hirai
The idea for Letara emerged while co-CEOs Landon Thomas Kamps and Hirai were researching rocket propulsion at Hokkaido University, believing the relative safety and simplicity of hybrid rockets could make the technology useful beyond traditional space programs as private companies expand into the industry.
The company is targeting key customer segments, including:
- Satellite makers and operators
- Launch service companies
- Government agencies and defense contractors
Its next major milestone is an in-orbit firing test with an overseas partner, which Letara views as a key step toward commercialization, alongside establishing a repeatable manufacturing process backed by quality controls and a reliable supply chain.
Source: TechCrunch
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