Hokkaido-based company plans to take its hybrid rocket technology into wider space, defence, and security applications.
Japanese space technology startupLetara has raised ¥2.6 billion, or about $16 million, as it looks to expand beyond its established satellite propulsion business. The Sapporo-based company is developing hybrid rocket technology and plans to use the new funding to pursue opportunities across the wider space, defence and security markets.
The funding marks a significant shift in this company’s ambitions. Letara was originally established in 2020 as a spinout from Hokkaido University with its work largely centred on propulsion systems for satellites. Its latest strategy seeks to build on that technology and address a broader set of applications as demand for space-based infrastructure and launch capabilities grows.
Hybrid propulsion at the centre of its technology.
Letara’s propulsion system uses a hybrid rocket design in which solid fuel is kept separate from a liquid oxidiser. The company uses relatively inexpensive materials, including plastic and rubber, as solid fuel and has developed its own manufacturing process to produce fuel that ignites consistently and burns in a controlled manner.
Hybrid rockets have attracted interest because they can offer some of the characteristics of both solid- and liquid-fuel systems. However, achieving reliable thrust and controlling combustion have historically presented engineering challenges. Letara says its technology is designed to address these issues while providing a propulsion option for spacecraft and other applications.
Looking beyond the satellite market
The company is now targeting satellite manufacturers and operators, launch providers and government customers. Commercial satellites remain an important market for its in-space propulsion systems, while government demand is opening additional opportunities in rocket technology and defence-related applications.
Letara has also secured orders from rocket and satellite companies and the Japanese government, although it hasn’t disclosed the value of those contracts. Startups in Japan, South Korea, Singapore, Germany and Australia are developing competing technologies, while other space companies are pursuing alternative propulsion and launch systems. The global hybrid rocket propulsion market is projected to grow from $848 million in 2024 to $2.6 billion by 2032, according to figures cited by TechCrunch.
For Letara, the challenge now is turning its propulsion expertise into a broader business without losing focus on the technology that established its position in the first place. Its latest funding gives the company additional resources to test that expansion across an increasingly competitive global space industry.
