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Aerospace, Maritime and Defense Tech Seed Founded 2020

Letara

Letara manufactures hybrid propulsion systems for small satellites and spacecraft, using plastic as rocket fuel to provide thrust for orbital maneuvering and transportation. The company's proprietary ignition and thrust control technologies make space propulsion systems using plastic as fuel possible for the first time. Letara's first product lineup is a modular propulsion system for small satellite and spacecraft…

📍 Sapporo, Japan · Space Tech

Funding snapshot

Last roundSeed
Amount$6M
Date6 June 2025
Total raised$16M
Team size40

About

Letara manufactures hybrid propulsion systems for small satellites and spacecraft, using plastic as rocket fuel to provide thrust for orbital maneuvering and transportation. The company's proprietary ignition and thrust control technologies make space propulsion systems using plastic as fuel possible for the first time. Letara's first product lineup is a modular propulsion system for small satellite and spacecraft developers, scalable from palm-sized satellites to future passenger spacecraft. Founded in 2020 and headquartered in Sapporo, Japan, the company has raised approximately $15.8M in seed funding. Letara differentiates itself as Japan's foremost group of hybrid propulsion experts, established by members of Hokkaido University's Laboratory of Space Systems. The company envisions a future where large numbers of people and goods are transported freely through space within 24 hours from major space transportation hubs.

Business model

Space Tech > Space Hardware > Spacecraft

Institutional investors

Sumitomo Mitsui Banking Corporation Toyoda Gosei Incubate Fund JST NES SBI Investment BIG Impact Hokkaido Venture Capital Uematsu Mitsubishi UFJ Capital North Pacific Bank Kushiro-Ses Aozora ANA Trading SMBC Venture Capital

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