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Letara Ltd.
Space demonstration of hybrid chemical propulsion using plastic as fuel

Letara Ltd.

As of April, 2025

City Year of Establishment Founder
Hokkaido Sapporo city 2020 Shota HIRAI
Landon KAMPS
Harunori NAGATA
Partner VC Latest round of Fundraising Valuation
Incubate Fund Co., Ltd. Seed Non-Disclosure
  • Contact Information: 81-11-600-6840
  • info@letara.space
  • Website: Letara Ltd.

Program name

Deep-Tech Startups Support Program

Business Plan

By utilizing hybrid rocket technology that employs a solid fuel and a liquid oxidizer, and using plastic as the fuel, we aim to develop a propulsion system that offers thrust comparable to that of liquid propulsion systems, while eliminating the risk of explosion. This results in a safe and high-thrust solution. By addressing the issues of explosiveness, danger, and high cost inherent in existing engines, our mission is to develop cutting-edge engines for fast and safe space travel.

Research Outline

In the initial market, the goal of this project is to conduct a subscale space demonstration, with the aim of eventually providing a propulsion system for maneuvering in space that enables safe orbital transfers. This system will initially target small spacecraft with a mass of 200 kg or less, and later expand to support larger spacecraft exceeding 200 kg.

Phase Business Area/Field Research Period Research Grant Amount
PCA Aerospace 2025-2026FY JPY 998 million

International collaborative technology demonstration

Countries/Regions Collaborative activity outline
Europe -

Last Updated : August 13, 2025