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Japanese Space Tech Startup Letara Expands Beyond Satellite Thrusters with $16M Series A Extension

Japanese Space Tech Startup Letara Expands Beyond Satellite Thrusters with $16M Series A Extension
The Silicon Review
24 August, 2026
Author: Sashindra Suresh

Japanese space tech startup Letara has raised a $16 million Series A extension led by Global Brain, with participation from Airbus Ventures and others, to expand beyond satellite thrusters into new space technologies.

Letara, a Japanese space tech startup that specializes in satellite thrusters, has secured a $16 million Series A extension to broaden its product portfolio and expand its market presence. The round was led by Global Brain, with participation from Airbus Ventures, SBI Investment, Mitsubishi UFJ Capital, and previous investors.

"This funding will enable us to accelerate our development of next-generation space technologies and expand our offerings beyond satellite thrusters," said a Letara spokesperson.

From Thrusters to a Broader Space Portfolio

Founded in 2021, Letara initially focused on developing water-based propulsion systems, a propellant that is non-toxic and easier to handle, making it safer and more cost-effective for satellite operators. The new funding will allow Letara to expand into adjacent space technologies, including advanced power systems and in-orbit servicing solutions.

"The space industry is rapidly evolving, and we see significant opportunities beyond our core thruster business," the spokesperson added.

Growing Momentum in Japan's Space Sector

The funding comes as Japan's space industry continues to attract investment and government support. The country has been ramping up its space ambitions, with a focus on satellite constellations, lunar exploration, and in-orbit services. Startups like Letara are part of a growing ecosystem that is positioning Japan as a significant player in the global space economy.

"Letara's innovative approach to satellite propulsion has already gained traction, and we are excited to support their expansion into new areas," said a representative from Global Brain.

A Vote of Confidence from Airbus Ventures

The participation of Airbus Ventures, the venture capital arm of the European aerospace giant, is a notable endorsement of Letara's technology and growth strategy. Airbus Ventures has a history of investing in promising space tech startups that are pushing the boundaries of innovation.

"We believe Letara has the potential to become a leader in the Asian space tech sector," an Airbus Ventures representative said.

Here is the question this expansion raises. Letara is moving beyond satellite thrusters with a $16 million funding round backed by Global Brain and Airbus Ventures. When a startup expands its product portfolio, what new opportunities and challenges will arise?

FAQ:

Q: What is Letara's core technology?
A: Letara specializes in water-based satellite propulsion systems, which are non-toxic, safer, and more cost-effective than traditional propellants.

Q: How much funding did Letara raise in its Series A extension?
A: Letara raised $16 million in a Series A extension led by Global Brain, with participation from Airbus Ventures, SBI Investment, and Mitsubishi UFJ Capital.

Q: What new areas is Letara expanding into with the new funding?
A: Letara plans to expand into advanced power systems and in-orbit servicing solutions, broadening its product portfolio beyond satellite thrusters.

Q: Who participated in Letara's Series A extension?
A: The round was led by Global Brain and included Airbus Ventures, SBI Investment, Mitsubishi UFJ Capital, and previous investors.

Q: What is Letara's growth strategy?
A: Letara aims to broaden its product portfolio, expand its market presence, and become a leader in the Asian space tech sector.

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