French Propulsion Startup ION-X Secures €13M in New Funding

French satellite propulsion startup ION-X has secured €13 million in new funding to begin the industrialization of its ion thrusters.
Credit: ION-X

Satellite propulsion startup ION-X has announced that it has secured €13 million in new funding, which it will use to scale up the production of its thrusters. The company has now raised approximately €17.3 million.

Founded in 2021, ION-X is developing a novel propulsion system for small satellites that utilizes ionic liquid electrospray thrusters. In May 2024, the French aerospace agency CNES signed a contract to become its first customer. ION-X will deliver a total of three propulsion systems to CNES in the second half of 2025, which will be used for ground testing and in-flight performance verification.

On 10 December, ION-X announced the successful closure of a €13 million funding round. The round saw contributions from existing investors Expansion Ventures and Technofounders Participation, as well as new backers, including the European Innovation Council Fund and the Île-de-France Region through its Reindustrialization Fund.

ION-X will use the funding to industrialize its thrusters, aiming for a production rate of 10 units per month by 2026. By 2028, the company plans to scale up to an annual output of 200 thrusters from a new production facility in the Île-de-France region.

“This funding round is a decisive step for ION-X. It allows us not only to launch the industrialization of our ion thruster but also to accelerate our growth in a rapidly expanding sector,” said ION-X CEO Thomas Hiriart. “We are deeply convinced that our propulsion solutions can revolutionize the space mobility market, contribute to sustainable, innovative, and cost-effective space missions, and carve out a significant commercial position in a market eager for reliable thrusters.”

The first in-orbit demonstration of an ION-X ion thruster is expected to begin in early 2025. The propulsion system will be aboard a Space Inventor satellite, which will be launched by a SpaceX Falcon 9.

Andrew Parsonson
Andrew Parsonson has been reporting on space and spaceflight for over five years. He has contributed to SpaceNews and, most recently, the daily Payload newsletter. In late 2021 he launched European Spaceflight as a way to promote the continent's excellence in space.