Ion-X
Unlock your on-orbit potential
Paris · Founded 2021 · $17.8M raised
- Headquarters
- Paris
- Employees
- 1–10
- Founded
- 2021
- Business Model
- B2B
- Website
- ion-x.space
- Total Funding
- $17.8M
- Last Round
- $13.7M Series ADec 2024
- Rounds
- 2
About
ION-X, created in mid-2021 in partnership with C2N (CNRS/University of Paris-Saclay) and venture builder Technofounders, industrializes ionic liquid electrospray thrusters for small-satellite propulsion. Built on Professor Jacques Gierak's 30+ patents and 35+ years of ion-source research, the company has raised over EUR 16.8 million, including a EUR 13 million Series A round, and completed the first in-orbit firing of a European ionic liquid propulsion system in 2025.
Summary
Ion-X is a Space Tech company based in Paris, founded in 2021. It has raised $17.8M in total across 2 rounds, most recently a $13.7M Series A round in Dec 2024. Investors include European Innovation Council Fund, Innovacom and Expansion Capital.
Sign up to view the funding chart
Create a free account — 25 credits a month to unlock funding history, valuations, and tech stacks.
Funding History
Dec 2024
Sign up to see all 2 rounds
Full funding history, per-round amounts, and investor participation.
Investors
Similar Companies
SpaceX designs, builds and launches advanced, reusable rockets and spacecraft with the goal of ma...
Space exploration company
Develops all-electric eVTOL aircraft and intends to operate urban air taxi services, serving comm...
Sierra Space is a commercial space company focused on creating a more accessible space economy.
We’re on a mission, and it starts with 100% reusable rockets.

AST SpaceMobile builds a space-based cellular broadband network that connects directly to standar...