I
ION-X
Space · Boulogne-Billancourt, France · Founded 2021
Next-gen high performance satellite propulsion MoreLess
ION-X is a pioneering startup in the field of small satellite propulsion systems. The company's patented technology, an ionic liquid electrospray thruster, is set to revolutionize the rapidly growing small satellites market. These satellites, which are expected to increase significantly in the next decade, are used for various purposes such as communication, earth observation, climate monitoring, and military needs. ION-X's propulsion systems are designed to optimize the utilization and lifespan of these satellites in Low Earth Orbit.
The company's technology works by using a high-voltage electric potential to form a Taylor cone, which triggers the extraction of charged particles from the ionic liquid. These particles are then ejected at high speed to provide thrust. The system is simple, efficient, and powerful, offering unmatched thrust and fuel efficiency. It also allows satellite operators to adjust the thrust and efficiency in real time based on the required orbital maneuvers.
ION-X's business model revolves around the development and marketing of these propulsion systems. The company is currently developing a 1U plug-and-play thruster, which is expected to hit the market by mid-2024. This product is designed to be non-toxic and non-pressurized, making it safe and easy to operate. It is also well-suited for end-of-life management or debris avoidance maneuvers, further enhancing its value proposition.
ION-X's target market includes satellite operators and constellation projects. The company's competitive advantage lies in its cost-effective production and manufacturing processes, which are compatible with at-scale roll-out. This allows ION-X to offer competitive lead times, making it an attractive choice for clients.
Keywords: Small Satellite Propulsion, Ionic Liquid Electrospray Thruster, Low Earth Orbit, Satellite Lifespan Optimization, High-Voltage Electric Potential, Thrust and Fuel Efficiency, Non-Toxic Propellant, End-of-Life Management, Cost-Effective Production, Competitive Lead Times.
Company overview
ION-X company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2021
- Headquarters
- Boulogne-Billancourt, France
- Employees
- 30
- Open positions
- None listed
- Dealroom signal
- 74.8
Valuation & funding
ION-X funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SUPPORT PROGRAM✓Other financing | Jun 2026 | $110K | — | EUSPA · CASSINI Initiative | ↗ |
| SERIES A✓Equity / VC | Dec 2024 | $14M | $57M | Tf Participations · Ile-de-France (Paris Region) · Expansion Ventures · EIC Fund | ↗ |
| SUPPORT PROGRAM✓Other financing | Nov 2024 | $83K | — | CASSINI Initiative · EUSPA · Cassini Business Accelerator | ↗ |
| EARLY VC✓Equity / VC | Nov 2023 | $0 | — | EIC Fund | — |
| GRANT✓Other financing | Nov 2023 | $2.5M | — | European Innovation Council | — |
| SUPPORT PROGRAM✓Other financing | Sep 2022 | CDL-Paris | — | ||
| SEED✓Equity / VC | Jun 2022 | Tf Participations · Business Angels · Geodesic Fund | ↗ | ||
| SUPPORT PROGRAM✓Other financing | Jan 2022 | EUSPA · CASSINI Initiative | ↗ | ||
| SPINOUT✓Other financing | May 2021 | CNRS Innovation · French National Centre for Scientific Research - CNRS | — | ||
| SUPPORT PROGRAM✓Other financing | Feb 2018 | HEC Challenge+ · HEC Paris | — |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 29 |
| 2025 | 29 |
| 2024 | 19 |
| 2023 | 12 |
| 2022 | 8 |
Growth signals
ION-X website traffic
Latest recorded traffic for ION-X is 190 monthly website visits, down 64.2% over the last three months. ION-X's team grew 3.4% over the past year.
Comparisons
ION-X compared with similar companies
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Talent graph
ION-X's talent
Source: Dealroom Talent Intelligence.
Investors
17 investors on ION-X's cap table
Sourced from Dealroom's funding and investor records.














Global footprint
Where ION-X has talent and traffic
team presence
In the news
Latest news about ION-X
Recent press, funding announcements, and product moves mentioning ION-X — open to read from the original sources.
Market sentiment
What the market is saying about ION-X
An AI-synthesized read of the highest-engagement posts about ION-X on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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