E-PROPS PROPELLERS is the older company (2008 vs 2017); H55 is the larger of the two.
1 signal in the last 90 days
Side-by-Side Comparison
| Metric | E-PROPS PROPELLERS | H55 |
|---|---|---|
| Founded | ||
| Founded | 2008 older | 2017 |
| Headquarters | ||
| Headquarters | France | Sion, Switzerland |
| Employees | ||
| Employees | 16 | 149 larger |
| Industry | ||
| Industry | Design, Manufacturing, Space | Manufacturing, Space |
| Funding Stage | ||
| Funding Stage | Non Equity Assistance | Series C |
| Total Funding | ||
| Total Funding | Not tracked yet | $140.07M |
| Funding Rounds | ||
| Funding Rounds | 1 | 7 |
| Services | ||
| Services | Manufacturing of Carbon Propellers, Design and Production of Aviation Components, Development of Ultra-Light Propulsion Solutions | Development and integration of certified electric propulsion systems for aviation industry |
| Target Customers | ||
| Target Customers | Aviation Companies, Ultralight Aircraft Manufacturers, Paramotor Enthusiasts, Drone Manufacturers | OEMs, component manufacturers, operators, and aviation design firms |
| Taxonomy | ||
| Taxonomy | Carbon-Titanium Propellers, Aviation Technology, Ultralight Aircraft, Paramotor Propellers, Drones, Electric Propulsion Systems, Silent Propulsion Systems, Light Aviation Equipment, Recreational Aviation, Propeller Manufacturing, Aeronautical Engineering, Performance Propellers, Lightweight Propellers, Aviation Innovation | Electric Propulsion Systems, Aviation Technology, Certified Technology Solutions, Sensor Technology, Battery Management Systems, Power Management Systems, Electric Motors, Electric Propulsion Certification, Aerospace Innovation, Autonomous Aviation, Zero Emission Aviation, Aviation Sustainability, Clean Energy Aviation, Quiet Aviation, Efficient Aviation |
| Website | ||
| Website | e-props.fr | h55.ch |
About E-PROPS PROPELLERS
E-PROPS PROPELLERS, founded in 2008, stands out in the aviation sector with its innovative Hi-Tech Carbon-Titanium propellers that cater to aircraft, ultralights, drones, and paramotors. Emphasizing their slogan, "E-PROPS: Fly Fast Fly Safe", the company creates the world's lightest propellers, know...
About H55
H55 is a Swiss-based startup founded in 2017, with a mission to enable the aviation industry to reach net zero. The company focuses on developing certified electric propulsion systems for the aviation industry, emphasizing on their cleanliness, quietness, safety, and affordability. With a strong foo...
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BounceWatch watches E-PROPS PROPELLERS and H55 for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at E-PROPS PROPELLERS and H55 — by email.
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Compiled from the BounceWatch company index. We last looked at E-PROPS PROPELLERS on 8 Jun 2026, and H55 on 25 Mar 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.