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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,962 companies indexed · Last updated: today
DirectoryIndustryAircraft ManufacturingSionH55 SA
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H55 SA

Summary

About the company

The core activity of H55 is the development and manufacturing of electrical propulsion systems for aviation, specifically lightweight, modular and certifiable energy storage and management systems as well as complete electrical propulsion systems.

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Products & services

Industry:Aircraft ManufacturingMechanical Engineering Industry
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Electric Propulsion System (EPS)
Electric Propulsion System (EPS) for aircraft, consisting of an Energy Storage System, Electric Propulsion Unit, Power Management, and associated components and interfaces.
Energy Storage System (ESS)
Energy Storage System (ESS) with battery packs, Battery Management Systems, and all interfaces to the EPS and aircraft systems, modular and adaptable to customer requirements.
Electric Propulsion Unit (EPU)
Electric Propulsion Unit (EPU) with electric motor, Motor Controller, inverter, and power electronics, designed for redundant and certifiable propulsion systems.
Aircraft integration
Aircraft integration for existing and new aircraft programs, including support with integration, optimization, and adaptation of the electric propulsion and battery systems.
Certification and type certification support
Certification and type certification for electric propulsion systems and battery systems, including EASA validation, DOA/POA, safety standards, and support with the FAA and Transport Canada.
Customer programs for aircraft OEMs and operators
Customer programs for OEMs, component manufacturers, and operators, with tailored electric and hybrid solutions for new aircraft designs and retrofit programs.
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Location

Route de l'Aéroport 10
1950 Sion

At a glance

Legal form
Corporation
UID
CHE-423.538.169
Founded
2015 · 11 years
Last commercial register change
April 23, 2026
Employees
21 to 50

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