André Borschberg
Co-Founder and Executive Chairman
Discover H55
Electric Propulsion Solutions by H55
World leader in certified aviation electric propulsion systems
H55 is a Swiss-based company specialising in certified electric propulsion and certification-grade energy storage systems for aviation. The company enables electric aviation to scale by transforming commercial lithium cells into aviation-safe Energy Storage Systems that regulators approve, insurers underwrite, and OEMs can deploy repeatedly as a certified propulsion platform across aircraft programs. This is achieved through independent cell characterisation, rigorous incoming screening, redundant safety architectures, and regulator-aligned testing designed around worst-case failure scenarios.
The H55 Legacy
Founded as the technological legacy of the Solar Impulse program, H55 builds on more than two decades of hands-on electric aviation experience. The company has designed, built, and flown multiple electric aircraft and accumulated more than 2,000 hours of fully electric flight with zero battery-related incidents—providing the operational depth required to execute certification-grade programs, not merely comply with them.
100+
Engineers from 25 nationalities across 3 production, design, research and development, and aircraft Integration centers in Switzerland, Canada and France
4
The modularity of H55’s solutions allow the company to respond to the market demand for 4 different types of applications, the transformation of existing airplanes, electrifying new and existing designs for commuters, sTOL and eVTOL
6
Electric Aircrafts Powered by H55 Technology, totaling more than 1600 Hours of Flight
Our History
Industry Architects Setting the Standard and Accelerating the Commercialization of Certified Energy Storage Solutions
H55’s passionate and talented team is dedicated to changing the paradigms of air transportation. The company brings together managers, engineers and entrepreneurs, all like-minded professionals who understand how technological innovation can transform the future of aviation.
To support its next phase of industrialisation and international growth, H55 has strengthened its executive leadership team. Rob Solomon, Chief Executive Officer, brings experience in scaling technology-driven platforms and is leading H55’s expansion in the United States. Walt Lifsey, Chief Operating Officer, brings deep experience building and scaling technology companies at the operational level and oversees industrial operations, certification execution, and production readiness, ensuring a reliable transition from certified design to repeatable, series manufacturing.
Meet the leadership team
Rob Solomon
Chief Executive Officer
Walter Lifsey
President & Chief Operating Officer
Sebastien Aymon-Demont
Co-Founder and Chief Technology Officer
Gregory Blatt
Co-Founder and Head of Global Sales, Marketing & Public Policy
Martin Larose
Chief Program Officer and Business Development
Emmanuelle Doux
Head of Human Resources
Centers of excellence in Switzerland, Canada and France
H55 is headquartered in the heart of the Swiss alps, in the city of Sion. Fully-owned subsidiaries have been set up in Montréal, Canada and Toulouse, France, to work closely with H55’s existing customer base and to respond to the increasing demand for its clean aviation applications in the North American and European markets.
An Idea Born in
Switzerland
H55 is proud of its Swiss heritage. Switzerland is a leading player in hydro-energy and its reputation for high value-add industries in the field of energy management technologies has and continues to be an important factor contributing to the growth of the company.
H55’s Swiss based activities include engineering, research and development, manufacturing, aircraft integration and customer support.
Through Switzerland’s federal engineering schools, ranked as some of the highest educational institutions in Europe, H55 actively collaborates across several research and development projects with the country’s best engineering and scientific minds. Through the support of the Canton of Valais and the City of Sion, the company also benefits from a state-of-the-art airport facilities where its technology is integrated, and flight tested.
Our facility in
Longueuil, Montréal - Canada
As part of its international expansion plans, and in particular being able to respond to the company’s growing North American customer base, H55 has established a fully owned subsidiary in Canada, H55 Inc. Located in the greater Montreal area, H55 Inc collaborates with existing customers for development, customisation, and after sales support. A manufacturing facility will see battery pack production beginning in 2024.
Being present in a major global aerospace cluster offers many opportunities for H55 to collaborate with companies and research institutions that are part of a vibrant aviation ecosystem and who are all committed, as with H55, in demonstrating the advantages of adopting efficient and cost-effective sustainable technologies.
OUR FACILITY IN
Toulouse - France
Located in the heart of one of Europe’s leading aviation hubs, and in close proximity to H55’s growing customer base, the Toulouse subsidiary office will serve as an important strategic base for H55’s operations. The new office includes development, testing, aircraft integration, and customer support functions. H55 France will allow H55 to strengthen its relationships with key partners, industry stakeholders, and customers both in France and across Europe, as well as serve as a key recruitment center to draw on the highly experienced local aerospace talent pool.
Working at H55 is about being part of a passionate team with strong values and exceptional aviation knowledge. H55 is a forward-looking company, developing cutting edge of technology. This environment allows me to learn and grow every day.
Céline
H55 Employee
H55 is the perfect place to act as a “Pilot-in-Command” having the opportunity to work transversally on many issues ranging from elaborating technical solutions to developing prototype systems and seeing them employed in our customer applications. It is a privilege to be part of the H55 family and to bring my aerospace expertise to the team while learning every single day from a team who has an incredible latest technology knowledge.
Florent
H55 Employee
At H55, I have the opportunity to improve my skills in embedded systems while discovering a new application field and learning to work within the certified environment of aviation.
Tristan
H55 Employee