# H55 **Source:** https://geo.sig.ai/brands/h55 **Vertical:** Transportation **Subcategory:** General **Tier:** Emerging **Website:** h55.ch **Last Updated:** 2026-04-14 ## Summary Sion Switzerland electric aviation propulsion from Solar Impulse founders; $74M+ Series C (Quebec Government) targeting EASA first-certified aviation battery pack with B23 Energic completing 192-flight Across America tour at $7/flight. ## Company Overview H55 is a Sion, Switzerland-based electric aviation propulsion technology company — backed with $74+ million in Series C funding (July 2024) with investors including the Government of Quebec — developing and manufacturing certified battery packs, electric motors, motor controllers, and energy management systems for electric and hybrid aircraft, targeting EASA certification for the world's first certified aviation battery pack. H55 co-developed the B23 Energic (a fully electric two-seater aircraft with Czech manufacturer BRM Aero) that completed a landmark "Across America" tour in 2024 with 192 all-electric passenger flights across 8 states, demonstrating recharge costs averaging $7 per flight and 1+ hour endurance. In 2025, Fast Company named H55 among the Most Innovative Companies for its leadership at the intersection of electric propulsion certification and sustainable aviation. H55 has subsidiaries in Montreal, Canada and Toulouse, France. Founded 2017 by the former Solar Impulse senior leadership team: André Borschberg (CEO, Solar Impulse pilot), Sébastien Demont, and Gregory Blatt. H55's electric propulsion certification strategy addresses the regulatory bottleneck that has slowed electric aviation adoption: most electric aircraft programs have been unable to achieve EASA (European Union Aviation Safety Agency) or FAA certification because aviation battery packs for flight-critical applications require thermal runaway containment, electrical isolation, cell monitoring, and energy management capabilities that satisfy airworthiness standards designed for conventional aircraft systems — with the certification process requiring years of testing documentation that small aviation battery companies lack the resources to complete. H55's certification-first approach (dedicating engineering resources to EASA CS-23 airworthiness compliance for its battery pack as the primary product, rather than building a complete aircraft) creates the certifiable building block that aircraft manufacturers can integrate into their designs with type-certificate confidence. The B23 Energic partnership (BRM Aero providing the CS-23 certified airframe into which H55's battery system integrates) demonstrates the component-level certification strategy in a real product. In 2025, H55 competes in the electric aircraft propulsion, aviation battery systems, and sustainable aviation technology market with Pipistrel (Textron subsidiary, EASA-certified electric aircraft), Ampaire (hybrid-electric retrofit), and magniX (electric aircraft motors, Eviation partnership) for aircraft manufacturer electric propulsion system integration contracts and aviation training operator electric aircraft transition programs. The $74M+ Series C with Quebec Government backing enables H55 to complete the EASA battery certification process and begin volume production for the CS-23 category aircraft market (training, short-hop regional, and UAM applications). The $7 per flight electricity cost versus $80-120 per flight for aviation fuel creates the total cost of ownership argument for flight training operators that represent the near-term commercial market for certified electric aircraft. The 2025 strategy focuses on completing EASA battery pack certification, growing the B23 Energic flight training operator adoption in Europe and North America, and developing the hybrid-electric system for longer-range CS-23 aircraft applications. ## Frequently Asked Questions ### What is H55? H55 is a Swiss manufacturer of certified electric propulsion systems for aviation, founded in 2017 by the former senior leadership team of Solar Impulse. The company develops battery packs, electric motors, motor controllers, and energy management systems specifically designed to enable sustainable electric flight. ### Who are H55's customers and target market? H55 serves aircraft manufacturers like BRM Aero, flight training organizations, regional airlines, and aviation OEMs including Pratt & Whitney Canada, CAE, and Harbour Air. The target market includes pilot training schools seeking lower operating costs and aviation companies committed to sustainability. ### When was H55 founded? H55 was founded in 2017 in Sion, Switzerland by André Borschberg, Sébastien Demont, and Gregory Blatt, who were part of the Solar Impulse senior leadership team that completed the first round-the-world solar flight. ### Where is H55 based? H55 is headquartered in Sion, Switzerland in the heart of the Swiss Alps, with fully-owned subsidiaries in Montreal, Canada and Toulouse, France. The Montreal facility serves as the primary hub for North American manufacturing. ### How much funding has H55 raised? H55 has raised CHF 65 million (approximately $74 million USD) in Series C funding as of July 2024, with investors including the Government of Quebec through Investissement Québec. This follows earlier seed and Series A funding rounds. ### What makes H55 different from competitors? H55 is the only company achieving EASA certification for aviation battery packs, motors, and controllers, making it the leader in certified electric propulsion. Its heritage from Solar Impulse provides unmatched expertise in electric flight, and its complete system approach integrates batteries, motors, and energy management for turnkey solutions. ### Who are H55's main competitors? Competitors in electric aviation include magniX (electric propulsion systems), Heart Aerospace (electric regional aircraft), Ampaire (hybrid-electric aircraft), and Pipistrel (electric training aircraft). H55 differentiates through its focus on certification and complete system integration. ### How can I contact H55? H55 can be contacted through their website at h55.ch, with offices in Sion, Switzerland (headquarters), Montreal, Canada, and Toulouse, France. They work with aircraft manufacturers, training organizations, and aviation companies interested in electric propulsion solutions. ### Is H55 hiring? H55 is expanding its team across Switzerland, Canada, and France as it scales production and certification activities. Career opportunities are available in engineering, certification, manufacturing, and business development. Check their website and LinkedIn for current openings. ### What's the latest news about H55? In January 2025, H55 was recognized by Fast Company as one of the Most Innovative Companies of 2025. The company recently partnered with Aerovolt UK for charging infrastructure and Elfly Group for Nordic distribution, completed its Across America tour with 192 electric flights, and is on track to achieve the world's first EASA-certified aviation battery pack. ### What is H55's market position? H55 is a pioneer and market leader in certified electric aviation propulsion, being the first company to achieve EASA compliance checklist acceptance for aviation battery packs. The company is positioned to supply electric propulsion systems to aircraft manufacturers worldwide as electric aviation adoption accelerates. ### What are H55's future plans? H55 plans to complete EASA certification of its battery pack by end of 2024, with battery packs ready for CS-23 aircraft integration in early 2025. The company is scaling manufacturing at its Montreal facility, expanding partnerships across Europe and North America, and beginning B23 Energic aircraft deliveries in 2026. Long-term goals include developing propulsion systems for larger regional aircraft. ## Tags b2b, transportation, ev, hardware, startup, supply-chain --- *Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*