Company Overview
About H55
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.
Business Model & Competitive Advantage
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.
Competitive Landscape 2025–2026
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.
The H55 Story
Founders
Company Timeline
Major milestones in H55's journey
Leadership Team
Meet the leaders behind H55
André Borschberg
Co-founder and former pilot of Solar Impulse, which completed the first round-the-world solar flight. Brings decades of aviation expertise and entrepreneurial vision to electric aviation.
Martin Larose
Leads H55's operations and commercial strategy, overseeing the company's expansion in North America and Europe while advancing certification milestones.
Sébastien Demont
Former Solar Impulse senior leader, responsible for technical development and engineering of H55's electric propulsion systems.
Gregory Blatt
Former Solar Impulse team member, leads H55's marketing strategy and partnership development with aviation manufacturers and operators.
Open Positions
Reddit Discussions
Key Differentiators
Emerging Innovator
H55 is an emerging player bringing innovative solutions to the Transportation market.
Frequently Asked Questions
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