What is H55?
H55 is an aerospace technology firm specializing in the design and certification of electric propulsion systems. The company's core value proposition lies in its ability to provide modular, high-performance electric powertrains that replace traditional combustion engines, thereby reducing the carbon footprint of the aviation industry. Their flagship project, the Bristell B23 Energic, serves as a proof-of-concept for the viability of electric pilot training aircraft. By leveraging deep expertise in battery management and power distribution, H55 addresses the urgent demand for sustainable aviation solutions, catering to a global client base that includes major aerospace manufacturers and regional transport operators.
How much funding has H55 raised?
H55 has raised a total of $123.1M across 2 funding rounds:
Series C
$49.6M
Series C
$73.5M
Series C (2023): $49.6M with participation from RTX, ND Capital, and Tippet Venture Partners
Series C (2024): $73.5M led by Investissement Quebec
Key Investors in H55
Investissement Quebec
A government-backed investment corporation focused on fostering economic development and job creation through strategic equity investments and financial solutions.
RTX
A global aerospace and defense leader providing advanced systems, including electric power management and engine components for commercial and military aviation.
ND Capital
A Swiss-based financial firm providing targeted capital and investment support to foster growth within specialized industrial and technology sectors.
What's next for H55?
With the infusion of this latest capital, H55 is poised to scale its manufacturing capabilities and deepen its certification efforts for larger aircraft segments. The strategic roadmap involves expanding the reach of its propulsion technology into regional transport, a move that requires rigorous safety testing and regulatory alignment. As the aviation industry faces increasing pressure to decarbonize, H55's focus on modular, adaptable technology provides a competitive edge in the race to electrify short-haul flights. Future growth will likely center on deepening partnerships with global OEMs to integrate H55 systems into next-generation airframes, ensuring the company remains at the forefront of the clean energy transition in aerospace.
See full H55 company page
