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A key project for H55 is the Bristell Energic, a two-seat electric training aircraft manufactured by BRM Aero and equipped with H55 propulsion systems (source: fai.org). The aircraft was unveiled in Sion and is distinguished by its clean, quiet, and cost-efficient design, offering a flight duration of 1.5 hours with sufficient reserve for training operations (source: fai.org). By 2025, the Bristell B23 Energic completed over 50 demonstration flights at Palo Alto Airport and secured multiple purchase agreements, resulting in sold-out production for the first two years (source: h55.ch). Additionally, the company conducted a US-wide demonstration tour to showcase the aircraft at flight schools, universities, manufacturers, military academies, and aviation exhibitions (source: prnewswire.com).

Over the past two years, H55 has been recognized on TIME's list of the world's top 250 GreenTech companies for 2025, selected from over 8,000 firms (source: prnewswire.com). In 2024, the company closed a Series C funding round of $72.9 million USD, including participation from the Quebec government (source: esgtoday.com). In 2025, H55 announced the sell-out of the first two production years of the Bristell B23 Energic (source: h55.ch). Concurrently, the company is expanding its North American operations with a production facility at Saint-Hubert Airport and a Canadian subsidiary (source: h55.ch).

H55 offers a variety of positions in embedded software, testing, mechanical design, assembly, finance, and IT, with locations in Sion, Lausanne, and Longueuil, Canada (source: h55.applytojob.com). Requirements for technical roles include experience with plastics and composite materials, CAD skills, and knowledge of aviation certification standards such as EASA CS-23 and FAA Part 23 (source: h55.applytojob.com). The company culture is characterized by a strong focus on certification, technical depth, and integration into aviation, with safety and regulatory compliance at its core (source: juliusbaer.com).