Hybrid-Electric pioneers
Aerospace & Defence
(Ascendance)
We’re taking aviation to new heights
A new era of aviation requires a new generation of propulsion.
Defence modernization, European sovereignty, and aviation decarbonization are reshaping aerospace at an unprecedented pace. Across every segment of the market, the demand is growing for aircraft that can fly farther, operate more efficiently, reduce emissions, and deliver greater operational resilience.
Ascendance was founded on a simple conviction: hybrid-electric technology is the most credible pathway to meet these challenges.
We design and industrialize hybrid-electric propulsion systems that deliver the endurance, efficiency and resilience required by tomorrow's aircraft.
From next-generation aircraft to drones and future air mobility platforms, our technologies enable a new category of aerospace capabilities.
Ascendance is now building Europe's hybrid-electric champion for aerospace and defence.
Hybrid-electric is not a transition. It is the future of aviation.
(Our technology)
Decarbonizing air transport with hybrid electric propulsion technology and sustainable aircraft.
High performance solutions to drive progress forward
Our technology has the potential to enable and boost the energy transition in aviation to reach carbon neutrality by 2050
Lead the environmental charge with reduced noise, reduced CO2 emissions and reduced costs.
(sterna’s carbon emission reduction)*
Up to
-40%
(atea’s carbon emission reduction)*
Up to
-80%
*compared to conventional aicrafts
One Hybrid-Electric Platform
Multiple Applications
STERNA enables higher-endurance, lower-emission hybrid-electric propulsion for civil and defence aviation
Aviation
Lower emissions, lower costs, greater efficiency
Defence
Longer endurance, lower signature, greater resilience
ATEA Aircraft
Our VTOL aircraft powered by STERNA
(our Expertise)
Hybrid electric pioneers since the start, in 2018.
Built on true aircraft maker heritage
Hybrid Architecture Expertise
Optimized weight, seamless fit
Company
Ascendance joins Toulouse Pioneers Collective
Between heritage and future: Ascendance becomes a member of Toulouse Pioneers and a partner of L'Envol des Pionniers
Events
A BIG day at BPI France's BIG 2025
From stage to roundtable to tv set, our CEO Jean-Christophe Lambert carried Ascendance’s vision of sustainable aviation throughout the BIG 2025
Company
Ascendance expands its footprint in Asia
Ascendance signed MoUs with Pen Aviation and Pahang Aerospace City, opening new opportunities for hybrid-electric aviation in Southeast Asia.