Ampaire develops hybrid-electric retrofit systems that combine electric propulsion with conventional engines for existing commercial aircraft to lower fuel burn, reduce emissions and cut airline operating costs. The company has demonstrated its technology in flight and is pursuing product certification and scaled production. Ampaire plans to use the new Series B proceeds to accelerate commercialisation, build supply chains, expand manufacturing and scale operating capabilities. It has engaged with airlines and industry partners, including participation in an IAG-run accelerator where it explored hybrid-electric auxiliary power unit (APU) solutions. Investors in the latest round include IAGi Ventures, Alaska Airlines and DiamondStream Partners. The company positions its offerings as practical retrofit options for aircraft already in service.

Total raised

$34M

Funding rounds

9

Latest round

Series B

Latest activity

Aug 2026