ZeroAvia is an Everett-based sustainable aviation startup building hydrogen-electric airplane engines designed to eliminate carbon emissions from regional flight. The company’s core product replaces conventional jet fuel propulsion with hydrogen fuel cell powertrains. Its engineering roadmap focuses on certifying these engines for commercial use in small regional aircraft. ZeroAvia continues to refine its technology through ground and flight testing programs. The startup recently secured additional capital to support these efforts. Management stated that the new funds will extend the firm’s operating runway for roughly two years, underscoring the importance of continued investment as it advances toward commercialization.

Total raised

$212M

Funding rounds

8

Latest round

Grant

Latest activity

Nov 2025