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Ampaire raises $19M in Series B funding led by DiamondStream Partners, supported by IAG and Alaska Airlines, to advance its hybrid-electric aircraft technology.

PRIVATEAug 19, 2026

Amount Raised

$19 Million

Round Type

Series B

CaliforniaInformation TechnologyAutomotiveAerospace

Investors

Los Angeles Cleantech Incubator Impact FundDiamondStream PartnersInternational Air GroupAlaska AirlinesForward VenturesTechstars VenturesAutodesk Foundation Impact FundDiamond Stream Partners

Description

Californian startup Ampaire has secured $19 million in Series B funding to enhance its hybrid-electric aircraft development. The funds will accelerate the commercial readiness of its AMP-H570 propulsion system, retrofitted into Cessna Grand Caravan aircraft. Ampaire is also participating in the eVTOL Integration Pilot Program to further advance air mobility technologies. Additionally, the startup is exploring hybrid-electric technology applications for ground power units used by aircraft.

Company Information

Company

Ampaire

Location

California, United States

About

Ampaire is a Californian startup focused on developing hybrid-electric aircraft. The company aims to improve fuel efficiency and reduce emissions by retrofitting existing aircraft with hybrid technology. Their hybrid aircraft, referred to as the 'Eco Caravan', is based on the Cessna Grand Caravan. Ampaire is also involved in developing applications of hybrid-electric technology for aircraft ground power units.

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Related People

3 contacts
Verified contactsEd, Chief Technology Officer (CTO) and VP E… hidden hiddenSee plans and pricing
Predictive Intelligence
Strategic

ML-powered predictions for Ampaire's next move

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Funding Insights

What this usually means
Timeline to next round
Series B companies typically work for 15-20 months before raising new capital
Growth expectations
Series B companies are expected to scale rapidly and expand market reach

Ampaire raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.