Long Beach, CA · Founded 2016 · Privately Held (backing)
Developer of hybrid-electric engines designed to improve fuel efficiency and reduce operating costs in aircraft. Ampaire is based in Long Beach, CA and was founded in 2016. It was valued at $137 million at its later-stage round in Jan 2026, the last priced event on record. It has raised $74.3 million across 1 recorded round; the latest was a $2.6 million seed round in Jul 2018.
PMV mark · valuation
$137.0M
Oct 2026
Priced at
its later-stage round
Jan 2026
Total raised
$74.3M
Last round
Seed Round
Jul 2018
No prints on record
No secondary trades in Ampaire shares have been recorded yet. When market activity lands it appears here as monthly aggregates and, for platform-recorded trades, dated prints.
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Secondary marks are indicative month-end price levels observed across secondary-market trading venues — a level, not a trade — and are the market input to the PrivateMarketView mark. Private share prices aren’t published anywhere. Aggregate figures combine multiple reporting channels — direct participant reports, platform transactions, third-party market intelligence — at monthly granularity. Individually dated prints are a Pro feature and are shown only for transactions recorded on our own platform. Third-party-reported trades are never republished individually, at any tier. Verified prints (✓) have been confirmed against a second source. Prints marked SPV or Forward reflect the structure’s pricing, which can differ from direct share transfers of Ampaire stock.
