Key facts
- Ampaire’s last known valuation is $137.0M (Jan 2026).
- It has raised $74.3M across 1 recorded rounds; the latest was Seed Round ($2.6M) in Jul 2018.
- Notable investors include Techstars, Impact Assets, Climate Capital, Astir Ventures, U.S. Department of Energy — 29 tracked in total.
- Ampaire has filed 1 Form D with the SEC, most recently Aug 2018 ($2.6M sold to 28 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 1 rounds
- ·The complete investor list — 29 names
- ·Watchlist + deal alerts for Ampaire
Funding rounds
1 roundsAbout Ampaire
Developer of hybrid-electric engines designed to improve fuel efficiency and reduce operating costs in aircraft. The company offers custom propulsion systems and onboard energy technology scalable across different aircraft sizes, enabling aviation businesses to lower operational expenses and reduce environmental impact.
- Sector
- Business Products and Services (B2B)
- HQ
- Long Beach, CA, United States
- Founded
- 2016
- Employees
- 25
- Website
- ampaire.com/
- Ownership
- Privately Held (backing)
Ampaire doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Ampaire shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Ampaire in its N-PORT filings yet. We sweep new filings monthly.