Ampaire
PrivateLast Round
Series B
Aug 18, 2026
Total Funding Raised
$34.61M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Ampaire is an aerospace company that develops hybrid-electric propulsion systems and retrofits existing aircraft to improve fuel efficiency and reduce environmental impact.
Sector
Frontier & Industrial Tech
Verticals
Aviation & Drones, Clean Transportation, Energy Storage
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Ampaire Comparables
Compare Ampaire with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Ascendance Flight Technologies | 82% | |
| Wright Electric | 80% | |
| ZeroAvia | 79% | |
Ampaire Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Aug 18, 2026 | ||||
| Strategic | Jan 8, 2026 | ||||
| Grant | Feb 17, 2023 | ||||
| Grant | Feb 24, 2020 | ||||
| Series A | Apr 10, 2019 | ||||
Accelerator | Feb 28, 2019 |
Key People
Founding team and executive leadership
Ampaire Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Elemental Impact | Accelerator, Angel, Series B |
| Techstars | Accelerator, Series B |
| Gaingels | Series B |
| Climate Capital | Series B |
| Venn10 Capital | Series B |
| Techstars Ventures | Series B |
| Autodesk Foundation | Series B |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 18, 2026
$19M round led by DiamondStream Partners.
- Jan 8, 2026
Hawaiian Airlines participated in the round.
Ampaire Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Frequently Asked Questions
Common questions about Ampaire's valuation, stock price, and market status.