LiquidPiston
PrivateLast Round
Crowdfunding
Oct 15, 2026
Est. Valuation
$301.26M
Total Funding Raised
$132.49M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
LiquidPiston operates in Frontier & Industrial Tech and is based in Connecticut. Its latest recorded funding round was a Crowdfunding round in October 2026.
LiquidPiston is an industrial supplies and parts company that develops compact, powerful, quiet, efficient, low-vibration, and multi-fuel capable rotary combustion engines.
Sector
Frontier & Industrial Tech
Verticals
Defense Tech, Aviation & Drones, Computing Hardware, Alternative Fuels
Business Model
B2G
Customer Profile
Government Contracts, Services & Consulting, Hardware Sales
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
LiquidPiston Comparables
Compare LiquidPiston with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Northwest UAV | 86% | |
| Advanced Innovative Engineering (UK) Ltd | 83% | |
| Orbital Corporation Ltd | 80% |
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LiquidPiston Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Crowdfunding | Oct 15, 2026 | ||||
| Seed Round | Mar 9, 2026 | ||||
| Early Funding | Nov 18, 2024 | ||||
| Crowdfunding | Oct 10, 2024 | ||||
| Crowdfunding | Oct 31, 2023 | ||||
Grant | Oct 5, 2023 |
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Key People
Founding team and executive leadership
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LiquidPiston Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Northwater Capital Management | Series C |
| Adams Capital Management | Seed, Series B, Series C |
| Defense Advanced Research Projects Agency | Grant |
| AFVentures | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 15, 2026
$4M raised in a crowdfunding round.
- Sep 12, 2026
Monthly visitors increased 381% MoM, reaching 39.5K.
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Recent news
Latest coverage and updates
- receives_financingSep 3, 2026
As of Sep '26, LiquidPiston, Inc. has raised more than $2.7M in its Regulation CF round, which remains open to individual investors through Oct 15th '26 and supports auxiliary power system development and testing for Next Generation Command and Control.
- attends_eventAug 27, 2026
LiquidPiston, Inc. plans to exhibit at the 2026 Turbine Engine Technology Symposium in Ohio from Aug 31st to Sep 3rd '26, with representatives available at Booth #410 to discuss its defense-focused hybrid power platforms and rotary X-Engines.
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LiquidPiston Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about LiquidPiston's valuation, stock price, and market status.
Is LiquidPiston a public or private company?
LiquidPiston is a private company.
What is the current stock price of LiquidPiston?
LiquidPiston is a private company, so its shares have no public market price. Caplight tracks LiquidPiston's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is LiquidPiston worth (valuation)?
LiquidPiston's valuation is estimated at $301.3M based on funding round data.
Can I buy LiquidPiston stock?
LiquidPiston shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was LiquidPiston's last funding round?
LiquidPiston's most recent funding round was Crowdfunding on October 15, 2026.
Who are the main investors in LiquidPiston?
Key investors in LiquidPiston include Northwater Capital Management, Adams Capital Management.
Will LiquidPiston IPO soon?
No public IPO plans have been announced for LiquidPiston.
How can I track LiquidPiston secondary market activity?
Caplight tracks bids, offers, and trades in LiquidPiston's shares on secondary markets.