LiquidPiston
PrivateLast Round
Seed Round
Mar 24, 2026
Est. Valuation
$214M
Total Funding Raised
$61.61M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
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
Drones & UAVs, Energy Storage, Defense Tech
Business Model
B2G
Customer Profile
Government Contracts, Hardware Sales, Services & Consulting
AI Layer
Non-AI
Keywords
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 |
|---|---|---|
| Advanced Innovative Engineering (UK) Ltd | 82% | |
| General Atomics | 81% | |
| Cobra Aero, LLC | 78% |
LiquidPiston Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed Round | Mar 24, 2026 | ||||
| Crowdfunding | Oct 31, 2023 | ||||
| Crowdfunding | Jun 25, 2021 | ||||
| Crowdfunding | Mar 31, 2020 | ||||
| Convertible Debt | Mar 16, 2019 | ||||
Series C | Jul 22, 2013 |
Key People
Founding team and executive leadership
LiquidPiston Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Northwater Capital Management | Series C |
| Adams Capital Management | Seed, Series B, Series C |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 27, 2026
Grew 16% QoQ, from 45 to 52 employees.
- Mar 24, 2026
$500K Seed Round raised.
Recent news
Latest coverage and updates
- receives_financingSep 3, 2026
LiquidPiston, Inc. received financing of $2.7M in Regulation CF funding round on Sep 3rd '26.
- attends_eventAug 27, 2026
LiquidPiston, Inc. attended event 2026 Turbine Engine Technology Symposium on Aug 31st '26.
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.
Request accessFrequently 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 with no public stock price. No recent secondary market data is available.
How much is LiquidPiston worth (valuation)?
LiquidPiston's valuation is estimated at $214.0M 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. Visit https://www.caplight.com to learn more.
When was LiquidPiston's last funding round?
LiquidPiston's most recent funding round was Seed Round on October 31, 2023.
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 for private companies. Visit https://www.caplight.com to monitor LiquidPiston's secondary market activity and sign up for updates.