Fundraising Fox

LiquidPiston

Bloomfield, US · Delaware corporation · 2 known investors

LiquidPiston develops compact rotary internal combustion engines based on a patented thermodynamic cycle, offering improvements in efficiency, weight, size, vibration, and noise, with engines scalable from 1HP to over 1000HP. It focuses on military and aerospace propulsion and power generation, with plans to serve industrial, marine, UAV, urban mobility, and automotive markets.</parameter> <parameter name="hq_city">Bloomfield

Deep TechDefense TechEnergyHardwareMobility & Transportation

Founders & leadership

AS
Alexander ShkolnikCo-founder
NS
Nikolay ShkolnikCo-founder
JN
James NorrodExecutive

Board

WF
William FrezzaBoard director
PS
Per SunebyBoard director
DP
David PattersonBoard director
DH
David HabigerBoard director
SK
Semyon KoganBoard director

Investors · 2

Adams Capital Management✓ verifiedPittsburgh · $1M – $5M
Colle Capital PartnersNew York · $500K – $2M

Reported raises · per SEC filings

Form D private placements

$4.2M disclosed across 11 of 12 rounds · 2015–2026

▶$500KraisedMar 2026 · 1 investors · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Per SunebyExecutive Officer, Director
  • Alexander ShkolnikExecutive Officer, Director
  • Nikolay ShkolnikExecutive Officer, Director
  • Vincenzo PerroneExecutive Officer
  • Peter HartmanExecutive Officer
Offering amount
$500K
Amount sold
$500K
First sale
Mar 2026
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$25KraisedNov 2024 · 1 investors · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Per SunebyDirector
  • Alexander ShkolnikExecutive Officer, Director
  • Nikolay ShkolnikExecutive Officer, Director
Offering amount
$230K
Amount sold
$25K
First sale
Nov 2024
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$50KraisedOct 2023 · 1 investors · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Per SunebyDirector
  • Nikolay ShkolnikExecutive Officer, Director
  • Alexander ShkolnikExecutive Officer, Director
Offering amount
$2.3M
Amount sold
$50K
Minimum investment
$25K
First sale
Jun 2023
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$1MofferedJun 2021 · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Alexander ShkolnikExecutive Officer, Director
  • Nikolay ShkolnikExecutive Officer, Director
  • Per SunebyDirector
Offering amount
$1M
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$126.9KraisedMar 2020 · 5 investors · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Nikolay ShkolnikDirector
  • Alexander ShkolnikExecutive Officer, Director
  • Per SunebyDirector
Offering amount
$750K
Amount sold
$126.9K
First sale
Feb 2020
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$75KraisedSep 2019 · 2 investors · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Alexander ShkolnikExecutive Officer, Director
  • Nikolay ShkolnikDirector
  • Per SunebyDirector
Offering amount
$500K
Amount sold
$75K
First sale
Aug 2019
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$250KraisedJun 2019 · 1 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Nikolay ShkolnikDirector
  • Per SunebyDirector
  • Alexander ShkolnikExecutive Officer, Director
Offering amount
$250K
Amount sold
$250K
First sale
Mar 2019
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$299.1KraisedJan 2019 · 43 investors · Other Energy
Rule 506(c)
Officers, directors & promoters on the filing
  • Peter SunebyDirector
  • Nikolay ShkolnikDirector
  • Alexander ShkolnikExecutive Officer, Director
  • Tony TetherDirector
Offering amount
$299.1K
Amount sold
$299.1K
Sales commissions
$9K
Placement agents
WeFunder Portal LLC
First sale
Jul 2017
Incorporated
Corporation, Delaware
Federal exemptions
06c
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 1

by search overlap
Car Throttle39 shared keywordsCar Throttle is an automotive media brand publishing news, features, reviews, and videos about cars, motorsport, driving games, and garage/workshop products for car enthusiasts. It covers topics ranging from Formula 1 and manufacturer releases to used-car buying guides and product recommendations.

Companies competing with LiquidPiston for the same Google search keywords, organic and paid, via search-intersection analysis.

Non-dilutive funding · 8 SBIR/STTR awards

Federal grants — no equity taken
AgencyPhaseYearAmount
U.S. ArmyArmyPhase II2022$441.1K
U.S. Air ForceAir ForcePhase I2022$50K
U.S. Air ForceAir ForcePhase II2021$750K
U.S. Air ForceAir ForcePhase II2021$748.6K
U.S. Air ForceAir ForcePhase ISTTR2021$149.9K
U.S. ArmyArmyPhase I2020$116.5K
U.S. ArmyArmyPhase I2020$100K
U.S. ArmyArmyPhase I2006$70K

Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.

In the news

LiquidPiston | StartEnginestartengine.com · Jul 2026LiquidPiston Launches Reg CF Funding Round to Unlock up to $7M in U.S. Army Funding via SBIR CATALYST Awardfinance.yahoo.com · Apr 2026LiquidPiston on Dealmaker Securities 2024 - Kingscrowdkingscrowd.com · Aug 2024LiquidPiston Raises $30 Million in Reg A+ Crowdfunding Roundglobenewswire.com · Oct 2023LiquidPiston Announces Closing Date for Crowdfunding Roundfinance.yahoo.com · Sep 2023LiquidPiston raises $20M in crowdfunding ahead of Oct. 24 deadlinehartfordbusiness.com · Sep 2023

Frequently asked questions

What does LiquidPiston do?
LiquidPiston develops compact rotary internal combustion engines based on a patented thermodynamic cycle, offering improvements in efficiency, weight, size, vibration, and noise, with engines scalable from 1HP to over 1000HP. It focuses on military and aerospace propulsion and power generation, with plans to serve industrial, marine, UAV, urban mobility, and automotive markets.</parameter> <parameter name="hq_city">Bloomfield
Who founded LiquidPiston?
LiquidPiston was founded by Alexander Shkolnik, Nikolay Shkolnik.
Who are LiquidPiston's investors?
LiquidPiston's investors include Adams Capital Management, Colle Capital Partners.
How much funding has LiquidPiston raised?
LiquidPiston has disclosed $4.2M raised across 11 of its 12 known rounds.
Where is LiquidPiston headquartered?
LiquidPiston is headquartered in Bloomfield, US.