LiquidPiston Overview

  • Year Founded
  • 2003

Year Founded

  • Status
  • Private

  • Employees
  • 46

Employees

  • Latest Deal Type
  • Crowdfunding
  • (Announced)

  • Latest Deal Amount
  • $2.6M

  • Investors
  • 15

LiquidPiston General Information

Description

Manufacturer of advanced rotary internal combustion engines intended for unmanned aerial vehicles and the automotive industry. The company's technology has different thermodynamic cycles, architecture and operations that make engines smaller and lighter than traditional diesel engines, enabling customers to get compact, efficient, low-vibration and multi-fuel capable combustion engines.

Contact Information

Website
www.liquidpiston.com
Ownership Status
Privately Held (backing)
Financing Status
Venture Capital-Backed
Corporate Office
  • 1292a Blue Hills Avenue
  • Bloomfield, CT 06002
  • United States
+1 (860)
Primary Industry
Industrial Supplies and Parts
Other Industries
Other Hardware
Vertical(s)
Manufacturing, Robotics and Drones, Industrials
Corporate Office
  • 1292a Blue Hills Avenue
  • Bloomfield, CT 06002
  • United States
+1 (860)

LiquidPiston Timeline

2023202420252026
Financing RoundCaptured Employee CountEstimated Employee Growth

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LiquidPiston Valuation & Funding

Deal Type Date Amount Raised to Date Post-Val Status Stage
28. Equity Crowdfunding 14-Apr-2026 $2.6M Announced Generating Revenue
27. Later Stage VC 24-Mar-2026 Completed Generating Revenue
26. Later Stage VC 22-Nov-2024 Completed Generating Revenue
25. Equity Crowdfunding 01-Aug-2024 Cancelled Generating Revenue
24. Equity Crowdfunding 31-Oct-2023 Completed Generating Revenue
23. Later Stage VC 24-Oct-2023 Completed Generating Revenue
22. Grant 01-Jan-2022 Completed Generating Revenue
21. Angel (individual) 01-Oct-2021 Completed Generating Revenue
20. Later Stage VC 30-Jun-2021 $5.43M $42.4M Completed Generating Revenue
19. Equity Crowdfunding 25-Jun-2021 $16.8M $37M Completed Generating Revenue
To view LiquidPiston’s complete valuation and funding history, request access »

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LiquidPiston Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Manufacturer of advanced rotary internal combustion engines intended for unmanned aerial vehicles and the automotive ind
Industrial Supplies and Parts
Bloomfield, CT
46 As of 2026

San Carlos, CA
 

Alameda, CA
 
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LiquidPiston Competitors (5)

One of LiquidPiston’s 5 competitors is Pinnacle Engines, a Formerly VC-backed company based in San Carlos, CA.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
Pinnacle Engines Formerly VC-backed San Carlos, CA
Wrightspeed Venture Capital-Backed Alameda, CA
DeltaHawk Angel-Backed Racine, WI
American Traction Solutions Corporation Fort Myers, FL
Rotax Corporation Port, France
You’re viewing 5 of 5 competitors. Get the full list »

LiquidPiston Patents

  • 123

    Total Documents Applications and Grants

  • Total Patents Families

  • 77

    Granted

  • 12

    Pending

  • Expiring in next 12 mo

LiquidPiston Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
EP-4562277-B1 Two-stroke rotary engine with improved inlet and outlet ports Active 06-Sep-2023
EP-4662081-A1 Mobile engine-generator vehicle Pending 10-Mar-2023
US-12612198-B2 Mobile engine-generator vehicle Active 10-Mar-2023
US-20240300681-A1 Mobile engine-generator vehicle Active 10-Mar-2023
US-20260274467-A1 Mobile engine-generator vehicle Pending 10-Mar-2023 B64U50/33
To view LiquidPiston’s complete patent history, request access »

LiquidPiston Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

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LiquidPiston Investors (15)

Investor Name Investor Type Holding Investor Since Participating Rounds
Norwich Capital Partners Growth/Expansion Minority
RSVP Ventures Venture Capital Minority
Angel (individual) Minority
KrowdMentor VC-Backed Company Minority
United States Air Force Government
You’re viewing 5 of 15 investors. Get the full list »

LiquidPiston Investments (1)

LiquidPiston’s most recent deal was a Corporate Asset Purchase with Pinnacle Engines (Physical Assets and Software Licenses). The deal was made on 27-Mar-2023.

Company Name Deal Date Deal Type Deal Size Industry Lead Partner
Pinnacle Engines (Physical Assets and Software Licenses) 27-Mar-2023 Corporate Asset Purchase Buildings and Property
To view LiquidPiston’s complete investments history, request access »

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LiquidPiston FAQs

  • When was LiquidPiston founded?

    LiquidPiston was founded in 2003.

  • Where is LiquidPiston headquartered?

    LiquidPiston is headquartered in Bloomfield, CT.

  • What is the size of LiquidPiston?

    LiquidPiston has 46 total employees.

  • What industry is LiquidPiston in?

    LiquidPiston’s primary industry is Industrial Supplies and Parts.

  • Is LiquidPiston a private or public company?

    LiquidPiston is a Private company.

  • What is the current valuation of LiquidPiston?

    The current valuation of LiquidPiston is .

  • What is LiquidPiston’s current revenue?

    The current revenue for LiquidPiston is .

  • How much funding has LiquidPiston raised over time?

    LiquidPiston has raised $74.4M.

  • Who are LiquidPiston’s investors?

    Norwich Capital Partners, RSVP Ventures, , KrowdMentor, and United States Air Force are 5 of 15 investors who have invested in LiquidPiston.

  • Who are LiquidPiston’s competitors?

    Pinnacle Engines, Wrightspeed, DeltaHawk, American Traction Solutions, and Rotax are competitors of LiquidPiston.

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