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Convertible Note Energy Companies

Explore 49 energy startups that raised convertible note funding. Access verified founder contact information and fundraising data.

Total Companies
49
Total Funding
$225.1M
Avg Funding
$9.0M
Cities
24

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Calgary, Canada
$3.0M
raised

Summit Nanotech is a B2B company that deploys patented direct lithium extraction technology to create lithium economically and sustainably.

Sep 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

East Greenwich, United States
$5.0M
raised

VoltServer develops innovative power distribution products based on the company's patented Digital Electricity technology.

Jul 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

Saint-denis, France

HysetCo is a hydrogen mobility start-up that helps its clients shift to zero-emission transportation.

Apr 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

Binghamton, United States
$750K
raised

Bridge Green Upcycle is a clean energy company that specializes in lithium-ion battery upcycling technology solutions.

Apr 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$62K
raised

Standard Gas produce a high quality synthetic gas from a wide range of non recyclable waste feedstock.

Apr 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Monrovia, United States
$4.2M
raised

LiNova Energy is a developer of ultra-high energy density batteries.

Mar 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

Longmont, United States
$500K
raised

Energy and Space, Research and Development

Feb 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

Solon, United States
$20.0M
raised

Leading the ESG revolution by fermenting award-winning, green ingredients to the biggest global challenges.

Dec 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Reno, United States
$95K
raised

Hyper-efficient Air-Conditioning Hardware Company

Nov 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Tampere, Finland
$1.2M
raised

E-Heat builds and operates data centers that recycle waste heat generated by server equipment.

Sep 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Alkmaar, The Netherlands
$407K
raised

WePositive.Energy is a platform dedicated to creating energy-positive communities through peer-to-peer energy

Aug 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Zürich, Switzerland
$20.0M
raised

Candi is a solar company that provides small-scale commercial and industrial rooftop solar battery solutions.

Jul 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Ithaca, United States
$75K
raised

Innovating technology to make everyday fuels and products from CO2 emissions, mitigating climate change and building a sustainable future.

Apr 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Somerset, United States
$5.0M
raised

Impact-focused multi-state operator: energy production, capital efficiency, automation, microgrid, solar arrays, CHP, sustainability

Jan 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Scottsdale, United States
$4.5M
raised

NarrativeWave is the AI Automation & Analytics platform for Energy companies focused on impacting operations.

Jan 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Boston, United States

Found Energy is a renewable energy company engaging in turning aluminum into a renewable energy carrier.

Dec 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Palo Alto, United States

Noon Energy develops a flow battery technology that enables economical long-duration energy storage.

Dec 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Bogotá, Colombia
$8.5M
raised

Bia Energy is transforming LatAm’s power sector with smart meters and a digital platform for real-time control, savings, and sustainability.

Nov 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Grindsted, Denmark
$217K
raised

An AI-driven optimization and prediction system for the future reliable district energy and a flexible grid.

Nov 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Bellevue, United States
$329K
raised

FlexCharging is an electric vehicle data analytics and demand flexibility provider.

Aug 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Anchorage, United States
$166K
raised

60Hertz Energy is a provider of offline-first maintenance software solutions for teams and assets.

Jul 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$300K
raised

Energy optimization for data centers. Revenue optimization for power generation.

Jul 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Harwell, United Kingdom
$800K
raised

Spottitt offers satellite-derived risk analytics for the energy, environment and infrastructure sectors.

Jun 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Dundee, United Kingdom
$292K
raised

Heero Technologies is a self-sustaining energy platform that strives to make net zero homes a possibility.

May 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

Calgary, Canada
$149.7M
raised

Entropy focuses on commercializing energy‐transition technologies.

Dec 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

Showing 1 to 25 of 49 companies

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