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Venture - Series Unknown Clean Energy Companies

Explore 111 clean energy startups that raised venture - series unknown funding. Access verified founder contact information and fundraising data.

Total Companies
111
Total Funding
$1.8B
Avg Funding
$73.6M
Cities
19

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Hayward, United States
$13.0M
raised

Voya Energy develops metal-fueled energy systems that generate electricity using recycled aluminum and compact power-generation equipment.

Oct 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

San Diego, United States
$2.0M
raised

Primrose Bio is a biotechnology company that focuses on discovery, development, and manufacturing of new molecules.

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Calgary, Canada
$100.0M
raised

Kanin Energy develops waste heat to power and other decarbonization projects for heavy industry to reduce their climate footprint

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Calgary, Canada
$100.0M
raised

Kanin Energy develops waste heat to power and other decarbonization projects for heavy industry to reduce their climate footprint

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Calgary, Canada
$100.0M
raised

Kanin Energy develops waste heat to power and other decarbonization projects for heavy industry to reduce their climate footprint

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Calgary, Canada
$100.0M
raised

Kanin Energy develops waste heat to power and other decarbonization projects for heavy industry to reduce their climate footprint

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Brooklyn, United States
$1.1M
raised

ItsElectric is electric vehicle charging purpose-built for drivers who park their cars on city streets.

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Tulsa, United States
$299K
raised

Exaeris Water Innovations utilizes patented technology to provide a consistent and reliable source of water wherever it's needed.

Sep 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Washington, United States
$3.6M
raised

Zeno is developing next-generation radioisotope power systems that generate carbon-free, resilient power for decades.

Aug 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Cambridge, United States
$1.0B
raised

Commonwealth Fusion Systems designs and develops commercial fusion energy systems to produce clean energy.

Jul 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Kastrup, Denmark
$380.0M
raised

Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.

Jul 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Espoo, Finland
$7.4M
raised

We develop next generation AI robotic factories that manufacture low-carbon concrete products for infrastructure projects.

Jul 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Lausanne, Switzerland

SmartHelio is software to prevent downtime in a solar plant

Jun 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Denver, United States

Peak Energy is a pioneering firm that is industrializing sodium-ion to expedite the shift to renewable energy.

Jun 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Munich, Germany

Vaeridion develops electric microliners for zero-emission regional air travel.

Jun 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
No credit card required
$1.7M
raised

Northern Smilodon Energy offers services like access to the Montney play, light oil resources, sourcing, and securing of oil and gas assets.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Carlsbad, United States
$6.5M
raised

The operating system for advanced battery chemistries

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Boulder, United States

Electra is a a clean iron company that uses a low-temperature, electrochemical-hydrometallurgical system to refine iron ore.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Newark, United States
$3.9M
raised

NovaSolix develops an energy technology designed to generate a clean and low-cost form of energy.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Symbium's Citizen's Dashboard incorporates zoning & building regulations so that anyone can obtain a permit in seconds!

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Saint-sulpice, Switzerland
$19.2M
raised

Daphne Technology is a developer of a sustainable, technically advanced and cost efficient air emissions control system.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

San Diego, United States

EFG is an innovative change in the portable generator and independent energy market converting hydrogen-on-demand to electricity.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$700K
raised

Lumen Energy focuses on helping building owners save money with clean energy.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Watertown, United States

Via Separations is a technology company that develops membrane materials for modular and resource separation solutions.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Heat Geek is a designer and installer of energy systems.

Mar 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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