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Venture - Series Unknown Energy Companies

Explore 536 energy startups that raised venture - series unknown funding. Access verified founder contact information and fundraising data.

Total Companies
536
Total Funding
$275.6M
Avg Funding
$11.0M
Cities
21

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Woodbridge, United States
$23.0M
raised

P2 Science produces bio-based chemicals from renewable materials for consumer and industrial use.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$52.6M
raised

American Terawatt is a developer of scalable energy infrastructure powering AI training clusters efficiently.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Mils, Austria
$23.6M
raised

Reps is a company that converts vehicle motion in road infrastructure into electricity.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Aix-en-provence, France
$19.7M
raised

Otrera provides customizable solutions for delivering low-carbon energy to industries and local communities.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Bellville, United States
$20.4M
raised

TerraFlow Energy provides flow battery technology and energy storage solutions for data centers and critical infrastructure.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Chicago, United States
$10.0M
raised

Switched Source is a manufacturing company that develops medium-voltage devices to enhance utility operations through automation.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Brooklyn, United States
$5.3M
raised

DaisyChain Energy offers an AI enabled software platform that helps with monitoring, electrification, decarbonization, and compliance needs.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

New York, United States
$14.0M
raised

ECOncrete technology provides sustainable solutions for construction of ecologically active infrastructures.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$7.6M
raised

Elvy Energy provides a novel method of energy consumption through the installation of solar panels, heat pumps, and battery systems.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Satigny, Switzerland

An integrated energy company driving the future of clean mobility and decentralized energy systems.

May 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Tempe, United States
$2.9M
raised

Fusion Energy Solutions is a customizable research and development facility.

Apr 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

Naples, United States
$488K
raised

IntriEnergy is a startup that provides high-efficiency PV cells.

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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Yarnton, United Kingdom
$25.0M
raised

First Light Fusion is an energy company that focuses on researching energy generation by inertial confinement fusion.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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 Francisco, United States
$9.9M
raised

Hadron Energy is a manufacturing company that specializes in Micro Nuclear Reactor (MNR) development, design, and research services.

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

Paris, France
$7.4M
raised

MyJouleBox offers a solution for solar professionals in Africa to offer leased solar installations to their customers.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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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

Ann Arbor, United States
$15.2M
raised

Heat2Power is an energy tech company that offers TPV technology, semiconductor manufacturing, and thermal energy systems.

Apr 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Cambridge, United States
$14.6M
raised

Sora Fuel makes jet fuel from just air, water, and renewable 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

Chur, Switzerland

Eturnity AG is a young company in the field of renewable energies.

Mar 2026
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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536 Energy Venture - Series Unknown Startups (October 2026) — Page 3 | VCBacked