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Venture - Series Unknown Clean Energy Companies

Explore 104 clean energy startups that raised venture - series unknown funding. Access verified founder contact information and fundraising data.

Total Companies
104
Total Funding
$2.0B
Avg Funding
$79.5M
Cities
20

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Brooklyn, United States

HEVO provides a seamless, safe, and universal wireless charging solution for electric vehicles.

Sep 2025
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$3.3M
raised

Signol focuses on behavior change to reduce fuel consumption and carbon emissions in the aviation and shipping sectors.

Sep 2024
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Las Vegas, United States
$2.6M
raised

GeoGenCo is a geothermal facility that generates clean, sustainable baseload power without using water or processing dangerous brine.

Sep 2023
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$5.0M
raised

Electron is accelerating the energy industry’s transition to Net Zero by making granular, market-based interactions possible.

Sep 2023
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Austin, United States

Bodhi is a climate tech software company that helps solar companies with customer communication and management.

Sep 2024
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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London, United Kingdom

SEaB Energy has patented a micro anaerobic digestion system for onsite and in-building conversion of organics to energy, water, & fertiliser

Sep 2022
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Norwich, United Kingdom

WATR develops a water monitor that is self-powered, portable, easy to install, with a live data dashboard and notification alerts.

Aug 2025
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

Los Angeles, United States
$4.3M
raised

Haus.me - Autonomous Self-Sustainable Homes

Aug 2022
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Amsterdam, The Netherlands
$4.0M
raised

Solar Monkey is a manufacturing firm developing solar panels with guaranteed returns.

Aug 2022
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Armonk, United States
$20.0M
raised

Brightcore Energy is a provider of end-to-end clean energy solutions to the commercial and institutional market.

Aug 2021
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Stockholm, Sweden
$174.3M
raised

Aira is a direct-to-consumer clean energy-tech company that provides heat pumps and home energy-saving solutions.

Aug 2025
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$254.4M
raised

Field is a renewable energy company aiming to accelerate the build-out of renewable infrastructure needed to reach net zero.

Jul 2023
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

Boston, United States
$34.8M
raised

Altaeros Energies develops airborne wind turbine to produce abundant, low cost, renewable energy.

Jul 2022
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Kastrup, Denmark

Copenhagen Atomics is a manufacturer of thorium reactors.

Jul 2025
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

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

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
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Richmond, United States
$11.0M
raised

Moxion Power develops zero-emission generators and off-road equipment to support industries.

Jun 2023
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

Boston, United States

ELECTRA AI develops software platforms that use AI to monitor, manage, and optimize battery systems across multiple applications.

Jun 2023
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Sunnyvale, United States
$80.0M
raised

Turntide Technologies develops an electric motor system designed to drive down energy consumption.

Jun 2022
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

Hongo, Japan
$2.1M
raised

Blossom Energy is a manufacturing company that develops advanced nuclear reactors that can produce clean energy.

May 2025
Venture - Series Unknown

Founder Contacts

41,000+ verified contacts

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