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Series B Clean Energy Companies

Explore 16 clean energy startups that raised series b funding. Access verified founder contact information and fundraising data.

Total Companies
16
Total Funding
$1.4B
Avg Funding
$85.0M
Cities
16

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Kearny, United States

Thea Energy is an energy company developing systems for commercial power generation based on stellarator magnetic confinement technology.

May 2026
Series B

Founder Contacts

19,000+ verified contacts

Tokyo, Japan
$5.6M
raised

Helical Fusion is a startup company that aims to commercialize fusion energy using magnetic confinement of high-temperature plasmas.

Apr 2026
Series B

Founder Contacts

19,000+ verified contacts

Paris, France
$88.6M
raised

Newcleo is an atomic energy company that focuses on developing advanced nuclear energy technologies.

Feb 2026
Series B

Founder Contacts

19,000+ verified contacts

Cambridge, United States
$863.0M
raised

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

Aug 2025
Series B

Founder Contacts

19,000+ verified contacts

Berlin, Germany
$22.9M
raised

Ostrom is a green digital energy provider that helps you use power when it's cheapest and greenest.

Jun 2025
Series B

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Washington, United States
$50.0M
raised

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

May 2025
Series B

Founder Contacts

19,000+ verified contacts

Manchester, United Kingdom
$63.4M
raised

Blockchain, AI, Renewables, Distributed Energy Management System, Peer-to-Peer Exchange System, Local Energy Market, Virtual Power Plants

Dec 2024
Series B

Founder Contacts

19,000+ verified contacts

Sha Tin, Hong Kong
$27.3M
raised

Ampd Energy creates sustainable energy storage solutions for construction, leveraging batteries, connectivity, and data.

Nov 2024
Series B

Founder Contacts

19,000+ verified contacts

Torino, Italy
$1.6M
raised

E-mobility, Sustainable Manufacturing, Advanced Materials, Cleantech, Electrification, Decarbonization

Oct 2024
Series B

Founder Contacts

19,000+ verified contacts

Coimbra, Portugal
$11.4M
raised

Eneida designs and develops smart sensors and artificial intelligence applications for resilient and agile low voltage grid.

Jul 2024
Series B

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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New York, United States
$30.0M
raised

Sealed is a residential energy efficiency startup that designs, manages, and finances home weatherization and electrification projects.

Mar 2024
Series B

Founder Contacts

19,000+ verified contacts

Groningen, The Netherlands
$32.8M
raised

Soly is a solar energy startup that provides energy equipment to make solar energy accessible to everyone.

Jan 2024
Series B

Founder Contacts

19,000+ verified contacts

Luxembourg, Luxembourg
$36.5M
raised

Clariter is a global clean-tech company that has created a revolutionary process which addresses the world's plastic waste problem.

Dec 2023
Series B

Founder Contacts

19,000+ verified contacts

Munich, Germany
$12.5M
raised

ChargeX provides electric car charging solutions.

Jul 2023
Series B

Founder Contacts

19,000+ verified contacts

Freistadt, Austria
$17.4M
raised

neoom is a European Cleantech scale-up founded in Austria.

May 2023
Series B

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Houston, United States
$97.0M
raised

Sage Geosystems develops geothermal and energy storage technologies that use subsurface heat and pressure to generate and store electricity.

Jan 2026
Series B

Founder Contacts

19,000+ verified contacts

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