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Series B Energy Companies

Explore 90 energy startups that raised series b funding. Access verified founder contact information and fundraising data.

Total Companies
90
Total Funding
$2.1B
Avg Funding
$82.3M
Cities
23

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Recently Funded Companies

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Coquitlam, Canada
$15.0M
raised

Moment Energy is a clean tech company focused on repurposing electric vehicle batteries to create sustainable energy storage solutions.

May 2026
Series B

Founder Contacts

19,000+ verified contacts

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

San Leandro, United States
$24.0M
raised

Coreshell Technologies is a nanotechnology company that is a developer of nanolayer coating technology for rechargeable batteries.

Apr 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

Grenoble, France

ROSI is a French company that develops innovative raw material recycling and revalorization technologies for the PV industry.

Apr 2026
Series B

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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El Segundo, United States
$105.0M
raised

Valar Atomics develops nuclear energy systems designed to supply industrial-scale power and produce energy-derived products.

Apr 2026
Series B

Founder Contacts

19,000+ verified contacts

Flintbek, Germany
$34.8M
raised

With everything we do, we aim to harness sustainable energy in order to energize the future.

Mar 2026
Series B

Founder Contacts

19,000+ verified contacts

Fremont, United States
$300.0M
raised

EnerVenue provides metal-hydrogen batteries for large-scale renewable and storage applications.

Mar 2026
Series B

Founder Contacts

19,000+ verified contacts

Munich, Germany
$49.9M
raised

Entrix provides software and services that support the operation and optimization of energy storage and renewable energy assets.

Mar 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

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19,000+ verified emails
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London, United Kingdom
$26.0M
raised

Veremark provides digital identity verification and background screening solutions for businesses.

Feb 2026
Series B

Founder Contacts

19,000+ verified contacts

Scotts Valley, United States
$140.0M
raised

Heron Power develops advanced power electronics and hardware solutions tailored for the modern electrical grid.

Feb 2026
Series B

Founder Contacts

19,000+ verified contacts

Vienna, Austria
$17.4M
raised

AI-powered energy trading services for global short-term power markets

Oct 2025
Series B

Founder Contacts

19,000+ verified contacts

Seattle, United States
$20.0M
raised

Membrion is a manufacturer of ultra-low cost, high performance ion exchange membranes.

Oct 2025
Series B

Founder Contacts

19,000+ verified contacts

Oxford, United Kingdom
$27.9M
raised

OXCCU develops technology to convert carbon dioxide and hydrogen into synthetic fuels, chemicals, and biodegradable plastics.

Sep 2025
Series B

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Amsterdam, The Netherlands
$22.4M
raised

Sympower unlocks revenue streams by maximising the value of flexibility across energy markets and industries.

Sep 2025
Series B

Founder Contacts

19,000+ verified contacts

Fremont, United States
$64.0M
raised

Nitricity is an energy company that creates renewable nitrogen fertilizer production with zero carbon emissions.

Sep 2025
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

Austin, United States
$100.0M
raised

Aalo Atomics manufactures and develops nuclear power plants for clean energy production.

Aug 2025
Series B

Founder Contacts

19,000+ verified contacts

Calgary, Canada
$44.0M
raised

GeologicAI is a software company specializes in Oil and Gas software.

Jul 2025
Series B

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Provo, United States
$29.0M
raised

Ionic Mineral Technologies is a nano-silicon anode powder producer that helps in charging speeds for lithium-ion batteries.

Jul 2025
Series B

Founder Contacts

19,000+ verified contacts

Berlin, Germany
$23.2M
raised

Enter provides energy audits, procurement and financing, and benchmarking for European homes.

Jun 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

Aachen, Germany
$17.3M
raised

Voltfang develops battery storage solutions for commercial, industrial and grid-scale applications using EV traction batteries.

Jun 2025
Series B

Founder Contacts

19,000+ verified contacts

Rivesaltes, France
$18.3M
raised

ETC specializes in thermal storage, energetic efficiency, industrial wastes recovery high valuation and advanced materials characterization.

Jun 2025
Series B

Founder Contacts

19,000+ verified contacts

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90 Recently Funded Energy Series B Startups (June 2026) | VCBacked