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Clean Energy Startups

Updated July 2026

Companies in the clean energy sector developing innovative solutions and technologies.

Explore 510 recently funded clean energy companies with verified founder contact information and fundraising data.

Total Companies
510
Total Funding
$482.6M
Avg Funding
$19.3M
Global Reach
8
countries

Top Cities for Clean Energy

Berkeley
Miami
South Windsor
Santa Cruz
Oakville
Berlin

Recently Funded Companies

Export
Berkeley, United States

Deep Isolation develops and commercializes technology to safely dispose of nuclear waste using deep horizontal boreholes.

$33.0M raised
Jul 2025

Founder Contacts

30,000+ verified contacts

Miami, United States

HOPE Hydration is a water-tech & media startup transforming global hydration.

$20.0M raised
Jul 2025

Founder Contacts

30,000+ verified contacts

South Windsor, United States

OPM is a commercial company delivering fully functional end-use products to the biomedical, aerospace, and industrial markets.

$355K raised
Jul 2025

Founder Contacts

30,000+ verified contacts

Santa Cruz, United States

Peregrine Hydrogen operates as a climate technology company.

$7.5M raised
Jul 2025

Founder Contacts

30,000+ verified contacts

Oakville, Canada

Terrestrial Energy is a developer of a reactor power plant technology to provide carbon-free energy for the global industry.

$25.8M raised
Jul 2025

Founder Contacts

30,000+ verified contacts

Berlin, Germany

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

$22.9M raised
Jun 2025

Founder Contacts

30,000+ verified contacts

Wilmington, United States

CleanTech, Renewable Energy, Data Infrastructure, HPC, AI Infrastructure

$325K raised
Jun 2025

Founder Contacts

30,000+ verified contacts

La Rinconada, Spain

HESS Ltd. is a technological solution provider, a pioneer in creating hybrid energy storage solutions for the electrical grid

$13.6M raised
May 2025

Founder Contacts

30,000+ verified contacts

Berlin, Germany

End-to-End Energy-as-a-Service for Small and Medium Sized Enterprise

$27.2M raised
May 2025

Founder Contacts

30,000+ verified contacts

Lexington, United States

The Nuclear Company is a fleet-scale nuclear deployment firm that offers for nuclear sectors.

$46.3M raised
May 2025

Founder Contacts

30,000+ verified contacts

Washington, United States

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

$50.0M raised
May 2025

Founder Contacts

30,000+ verified contacts

Fremont, United States

We build resilient and flexible EV charging infrastructure to accelerate decarbonization, and support community adaptation to climate risks.

$100K raised
Apr 2025

Founder Contacts

30,000+ verified contacts

Walnut Creek, United States

Energy Efficiency, Hospitality, SaaS, IoT, Smart Buildings

$2.1M raised
Apr 2025

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands

Transforming CO2 supply

Apr 2025

Founder Contacts

30,000+ verified contacts

Nunawading, Australia

RayGen is building lowest cost, long duration solar + storage to deliver the economics of pumped hydro with the flexibility of batteries.

$79.0M raised
Apr 2025

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands

Thorizon develops and deploys cutting-edge technology for molten salt reactors.

$17.5M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Developing the world's first high pressure, ultra-efficient electrolyser and lowest cost of pressurised green hydrogen.

$17.4M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Seattle, United States

AtmoCooling is a climate tech company that offers cooling solutions for coastal deserts.

$2.6M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Raleigh, United States

Clean, secure, reliable power technology based on solid-state transformers (SST) to revolutionize AI datacenters, microgrids, EV charging.

$20.0M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Berkeley, United States

Capture6 is a direct air capture start-up leveraging its technology to support climate resilience and industrial decarbonization.

$27.5M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Melbourne, Australia

PHNXX provides containerised clean and reliable energy solutions for business operations.

$1.1M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Montreal, Canada

Dcbel specializes in smart home energy systems that empower users to manage their energy supply through a single device.

$55.0M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Diemen, The Netherlands

Moonwatt solves problems of the energy transition through innovative energy products hardware and software.

$8.4M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Herzliya, Israel

Zero-carbon footprint technology for VOCs Abatement

$1.5M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

South Burlington, United States

Resonant Link delivers the world's fastest and easiest to use wireless charging for medical devices, consumer electronics, and EVs.

$3.4M raised
Jan 2025

Founder Contacts

30,000+ verified contacts

Showing 301 to 325 of 510 companies

About the Clean Energy Startup Ecosystem

The clean energy sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.

Funding Trends in Clean Energy

Clean Energy companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.

Growth Outlook

The clean energy sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.

Clean Energy Funding Breakdown

Here is how funding is distributed among the 510 clean energy companies tracked in the VCBacked database.

Average Funding
$19.3M
Total Funding Tracked
$482.6M
Countries Represented
8

Distribution by Funding Stage

Other25 companies

Top Cities for Clean Energy

1.Berkeley
2 companies$60.5M
2.Berlin
2 companies$50.1M
3.Amsterdam
2 companies$17.5M
4.Miami
1 companies$20.0M
5.South Windsor
1 companies$355K

Related Industries

Companies in the clean energy sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.

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