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Clean Energy Startups

Updated August 2026

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

Explore 727 recently funded clean energy companies with verified founder contact information and fundraising data.

Total Companies
727
Total Funding
$1.1B
Avg Funding
$42.1M
Global Reach
10
countries

Top Cities for Clean Energy

San Francisco
Itzehoe
London
Guatemala City
Tallinn
Lebanon

Recently Funded Companies

Export
San Francisco, United States

Emobi is an electric vehicle company that designs, manufactures, and markets zero-emission urban mobility solutions.

$3.4M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

Itzehoe, Germany

Innovative cells, High performance batteries, Lithium ion, cells, Automotive cells, Aviation cells, High Si cells, battery technology

$63.3M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

London, United Kingdom

GRYD Energy funds, operates, and optimize smart solar systems for homeowners that is decentralized and powered by clean solar energy.

$1.2M raised
Jan 2025

Founder Contacts

41,000+ verified contacts

Guatemala City, Guatemala

Lowering energy costs for the telecom industry in emerging markets, while creating a greener more connected future!

$3.2M raised
Dec 2023

Founder Contacts

41,000+ verified contacts

Tallinn, Estonia

R8tech take your building tech.management to the next generation by adding artificial intelligence on top of the existing automation system.

Dec 2023

Founder Contacts

41,000+ verified contacts

Lebanon, United States

FreshAir Sensor develops molecular air quality monitoring systems that help property operators track and manage indoor environments.

$3.7M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Oxford, United Kingdom

Oxford Flow is able to save money without sacrificing performance.

$25.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Denver, United States

The orbital nexus for powering space commerce, processing, and logistics.

$295K raised
Jan 2024

Founder Contacts

41,000+ verified contacts

New Bedford, United States

Littoral Power Systems designs, manufactures, and installs distributed power systems.

$4.0M raised
Jan 2022

Founder Contacts

41,000+ verified contacts

Gif-sur-yvette, France

Spark Cleantech develops and deploys a patented decarbonization technology for heavy industries.

$35.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Tokyo, Japan

Sustech is a technology company that develops platforms for decarbonization support and distributed power generation services.

Jan 2024

Founder Contacts

41,000+ verified contacts

Chicago, United States

HGR Energy is a clean energy development company and renewable IPP focused on targeted international markets.

$20.0M raised
Jan 2025

Founder Contacts

41,000+ verified contacts

Ecublens, Switzerland

SoHHytec provides renewable system for onsite production of solar fuel and power which is cleaner, greener, and cost-effective.

Dec 2024

Founder Contacts

41,000+ verified contacts

Ithaca, United States

Connecting the equipment you know with the information you need for faster, more effective decisions.

Jan 2024

Founder Contacts

41,000+ verified contacts

Reno, United States

Estuary Power develops, sponsors, and finances energy projects.

$340.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Octopus Energy is a clean energy technology company that provides green energy solutions.

$320.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Denver, United States

Ridgeline Royalties provides capital to the battery metals industry.

$1.3M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

Morrisville, United States

374Water (NASDAQ: SCWO) is a US-based cleantech company with an innovative solution to wastewater treatment and waste management issues.

$50.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Cedar Park, United States

Creating innovative generator solutions that enable clean, flexible, and affordable electricity production.

$6.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Hollister, United States

ZeroAvia develops hydrogen-electric powertrains for zero-emission aviation solutions.

Dec 2025

Founder Contacts

41,000+ verified contacts

Manhattan, United States

Dynamo Energy Hub is a global network that provides industry thought leaders with a platform to shape the future of energy.

$1.0M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

San Jose, United States

Fourth Wave Energy is a climate change solutions company focused on eliminating greenhouse gas emissions from the built environment.

$4.3M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Barcelona, Spain

Submer enables next-generation cooling and automation for data and energy-

$20.9M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Oakland, United States

Watt Time builds technologies that enable electronic devices to automatically sync the times they use power to moments of clean energy.

$500K raised
Dec 2023

Founder Contacts

41,000+ verified contacts

Calgary, Canada

Entropy focuses on commercializing energy‐transition technologies.

$149.7M raised
Dec 2023

Founder Contacts

41,000+ verified contacts

Showing 576 to 600 of 727 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 727 clean energy companies tracked in the VCBacked database.

Average Funding
$42.1M
Total Funding Tracked
$1.1B
Countries Represented
10

Distribution by Funding Stage

Other25 companies

Top Cities for Clean Energy

1.London
2 companies$321.2M
2.Denver
2 companies$1.6M
3.San Francisco
1 companies$3.4M
4.Itzehoe
1 companies$63.3M
5.Guatemala City
1 companies$3.2M

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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