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Renewable Energy Startups

Updated October 2026

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

Explore 1,854 recently funded renewable energy companies with verified founder contact information and fundraising data.

Total Companies
1,854
Total Funding
$557.3M
Avg Funding
$22.3M
Global Reach
12
countries

Top Cities for Renewable Energy

St Louis
Plano
Oxford
Thalwil
Springfield
Las Vegas

Recently Funded Companies

Export
St Louis, United States

Valerian Materials will lead the way in renewable, degradable, and recyclable polymers.

$1.2M raised
Sep 2022

Founder Contacts

41,000+ verified contacts

Plano, United States

Nexus develops, finances, and operates solar and energy storage assets.

$220.0M raised
Sep 2025

Founder Contacts

41,000+ verified contacts

Oxford, United Kingdom

OXLiD is a lithium-sulfur (Li-S) battery technology developer.

$718K raised
Sep 2025

Founder Contacts

41,000+ verified contacts

Thalwil, Switzerland

Unbound Potential develops and provides large-scale energy storage systems for various applications.

$9.4M raised
Sep 2025

Founder Contacts

41,000+ verified contacts

Springfield, United States

Vroom Solar MO provides plug-and-play solar-direct power stations and mounting racks for off-grid and mobile applications.

$68K raised
Sep 2024

Founder Contacts

41,000+ verified contacts

Las Vegas, United States

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

$2.6M raised
Sep 2023

Founder Contacts

41,000+ verified contacts

London, United Kingdom

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

$5.0M raised
Sep 2023

Founder Contacts

41,000+ verified contacts

Brussels, Belgium

Connect to distributed energy assets over the cloud

$1.8M raised
Sep 2021

Founder Contacts

41,000+ verified contacts

Frisco, United States

Mazama Energy develops geothermal energy systems that use heat from hot and superhot rock to generate electricity.

$135.0M raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Wollongong, Australia

Hysata develops hydrogen electrolyzers aimed at advancing the global transition from fossil fuels to green hydrogen.

$35.0M raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Cologne, Germany

NUNOS develops biological treatment systems that convert livestock slurry into liquid fertilizer and recycle nitrogenous wastewater.

$655K raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Madrid, Spain

Nomad Solar Energy specializes in producing and commercializing mobile and off-grid solar generators.

$16.7M raised
Sep 2024

Founder Contacts

41,000+ verified contacts

Bronx, United States

Fieldston Power is a renewable energy developing company that offers sustainable power solutions for urban areas.

$600K raised
Sep 2024

Founder Contacts

41,000+ verified contacts

Buffalo, United States

Stepwise provides home electrification services for EV charger and heat pump installations

$1.4M raised
Sep 2024

Founder Contacts

41,000+ verified contacts

Chicago, United States

NETenergy is a thermal energy storage company that is creating a thermal battery designed to offset peak electricity load.

$2.0M raised
Sep 2024

Founder Contacts

41,000+ verified contacts

San Juan, Puerto Rico

Barrio Eléctrico offers residential solar-plus-storage leases, relying on community engagement to support the systems.

$21.0M raised
Sep 2024

Founder Contacts

41,000+ verified contacts

Kraków, Poland

Advanced Data Science analytics obtained from IoT sensors and external information sources, dedicated for Energy sector

$1.8M raised
Sep 2021

Founder Contacts

41,000+ verified contacts

Copenhagen, Denmark

Fibernex develops nanofiber materials to optimize green hydrogen production.

$646K raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Brisbane, Australia

Endua is developing the next generation of renewable energy multi-day storage solutions.

$20K raised
Sep 2025

Founder Contacts

41,000+ verified contacts

Lewes, United States

Circuit Technologies is a Software Development firm offering installers, financiers, and OEMs for transition of renewable energy.

$600K raised
Sep 2025

Founder Contacts

41,000+ verified contacts

Oakland, United States

Planted is a solar deployment technology company that uses AI powered robots and software to plan and deploy solar projects.

$31.8M raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Salt Lake City, United States

Zanskar develops data-driven technology to identify and develop geothermal energy resources.

$40.0M raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Tallinn, Estonia

Stargate Hydrogen Solutions offers turn-key electrolysis solutions for the production of green hydrogen with renewable energy.

$23.8M raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Vancouver, Canada

Hertz Energy provides sustainable long-term lithium resource investment and extraction.

$2.2M raised
Sep 2026

Founder Contacts

41,000+ verified contacts

Montréal, Canada

FeX Energy is a pre-commercial startup focused on developing renewable energy storage solutions.

$3.5M raised
Sep 2025

Founder Contacts

41,000+ verified contacts

Showing 101 to 125 of 1,854 companies

About the Renewable Energy Startup Ecosystem

The renewable 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 Renewable Energy

Renewable 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 renewable 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.

Renewable Energy Funding Breakdown

Here is how funding is distributed among the 1,854 renewable energy companies tracked in the VCBacked database.

Average Funding
$22.3M
Total Funding Tracked
$557.3M
Countries Represented
12

Distribution by Funding Stage

Other25 companies

Top Cities for Renewable Energy

1.St Louis
1 companies$1.2M
2.Plano
1 companies$220.0M
3.Oxford
1 companies$718K
4.Thalwil
1 companies$9.4M
5.Springfield
1 companies$68K

Related Industries

Companies in the renewable 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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1,854 Renewable Energy Startups (2026) — Recently Funded — Page 5 | VCBacked