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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
$762.4M
Avg Funding
$30.5M
Global Reach
12
countries

Top Cities for Clean Energy

Helsinki
Metairie
Stockholm
Berlin
Somerville
London

Recently Funded Companies

Export
Helsinki, Finland

BroadBit Batteries is developing revolutionary new batteries using novel sodium-based chemistries to power the future green economy.

$2.8M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Metairie, United States

PosiGen is on a mission to make solar affordable and easy to access for homeowners.

$200.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Stockholm, Sweden

Done is the operating system for green energy installations - EV Chargers, Battery storage and Heat pumps.

$674K raised
Dec 2022

Founder Contacts

41,000+ verified contacts

Stockholm, Sweden

small modular reactors, clean energy, deep tech

$50.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Berlin, Germany

RNT Motors is a forward-thinking company that seeks to revolutionize the transportation industry through innovation in electric.

$1.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Somerville, United States

Greentown Labs is a climate technology incubator that seeks to invest in the clean technology, energy, and environmental industries.

$3.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Lorica Energy provides capital-deployment platform to to facilitate investment into distributed renewable-energy infrastructure.

$281K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Washington, United States

Last Energy is a nuclear technology company that provides nuclear energy through its modular micro nuclear power plants.

$100.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Chelmsford, United States

Triton Anchor offers a new level of anchoring for floating renewable energy solutions.

$3.5M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Mascot, Australia

5B is a solar technology manufacturer.

$16.8M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

Amsterdam, The Netherlands

One-stop shop for solar mini-grids

$1.4M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Los Angeles, United States

Building smarter cities - starting with fully autonomous and modular smart houses.

$205K raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Stara Iwiczna, Poland

Effective biomass combustion and cogeneration

Dec 2021

Founder Contacts

41,000+ verified contacts

Williston, United States

ISun Energy develops and deploys solar energy and smart city e-mobility hubs.

$8.0M raised
Dec 2023

Founder Contacts

41,000+ verified contacts

Central, Hong Kong

The Venture Platform Bridging Entrepreneurs with Investors–Catalyzing Innovation into Solutions

$30.0M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Chippendale, Australia

EnergyLab is a hub coworking space and accelerator dedicated to helping clean energy startups succeed.

$1.1M raised
Dec 2023

Founder Contacts

41,000+ verified contacts

San Diego, United States

PowerFlex is a clean technology solutions company making the transformation to carbon-free electrification and transportation possible.

$100.0M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

Houston, United States

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

$97.0M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

North Sydney, Australia

Sunman Energy develops lightweight solar panels and mounting solutions designed for commercial rooftops with low load capacity.

$111.9M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Zug, Switzerland

PLAN-B NET ZERO is a renewable electricity provider with a software platform, enabling customers to optimise their energy consumption

$9.9M raised
Dec 2023

Founder Contacts

41,000+ verified contacts

Hoddesdon, United Kingdom

Developers of the IPG Flameless Generator, a hybrid, fuel-agnostic power solution accelerating the transition from diesel generators.

$63K raised
Dec 2023

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.

$3.2M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

Ivanovskaya, Russian Federation

Soymintech creates panel flooring that generates electricity from pedestrian footsteps.

$272K raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Bucharest, Romania

Charger.ro is the first integrator dedicated to smart and green solutions and services, for people and companies.

$258K raised
Dec 2022

Founder Contacts

41,000+ verified contacts

München, Germany

Pacifico Energy Partners is a renewable energy company that develops greenfields and repowers existing plants for wind and solar energy.

$21.1M raised
Dec 2022

Founder Contacts

41,000+ verified contacts

Showing 601 to 625 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
$30.5M
Total Funding Tracked
$762.4M
Countries Represented
12

Distribution by Funding Stage

Other25 companies

Top Cities for Clean Energy

1.Stockholm
2 companies$50.7M
2.London
2 companies$3.5M
3.Helsinki
1 companies$2.8M
4.Metairie
1 companies$200.0M
5.Berlin
1 companies$1.0M

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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