Skip to main content

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
$1.6B
Avg Funding
$62.5M
Global Reach
7
countries

Top Cities for Clean Energy

Somerville
Rockville
Reading
San Diego
Fredericton
Cupertino

Recently Funded Companies

Export
Somerville, United States

Eden is the leader in natural resource recovery. They break rocks with electricity to increase subsurface permeability.

Jan 2025

Founder Contacts

41,000+ verified contacts

Rockville, United States

X-energy is a nuclear energy company that develops small modular nuclear reactors and nuclear fuels for clean energy generation.

$700.0M raised
Nov 2025

Founder Contacts

41,000+ verified contacts

Reading, United States

Solarflux provides a flexible, clean, inexpensive solar thermal power for a wide range of use cases

Jan 2024

Founder Contacts

41,000+ verified contacts

San Diego, United States

Energy Cloud® is a clean-tech company focused on energy efficiency, sustainability and healthy building environments.

$1.0M raised
Jan 2024

Founder Contacts

41,000+ verified contacts

Fredericton, Canada

Reinventing how organizations collaborate with building owners to expedite the decarbonization of the built environment

Jan 2024

Founder Contacts

41,000+ verified contacts

Cupertino, United States

Gridmatic is an AI-enabled power marketer that accelerates the ascent of clean energy.

$40.0M raised
Jan 2023

Founder Contacts

41,000+ verified contacts

Sedgefield, United Kingdom

Thermulon has developed a novel chemical pathway to produce building insulation materials.

Jan 2023

Founder Contacts

41,000+ verified contacts

Calgary, Canada

We collect, visualize and analyze near-surface data to identify underground utilities, fluid leaks, soil layers, and infrastructure health.

Jan 2023

Founder Contacts

41,000+ verified contacts

Dallas, United States

Aspen Power Partners is a distributed generation platform with the dual mission of accelerating and democratizing decarbonization.

$200.0M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Developing Cutting Edge Renewable Energy Technology to Empower Communities to Harness the Energy that Surrounds them

$993K raised
Jan 2023

Founder Contacts

41,000+ verified contacts

Houston, United States

Technology-driven energy storage company powering the carbon-free electric grid.

$10.0M raised
Nov 2022

Founder Contacts

41,000+ verified contacts

Amsterdam, The Netherlands

AI-powered decarbonization technology enabling creation of a $50B mkt category thru new way to transfer heat in high-emission industries

Nov 2021

Founder Contacts

41,000+ verified contacts

Aurora, United States

Transitional Energy brings geothermal technology to the oil and gas industry to generate clean, baseload power from heat waste.

$2.5M raised
Jan 2022

Founder Contacts

41,000+ verified contacts

West Jordan, United States

Bigmoon provides electricity through tidal energy and the ability to harness the power of the moon.

Jan 2022

Founder Contacts

41,000+ verified contacts

Kidlington, United Kingdom

Clean Solutions for a Growing World

Jan 2022

Founder Contacts

41,000+ verified contacts

Newark, United States

FreeWire Technologies is a provider of ultrafast electric vehicle (EV) charging solutions that mitigate the impact on the grid.

$29.2M raised
Nov 2023

Founder Contacts

41,000+ verified contacts

Munich, Germany

Battery infrastructure for electrified depots and industrial hubs.

$4.3M raised
Nov 2025

Founder Contacts

41,000+ verified contacts

Nantes, France

Simple, powerful floating solar technology

Nov 2023

Founder Contacts

41,000+ verified contacts

Houston, United States

LandBridge supports sustainability with solid waste management and solar power developments.

$500.0M raised
Nov 2025

Founder Contacts

41,000+ verified contacts

Warrenville, United States

Synata Bio is a developer of a fermentation technology designed to process synthesis gas from multiple sources into products.

$4.5M raised
Nov 2024

Founder Contacts

41,000+ verified contacts

Brooklyn, United States

Amogy offers carbon-free energy solutions using ammonia cracking technology.

$15.0M raised
Nov 2025

Founder Contacts

41,000+ verified contacts

London, United Kingdom

eleXsys Energy operates as a cleantech energy company.

$2.7M raised
Nov 2021

Founder Contacts

41,000+ verified contacts

Miami, United States

Purify Fuel manufactures a patented diesel combustion catalyst that ensures fuel efficiency and reduced emissions in engines.

$360K raised
Nov 2021

Founder Contacts

41,000+ verified contacts

Tallinn, Estonia

Delivering Sustainable Energy to Humanity

$3.2M raised
Nov 2023

Founder Contacts

41,000+ verified contacts

Issy-les-moulineaux, France

EODev creates and commercializes sustainable, dependable, and cost-effective hydrogen-based energy solutions.

$49.9M raised
Nov 2023

Founder Contacts

41,000+ verified contacts

Showing 651 to 675 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
$62.5M
Total Funding Tracked
$1.6B
Countries Represented
7

Distribution by Funding Stage

Other25 companies

Top Cities for Clean Energy

1.London
2 companies$3.7M
2.Houston
2 companies$510.0M
3.Somerville
1 companiesUndisclosed
4.Rockville
1 companies$700.0M
5.Reading
1 companiesUndisclosed

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.

Ready to Connect with Clean Energy Startups?

Perfect for: B2B sales teams targeting clean energy companies, investors exploring sector opportunities, and service providers looking for funded companies ready to scale.

Get Started - Access Contact Information

Join thousands of sales teams, investors, and service providers using VCBacked