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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
$771.3M
Avg Funding
$30.9M
Global Reach
5
countries

Top Cities for Clean Energy

Carlsbad
San Francisco
Somerville
Granada
Houston
Tucson

Recently Funded Companies

Export
Carlsbad, United States

The operating system for advanced battery chemistries

$6.5M raised
May 2026

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Sunverge Energy provides integrated solar solutions for distributed generation and storage.

$2.1M raised
May 2023

Founder Contacts

41,000+ verified contacts

Somerville, United States

Singularity Energy uses real-time carbon data to make better energy decisions.

$4.5M raised
May 2022

Founder Contacts

41,000+ verified contacts

Granada, Spain

Leading the global Net-Zero emissions challenge with a focus on Green Hydrogen developments in aviation and electrified REX mobility.

$1.3M raised
May 2023

Founder Contacts

41,000+ verified contacts

Houston, United States

Altillion develops ALIX-based processes that extract and concentrate lithium and other critical minerals from brine resources.

$5.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Tucson, United States

SorbiForce is a World`s first non-metal battery, made from renewable raw materials, cost-effective, safe and with zero environmental impact.

$162K raised
May 2026

Founder Contacts

41,000+ verified contacts

Silver Spring, United States

Neighborhood Sun Benefit provides locally produced clean energy without any solar panels to install or upfront fees.

May 2026

Founder Contacts

41,000+ verified contacts

Binghamton, United States

Natrion is developing scalable solid-state electrolytes to enable the mass adoption of EVs.

May 2026

Founder Contacts

41,000+ verified contacts

Somerville, United States

Sublime Systems develops technology to decarbonize cement-making.

May 2025

Founder Contacts

41,000+ verified contacts

New York, United States

Carbon conversion technology bolts onto ANY source of carbon dioxide emissions converts the pollution into clean natural gas StandardRNG

$6.4M raised
May 2025

Founder Contacts

41,000+ verified contacts

Vancouver, Canada

Standard Uranium is an exploration company that seeks fuel to power a clean energy future.

$654K raised
May 2026

Founder Contacts

41,000+ verified contacts

Woburn, United States

Gradiant provides advanced water treatment solutions to tackle critical water challenges for various industries.

May 2026

Founder Contacts

41,000+ verified contacts

Toronto, Canada

Software company that enables intelligent energy in smart cities

$20.0M raised
May 2023

Founder Contacts

41,000+ verified contacts

Washington, United States

Inspiration is the first one-stop EV solutions company to both finance electric vehicles.

$215.0M raised
May 2022

Founder Contacts

41,000+ verified contacts

Houston, United States

Sun Co. Tracking specializes in making solar trackers more affordable and reliable for rooftop applications.

$350K raised
May 2022

Founder Contacts

41,000+ verified contacts

Tucson, United States

Sun Company is a provider of custom-tailored solar energy solutions for residential, commercial, and utility applications.

$350K raised
May 2022

Founder Contacts

41,000+ verified contacts

Boston, United States

Emvolon is a technology company that converts wasted resources into low-cost green fuels

$200K raised
May 2025

Founder Contacts

41,000+ verified contacts

Somerville, United States

Optigon offers materials scientists and manufacturers solutions to help speed the development and deployment of clean energy materials.

$100K raised
May 2025

Founder Contacts

41,000+ verified contacts

New York, United States

Crux is a capital market company that provides debit marketplace,transferable tax credits, and market intelligence for tax credit transfers.

$500.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Mississauga, Canada

Li-Cycle is a clean technology company that uses an environmentally friendly process to recycle lithium-ion batteries.

$7.5M raised
May 2025

Founder Contacts

41,000+ verified contacts

Santa Clara, United States

Oklo specializes in designing and developing small modular reactors for advanced fission power plants.

May 2026

Founder Contacts

41,000+ verified contacts

New York, United States

Exodys Energy is an engineering company that develops closed-loop nuclear systems to recycle used nuclear fuel to supply clean energy.

May 2026

Founder Contacts

41,000+ verified contacts

Montréal, Canada

SPARK Microsystems is a semiconductor company that develops short-range wireless communication technology.

$730K raised
May 2026

Founder Contacts

41,000+ verified contacts

Lutry, Switzerland

Ammonia for Clean Energy - Driving Clean, Sustainable Off-Grid Power Solution

$250K raised
May 2026

Founder Contacts

41,000+ verified contacts

Saarbrücken, Germany

A software company developing an AI-driven energy management platform for non-residential and commercial buildings.

$194K raised
May 2024

Founder Contacts

41,000+ verified contacts

Showing 226 to 250 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
$30.9M
Total Funding Tracked
$771.3M
Countries Represented
5

Distribution by Funding Stage

Other25 companies

Top Cities for Clean Energy

1.Somerville
3 companies$4.6M
2.New York
3 companies$506.4M
3.Houston
2 companies$5.3M
4.Tucson
2 companies$512K
5.Carlsbad
1 companies$6.5M

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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