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CleanTech Startups

Updated August 2026

Companies in the cleantech sector developing innovative solutions and technologies.

Explore 837 recently funded cleantech companies with verified founder contact information and fundraising data.

Total Companies
837
Total Funding
$912.7M
Avg Funding
$36.5M
Global Reach
10
countries

Top Cities for CleanTech

Selçuklu
Barcelona
San Leandro
East Setauket
Viljandi
Layton

Recently Funded Companies

Export
Selçuklu, Turkey

Sitrett MX is a manufacturing company that engages in the production of soaps and cleaning products for personal and industrial purposes.

$743K raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Barcelona, Spain

Electricty from nature.

$521K raised
Jul 2022

Founder Contacts

41,000+ verified contacts

San Leandro, United States

Enables economic lithium production from low-grade resources previously considered infeasible, leveraging applied electrochemistry.

$2.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

East Setauket, United States

A decentralized network of fully-automated indoor vertical farms.

$3.7M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Viljandi, Estonia

Solarstone develops and produces building-integrated PV (BIPV) solutions that promote sustainable building principles

$10.2M raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Layton, United States

Vortechs is an advanced recycling company that recycles most plastic and other hydrocarbon waste, in any mix.

$250K raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Detroit, United States

The supply chain platform reshaping how hardware is built, delivered, and serviced

$3.5M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Berkeley, United States

Pivot Bio is an agricultural tech company improving the microbiome by taking nitrogen from the air and making it available for plants.

$430.0M raised
Jul 2021

Founder Contacts

41,000+ verified contacts

Warrington, United Kingdom

MoltexFLEX is developing the advanced small modular FLEX reactor and GridReserve energy storage system.

$1.7M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Eindhoven, The Netherlands

EIT InnoEnergy is an environmental services company that provides catalysing and accelerating energy transitions.

Jul 2024

Founder Contacts

41,000+ verified contacts

Kastrup, Denmark

Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.

$380.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Espoo, Finland

We develop next generation AI robotic factories that manufacture low-carbon concrete products for infrastructure projects.

$7.4M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Barcelona, Spain

Plastiks uses blockchain to verify and track plastic recovery data, ensuring transparency and combating greenwashing in recycling.

$500K raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Hallennes-lez-haubourdin, France

NeoCem creates, manufactures, and promotes a variety of low-carbon cements for the building industry.

$19.5M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Carlsbad, United States

Circularity platform that streamlines electric vehicle battery assessment, integration, and reuse.

$10.0M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Delft, The Netherlands

Kitepower elevates wind energy to a new level by swapping out heavy structure for intelligent controls and lightweight wings.

$981K raised
Jul 2022

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Notpla is a sustainable packaging start-up that develops a material derived from seaweed and plants.

$26.9M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Barcelona, Spain

X1 Wind is a disruptive floating platform developing a floating wind platform for deep waters.

$5.1M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Berkeley, United States

Power‑Plant‑in‑a‑Box for EV, Data Centers | Green Energy Everywhere

$2.9M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Tauranga, New Zealand

Cetogenix is a clean technology business dedicated to creating long-term solutions to global climate change.

$27K raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Hellerup, Denmark

STACs Technology zero-emissions cooling solutions upcycle the District Energy industry's services and reach

$3.0M raised
Jul 2022

Founder Contacts

41,000+ verified contacts

South Holland, United States

North Sea Farmers mission is to represent the interests of the European seaweed industry.

$2.3M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Portland, United States

The global ocean health company harnessing the power of ocean for a climate positive future.

$250K raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Orem, United States

IsoTruss, Inc. designs and manufactures composite lattice structures for telecom towers, utility poles, and smart poles.

$124K raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Bassens, France

W Platform is a company that captures, analyzes, and repurposes CO2 emissions.

$1.1M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Showing 126 to 150 of 837 companies

About the CleanTech Startup Ecosystem

The cleantech 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 CleanTech

CleanTech 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 cleantech 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.

CleanTech Funding Breakdown

Here is how funding is distributed among the 837 cleantech companies tracked in the VCBacked database.

Average Funding
$36.5M
Total Funding Tracked
$912.7M
Countries Represented
10

Distribution by Funding Stage

Other25 companies

Top Cities for CleanTech

1.Barcelona
3 companies$6.1M
2.Berkeley
2 companies$432.9M
3.Selçuklu
1 companies$743K
4.San Leandro
1 companies$2.0M
5.East Setauket
1 companies$3.7M

Related Industries

Companies in the cleantech 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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