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CleanTech Startups

Updated July 2026

Companies in the cleantech sector developing innovative solutions and technologies.

Explore 820 recently funded cleantech companies with verified founder contact information and fundraising data.

Total Companies
820
Total Funding
$511.7M
Avg Funding
$20.5M
Global Reach
11
countries

Top Cities for CleanTech

Hollister
Rome
Barcelona
Calgary
Helsinki
Stockholm

Recently Funded Companies

Export
Hollister, United States

ZeroAvia develops hydrogen-electric powertrains for zero-emission aviation solutions.

Dec 2025

Founder Contacts

30,000+ verified contacts

Rome, Italy

Technology infrastructure as a service

$3.4M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Barcelona, Spain

Submer enables next-generation cooling and automation for data and energy-

$20.9M raised
Dec 2024

Founder Contacts

30,000+ verified contacts

Calgary, Canada

Entropy focuses on commercializing energy‐transition technologies.

$149.7M raised
Dec 2023

Founder Contacts

30,000+ verified contacts

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

30,000+ 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

30,000+ verified contacts

Stockholm, Sweden

small modular reactors, clean energy, deep tech

$50.0M raised
Dec 2025

Founder Contacts

30,000+ 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

30,000+ verified contacts

Kailua Kona, United States

Symbrosia is a cleantech startup reducing livestock methane with the mightiest seaweed.

$5.8M raised
Dec 2025

Founder Contacts

30,000+ verified contacts

Mascot, Australia

5B is a solar technology manufacturer.

$16.8M raised
Dec 2022

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands

One-stop shop for solar mini-grids

$1.4M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Stockholm, Sweden

GreenIron has developed a groundbreaking energy-efficient process for the sustainable recycling of waste and residues.

$10.9M raised
Dec 2021

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Chapel Hill, United States

Premirr Plastics provides a sustainable, and eco-friendly method to chemically recycle polyethylene terephthalate.

$3.9M raised
Dec 2022

Founder Contacts

30,000+ 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

30,000+ verified contacts

London, United Kingdom

Sküma engages in the purification and mineralization of tap water making it a quality functional beverage.

Dec 2023

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Bpacks developed the first bark packaging technology that integrates easily into existing production streams, replacing plastic materials.

$419K raised
Dec 2024

Founder Contacts

30,000+ 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

30,000+ verified contacts

Berlin, Germany

NeoCarbon is a cleantech startup that builds and markets the technology for Direct Air Capture (DAC), capturing CO2 directly from the air.

$3.5M raised
Dec 2023

Founder Contacts

30,000+ verified contacts

Sydney, Australia

Pathzero makes it easy for companies to disclose their carbon emissions and the actions being taken to address them.

$5.9M raised
Dec 2022

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Genova, Italy

Ogyre is a community that focuses on safeguarding the oceans by providing financial backing to fishermen for collecting marine debris.

$4.5M raised
Dec 2025

Founder Contacts

30,000+ verified contacts

Richmond, United States

Recharged is an end-to-end, data-driven used electric vehicle marketplace on a mission to simplify EV ownership.

$14.5M raised
Dec 2025

Founder Contacts

30,000+ verified contacts

Showing 651 to 675 of 820 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 820 cleantech companies tracked in the VCBacked database.

Average Funding
$20.5M
Total Funding Tracked
$511.7M
Countries Represented
11

Distribution by Funding Stage

Other25 companies

Top Cities for CleanTech

1.London
4 companies$3.9M
2.Stockholm
3 companies$61.6M
3.Hollister
1 companiesUndisclosed
4.Rome
1 companies$3.4M
5.Barcelona
1 companies$20.9M

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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820 CleanTech Startups (2026) — Recently Funded Companies, Investors & Rounds — Page 27 | VCBacked