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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
$159.8M
Avg Funding
$6.4M
Global Reach
10
countries

Top Cities for CleanTech

Hyogo
Rotterdam
Irvine
Washington
Halifax
Memphis

Recently Funded Companies

Export
Hyogo, Japan

Atomis is a cleantech company that manufactures prorous materials like PCP/MOFs alongside distributed gas sharing business.

Jul 2024

Founder Contacts

41,000+ verified contacts

Rotterdam, The Netherlands

Hamwells develops and manufactures sustainable shower systems. This with a focus on saving energy and water consumption.

Jul 2023

Founder Contacts

41,000+ verified contacts

Irvine, United States

Environmental infrastructure company focused transforming sewage into renewable resources, protecting public health and the environment.

Jul 2023

Founder Contacts

41,000+ verified contacts

Washington, United States

Map Collective provides AI software for supply chain transparency, automated sustainability metrics tracking, & operational decision-making.

$20K raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Halifax, Canada

Sustane is a cleantech provider focused on municipal waste transformation.

$686K raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Memphis, United States

Graphyte offers carbon removal services by utilizing a carbon casting technology.

$30.0M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Lowell, United States

Z-Polymers is a clean-tech materials science company solving fundamental problems in mission-critical industries.

$300K raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Rome, Italy

Technology infrastructure as a service

$4.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Toulouse, France

Ascendance is an aviation company decarbonizing air transport with electric propulsion technology.

$15.9M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Chicago, United States

Haylon Technologies is enabling a new class of ultra-efficient battery packs.

Jul 2023

Founder Contacts

41,000+ verified contacts

Besançon, France

CLHYNN is an industrial deep tech startup, offering the next gen. of decentralized electricity for mobility and stationary applications

$1.7M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Parnell, New Zealand

Avertana is a process technology business that refines solid industrial waste into essential raw materials used to make everyday products.

Jul 2024

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Renewabl is a climate-tech software company.

Jul 2024

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Altruistiq provides a platform that enables enterprises to automate sustainability data measurement, management, and exchange.

$18.1M raised
Jul 2022

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Itero creates profitable waste management solutions.

$6.1M raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Colne, United Kingdom

Patch App intends to digitally transform the window cleaning business.

$2.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Hamburg, United States

Aerovec is a renewable electrical energy provider developing small wind turbine technology.

$139K raised
Jul 2025

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Founders Factory builds and funds startups together with exceptional entrepreneurs and the world's leading companies.

$13.3M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Boston, United States

Reservoir provides smart heat pump water heaters with connected energy management and thermal storage.

$5.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Calgary, Canada

Revolutionizing bitumen recovery with biomass-derived solvents produced from forestry and agricultural biomass.

$3.4M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Berlin, Germany

ecoLocked is turning buildings into carbon sinks by developing CO2-negative building materials.

Jul 2024

Founder Contacts

41,000+ verified contacts

Cambridge, United States

Solstice provides turnkey customer solutions for shared solar.

Jul 2024

Founder Contacts

41,000+ verified contacts

Pasadena, United States

Captura specializes in direct ocean carbon capture, employing technology and leveraging the ocean's natural carbon removal capabilities.

$53.5M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Barcelona, Spain

Wallbox is a technology company that provides electric vehicle charging and energy management solutions.

$4.6M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Milan, Italy

VisioNing is a cleantech company that offers proprietary technology solutions for treatment and valorization of agro-industrial wastewater.

$1.2M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Showing 101 to 125 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
$6.4M
Total Funding Tracked
$159.8M
Countries Represented
10

Distribution by Funding Stage

Other25 companies

Top Cities for CleanTech

1.London
4 companies$37.5M
2.Hyogo
1 companiesUndisclosed
3.Rotterdam
1 companiesUndisclosed
4.Irvine
1 companiesUndisclosed
5.Washington
1 companies$20K

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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