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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
$27.6M
Avg Funding
$2.3M
Global Reach
7
countries

Top Cities for CleanTech

Edinburgh
Tønsberg
Datchet
Zürich
Warsaw
Phoenix

Recently Funded Companies

Export
Edinburgh, United Kingdom

Helping grow more trees more sustainably.

$35K raised
Oct 2025

Founder Contacts

41,000+ verified contacts

Tønsberg, Norway

Maker of Freepower - an electric boat totally self-sufficient by solar energy

$178K raised
Oct 2021

Founder Contacts

41,000+ verified contacts

Datchet, United Kingdom

HotGreen is an industrial high-temperature heat pump company providing process heat from electricity.

$1.6M raised
Oct 2025

Founder Contacts

41,000+ verified contacts

Zürich, Switzerland

UniSieve is a cleantech company that provides molecular separation membrane solutions for a wide range of applications.

Oct 2023

Founder Contacts

41,000+ verified contacts

Warsaw, Poland

Hop.City enables green business mobility on a scale

Oct 2024

Founder Contacts

41,000+ verified contacts

Phoenix, United States

Waste to revenue technology servicing the Agriculture, Food Processing, and Environmental Waste Remediation industries.

Oct 2023

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Net Purpose is the world's first data provider to make impact measurement effortless for investors: who invest for profit and purpose

$11.1M raised
Oct 2022

Founder Contacts

41,000+ verified contacts

New York, United States

WattBuy is a clean energy platform that empowers enterprises to help their customers choose affordable, clean energy options for their home.

$11.2M raised
Oct 2021

Founder Contacts

41,000+ verified contacts

Lewis Center, United States

Long-duration battery energy storage

$2.0M raised
Oct 2022

Founder Contacts

41,000+ verified contacts

Halifax, Canada

Reazent is an agtech company that makes more economically viable, sustainable, and safer alternatives to synthetic agrochemicals.

Oct 2021

Founder Contacts

41,000+ verified contacts

Saku, Estonia

Paul-Tech offer real-time fertilizer level and soil workability monitoring system.

$1.5M raised
Oct 2023

Founder Contacts

41,000+ verified contacts

Hawthorne, United States

Universal Hydrogen is a fuel logistics company making hydrogen-powered commercial flight a reality.

Oct 2022

Founder Contacts

41,000+ verified contacts

Showing 826 to 837 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
$2.3M
Total Funding Tracked
$27.6M
Countries Represented
7

Distribution by Funding Stage

Other12 companies

Top Cities for CleanTech

1.Edinburgh
1 companies$35K
2.Tønsberg
1 companies$178K
3.Datchet
1 companies$1.6M
4.Zürich
1 companiesUndisclosed
5.Warsaw
1 companiesUndisclosed

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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