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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
$656.0M
Avg Funding
$26.2M
Global Reach
12
countries

Top Cities for CleanTech

Bath
Calgary
Honolulu
London
Syracuse
Isle

Recently Funded Companies

Export
Bath, United Kingdom

Naturbeads is scaling up the technology to manufacture cellulose beads and replace plastic microbeads intentionally added to many products

$4.8M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Calgary, Canada

Certarus is a provider of low carbon energy solutions through a fully integrated compressed natural gas (CNG) platform.

$1.2M raised
Apr 2024

Founder Contacts

30,000+ verified contacts

Honolulu, United States

Elemental is a non-profit investor focused on scaling climate solutions and social impact for all communities.

$577K raised
Apr 2026

Founder Contacts

30,000+ verified contacts

London, United Kingdom

AI-native platform for market and business intelligence in renewable energy

$577K raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Calgary, Canada

Carbon Upcycling develops technology to produce local, low-carbon cement materials from CO₂ emissions and industrial byproducts

$10.0M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Syracuse, United States

SEAT was founded by Ashoke Bose, a former IBM Senior Manager, in 2014. Driven by his passion for renewables and agriculture.

$100K raised
Apr 2024

Founder Contacts

30,000+ verified contacts

Isle, Jamaica

Lifezone Metals is a metals company.

$25.1M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Santa Clara, United States

Natron Energy is an energy storage company that develops sodium ion battery solutions leveraging Prussian Blue electrode materials.

$55.4M raised
Apr 2025

Founder Contacts

30,000+ verified contacts

Woburn, United States

Verdox develops an electric carbon removal technology designed to eliminate emissions from aluminum production.

Apr 2022

Founder Contacts

30,000+ verified contacts

Kastrup, Denmark

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

$380.0M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Edinburgh, United Kingdom

Exergy3 is a cleantech company that develops thermal energy storage solutions for industrial applications.

$13.5M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Oakland, United States

Khemia Metals to replace critical metals with earth-abundant alloys to make lighter, cheaper, and more sustainable batteries.

$2.5M raised
Apr 2025

Founder Contacts

30,000+ verified contacts

Vancouver, Canada

A B2B reusable packaging company that has developed a technology to make zero waste living easy, affordable, and rapidly scalable.

$302K raised
Apr 2023

Founder Contacts

30,000+ verified contacts

Saint-sulpice, Switzerland

Daphne Technology is a developer of a sustainable, technically advanced and cost efficient air emissions control system.

$19.2M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Binghamton, United States

Bridge Green Upcycle is a clean energy company that specializes in lithium-ion battery upcycling technology solutions.

$750K raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Dover, United States

Bubble Robotics, a company focused on building advanced underwater robots.

$5.3M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Welshpool, Australia

Renewable Metals allows outdated batteries to retain essential minerals, extending their useful life.

$8.6M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Kraków, Poland

Hydropolis is a tech start-up specializing in indoor vertical farming solutions.

$255K raised
Apr 2023

Founder Contacts

30,000+ verified contacts

Silver Spring, United States

9Fiber is an agro-technology company creating high value, hyper-clean, engineered materials from hemp-derived feedstocks.

$325K raised
Apr 2022

Founder Contacts

30,000+ verified contacts

Stockholm, Sweden

Bright Energy is a Swedish electricity company that offers companies and households hourly rates on electricity.

$4.2M raised
Apr 2022

Founder Contacts

30,000+ verified contacts

Berlin, Germany

Software that helps retailers track and cut carbon in real-time.

$11.5M raised
Apr 2022

Founder Contacts

30,000+ verified contacts

Hong Kong, Hong Kong

Avalon SteriTech is a cleantech company which offers disinfection technology solutions for public spaces.

$9.0M raised
Apr 2022

Founder Contacts

30,000+ verified contacts

Endicott, United States

iM3NY is a startup lithium ion battery cell manufacturing company with HQ and Gigafactory located in Endicott, NY.

$100.0M raised
Apr 2022

Founder Contacts

30,000+ verified contacts

Turin, Italy

PipeIn developes hardware and software solution for predictive maintenance of strategic pipelines.

$796K raised
Apr 2023

Founder Contacts

30,000+ verified contacts

Chino, United States

BLUETTI is a clean energy company that builds a producer storage system of high-quality power for homes.

$2.0M raised
Apr 2026

Founder Contacts

30,000+ verified contacts

Showing 276 to 300 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
$26.2M
Total Funding Tracked
$656.0M
Countries Represented
12

Distribution by Funding Stage

Other25 companies

Top Cities for CleanTech

1.Calgary
2 companies$11.2M
2.Bath
1 companies$4.8M
3.Honolulu
1 companies$577K
4.London
1 companies$577K
5.Syracuse
1 companies$100K

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 | VCBacked