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Seed CleanTech Companies

Explore 289 cleantech startups that raised seed funding. Access verified founder contact information and fundraising data.

Total Companies
289
Total Funding
$41.8M
Avg Funding
$1.7M
Cities
20

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Chicago, United States
$250K
raised

Ourea Energy is a clean tech company that offers gravity-powered energy storage solution for data centers and independent power producers.

Jun 2026
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States

AICE Power develops autonomous subsea drones for monitoring and protecting critical infrastructure and underwater security operations.

Jun 2026
Pre-Seed

Founder Contacts

30,000+ verified contacts

Sever Do Vouga, Portugal
$2.0M
raised

Graphenest protect electronics and automotive from electromagnetic interference with sustainable graphene-based coatings and plastics

Jun 2023
Seed

Founder Contacts

30,000+ verified contacts

Somerville, United States
$1.0M
raised

Raise Green is a climate tech marketplace for local impact investing.

Jun 2023
Seed

Founder Contacts

30,000+ verified contacts

New York, United States
$1.1M
raised

Genvision is an AI-enabled solution to measure carbon storage in natural assets.

Jun 2023
Pre-Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Hong Kong, Hong Kong
$160K
raised

Harness the power of artificial intelligence for waste management

Jun 2022
Seed

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands
$8.1M
raised

Aquablu makes hydration solutions that are so good, people forget they are also saving the planet

Jun 2025
Seed

Founder Contacts

30,000+ verified contacts

Pasadena, United States
$2.5M
raised

StackHaus rebuilds disaster-resilient, non-combustible homes in Southern California under one fixed-price contract.

May 2026
Seed

Founder Contacts

30,000+ verified contacts

New York, United States

Re-Nuble is a climate tech company that converts unrecoverable vegetative byproducts into a platform of sustainable inputs for agriculture.

May 2023
Seed

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands
$10K
raised

Peerby Classic was a free community for borrowing things from neighbors.

May 2022
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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London, United Kingdom

Faradai is an AI-powered energy management platform helping businesses monitor, optimize, and reduce carbon emissions and energy costs.

May 2024
Seed

Founder Contacts

30,000+ verified contacts

Brussels, Belgium
$1.5M
raised

Borro focuses on sustainable event solutions including a cashless deposit system to enable reuse at scale.

May 2026
Seed

Founder Contacts

30,000+ verified contacts

Riga, Latvia
$537K
raised

Alternative Plants is a plant based healthcare company that offers active ingredients from rare medicinal plants.

May 2022
Seed

Founder Contacts

30,000+ verified contacts

Somerville, United States
$4.5M
raised

Singularity Energy uses real-time carbon data to make better energy decisions.

May 2022
Seed

Founder Contacts

30,000+ verified contacts

Houston, United States
$5.0M
raised

Altillion develops ALIX-based processes that extract and concentrate lithium and other critical minerals from brine resources.

May 2026
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Norwich, United Kingdom
$4.6M
raised

QuberTech develops genetically enhanced rubber-producing dandelions and indoor soil-free cultivation systems for alternative natural rubber.

May 2026
Seed

Founder Contacts

30,000+ verified contacts

London, United Kingdom

ViridiCO2 delivers innovative, disruptive technology, capable of addressing the lack of mitigative Carbon Capture Utilisation technology.

May 2025
Seed

Founder Contacts

30,000+ verified contacts

London, United Kingdom
$1.8M
raised

CTVC operates as a newsletter powered by Sightline Climate.

May 2023
Seed

Founder Contacts

30,000+ verified contacts

Montréal, Canada
$1.1M
raised

Create your own healthy and customized water at home

May 2023
Seed

Founder Contacts

30,000+ verified contacts

Cambridge, United States
$2.5M
raised

Atacama Biomaterials is an AI driven biotech company that offers compostable and biodegradable plastic alternatives.

May 2025
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
Unlimited exports
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Sorocaba, Brazil
$778K
raised

Focused on applied technology to preserve what matters: water

May 2024
Seed

Founder Contacts

30,000+ verified contacts

Cincinnati, United States
$100K
raised

We automate harbor pollution management with scalable smart buoys and "Roombas" for the water

May 2024
Pre-Seed

Founder Contacts

30,000+ verified contacts

Guelph, Canada
$325K
raised

Erode AI helps businesses thrive in a changing climate with AI-driven, accurate weather forecasting tools.

May 2023
Pre-Seed

Founder Contacts

30,000+ verified contacts

Victoria, Canada
$1.1M
raised

Emitiq provides tools for measuring, reporting, and verifying environmental projects.

May 2023
Pre-Seed

Founder Contacts

30,000+ verified contacts

Spring, United States
$3.0M
raised

Fintech that provides a financing marketplace for energy efficiency projects

May 2023
Pre-Seed

Founder Contacts

30,000+ verified contacts

Showing 51 to 75 of 289 companies

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