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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
$52.5M
Avg Funding
$2.1M
Cities
20

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London, United Kingdom
$1.9M
raised

Kooling builds technology that empowers Enterprises decarbonise their business and deliver environmental leadership.

Nov 2021
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$7.5M
raised

Ammobia is a chemical manufacturing company that specializes in the clean production of ammonia through renewable hydrogen and air.

Jan 2026
Seed

Founder Contacts

30,000+ verified contacts

Eindhoven, The Netherlands
$5.4M
raised

S-ALD, nano coating, reducing the dependency on scarce material, electrolysers, fuel cells, batteries

Nov 2022
Seed

Founder Contacts

30,000+ verified contacts

London, United Kingdom
$698K
raised

Renewable energy & infrastructure deal origination platform

Nov 2022
Seed

Founder Contacts

30,000+ verified contacts

Crewkerne, United Kingdom

Biomass to biochar using proprietary advanced pyrolytic technology in a Disposal as a Service model

Jan 2026
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Paris, France
$7.8M
raised

Pyxo replace disposable packaging of food through a network of reusable containers.

Nov 2021
Seed

Founder Contacts

30,000+ verified contacts

San Diego, United States
$1.0M
raised

Energy Cloud® is a clean-tech company focused on energy efficiency, sustainability and healthy building environments.

Jan 2024
Seed

Founder Contacts

30,000+ verified contacts

Mooresville, United States
$500K
raised

Sheets Laundry provides plastic-free, Eco-friendly Laundry Detergent Sheets and cleaning products.

Nov 2021
Pre-Seed

Founder Contacts

30,000+ verified contacts

New York, United States
$3.0M
raised

Sustain.Life enables businesses of any size to meet sustainability targets with carbon tracking and accounting.

Nov 2022
Seed

Founder Contacts

30,000+ verified contacts

Izmir, Turkey
$470K
raised

Blueit digitizes the entire water cycle and turns water data into intelligent, scalable sustainability actions.

Nov 2025
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Munich, Germany
$4.3M
raised

Battery infrastructure for electrified depots and industrial hubs.

Nov 2025
Seed

Founder Contacts

30,000+ verified contacts

Nantes, France

Simple, powerful floating solar technology

Nov 2023
Seed

Founder Contacts

30,000+ verified contacts

Las Vegas, United States
$285K
raised

Promethium provides commercial HVAC air purification systems.

Nov 2022
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$2.5M
raised

Recytics is an AI platform that provides real-time waste flow insights to improve sorting and optimize collection operations.

Nov 2025
Seed

Founder Contacts

30,000+ verified contacts

Miami, United States
$1.5M
raised

BetaBlocks is a web 3.0 infrastructure company. We provide a white label solution for brands to create digital asset marketplaces.

Nov 2021
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Denver, United States

Blaze Energy Technologies is a manufacturing company that develops technologies to adopt alternative fuels through existing engines.

Nov 2024
Seed

Founder Contacts

30,000+ verified contacts

Somerville, United States
$800K
raised

Sol Clarity specializes in the development and production of self-cleaning solar.

Nov 2022
Pre-Seed

Founder Contacts

30,000+ verified contacts

Tallinn, Estonia
$1.7M
raised

Verified carbon emission credits from increased material recovery

Nov 2021
Pre-Seed

Founder Contacts

30,000+ verified contacts

London, United Kingdom
$249K
raised

Realfin is the London-based global leader in real assets data & intelligence with the world's largest real assets data platform, RealfinX.

Nov 2021
Pre-Seed

Founder Contacts

30,000+ verified contacts

Bend, United States
$2.5M
raised

Riff offers cold brewed coffee, food science, and craft beverage.

Nov 2021
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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San Diego, United States
$6.2M
raised

ChargeNet Stations specializes in the fields of SaaS, cleantech, electric vehicle supply equipment, and distributed energy resources.

Jan 2022
Seed

Founder Contacts

30,000+ verified contacts

Indianapolis, United States
$3.1M
raised

Smart Apply develops a density-based sprayer technology that cuts pesticides with less waste and higher yields.

Oct 2022
Seed

Founder Contacts

30,000+ verified contacts

Torino, Italy
$347K
raised

Aquaseek uses a patented energy-neutral and sustainable technology to generate clean water from the air.

Oct 2021
Seed

Founder Contacts

30,000+ verified contacts

Mannheim, Germany

ICODOS de-fossilizes the shipping and chemical industries with a patented, breakthrough technology for the production of e-methanol.

Oct 2023
Pre-Seed

Founder Contacts

30,000+ verified contacts

New York, United States
$750K
raised

FLIT Invest is an automated impact investing app that allows users to align their investments with their values without sacrificing returns

Oct 2022
Pre-Seed

Founder Contacts

30,000+ verified contacts

Showing 251 to 275 of 289 companies

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289 CleanTech Seed Startups (August 2026) — Page 11 | VCBacked