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Undisclosed CleanTech Companies

Explore 17 cleantech startups that raised undisclosed funding. Access verified founder contact information and fundraising data.

Total Companies
17
Total Funding
$83.4M
Avg Funding
$4.9M
Cities
17

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Charlevoix, United States
$20.0M
raised

GasTechno Energy and Fuels is a CleanTech Emissions Reduction company that converts stranded gas into valuable chemicals and fuels.

Sep 2025
Undisclosed

Founder Contacts

41,000+ verified contacts

Vancouver, Canada
$2.2M
raised

RZOLV Technologies focused on developing advanced, technology-driven solutions to improve mining operations.

Sep 2025
Undisclosed

Founder Contacts

41,000+ verified contacts

Concord, Canada
$350K
raised

SmartCocoon Smart booster fans enable micro-zoning / room by room climate control system, providing comfort & energy saving benefits

Aug 2022
Undisclosed

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$13.3M
raised

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

Jul 2023
Undisclosed

Founder Contacts

41,000+ verified contacts

Barcelona, Spain
$521K
raised

Electricty from nature.

Jul 2022
Undisclosed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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East Setauket, United States
$3.7M
raised

A decentralized network of fully-automated indoor vertical farms.

Jul 2023
Undisclosed

Founder Contacts

41,000+ verified contacts

$371K
raised

CYTOK turns hydrogen & CO₂ into green methane. Patented CCU/CCR tech for MW-scale storage & full energy autonomy

Jun 2025
Undisclosed

Founder Contacts

41,000+ verified contacts

Binghamton, United States

Natrion is developing scalable solid-state electrolytes to enable the mass adoption of EVs.

May 2026
Undisclosed

Founder Contacts

41,000+ verified contacts

Montréal, Canada
$32.4M
raised

Torngat Metals provides separated rare earth oxides based on its mine feed and recycled feeds, such as end of life magnets and motors.

Apr 2026
Undisclosed

Founder Contacts

41,000+ verified contacts

Lytham, United Kingdom

Using innovative electrochemistry and process engineering. Carbonbit Technologies develops best in class Direct Air Capture technology.

Mar 2025
Undisclosed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Stockholm, Sweden
$1.9M
raised

Our mission is to battle global warming by reducing methane emissions from cows.

Mar 2026
Undisclosed

Founder Contacts

41,000+ verified contacts

Singapore, Singapore

August Energy helps businesses achieve profitable, scalable decarbonisation through renewable, storage, cooling, and bioenergy solutions.

Jan 2026
Undisclosed

Founder Contacts

41,000+ verified contacts

Lebanon, United States
$3.7M
raised

FreshAir Sensor develops molecular air quality monitoring systems that help property operators track and manage indoor environments.

Dec 2024
Undisclosed

Founder Contacts

41,000+ verified contacts

Calgary, Canada
$3.7M
raised

Carbonova is a company that develops carbon nanofibres for its extraordinary market applications.

Dec 2025
Undisclosed

Founder Contacts

41,000+ verified contacts

Oslo, Norway
$554K
raised

Digital infrastructure for a Circular Economy

Nov 2022
Undisclosed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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São Paulo, Brazil
$694K
raised

Eos is a Fintech company

Oct 2024
Undisclosed

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
Undisclosed

Founder Contacts

41,000+ verified contacts

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