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Seed CleanTech Companies

Explore 118 cleantech startups that raised seed funding. Access verified founder contact information and fundraising data.

Total Companies
118
Total Funding
$69.0M
Avg Funding
$2.8M
Cities
22

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Brussels, Belgium
$378K
raised

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

May 2026
Seed

Founder Contacts

19,000+ verified contacts

Edinburgh, United Kingdom

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

Apr 2026
Seed

Founder Contacts

19,000+ verified contacts

Dover, United States

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

Apr 2026
Pre-Seed

Founder Contacts

19,000+ verified contacts

San Francisco, United States
$5.6M
raised

Peltier is a platform powering a modular, IoT-connected cold-chain system for precise, sustainable temperature control.

Mar 2026
Seed

Founder Contacts

19,000+ verified contacts

Cambridge, United States
$3.0M
raised

MacroCycle Technologies is a cleantech company that develops sustainable and zero-carbon plastic upcycling solutions.

Mar 2026
Seed

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Wernigerode, Germany
$7.6M
raised

Litherm Technologies is a German deep‑tech startup focused on decarbonizing lime and cement production using fully electric kiln technology.

Mar 2026
Seed

Founder Contacts

19,000+ verified contacts

San Francisco, United States
NaN

Praan is a deep tech company focused on particulate matter and CO2 capture using patent-pending technology.

Mar 2026
Seed

Founder Contacts

19,000+ verified contacts

Singapore, Singapore
$7.0M
raised

Zevero offers AI-powered software combined with sustainability experts to help businesses track emissions and develop a net-zero strategy.

Mar 2026
Seed

Founder Contacts

19,000+ verified contacts

Luxembourg, Luxembourg
$8.7M
raised

Uplift360 develops chemical regeneration and recycling technologies to recover and reuse high-performance industrial materials.

Feb 2026
Seed

Founder Contacts

19,000+ verified contacts

Singapore, Singapore
$5.0M
raised

HYDGEN develops modular electrolyzer systems designed for on-site and on-demand green hydrogen production.

Oct 2025
Seed

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
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Berlin, Germany
$5.0M
raised

Bees & Bears is a green fintech company that specializes in financing renewable energy solutions.

Oct 2025
Seed

Founder Contacts

19,000+ verified contacts

Melbourne, Australia
$1.9M
raised

Conry Tech is reinventing air-conditioning to improve comfort and make it sustainable, founded by award winning HVAC experts.

Oct 2025
Seed

Founder Contacts

19,000+ verified contacts

London, United Kingdom
$3.2M
raised

Empowering households to reduce energy consumption while making homes a proactive part of the energy grid.

Sep 2025
Seed

Founder Contacts

19,000+ verified contacts

Singapore, Singapore
$1.5M
raised

Developing bio-based ingredients replacing microplastics and polymeric ingredients.

Sep 2025
Seed

Founder Contacts

19,000+ verified contacts

Bolingbrook, United States
$2.1M
raised

Converting waste streams into value streams.

Aug 2025
Seed

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
Unlimited exports
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Clermont Herault, France
$1.6M
raised

Justclip offers DIY electrical installation kits designed to make electrical work accessible to everyone, without technical skills.

Jul 2025
Seed

Founder Contacts

19,000+ verified contacts

Stockholm, Sweden
$1.5M
raised

Tether builds AI that turns millions of parked EVs into the world's largest battery

Jun 2025
Pre-Seed

Founder Contacts

19,000+ verified contacts

Golden, Canada
$2.0M
raised

Edison Motors is a manufacturing company that builds and offers electric-hybrid vocational trucks.

Jun 2025
Seed

Founder Contacts

19,000+ verified contacts

Turin, Italy
$751K
raised

SUNSPEKER creates a fully recyclable graphic cover able to camouflage any solar panel.

Jun 2025
Seed

Founder Contacts

19,000+ verified contacts

$3.4M
raised

Lumoview digitizes buildings in 2 seconds per room and empowers owners to improve their buildings and reduce CO2 emissions.

Jun 2025
Seed

Founder Contacts

19,000+ verified contacts

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19,000+ verified emails
Unlimited exports
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Saint-mandé, France
$3.4M
raised

Kumulus develops and operates machines that turn air into fresh drinking water

May 2025
Seed

Founder Contacts

19,000+ verified contacts

Herent, Belgium
$1.1M
raised

ScoptVisions white-label technology enables EV charger providers to dominate the home charging market.

May 2025
Seed

Founder Contacts

19,000+ verified contacts

Oudergem, Belgium
$964K
raised

SaaS, sustainability software

May 2025
Seed

Founder Contacts

19,000+ verified contacts

Walnut Creek, United States
$2.1M
raised

Energy Efficiency, Hospitality, SaaS, IoT, Smart Buildings

Apr 2025
Seed

Founder Contacts

19,000+ verified contacts

Vienna, Austria
$1.0M
raised

SALZSTROM is a sustainable technology company that focuses on sodium-ion batteries as a viable alternative to lithium-ion energy storage.

Apr 2025
Pre-Seed

Founder Contacts

19,000+ verified contacts

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118 Recently Funded CleanTech Seed Startups (June 2026) | VCBacked