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Seed Sustainability Companies

Explore 508 sustainability startups that raised seed funding. Access verified founder contact information and fundraising data.

Total Companies
508
Total Funding
$96.7M
Avg Funding
$3.9M
Cities
20

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Jackson, United States
$1.5M
raised

Land and Carbon is climate solutions company that restores degraded lands with carbon solutions to capture gigatons of CO2.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$2.5M
raised

Fermeate provides photomolecular fermentation technology to increase sustainability and efficiency in the biomanufacturing industry.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

Chicago, United States
$1.5M
raised

Stock is a marketplace where brands and 3PLs list excess inventory for donation to nonprofits, reducing waste and supporting causes.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

$485K
raised

Jefferson Timber Cooperative Cooperative offers zero- waste wood products made from sawdust, offcuts, and planer shavings.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

Wilmington, United States
$1.4M
raised

Sinai.ai provides a software platform focused on enterprise decarbonization and ESG reporting.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Zürich, Switzerland
$4.0M
raised

Covalo connects consumer goods brands with ingredient, packaging, and service suppliers to support product development.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

Zürich, Switzerland

SOORT is an AI-powered shopping concierge that helps people find better options — cheaper, local, or circular — on their own terms.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

Denver, United States
$2.6M
raised

Colibriv is an Aviation startup developing hydrogen-powered aircraft with AI-driven safety and efficiency technologies

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

Singapore, Singapore
$3.0M
raised

MediSun develops modular desalination and brine recovery systems that convert brine into clean water, minerals, and energy.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

Singapore, Singapore
$1.0M
raised

Amplicity provides a turnkey solution to transform idle industrial backup batteries into revenue-generating smart energy assets.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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Paris, France
$3.4M
raised

Fairglow is an environmental management platform that offers life cycle assessment, carbon accounting, and eco-design tools using AI.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

Houston, United States
$12.0M
raised

Helix Earth is applying our NASA-born technology to improve commercial products and processes financially and for the benefit of humankind.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

Stockholm, Sweden
$11.6M
raised

Accelerating the world´s transition to a circular economy, by transforming agricultural & textile wastes to resources.

Mar 2026
Seed

Founder Contacts

41,000+ 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

41,000+ verified contacts

Maryland, United States
$181K
raised

Carbon Country is a sustainable land that is focusing on combining renewable energy, regenerative agriculture, and Bitcoin mining.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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Brussels, Belgium
$1.7M
raised

One Planet Studio accelerates cross-border cleantech transfer driving a decarbonized Built Environment in the Benelux.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

Brooklyn, United States
$7.5M
raised

Coral is a fintech platform that provides software who install things like heat pumps, EV chargers, and home batteries.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

$4.4M
raised

Ilion Water Technologies specializes in innovative water treatment solutions, ensuring clean and sustainable water for communities.

Mar 2026
Seed

Founder Contacts

41,000+ verified contacts

Berlin, Germany
$470K
raised

SaaS, PropTech, 3D Scanning, 3DGS, Gaussian Splatting, Splats, AI

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Torrance, United States
$13.0M
raised

Aqua Theon is a biotech startup creating seaweed-based products for food, wellness, and sustainable packaging.​

Feb 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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Aarup, Denmark
$395K
raised

Insutex is a construction company that focus on sustainability by offering environmental friendly construction materials from textile waste.

Feb 2026
Seed

Founder Contacts

41,000+ verified contacts

Zürich, Switzerland
$9.6M
raised

Optiml develops software that supports real estate decarbonization and energy transition planning.

Feb 2026
Seed

Founder Contacts

41,000+ verified contacts

Vienna, Austria
$2.3M
raised

Refinq develops a nature risk management platform that combines biodiversity and ecosystem data with physical climate risk scenarios.

Feb 2026
Seed

Founder Contacts

41,000+ verified contacts

Philadelphia, United States

Coblr is the system of record powering the $25B global fashion repair industry.

Feb 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Cambridge, United Kingdom
$5.0M
raised

Sparxell creates the next generation of colors and effects.

Feb 2026
Seed

Founder Contacts

41,000+ verified contacts

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508 Sustainability Seed Startups (October 2026) — Page 2 | VCBacked