All Industries

Top Clean Tech Companies

575 Clean Tech companies, sorted by total funding raised.

Terragia

Develops technology to convert cellulosic biomass into low-carbon ethanol and liquid fuels for tr...

Lebanon, United States11–50Clean Tech, Renewable Energy
Seed·$6.0M·Mar 2024
PLANETARIANS

Most sustainable and affordable protein

Palo Alto, United StatesAgtech, Clean Tech
Seed·$6.0M·Feb 2023
RatedPowerAcquired

RatedPower developed pvDesign app, a SaaS to accelerate and optimize the design of Solar Photovol...

Madrid, SpainArtificial Intelligence, Clean Tech
Series A·$6.0M·Oct 2021
Nextron Energia

Energy-as-a-service clean-tech platform for renewable energy in Brazil.

São Paulo, Brazil51–200Clean Tech, Energy
Series A·$6.0M·Mar 2024
Earthodic

Earthodic is an Australian company that has developed a bio-based, water-resistant coating for pa...

Geebung, Australia1–10Energy, Clean Tech
Seed·$5.8M·Oct 2024
Cariqa

Cariqa: Transforming EV charging with integrated financial perks, simplified pricing, and enhance...

Berlin, Germany1–10Clean Tech, Sustainability
Seed·$5.8M·Jul 2025
Nelumbo

Surface modification technology startup improving heat exchanger and industrial surfaces.

Berkeley, United StatesClean Tech, Materials Science
Series A·$5.5M·Nov 2018
Heuristech

Differential Relectometry Mapping to assist with pipeline corrosion the correct way.

Strasbourg, FranceClean Tech, Climate Tech
Series A·$5.5M·Sep 2019
2NDNATURE

2NDNATURE builds enterprise cloud stormwater compliance and management software to inform clean w...

Santa Cruz, United StatesClean Tech, Climate Tech
Seed·$5.3M·Jun 2021
Crystal ISAcquired

Manufacturer of aluminum nitride-based UVC LEDs for water, air, and surface disinfection.

Green Island, United StatesClean Tech, Hardware
Series B·$5.0M·Sep 2006
Mushroom Material

A sustainable mushroom based alternative to polystyrene Styrofoam and cardboard packaging

Auckland, New Zealand1–10Agtech, Clean Tech
Seed·$5.0M·Aug 2024
CleanRobotics

Robotics for a greener tomorrow

Longmont, United States11–50Artificial Intelligence, Clean Tech
Grant·$4.9M·Oct 2022
Noteworthy AI

Noteworthy provides vehicle mounted cameras and AI to help electric utilities collect and analyze...

Stamford, United States11–50Artificial Intelligence, Clean Tech
Seed·$4.7M·Apr 2025
Global Air Cylinder Wheels

Engineering company that re-invented the wheel.

Chandler, United States1–10Retail, Clean Tech
Crowdfunding Equity·$4.7M·Mar 2026
Peerby

Borrow the things you need from others in their neighborhood.

Amsterdam, Netherlands11–50Clean Tech, Climate Tech
Extension Round·$4.6M·May 2022
Oxylus Energy

Oxylus is an e-methanol company working on CO2 electrolysis.

New Haven, United States1–10Energy, Carbon Capture
Seed·$4.5M·Sep 2024
Hive Power

Hive Power helps Energy Companies and Automakers to automate smart charging for electric vehicles.

Manno, Switzerland11–50Crypto & Web3, Clean Tech
Seed·$4.4M·Dec 2024
Pelikan Mobility

Software platform to optimize the electrification and operation of commercial fleets.

Paris, France1–10Artificial Intelligence, Clean Tech
Seed·$4.4M·Mar 2024
Boldr

Smart home heating & cooling

London, United KingdomClean Tech, IoT
Seed·$4.4M·Sep 2025
Sheets & Giggles

Rapidly growing direct-to-consumer brand offers premium, sustainable home textiles at an affordab...

Denver, United States11–50Clean Tech, Climate Tech
Seed·$4.3M·Jun 2021
TomTex

Designing the future of sustainable biomaterial

New York, United States1–10Biotech, Clean Tech
Seed·$4.2M·Nov 2023
Boson Motors

Boson Motors designs and manufactures certified light-duty electric vehicle powertrains and an An...

Milpitas, United StatesClean Tech, Climate Tech
Series A·$4.1M·Dec 2021
Enurgen

Deep-Tech Software Defining Utility Scale Solar Systems of Tomorrow Capturing Solar Asset Perfor...

Ottawa, Canada11–50Clean Tech, Climate Tech
Seed·$4.1M·Oct 2025
CarboMat

Transforming low-value waste by-products from Alberta into high-value carbon fiber.

Calgary, Canada1–10Sustainability, Clean Tech
Grant·$4.1M·Aug 2025
Resourcly

Resourcly helps manufacturers improve working capital with their shared inventory OS by leveragin...

Mannheim, Germany1–10Artificial Intelligence, Clean Tech
Seed·$4.0M·Oct 2025