All Industries

Top Clean Tech Companies

607 Clean Tech companies, sorted by total funding raised.

Mushroom Material

A sustainable mushroom based alternative to polystyrene Styrofoam and cardboard packaging

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

Cleantech company using patented microwave depolymerization technology to recycle polystyrene pla...

Montreal, Canada11–50Clean Tech, Materials Science
Grant·$5.0M·May 2021
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
Equity Crowdfunding·$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
Gridsight

Building AI-powered grid flexibility platform to help grid operators transition to distribution s...

Sydney51–200Artificial Intelligence, Clean Tech
Series A·$4.5M·Apr 2025
Oxylus Energy

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

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

Green revolution for Industry 4.0.

Barcelona, Spain11–50Clean Energy, Clean Tech
Growth Equity·$4.5M·Jan 2023
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
Boldr

Smart home heating & cooling

London, United KingdomClean Tech, IoT
Seed·$4.4M·Sep 2025
Pelikan Mobility

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

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

Crypto network for virtualized power asset monetization.

United States1–10Clean Tech, Crypto & Web3
Seed·$4.2M·Nov 2022
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
CarboMat

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

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

Petra Power is a manufacturing company that focuses on Solid Oxide Fuel Cells (SOFC) for APU syst...

Solon, United States11–50Clean Tech, Climate Tech
Venture Round·$4.0M
ECO2GROW

Making sourcing green energy as easy as possible for businesses.

Bonn, Germany1–10Clean Tech
Seed·$4.0M·Jul 2024
HomeBoost

Platform for home energy assessments and efficiency savings for homeowners and BPI-certified prof...

Clean Tech, Energy
Seed·$4.0M·Oct 2024
Sunthetics

Sunthetics develops smart, AI-enabled electrochemical reactors that enable the fast, hyper-effici...

New York, United States1–10Artificial Intelligence, Clean Tech
Seed·$4.0M·Oct 2024
Renoster Systems

Deep Transparency for the world's carbon credits.

Austin, United States1–10Artificial Intelligence, Clean Tech
Seed·$3.8M·Jul 2023
Mesodyne

Silent, reliable, long-endurance power from any fuel.

Somerville, United States11–50Clean Tech, Nanotechnology
Seed·$3.7M·Dec 2022