Top Clean Tech Companies
607 Clean Tech companies, sorted by total funding raised.
RoadRunner Recycling is a technology-enabled marketplace for commercial recycling and waste removal.
Enter helps large companies use AI to boost legal efficiency and win more cases.
Digital energy company using an app and smart technology to sell renewable electricity and optimi...
GHGSat is a global leader in high-resolution satellite monitoring of greenhouse gas emissions, pr...
A new standard for disinfection
AI-native geothermal company that uses subsurface data and geoscience to find and develop utility...
Develops electrochemical lithium refining technology to produce battery-grade lithium for produce...
A mining company powered by technology, eliminating waste and creating sustainably produced metal...
Simplify the Management of Renewable Energy Assets We offer purpose-built technologies and servic...
Recycles rare earth elements from end-of-life products to supply magnet manufacturers and industr...
A renewable energy transaction platform connecting C&I power buyers to PPAs from utility-scale wi...
Connecting investors with great commercial solar projects
MIT startup to watch in 2026.
OneD Battery Sciences develops SINANODE silicon nanowire anode technology that boosts EV battery ...
Manufactures dynamic alkaline electrolysis systems for large-scale green hydrogen production, pai...
Next-generation geothermal energy company developing the Eavor-Loop closed-loop system for scalab...
Carbon mineralization technology for concrete producers that injects captured CO₂ into fresh conc...
Developed modular hydrogen storage and fuel-cell retrofit systems for regional aircraft to enable...
Wynd digitalizes physical stores through connected businesses.
Cleantech startup developing methane pyrolysis technology to produce low-cost clean hydrogen and ...
Kula Bio develops sustainable, biological nitrogen fertilizers by energizing nitrogen-fixing micr...
Switzerland-based provider of natural fibre-based sustainable lightweighting solutions
Smart Wires provides grid-enhancing power flow control technology and software that helps electri...
Carbon capture technology company that transforms industrial byproducts like iron and steel slag ...
Smart building operating system that combines IoT hardware, sensors, and AI-driven software to op...