Clean Edge 100

The 2025 Clean Edge 100, our second annual ranking of the 100 top publicly traded clean-tech companies in clean energy, transportation, water, and the grid, finds continued global industry leadership in the U.S. and China. Eligible companies are members of our global equity research universe of more than 650 companies, and the rankings only include companies that are determined to receive 50% or more of their revenue from clean-tech activities (pure plays). Companies are ranked according to an equally weighted composite of market capitalization, revenue, and operating profit. Revenue and operating profit are adjusted by business exposure as evaluated by Clean Edge. 

This year’s list of 100 top-ranked companies includes energy storage & conversion behemoths BYD, CATL, and Tesla; grid infrastructure leaders Eaton, E.ON, and Schneider Electric; and water innovators Ecolab, Veolia, and Xylem. U.S.-domiciled and China-domiciled companies lead the pack with 26 and 23 listings respectively, followed by Brazil with seven and the United Kingdom and South Korea tied with five each. In terms of the top sectors in this year’s rankings, renewable energy and grid lead with 28 companies each, followed by water and energy storage & conversion with 23 and 16 selections respectively.

For more information on this year’s rankings (including some of the notable companies that came in or dropped out), check out the 2025 Clean Edge 100 Data Dive.

The rankings listed below were updated on August 12, 2025.