2020 50TOWATCH

The Companies Fighting Our Biggest Battles with Innovation and Determination

We combed the global cleantech innovation ecosystem to find the top 50 early-stage companies dedicated to high-impact solutions that are nothing short of transformative. In our report, you'll meet:

• Innovators developing sustainable food sources
• Visionaries applying genius to recycling clothing
• Reformers delivering cleaner heating
• Leaders changing the way we move around.

Plus, you'll get to know more about the scale of the challenges ahead and the technologies that will help us find better, more sustainable ways to live.

Get the Complete Report

Get the Complete 2020 50 to Watch Report

Many say the climate crisis is irreversible. We’re guilty of too little, too late. And even the voices of millions of protesters only serve to underline our failures.

They may be right. But, we believe determination and innovation offer hope.  The 2020 50 to Watch report introduces you to the early-stage companies fighting to deliver innovative solutions that can change the way we live.

  • Meet companies selected for their outstanding potential by over 30 early-stage innovation experts and our own analysts.
  • Gain insight into the scale of the challenges that inspire the companies on the list.
  • Explore case studies on early-stage companies challenging the problems of desertification.

Latest Insight on 50 to Watch Companies


Cleantech 50 to Watch Case Study: Inseco

Solution: Inseco develops a production system to transform organic waste into animal feed.Nisa Mirza of Cleantech Group sat down with Inseco...

By Nisa Mirza

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About Cleantech Group

At Cleantech Group, we provide research, consulting and events to catalyze opportunities for sustainable growth powered by innovation. We bring clients access to the trends, companies and people shaping the future and the customized advice and support businesses need to engage external innovation.

Industries are undergoing definitive transitions toward a more digitized, de-carbonized and resource-efficient industrial future. At every stage from initial strategy to final deals, our services bring corporate change makers, investors, governments and stakeholders from across the ecosystem, the support they need to thrive in this fast-arriving and uncertain future.

The company was established in 2002 and is headquartered in San Francisco with a growing international presence based in London. Our parent company, Enovation Partners, is based in Chicago.