Why we’re watching these climate tech companies

This week, we released our 2026 version of our Climate Tech Companies to Watch list. It’s an annual project that the MIT Technology Review team puts together. Our goal is to highlight some of the promising, interesting advances and firms we think are worth paying attention to in the world of climate and energy technology.

Our chosen companies tend to reflect several aspects of the current moment. Here are some of the companies we picked and the key themes worth…