10 Climate Tech
Companies to Watch
Each year, the MIT Technology Review team puts together a list of some of the most promising climate tech companies in the world. Whether early-stage startup or multinational corporation, the businesses we’ve chosen are working on technologies to help us address climate change or adapt to our warming world.
There’s an urgent need for these innovators: We must begin to drastically reduce emissions to avoid the deadliest impacts of climate change, while also contending with its harmful effects.
We hope that this list highlights the progress the world is making to tackle the climate crisis, as well as the breadth of solutions required. From energy storage powered by carbon dioxide to cleaner ways to make cement and refine critical minerals, these companies are building technologies to address the acute challenges we face.
This is the fourth annual edition of this list. Learn more about how we chose the 2026 slate.
Energy Dome
TechnologyEnergy storage
LocationMilan, Italy
Founded2020
WaveSave
TechnologyFlood barriers
LocationEindhoven, the Netherlands
Founded2017
2nd year on the list Envision Energy
TechnologyWind turbines
LocationShanghai, China
Founded2007
Brimstone
TechnologyHeavy industry
LocationOakland, US
Founded2019
3rd year on the list Fervo Energy
TechnologyGeothermal energy
LocationHouston, US
Founded2017
WeLion New Energy
TechnologyEnergy storage
LocationBeijing, China
Founded2016
BasiGo
TechnologyElectric vehicles
LocationNairobi, Kenya
Founded2021
2nd year on the list Form Energy
TechnologyEnergy storage
LocationSomerville, US
Founded2017
X-energy
TechnologyNuclear fission
LocationRockville, US
Founded2009
Moment Energy
TechnologyBattery repurposing
LocationVancouver, Canada
Founded2019
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