WATERFX
Shut down
What they do:
The world's first 100% sustainable water provider (aka alternative…
Quick facts:
HQ: CA, United States
Top Climate & Energy Startups
This list has 331 startups and was last updated on Oct 15, 2026. 38 of them are hiring right now. Biggest hubs: San Francisco (90), New York (15), and Los Angeles (12). Largest teams: Cruise, Aerones, and Oolu. Latest round: Circularity Fuels raised $8.79M (Oct 14, 2026).
Survival statistics →75 open roles →
331 startupsPage 10 of 10
Wattvision
Shut down
What they do:
Sensors and software for energy tracking. Like 'fitbit' for your…
Quick facts:
HQ: Princeton, NJ, United States
CO2Stats
Shut down
What they do:
Social and environmental web analytics. Acquired in December 2016.
Quick facts:
HQ: Boston, MA, United States
YC S08Early stage
Ohm
Shut down
What they do:
Never jump start your car again.
Quick facts:
HQ: San Francisco, CA, United States
YC S15Early stage
Spero Foods
Shut down
What they do:
dairy reinvented from plants
Quick facts:
HQ: San Francisco, CA, United States
YC S18Growth stage
Micro Meat
Shut down
What they do:
Technologies for scaling up cultured/clean meat production
Quick facts:
YC S21Early stage
Canopi
Shut down
What they do:
API to measure and eliminate carbon emissions
Quick facts:
HQ: San Francisco, CA, United States