What they do:
Building a nervous system for the atmosphere
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HQ: San Francisco, CA, United States
Top Climate & Energy Startups in San Francisco
This list has 90 startups and was last updated on Oct 15, 2026. 13 of them are hiring right now. Largest teams: Cruise, Momentus, and Gridware. Latest round: Aikido Technologies raised $1.72M (Oct 8, 2026).
90 startupsPage 2 of 3
What they do:
We build floating solar data centers
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HQ: San Francisco, CA, United States
What they do:
Streamlining Data Capture to Report Creation for Heavy Industries
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HQ: San Francisco, CA, United States
What they do:
Robots that run autonomous depots for autonomous fleets.
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HQ: San Francisco, CA, United States
What they do:
Microgrids in a box built anywhere in days
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HQ: San Francisco, CA, United States
What they do:
Cutting edge hydrofoil systems for boatbuilders
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HQ: San Francisco, CA, United States
What they do:
Batteries and solar for $0 upfront to help businesses save money
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HQ: San Francisco, CA, United States
What they do:
A stealth mode startup.
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HQ: San Francisco, CA, United States
What they do:
Engineering microbes for miners to unlock billions in trapped metal
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HQ: San Francisco, CA, United States
What they do:
Growing seaweed to stabilize the climate.
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HQ: San Francisco, CA, United States
What they do:
Genetically engineering plants for disease resistance.
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HQ: San Francisco, CA, United States
What they do:
AI-native remote operations center for hardware fleets
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HQ: San Francisco, CA, United States
What they do:
The robot workforce for infrastructure
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HQ: San Francisco, CA, United States
What they do:
Drones that clear clouds over solar farms and weaken hurricanes
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HQ: San Francisco, CA, United States
What they do:
Hyper-efficient coolers for data centers
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HQ: San Francisco, CA, United States
What they do:
Simulating Agents Running Industrial Companies
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HQ: San Francisco, CA, United States
What they do:
AI-Native Engineering Firm designing Data Centers
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HQ: San Francisco, CA, United States
What they do:
Deploying robots to replace workers in hazardous spaces
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HQ: San Francisco, CA, United States
What they do:
Floating nuclear powered data centers at sea.
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HQ: San Francisco, CA, United States
What they do:
AI for the industries that power America.
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HQ: San Francisco, CA, United States
What they do:
Eclipse Foods is building the future of dairy using micelles, the…
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HQ: San Francisco, CA, United States
YC W19Growth stage
What they do:
We help Fortune 500 companies hedge their supply chain risk
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HQ: San Francisco, CA, United States
YC S26Early stage
Cruise
Acquired
What they do:
Self-driving cars.
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HQ: San Francisco, CA, United States
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HQ: San Francisco, CA, United States
Incorporated: 2025
Funding:
$52.6M · Equity · May 2026
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HQ: San Francisco, CA, United States
Incorporated: 2023
Funding:
$21M · Equity · Mar 2026
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HQ: San Francisco, CA, United States
Incorporated: 2024
Funding:
$8.81M · Equity · Jan 2026
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HQ: San Francisco, CA, United States
Incorporated: 2022
Funding:
$1.72M · Equity · Oct 2026
Pachama
Acquired
What they do:
Restoring nature to solve climate change.
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HQ: San Francisco, CA, United States
Current Foods
Acquired
What they do:
Impossible foods of seafood.
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HQ: San Francisco, CA, United States
Nebia
Acquired
What they do:
Nebia is a breakthrough shower system, based on a premium experience,…
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HQ: San Francisco, CA, United States
inBalance
Acquired
What they do:
Electricity price forecasts for energy storage, ev charging, etc.
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HQ: San Francisco, CA, United States
Curo
Acquired
What they do:
Electric fleets park and charge anywhere with Curo
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HQ: San Francisco, CA, United States
Orbillion Bio
Acquired
What they do:
Tasty and scalable cultivated meat at price parity
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HQ: San Francisco, CA, United States
Vayable
Acquired
What they do:
We're building a marketplace for unique travel experiences (it's…
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HQ: San Francisco, CA, United States
Moxion Power Co.
Shut down
What they do:
Mobile Energy Storage Technology
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HQ: San Francisco, CA, United States
Inevitable Tech
Shut down
What they do:
To make food a renewable resource, for everyone
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HQ: San Francisco, CA, United States