Series A · San Francisco, CA
Builds and operates software-enabled mines.
BuildList
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Company Directory
A curated directory of energy & climate companies headquartered in SF Bay Area, with live hiring activity and funding context.
48 companies · Updated 8/11/2026
Series A · San Francisco, CA
Builds and operates software-enabled mines.
Builds micro nuclear reactors.
Lithium-sulfur batteries and 3D graphene supermaterials for energy and defense.
Series B · Scotts Valley, CA
Builds grid-scale power electronics.
Series C+ · Sunnyvale, CA
Stores zero-carbon industrial heat.
Series A · Fremont, CA
Commercializes fusion energy.
Series A · Burlingame, CA
Builds sodium-ion batteries.
Series C+ · Berkeley, CA
Discovers new material deposits.
Series C+ · Alameda, CA
Manufactures graphite battery anodes.
Deploys remote grid sensors.
Builds pulsed fusion generators.
Series B · Oakland, CA
Builds thermal energy storage.
Series C+ · Mountain View, CA
Powers homes with batteries that form virtual power plants.
Pairs solar with battery storage for round-the-clock off-grid power.
Series C+ · Oakland, CA
Deploys rapid robotic power systems.
Series C+ · San Francisco, CA
Sequesters carbon underground via bio-oil.
Manages power procurement with AI.
Seed · Redwood City, CA
Installs fast, transparent heat pumps.
Produces fuels from captured CO₂.
Series C+ · San Carlos, CA
Builds flexible solar cells.
Optimizes EV charging grids.
Series A · San Jose, CA
Improves lithium-ion battery electrolytes.
Seed · San Francisco, CA
Digitizes infrastructure development.
Removes carbon dioxide from the air using limestone-based direct air capture.
Series A · San Francisco, CA
Builds battery-backed electric stoves.
Series C+ · Oakland, CA
Improves lithium extraction efficiency.
Series C+ · San Francisco, CA
Boosts carbon capture via trees.
Series C+ · San Francisco, CA
Cuts building energy costs.
Series A · San Francisco, CA
Produces carbon-neutral magnesium.
Seed · Oakland, CA
Electrifies chemical production.
Series C+ · San Francisco, CA
Scales battery swapping systems.
Seed · San Francisco, CA
Delivers AI-driven weather intelligence.
Public · Berkeley, CA
Buries nuclear waste.
Series B · San Francisco, CA
Discovers and develops critical minerals.
Seed · San Bruno, CA
Extracts battery materials from brine.
Series B · San Francisco, CA
Optimizes electric grid performance.
Seed · San Francisco, CA
Clean, firm power portfolios for hyperscale data centers and large industrials.
Seed · Mountain View, CA
Manufactures zero-emission concrete.
Series C+ · San Jose, CA
Trades industrial chemicals online.
Seed · Healdsburg, CA
Makes electricity with light.
Series A · Emeryville, CA
Optimizes battery manufacturing data.
Seed · Box Elder, SD
Explores solar geoengineering.
Seed · San Francisco, CA
Advances fusion plant technology.
Series B · Mountain View, CA
Manufactures battery cathodes.
Seed · San Francisco, CA
Builds backup power for inside the home.
Seed · San Francisco, CA
Builds an atmospheric sensing network.
Series A · San Jose, CA
Next-generation battery technology for scalable clean energy storage.
Seed · San Francisco, CA
Stores hydrogen for heavy transport.
BuildList includes active companies with a canonical sector and headquarters metro. Hiring counts come from verified openings collected directly from company applicant-tracking systems.