Builds micro nuclear reactors.
Series A · San Francisco, CA
Builds and operates software-enabled mines.
Series B · Scotts Valley, CA
Builds grid-scale power electronics.
Builds pulsed fusion generators.
Series C+ · Sunnyvale, CA
Stores zero-carbon industrial heat.
Series C+ · Berkeley, CA
Discovers new material deposits.
Lithium-sulfur batteries and 3D graphene supermaterials for energy and defense.
Series A · Fremont, CA
Commercializes fusion energy.
Series B · Burlingame, CA
Builds sodium-ion batteries.
Series C+ · Alameda, CA
Manufactures graphite battery anodes.
Deploys remote grid sensors.
Series C+ · Mountain View, CA
Powers homes with batteries that form virtual power plants.
Series C+ · Oakland, CA
Deploys rapid robotic power systems.
Series B · Oakland, CA
Builds thermal energy storage.
Seed · San Francisco, CA
Builds a national direct-current power backbone for AI data centers and American industry.
Pairs solar with battery storage for round-the-clock off-grid power.
Series C+ · San Francisco, CA
Sequesters carbon underground via bio-oil.
Manages power procurement with AI.
18 of 50 shown
How this list is built
BuildList includes active companies with a canonical sector and headquarters metro. Hiring counts come from verified openings collected directly from company applicant-tracking systems.