US novel energy startups
144 US startups reinventing how energy is generated, stored and moved — nuclear fusion and fission, next-gen batteries, clean hydrogen and ammonia, geothermal, novel solar, carbon removal and grid tech. Combined funding $38B across 25 unicorns.
Nuclear fusion
Helion Energy Pacific Fusion Commonwealth Fusion Systems Inertia Acceleron Fusion Marathon Fusion Blue Laser Fusion Realta Fusion Type One Energy Thea Energy Xcimer Energy Avalanche Energy
Nuclear fission
Valar Atomics Antares LIS Technologies Curio Aalo Atomics Nano Nuclear Energy Last Energy X-energy Radiant Industries Deep Isolation Oklo Terrestrial Energy
Novel batteries for mobile applications (EVs, aviation, drones)
Zeno Power Estes Energy Solutions, Inc. Element Energy Safire Techology Adden Energy SAKUU AM Batteries Factorial Energy Anthro Energy Lyten Blue Current EnergyX
Stationary energy storage
Advanced Battery Concepts Primus Power Ambri Eos Energy Enterprises Enphase Energy Malta Form Energy Antora Energy Group1 Inlyte Energy PEAK ENERGY Rondo Energy
Thermal energy storage
Fourth Power Electrified Thermal Solutions
Hydrogen & ammonia
Ammobia Peregrine Hydrogen Fourier Gen-hy Koloma Molten Industries Evoloh Hgen Monolith Materials Verdagy Ohmium Electric Hydrogen
Novel solar tech
Reflect Orbital CubicPV Ambient Photonics Tandem PV Ubiquitous Energy 1366 Technologies Genomatica AmberWave Suniva
Geothermal
Dig Energy XGS Energy Zanskar Galvanize Therapeutics Sage Geosystems Quaise I-Pulse Fervo Energy
Other novel energy generation
Arbor Energy JTEC Energy Mainspring C-Power
Direct air capture (DAC)
280 Earth Captura Avnos AirCapture Carbon Capture Heirloom Carbon Syzygy Plasmonics
Point source carbon capture & storage
ION Clean Energy Mantel Noya Verdox
Other carbon removal
equatic Vycarb Carba Charm Industrial
Grid tech
Heron Power TS Conductor Veir Smart Wires MetOx International
Dealroom.co